mirror of
https://github.com/moodle/moodle.git
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8270f0d0bd
Changes to arbitrary areas of code that are necessary after the new API (mostly to replace deprecated function calls).
3214 lines
124 KiB
PHP
3214 lines
124 KiB
PHP
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Calendar extension
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*
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* @package core_calendar
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* @copyright 2004 Greek School Network (http://www.sch.gr), Jon Papaioannou,
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* Avgoustos Tsinakos
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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if (!defined('MOODLE_INTERNAL')) {
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die('Direct access to this script is forbidden.'); /// It must be included from a Moodle page
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}
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/**
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* These are read by the administration component to provide default values
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*/
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/**
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* CALENDAR_DEFAULT_UPCOMING_LOOKAHEAD - default value of upcoming event preference
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*/
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define('CALENDAR_DEFAULT_UPCOMING_LOOKAHEAD', 21);
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/**
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* CALENDAR_DEFAULT_UPCOMING_MAXEVENTS - default value to display the maximum number of upcoming event
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*/
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define('CALENDAR_DEFAULT_UPCOMING_MAXEVENTS', 10);
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/**
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* CALENDAR_DEFAULT_STARTING_WEEKDAY - default value to display the starting weekday
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*/
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define('CALENDAR_DEFAULT_STARTING_WEEKDAY', 1);
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// This is a packed bitfield: day X is "weekend" if $field & (1 << X) is true
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// Default value = 65 = 64 + 1 = 2^6 + 2^0 = Saturday & Sunday
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/**
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* CALENDAR_DEFAULT_WEEKEND - default value for weekend (Saturday & Sunday)
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*/
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define('CALENDAR_DEFAULT_WEEKEND', 65);
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/**
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* CALENDAR_URL - path to calendar's folder
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*/
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define('CALENDAR_URL', $CFG->wwwroot.'/calendar/');
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/**
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* CALENDAR_TF_24 - Calendar time in 24 hours format
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*/
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define('CALENDAR_TF_24', '%H:%M');
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/**
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* CALENDAR_TF_12 - Calendar time in 12 hours format
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*/
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define('CALENDAR_TF_12', '%I:%M %p');
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/**
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* CALENDAR_EVENT_GLOBAL - Global calendar event types
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*/
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define('CALENDAR_EVENT_GLOBAL', 1);
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/**
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* CALENDAR_EVENT_COURSE - Course calendar event types
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*/
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define('CALENDAR_EVENT_COURSE', 2);
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/**
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* CALENDAR_EVENT_GROUP - group calendar event types
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*/
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define('CALENDAR_EVENT_GROUP', 4);
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/**
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* CALENDAR_EVENT_USER - user calendar event types
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*/
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define('CALENDAR_EVENT_USER', 8);
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/**
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* CALENDAR_IMPORT_FROM_FILE - import the calendar from a file
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*/
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define('CALENDAR_IMPORT_FROM_FILE', 0);
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/**
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* CALENDAR_IMPORT_FROM_URL - import the calendar from a URL
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*/
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define('CALENDAR_IMPORT_FROM_URL', 1);
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/**
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* CALENDAR_IMPORT_EVENT_UPDATED - imported event was updated
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*/
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define('CALENDAR_IMPORT_EVENT_UPDATED', 1);
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/**
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* CALENDAR_IMPORT_EVENT_INSERTED - imported event was added by insert
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*/
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define('CALENDAR_IMPORT_EVENT_INSERTED', 2);
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/**
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* CALENDAR_SUBSCRIPTION_UPDATE - Used to represent update action for subscriptions in various forms.
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*/
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define('CALENDAR_SUBSCRIPTION_UPDATE', 1);
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/**
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* CALENDAR_SUBSCRIPTION_REMOVE - Used to represent remove action for subscriptions in various forms.
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*/
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define('CALENDAR_SUBSCRIPTION_REMOVE', 2);
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/**
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* Return the days of the week
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*
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* @return array array of days
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*/
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function calendar_get_days() {
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$calendartype = \core_calendar\type_factory::get_calendar_instance();
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return $calendartype->get_weekdays();
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}
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/**
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* Get the subscription from a given id
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*
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* @since Moodle 2.5
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* @param int $id id of the subscription
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* @return stdClass Subscription record from DB
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* @throws moodle_exception for an invalid id
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*/
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function calendar_get_subscription($id) {
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global $DB;
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$cache = cache::make('core', 'calendar_subscriptions');
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$subscription = $cache->get($id);
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if (empty($subscription)) {
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$subscription = $DB->get_record('event_subscriptions', array('id' => $id), '*', MUST_EXIST);
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// cache the data.
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$cache->set($id, $subscription);
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}
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return $subscription;
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}
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/**
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* Gets the first day of the week
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*
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* Used to be define('CALENDAR_STARTING_WEEKDAY', blah);
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*
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* @return int
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*/
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function calendar_get_starting_weekday() {
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$calendartype = \core_calendar\type_factory::get_calendar_instance();
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return $calendartype->get_starting_weekday();
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}
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/**
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* Generates the HTML for a miniature calendar
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*
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* @param array $courses list of course to list events from
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* @param array $groups list of group
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* @param array $users user's info
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* @param int|bool $calmonth calendar month in numeric, default is set to false
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* @param int|bool $calyear calendar month in numeric, default is set to false
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* @param string|bool $placement the place/page the calendar is set to appear - passed on the the controls function
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* @param int|bool $courseid id of the course the calendar is displayed on - passed on the the controls function
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* @param int $time the unixtimestamp representing the date we want to view, this is used instead of $calmonth
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* and $calyear to support multiple calendars
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* @return string $content return html table for mini calendar
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*/
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function calendar_get_mini($courses, $groups, $users, $calmonth = false, $calyear = false, $placement = false,
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$courseid = false, $time = 0) {
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global $CFG, $OUTPUT;
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// Get the calendar type we are using.
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$calendartype = \core_calendar\type_factory::get_calendar_instance();
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$display = new stdClass;
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// Assume we are not displaying this month for now.
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$display->thismonth = false;
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$content = '';
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// Do this check for backwards compatibility. The core should be passing a timestamp rather than month and year.
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// If a month and year are passed they will be in Gregorian.
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if (!empty($calmonth) && !empty($calyear)) {
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// Ensure it is a valid date, else we will just set it to the current timestamp.
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if (checkdate($calmonth, 1, $calyear)) {
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$time = make_timestamp($calyear, $calmonth, 1);
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} else {
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$time = time();
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}
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$date = usergetdate($time);
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if ($calmonth == $date['mon'] && $calyear == $date['year']) {
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$display->thismonth = true;
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}
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// We can overwrite date now with the date used by the calendar type, if it is not Gregorian, otherwise
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// there is no need as it is already in Gregorian.
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if ($calendartype->get_name() != 'gregorian') {
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$date = $calendartype->timestamp_to_date_array($time);
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}
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} else if (!empty($time)) {
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// Get the specified date in the calendar type being used.
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$date = $calendartype->timestamp_to_date_array($time);
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$thisdate = $calendartype->timestamp_to_date_array(time());
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if ($date['month'] == $thisdate['month'] && $date['year'] == $thisdate['year']) {
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$display->thismonth = true;
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// If we are the current month we want to set the date to the current date, not the start of the month.
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$date = $thisdate;
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}
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} else {
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// Get the current date in the calendar type being used.
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$time = time();
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$date = $calendartype->timestamp_to_date_array($time);
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$display->thismonth = true;
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}
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list($d, $m, $y) = array($date['mday'], $date['mon'], $date['year']); // This is what we want to display.
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// Get Gregorian date for the start of the month.
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$gregoriandate = $calendartype->convert_to_gregorian($date['year'], $date['mon'], 1);
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// Store the gregorian date values to be used later.
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list($gy, $gm, $gd, $gh, $gmin) = array($gregoriandate['year'], $gregoriandate['month'], $gregoriandate['day'],
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$gregoriandate['hour'], $gregoriandate['minute']);
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// Get the max number of days in this month for this calendar type.
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$display->maxdays = calendar_days_in_month($m, $y);
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// Get the starting week day for this month.
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$startwday = dayofweek(1, $m, $y);
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// Get the days in a week.
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$daynames = calendar_get_days();
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// Store the number of days in a week.
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$numberofdaysinweek = $calendartype->get_num_weekdays();
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// Set the min and max weekday.
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$display->minwday = calendar_get_starting_weekday();
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$display->maxwday = $display->minwday + ($numberofdaysinweek - 1);
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// These are used for DB queries, so we want unixtime, so we need to use Gregorian dates.
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$display->tstart = make_timestamp($gy, $gm, $gd, $gh, $gmin, 0);
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$display->tend = $display->tstart + ($display->maxdays * DAYSECS) - 1;
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// Align the starting weekday to fall in our display range
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// This is simple, not foolproof.
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if ($startwday < $display->minwday) {
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$startwday += $numberofdaysinweek;
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}
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// Get the events matching our criteria. Don't forget to offset the timestamps for the user's TZ!
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$events = calendar_get_events($display->tstart, $display->tend, $users, $groups, $courses);
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// Set event course class for course events
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if (!empty($events)) {
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foreach ($events as $eventid => $event) {
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if (!empty($event->modulename)) {
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$cm = get_coursemodule_from_instance($event->modulename, $event->instance);
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if (!\core_availability\info_module::is_user_visible($cm, 0, false)) {
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unset($events[$eventid]);
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}
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}
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}
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}
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// This is either a genius idea or an idiot idea: in order to not complicate things, we use this rule: if, after
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// possibly removing SITEID from $courses, there is only one course left, then clicking on a day in the month
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// will also set the $SESSION->cal_courses_shown variable to that one course. Otherwise, we 'd need to add extra
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// arguments to this function.
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$hrefparams = array();
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if(!empty($courses)) {
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$courses = array_diff($courses, array(SITEID));
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if(count($courses) == 1) {
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$hrefparams['course'] = reset($courses);
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}
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}
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// We want to have easy access by day, since the display is on a per-day basis.
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calendar_events_by_day($events, $m, $y, $eventsbyday, $durationbyday, $typesbyday, $courses);
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// Accessibility: added summary and <abbr> elements.
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$summary = get_string('calendarheading', 'calendar', userdate($display->tstart, get_string('strftimemonthyear')));
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$content .= '<table class="minicalendar calendartable" summary="'.$summary.'">'; // Begin table.
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if (($placement !== false) && ($courseid !== false)) {
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$content .= '<caption>'. calendar_top_controls($placement, array('id' => $courseid, 'time' => $time)) .'</caption>';
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}
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$content .= '<tr class="weekdays">'; // Header row: day names
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// Print out the names of the weekdays.
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for ($i = $display->minwday; $i <= $display->maxwday; ++$i) {
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$pos = $i % $numberofdaysinweek;
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$content .= '<th scope="col"><abbr title="'. $daynames[$pos]['fullname'] .'">'.
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$daynames[$pos]['shortname'] ."</abbr></th>\n";
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}
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$content .= '</tr><tr>'; // End of day names; prepare for day numbers
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// For the table display. $week is the row; $dayweek is the column.
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$dayweek = $startwday;
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// Paddding (the first week may have blank days in the beginning)
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for($i = $display->minwday; $i < $startwday; ++$i) {
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$content .= '<td class="dayblank"> </td>'."\n";
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}
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$weekend = CALENDAR_DEFAULT_WEEKEND;
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if (isset($CFG->calendar_weekend)) {
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$weekend = intval($CFG->calendar_weekend);
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}
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// Now display all the calendar
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$daytime = $display->tstart - DAYSECS;
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for($day = 1; $day <= $display->maxdays; ++$day, ++$dayweek) {
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$daytime += DAYSECS;
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if($dayweek > $display->maxwday) {
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// We need to change week (table row)
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$content .= '</tr><tr>';
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$dayweek = $display->minwday;
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}
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// Reset vars.
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if ($weekend & (1 << ($dayweek % $numberofdaysinweek))) {
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// Weekend. This is true no matter what the exact range is.
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$class = 'weekend day';
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} else {
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// Normal working day.
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$class = 'day';
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}
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// Special visual fx if an event is defined
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if(isset($eventsbyday[$day])) {
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$class .= ' hasevent';
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$hrefparams['view'] = 'day';
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$dayhref = calendar_get_link_href(new moodle_url(CALENDAR_URL . 'view.php', $hrefparams), 0, 0, 0, $daytime);
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$popupcontent = '';
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foreach($eventsbyday[$day] as $eventid) {
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if (!isset($events[$eventid])) {
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continue;
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}
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$event = new calendar_event($events[$eventid]);
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$popupalt = '';
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$component = 'moodle';
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if (!empty($event->modulename)) {
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$popupicon = 'icon';
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$popupalt = $event->modulename;
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$component = $event->modulename;
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} else if ($event->courseid == SITEID) { // Site event.
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$popupicon = 'i/siteevent';
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} else if ($event->courseid != 0 && $event->courseid != SITEID && $event->groupid == 0) { // Course event.
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$popupicon = 'i/courseevent';
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} else if ($event->groupid) { // Group event.
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$popupicon = 'i/groupevent';
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} else { // Must be a user event.
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$popupicon = 'i/userevent';
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}
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$dayhref->set_anchor('event_'.$event->id);
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$popupcontent .= html_writer::start_tag('div');
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$popupcontent .= $OUTPUT->pix_icon($popupicon, $popupalt, $component);
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$name = format_string($event->name, true);
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// Show ical source if needed.
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if (!empty($event->subscription) && $CFG->calendar_showicalsource) {
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$a = new stdClass();
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$a->name = $name;
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$a->source = $event->subscription->name;
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$name = get_string('namewithsource', 'calendar', $a);
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}
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$popupcontent .= html_writer::link($dayhref, $name);
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$popupcontent .= html_writer::end_tag('div');
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}
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//Accessibility: functionality moved to calendar_get_popup.
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if($display->thismonth && $day == $d) {
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$popupid = calendar_get_popup(true, $events[$eventid]->timestart, $popupcontent);
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} else {
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$popupid = calendar_get_popup(false, $events[$eventid]->timestart, $popupcontent);
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}
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// Class and cell content
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if(isset($typesbyday[$day]['startglobal'])) {
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$class .= ' calendar_event_global';
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} else if(isset($typesbyday[$day]['startcourse'])) {
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$class .= ' calendar_event_course';
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} else if(isset($typesbyday[$day]['startgroup'])) {
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$class .= ' calendar_event_group';
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} else if(isset($typesbyday[$day]['startuser'])) {
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$class .= ' calendar_event_user';
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}
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$cell = html_writer::link($dayhref, $day, array('id' => $popupid));
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} else {
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$cell = $day;
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}
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$durationclass = false;
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if (isset($typesbyday[$day]['durationglobal'])) {
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$durationclass = ' duration_global';
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} else if(isset($typesbyday[$day]['durationcourse'])) {
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$durationclass = ' duration_course';
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} else if(isset($typesbyday[$day]['durationgroup'])) {
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$durationclass = ' duration_group';
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} else if(isset($typesbyday[$day]['durationuser'])) {
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$durationclass = ' duration_user';
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}
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if ($durationclass) {
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$class .= ' duration '.$durationclass;
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}
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// If event has a class set then add it to the table day <td> tag
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// Note: only one colour for minicalendar
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if(isset($eventsbyday[$day])) {
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foreach($eventsbyday[$day] as $eventid) {
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if (!isset($events[$eventid])) {
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continue;
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}
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$event = $events[$eventid];
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if (!empty($event->class)) {
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$class .= ' '.$event->class;
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}
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break;
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}
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}
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// Special visual fx for today
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//Accessibility: hidden text for today, and popup.
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if($display->thismonth && $day == $d) {
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$class .= ' today';
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$today = get_string('today', 'calendar').' '.userdate(time(), get_string('strftimedayshort'));
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if(! isset($eventsbyday[$day])) {
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$class .= ' eventnone';
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$popupid = calendar_get_popup(true, false);
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$cell = html_writer::link('#', $day, array('id' => $popupid));
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}
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$cell = get_accesshide($today.' ').$cell;
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}
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// Just display it
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if(!empty($class)) {
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$class = ' class="'.$class.'"';
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}
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$content .= '<td'.$class.'>'.$cell."</td>\n";
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}
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// Paddding (the last week may have blank days at the end)
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for($i = $dayweek; $i <= $display->maxwday; ++$i) {
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$content .= '<td class="dayblank"> </td>';
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}
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$content .= '</tr>'; // Last row ends
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$content .= '</table>'; // Tabular display of days ends
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return $content;
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}
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/**
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* Gets the calendar popup
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*
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* It called at multiple points in from calendar_get_mini.
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* Copied and modified from calendar_get_mini.
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|
*
|
|
* @param bool $is_today false except when called on the current day.
|
|
* @param mixed $event_timestart $events[$eventid]->timestart, OR false if there are no events.
|
|
* @param string $popupcontent content for the popup window/layout.
|
|
* @return string eventid for the calendar_tooltip popup window/layout.
|
|
*/
|
|
function calendar_get_popup($is_today, $event_timestart, $popupcontent='') {
|
|
global $PAGE;
|
|
static $popupcount;
|
|
if ($popupcount === null) {
|
|
$popupcount = 1;
|
|
}
|
|
$popupcaption = '';
|
|
if($is_today) {
|
|
$popupcaption = get_string('today', 'calendar').' ';
|
|
}
|
|
if (false === $event_timestart) {
|
|
$popupcaption .= userdate(time(), get_string('strftimedayshort'));
|
|
$popupcontent = get_string('eventnone', 'calendar');
|
|
|
|
} else {
|
|
$popupcaption .= get_string('eventsfor', 'calendar', userdate($event_timestart, get_string('strftimedayshort')));
|
|
}
|
|
$id = 'calendar_tooltip_'.$popupcount;
|
|
$PAGE->requires->yui_module('moodle-calendar-eventmanager', 'M.core_calendar.add_event', array(array('eventId'=>$id,'title'=>$popupcaption, 'content'=>$popupcontent)));
|
|
|
|
$popupcount++;
|
|
return $id;
|
|
}
|
|
|
|
/**
|
|
* Gets the calendar upcoming event
|
|
*
|
|
* @param array $courses array of courses
|
|
* @param array|int|bool $groups array of groups, group id or boolean for all/no group events
|
|
* @param array|int|bool $users array of users, user id or boolean for all/no user events
|
|
* @param int $daysinfuture number of days in the future we 'll look
|
|
* @param int $maxevents maximum number of events
|
|
* @param int $fromtime start time
|
|
* @return array $output array of upcoming events
|
|
*/
|
|
function calendar_get_upcoming($courses, $groups, $users, $daysinfuture, $maxevents, $fromtime=0) {
|
|
global $CFG, $COURSE, $DB;
|
|
|
|
$display = new stdClass;
|
|
$display->range = $daysinfuture; // How many days in the future we 'll look
|
|
$display->maxevents = $maxevents;
|
|
|
|
$output = array();
|
|
|
|
// Prepare "course caching", since it may save us a lot of queries
|
|
$coursecache = array();
|
|
|
|
$processed = 0;
|
|
$now = time(); // We 'll need this later
|
|
$usermidnighttoday = usergetmidnight($now);
|
|
|
|
if ($fromtime) {
|
|
$display->tstart = $fromtime;
|
|
} else {
|
|
$display->tstart = $usermidnighttoday;
|
|
}
|
|
|
|
// This works correctly with respect to the user's DST, but it is accurate
|
|
// only because $fromtime is always the exact midnight of some day!
|
|
$display->tend = usergetmidnight($display->tstart + DAYSECS * $display->range + 3 * HOURSECS) - 1;
|
|
|
|
// Get the events matching our criteria
|
|
$events = calendar_get_events($display->tstart, $display->tend, $users, $groups, $courses);
|
|
|
|
// This is either a genius idea or an idiot idea: in order to not complicate things, we use this rule: if, after
|
|
// possibly removing SITEID from $courses, there is only one course left, then clicking on a day in the month
|
|
// will also set the $SESSION->cal_courses_shown variable to that one course. Otherwise, we 'd need to add extra
|
|
// arguments to this function.
|
|
|
|
$hrefparams = array();
|
|
if(!empty($courses)) {
|
|
$courses = array_diff($courses, array(SITEID));
|
|
if(count($courses) == 1) {
|
|
$hrefparams['course'] = reset($courses);
|
|
}
|
|
}
|
|
|
|
if ($events !== false) {
|
|
|
|
$modinfo = get_fast_modinfo($COURSE);
|
|
|
|
foreach($events as $event) {
|
|
|
|
|
|
if (!empty($event->modulename)) {
|
|
if ($event->courseid == $COURSE->id) {
|
|
if (isset($modinfo->instances[$event->modulename][$event->instance])) {
|
|
$cm = $modinfo->instances[$event->modulename][$event->instance];
|
|
if (!$cm->uservisible) {
|
|
continue;
|
|
}
|
|
}
|
|
} else {
|
|
if (!$cm = get_coursemodule_from_instance($event->modulename, $event->instance)) {
|
|
continue;
|
|
}
|
|
if (!\core_availability\info_module::is_user_visible($cm, 0, false)) {
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ($processed >= $display->maxevents) {
|
|
break;
|
|
}
|
|
|
|
$event->time = calendar_format_event_time($event, $now, $hrefparams);
|
|
$output[] = $event;
|
|
++$processed;
|
|
}
|
|
}
|
|
return $output;
|
|
}
|
|
|
|
|
|
/**
|
|
* Get a HTML link to a course.
|
|
*
|
|
* @param int $courseid the course id
|
|
* @return string a link to the course (as HTML); empty if the course id is invalid
|
|
*/
|
|
function calendar_get_courselink($courseid) {
|
|
|
|
if (!$courseid) {
|
|
return '';
|
|
}
|
|
|
|
calendar_get_course_cached($coursecache, $courseid);
|
|
$context = context_course::instance($courseid);
|
|
$fullname = format_string($coursecache[$courseid]->fullname, true, array('context' => $context));
|
|
$url = new moodle_url('/course/view.php', array('id' => $courseid));
|
|
$link = html_writer::link($url, $fullname);
|
|
|
|
return $link;
|
|
}
|
|
|
|
|
|
/**
|
|
* Add calendar event metadata
|
|
*
|
|
* @param stdClass $event event info
|
|
* @return stdClass $event metadata
|
|
*/
|
|
function calendar_add_event_metadata($event) {
|
|
global $CFG, $OUTPUT;
|
|
|
|
//Support multilang in event->name
|
|
$event->name = format_string($event->name,true);
|
|
|
|
if(!empty($event->modulename)) { // Activity event
|
|
// The module name is set. I will assume that it has to be displayed, and
|
|
// also that it is an automatically-generated event. And of course that the
|
|
// fields for get_coursemodule_from_instance are set correctly.
|
|
$module = calendar_get_module_cached($coursecache, $event->modulename, $event->instance);
|
|
|
|
if ($module === false) {
|
|
return;
|
|
}
|
|
|
|
$modulename = get_string('modulename', $event->modulename);
|
|
if (get_string_manager()->string_exists($event->eventtype, $event->modulename)) {
|
|
// will be used as alt text if the event icon
|
|
$eventtype = get_string($event->eventtype, $event->modulename);
|
|
} else {
|
|
$eventtype = '';
|
|
}
|
|
$icon = $OUTPUT->pix_url('icon', $event->modulename) . '';
|
|
|
|
$event->icon = '<img src="'.$icon.'" alt="'.$eventtype.'" title="'.$modulename.'" class="icon" />';
|
|
$event->referer = '<a href="'.$CFG->wwwroot.'/mod/'.$event->modulename.'/view.php?id='.$module->id.'">'.$event->name.'</a>';
|
|
$event->courselink = calendar_get_courselink($module->course);
|
|
$event->cmid = $module->id;
|
|
|
|
} else if($event->courseid == SITEID) { // Site event
|
|
$event->icon = '<img src="'.$OUTPUT->pix_url('i/siteevent') . '" alt="'.get_string('globalevent', 'calendar').'" class="icon" />';
|
|
$event->cssclass = 'calendar_event_global';
|
|
} else if($event->courseid != 0 && $event->courseid != SITEID && $event->groupid == 0) { // Course event
|
|
$event->icon = '<img src="'.$OUTPUT->pix_url('i/courseevent') . '" alt="'.get_string('courseevent', 'calendar').'" class="icon" />';
|
|
$event->courselink = calendar_get_courselink($event->courseid);
|
|
$event->cssclass = 'calendar_event_course';
|
|
} else if ($event->groupid) { // Group event
|
|
$event->icon = '<img src="'.$OUTPUT->pix_url('i/groupevent') . '" alt="'.get_string('groupevent', 'calendar').'" class="icon" />';
|
|
$event->courselink = calendar_get_courselink($event->courseid);
|
|
$event->cssclass = 'calendar_event_group';
|
|
} else if($event->userid) { // User event
|
|
$event->icon = '<img src="'.$OUTPUT->pix_url('i/userevent') . '" alt="'.get_string('userevent', 'calendar').'" class="icon" />';
|
|
$event->cssclass = 'calendar_event_user';
|
|
}
|
|
return $event;
|
|
}
|
|
|
|
/**
|
|
* Get calendar events
|
|
*
|
|
* @param int $tstart Start time of time range for events
|
|
* @param int $tend End time of time range for events
|
|
* @param array|int|boolean $users array of users, user id or boolean for all/no user events
|
|
* @param array|int|boolean $groups array of groups, group id or boolean for all/no group events
|
|
* @param array|int|boolean $courses array of courses, course id or boolean for all/no course events
|
|
* @param boolean $withduration whether only events starting within time range selected
|
|
* or events in progress/already started selected as well
|
|
* @param boolean $ignorehidden whether to select only visible events or all events
|
|
* @return array $events of selected events or an empty array if there aren't any (or there was an error)
|
|
*/
|
|
function calendar_get_events($tstart, $tend, $users, $groups, $courses, $withduration=true, $ignorehidden=true) {
|
|
global $DB;
|
|
|
|
$whereclause = '';
|
|
// Quick test
|
|
if(is_bool($users) && is_bool($groups) && is_bool($courses)) {
|
|
return array();
|
|
}
|
|
|
|
if(is_array($users) && !empty($users)) {
|
|
// Events from a number of users
|
|
if(!empty($whereclause)) $whereclause .= ' OR';
|
|
$whereclause .= ' (userid IN ('.implode(',', $users).') AND courseid = 0 AND groupid = 0)';
|
|
} else if(is_numeric($users)) {
|
|
// Events from one user
|
|
if(!empty($whereclause)) $whereclause .= ' OR';
|
|
$whereclause .= ' (userid = '.$users.' AND courseid = 0 AND groupid = 0)';
|
|
} else if($users === true) {
|
|
// Events from ALL users
|
|
if(!empty($whereclause)) $whereclause .= ' OR';
|
|
$whereclause .= ' (userid != 0 AND courseid = 0 AND groupid = 0)';
|
|
} else if($users === false) {
|
|
// No user at all, do nothing
|
|
}
|
|
|
|
if(is_array($groups) && !empty($groups)) {
|
|
// Events from a number of groups
|
|
if(!empty($whereclause)) $whereclause .= ' OR';
|
|
$whereclause .= ' groupid IN ('.implode(',', $groups).')';
|
|
} else if(is_numeric($groups)) {
|
|
// Events from one group
|
|
if(!empty($whereclause)) $whereclause .= ' OR ';
|
|
$whereclause .= ' groupid = '.$groups;
|
|
} else if($groups === true) {
|
|
// Events from ALL groups
|
|
if(!empty($whereclause)) $whereclause .= ' OR ';
|
|
$whereclause .= ' groupid != 0';
|
|
}
|
|
// boolean false (no groups at all): we don't need to do anything
|
|
|
|
if(is_array($courses) && !empty($courses)) {
|
|
if(!empty($whereclause)) {
|
|
$whereclause .= ' OR';
|
|
}
|
|
$whereclause .= ' (groupid = 0 AND courseid IN ('.implode(',', $courses).'))';
|
|
} else if(is_numeric($courses)) {
|
|
// One course
|
|
if(!empty($whereclause)) $whereclause .= ' OR';
|
|
$whereclause .= ' (groupid = 0 AND courseid = '.$courses.')';
|
|
} else if ($courses === true) {
|
|
// Events from ALL courses
|
|
if(!empty($whereclause)) $whereclause .= ' OR';
|
|
$whereclause .= ' (groupid = 0 AND courseid != 0)';
|
|
}
|
|
|
|
// Security check: if, by now, we have NOTHING in $whereclause, then it means
|
|
// that NO event-selecting clauses were defined. Thus, we won't be returning ANY
|
|
// events no matter what. Allowing the code to proceed might return a completely
|
|
// valid query with only time constraints, thus selecting ALL events in that time frame!
|
|
if(empty($whereclause)) {
|
|
return array();
|
|
}
|
|
|
|
if($withduration) {
|
|
$timeclause = '(timestart >= '.$tstart.' OR timestart + timeduration > '.$tstart.') AND timestart <= '.$tend;
|
|
}
|
|
else {
|
|
$timeclause = 'timestart >= '.$tstart.' AND timestart <= '.$tend;
|
|
}
|
|
if(!empty($whereclause)) {
|
|
// We have additional constraints
|
|
$whereclause = $timeclause.' AND ('.$whereclause.')';
|
|
}
|
|
else {
|
|
// Just basic time filtering
|
|
$whereclause = $timeclause;
|
|
}
|
|
|
|
if ($ignorehidden) {
|
|
$whereclause .= ' AND visible = 1';
|
|
}
|
|
|
|
$events = $DB->get_records_select('event', $whereclause, null, 'timestart');
|
|
if ($events === false) {
|
|
$events = array();
|
|
}
|
|
return $events;
|
|
}
|
|
|
|
/** Get calendar events by id
|
|
*
|
|
* @since Moodle 2.5
|
|
* @param array $eventids list of event ids
|
|
* @return array Array of event entries, empty array if nothing found
|
|
*/
|
|
|
|
function calendar_get_events_by_id($eventids) {
|
|
global $DB;
|
|
|
|
if (!is_array($eventids) || empty($eventids)) {
|
|
return array();
|
|
}
|
|
list($wheresql, $params) = $DB->get_in_or_equal($eventids);
|
|
$wheresql = "id $wheresql";
|
|
|
|
return $DB->get_records_select('event', $wheresql, $params);
|
|
}
|
|
|
|
/**
|
|
* Get control options for Calendar
|
|
*
|
|
* @param string $type of calendar
|
|
* @param array $data calendar information
|
|
* @return string $content return available control for the calender in html
|
|
*/
|
|
function calendar_top_controls($type, $data) {
|
|
global $PAGE;
|
|
|
|
// Get the calendar type we are using.
|
|
$calendartype = \core_calendar\type_factory::get_calendar_instance();
|
|
|
|
$content = '';
|
|
|
|
// Ensure course id passed if relevant.
|
|
$courseid = '';
|
|
if (!empty($data['id'])) {
|
|
$courseid = '&course='.$data['id'];
|
|
}
|
|
|
|
// If we are passing a month and year then we need to convert this to a timestamp to
|
|
// support multiple calendars. No where in core should these be passed, this logic
|
|
// here is for third party plugins that may use this function.
|
|
if (!empty($data['m']) && !empty($date['y'])) {
|
|
if (!isset($data['d'])) {
|
|
$data['d'] = 1;
|
|
}
|
|
if (!checkdate($data['m'], $data['d'], $data['y'])) {
|
|
$time = time();
|
|
} else {
|
|
$time = make_timestamp($data['y'], $data['m'], $data['d']);
|
|
}
|
|
} else if (!empty($data['time'])) {
|
|
$time = $data['time'];
|
|
} else {
|
|
$time = time();
|
|
}
|
|
|
|
// Get the date for the calendar type.
|
|
$date = $calendartype->timestamp_to_date_array($time);
|
|
|
|
$urlbase = $PAGE->url;
|
|
|
|
// We need to get the previous and next months in certain cases.
|
|
if ($type == 'frontpage' || $type == 'course' || $type == 'month') {
|
|
$prevmonth = calendar_sub_month($date['mon'], $date['year']);
|
|
$prevmonthtime = $calendartype->convert_to_gregorian($prevmonth[1], $prevmonth[0], 1);
|
|
$prevmonthtime = make_timestamp($prevmonthtime['year'], $prevmonthtime['month'], $prevmonthtime['day'],
|
|
$prevmonthtime['hour'], $prevmonthtime['minute']);
|
|
|
|
$nextmonth = calendar_add_month($date['mon'], $date['year']);
|
|
$nextmonthtime = $calendartype->convert_to_gregorian($nextmonth[1], $nextmonth[0], 1);
|
|
$nextmonthtime = make_timestamp($nextmonthtime['year'], $nextmonthtime['month'], $nextmonthtime['day'],
|
|
$nextmonthtime['hour'], $nextmonthtime['minute']);
|
|
}
|
|
|
|
switch ($type) {
|
|
case 'frontpage':
|
|
$prevlink = calendar_get_link_previous(get_string('monthprev', 'access'), $urlbase, false, false, false, true, $prevmonthtime);
|
|
$nextlink = calendar_get_link_next(get_string('monthnext', 'access'), $urlbase, false, false, false, true, $nextmonthtime);
|
|
$calendarlink = calendar_get_link_href(new moodle_url(CALENDAR_URL.'view.php', array('view' => 'month')), false, false, false, $time);
|
|
|
|
if (!empty($data['id'])) {
|
|
$calendarlink->param('course', $data['id']);
|
|
}
|
|
|
|
if (right_to_left()) {
|
|
$left = $nextlink;
|
|
$right = $prevlink;
|
|
} else {
|
|
$left = $prevlink;
|
|
$right = $nextlink;
|
|
}
|
|
|
|
$content .= html_writer::start_tag('div', array('class'=>'calendar-controls'));
|
|
$content .= $left.'<span class="hide"> | </span>';
|
|
$content .= html_writer::tag('span', html_writer::link($calendarlink, userdate($time, get_string('strftimemonthyear')), array('title'=>get_string('monththis','calendar'))), array('class'=>'current'));
|
|
$content .= '<span class="hide"> | </span>'. $right;
|
|
$content .= "<span class=\"clearer\"><!-- --></span>\n";
|
|
$content .= html_writer::end_tag('div');
|
|
|
|
break;
|
|
case 'course':
|
|
$prevlink = calendar_get_link_previous(get_string('monthprev', 'access'), $urlbase, false, false, false, true, $prevmonthtime);
|
|
$nextlink = calendar_get_link_next(get_string('monthnext', 'access'), $urlbase, false, false, false, true, $nextmonthtime);
|
|
$calendarlink = calendar_get_link_href(new moodle_url(CALENDAR_URL.'view.php', array('view' => 'month')), false, false, false, $time);
|
|
|
|
if (!empty($data['id'])) {
|
|
$calendarlink->param('course', $data['id']);
|
|
}
|
|
|
|
if (right_to_left()) {
|
|
$left = $nextlink;
|
|
$right = $prevlink;
|
|
} else {
|
|
$left = $prevlink;
|
|
$right = $nextlink;
|
|
}
|
|
|
|
$content .= html_writer::start_tag('div', array('class'=>'calendar-controls'));
|
|
$content .= $left.'<span class="hide"> | </span>';
|
|
$content .= html_writer::tag('span', html_writer::link($calendarlink, userdate($time, get_string('strftimemonthyear')), array('title'=>get_string('monththis','calendar'))), array('class'=>'current'));
|
|
$content .= '<span class="hide"> | </span>'. $right;
|
|
$content .= "<span class=\"clearer\"><!-- --></span>";
|
|
$content .= html_writer::end_tag('div');
|
|
break;
|
|
case 'upcoming':
|
|
$calendarlink = calendar_get_link_href(new moodle_url(CALENDAR_URL.'view.php', array('view' => 'upcoming')), false, false, false, $time);
|
|
if (!empty($data['id'])) {
|
|
$calendarlink->param('course', $data['id']);
|
|
}
|
|
$calendarlink = html_writer::link($calendarlink, userdate($time, get_string('strftimemonthyear')));
|
|
$content .= html_writer::tag('div', $calendarlink, array('class'=>'centered'));
|
|
break;
|
|
case 'display':
|
|
$calendarlink = calendar_get_link_href(new moodle_url(CALENDAR_URL.'view.php', array('view' => 'month')), false, false, false, $time);
|
|
if (!empty($data['id'])) {
|
|
$calendarlink->param('course', $data['id']);
|
|
}
|
|
$calendarlink = html_writer::link($calendarlink, userdate($time, get_string('strftimemonthyear')));
|
|
$content .= html_writer::tag('h3', $calendarlink);
|
|
break;
|
|
case 'month':
|
|
$prevlink = calendar_get_link_previous(userdate($prevmonthtime, get_string('strftimemonthyear')), 'view.php?view=month'.$courseid.'&', false, false, false, false, $prevmonthtime);
|
|
$nextlink = calendar_get_link_next(userdate($nextmonthtime, get_string('strftimemonthyear')), 'view.php?view=month'.$courseid.'&', false, false, false, false, $nextmonthtime);
|
|
|
|
if (right_to_left()) {
|
|
$left = $nextlink;
|
|
$right = $prevlink;
|
|
} else {
|
|
$left = $prevlink;
|
|
$right = $nextlink;
|
|
}
|
|
|
|
$content .= html_writer::start_tag('div', array('class'=>'calendar-controls'));
|
|
$content .= $left . '<span class="hide"> | </span><h1 class="current">'.userdate($time, get_string('strftimemonthyear'))."</h1>";
|
|
$content .= '<span class="hide"> | </span>' . $right;
|
|
$content .= '<span class="clearer"><!-- --></span>';
|
|
$content .= html_writer::end_tag('div')."\n";
|
|
break;
|
|
case 'day':
|
|
$days = calendar_get_days();
|
|
|
|
$prevtimestamp = $time - DAYSECS;
|
|
$nexttimestamp = $time + DAYSECS;
|
|
|
|
$prevdate = $calendartype->timestamp_to_date_array($prevtimestamp);
|
|
$nextdate = $calendartype->timestamp_to_date_array($nexttimestamp);
|
|
|
|
$prevname = $days[$prevdate['wday']]['fullname'];
|
|
$nextname = $days[$nextdate['wday']]['fullname'];
|
|
$prevlink = calendar_get_link_previous($prevname, 'view.php?view=day'.$courseid.'&', false, false, false, false, $prevtimestamp);
|
|
$nextlink = calendar_get_link_next($nextname, 'view.php?view=day'.$courseid.'&', false, false, false, false, $nexttimestamp);
|
|
|
|
if (right_to_left()) {
|
|
$left = $nextlink;
|
|
$right = $prevlink;
|
|
} else {
|
|
$left = $prevlink;
|
|
$right = $nextlink;
|
|
}
|
|
|
|
$content .= html_writer::start_tag('div', array('class'=>'calendar-controls'));
|
|
$content .= $left;
|
|
$content .= '<span class="hide"> | </span><span class="current">'.userdate($time, get_string('strftimedaydate')).'</span>';
|
|
$content .= '<span class="hide"> | </span>'. $right;
|
|
$content .= "<span class=\"clearer\"><!-- --></span>";
|
|
$content .= html_writer::end_tag('div')."\n";
|
|
|
|
break;
|
|
}
|
|
return $content;
|
|
}
|
|
|
|
/**
|
|
* Formats a filter control element.
|
|
*
|
|
* @param moodle_url $url of the filter
|
|
* @param int $type constant defining the type filter
|
|
* @return string html content of the element
|
|
*/
|
|
function calendar_filter_controls_element(moodle_url $url, $type) {
|
|
global $OUTPUT;
|
|
switch ($type) {
|
|
case CALENDAR_EVENT_GLOBAL:
|
|
$typeforhumans = 'global';
|
|
$class = 'calendar_event_global';
|
|
break;
|
|
case CALENDAR_EVENT_COURSE:
|
|
$typeforhumans = 'course';
|
|
$class = 'calendar_event_course';
|
|
break;
|
|
case CALENDAR_EVENT_GROUP:
|
|
$typeforhumans = 'groups';
|
|
$class = 'calendar_event_group';
|
|
break;
|
|
case CALENDAR_EVENT_USER:
|
|
$typeforhumans = 'user';
|
|
$class = 'calendar_event_user';
|
|
break;
|
|
}
|
|
if (calendar_show_event_type($type)) {
|
|
$icon = $OUTPUT->pix_icon('t/hide', get_string('hide'));
|
|
$str = get_string('hide'.$typeforhumans.'events', 'calendar');
|
|
} else {
|
|
$icon = $OUTPUT->pix_icon('t/show', get_string('show'));
|
|
$str = get_string('show'.$typeforhumans.'events', 'calendar');
|
|
}
|
|
$content = html_writer::start_tag('li', array('class' => 'calendar_event'));
|
|
$content .= html_writer::start_tag('a', array('href' => $url));
|
|
$content .= html_writer::tag('span', $icon, array('class' => $class));
|
|
$content .= html_writer::tag('span', $str, array('class' => 'eventname'));
|
|
$content .= html_writer::end_tag('a');
|
|
$content .= html_writer::end_tag('li');
|
|
return $content;
|
|
}
|
|
|
|
/**
|
|
* Get the controls filter for calendar.
|
|
*
|
|
* Filter is used to hide calendar info from the display page
|
|
*
|
|
* @param moodle_url $returnurl return-url for filter controls
|
|
* @return string $content return filter controls in html
|
|
*/
|
|
function calendar_filter_controls(moodle_url $returnurl) {
|
|
global $CFG, $USER, $OUTPUT;
|
|
|
|
$groupevents = true;
|
|
$id = optional_param( 'id',0,PARAM_INT );
|
|
$seturl = new moodle_url('/calendar/set.php', array('return' => base64_encode($returnurl->out(false)), 'sesskey'=>sesskey()));
|
|
$content = html_writer::start_tag('ul');
|
|
|
|
$seturl->param('var', 'showglobal');
|
|
$content .= calendar_filter_controls_element($seturl, CALENDAR_EVENT_GLOBAL);
|
|
|
|
$seturl->param('var', 'showcourses');
|
|
$content .= calendar_filter_controls_element($seturl, CALENDAR_EVENT_COURSE);
|
|
|
|
if (isloggedin() && !isguestuser()) {
|
|
if ($groupevents) {
|
|
// This course MIGHT have group events defined, so show the filter
|
|
$seturl->param('var', 'showgroups');
|
|
$content .= calendar_filter_controls_element($seturl, CALENDAR_EVENT_GROUP);
|
|
} else {
|
|
// This course CANNOT have group events, so lose the filter
|
|
}
|
|
$seturl->param('var', 'showuser');
|
|
$content .= calendar_filter_controls_element($seturl, CALENDAR_EVENT_USER);
|
|
}
|
|
$content .= html_writer::end_tag('ul');
|
|
|
|
return $content;
|
|
}
|
|
|
|
/**
|
|
* Return the representation day
|
|
*
|
|
* @param int $tstamp Timestamp in GMT
|
|
* @param int $now current Unix timestamp
|
|
* @param bool $usecommonwords
|
|
* @return string the formatted date/time
|
|
*/
|
|
function calendar_day_representation($tstamp, $now = false, $usecommonwords = true) {
|
|
|
|
static $shortformat;
|
|
if(empty($shortformat)) {
|
|
$shortformat = get_string('strftimedayshort');
|
|
}
|
|
|
|
if($now === false) {
|
|
$now = time();
|
|
}
|
|
|
|
// To have it in one place, if a change is needed
|
|
$formal = userdate($tstamp, $shortformat);
|
|
|
|
$datestamp = usergetdate($tstamp);
|
|
$datenow = usergetdate($now);
|
|
|
|
if($usecommonwords == false) {
|
|
// We don't want words, just a date
|
|
return $formal;
|
|
}
|
|
else if($datestamp['year'] == $datenow['year'] && $datestamp['yday'] == $datenow['yday']) {
|
|
// Today
|
|
return get_string('today', 'calendar');
|
|
}
|
|
else if(
|
|
($datestamp['year'] == $datenow['year'] && $datestamp['yday'] == $datenow['yday'] - 1 ) ||
|
|
($datestamp['year'] == $datenow['year'] - 1 && $datestamp['mday'] == 31 && $datestamp['mon'] == 12 && $datenow['yday'] == 1)
|
|
) {
|
|
// Yesterday
|
|
return get_string('yesterday', 'calendar');
|
|
}
|
|
else if(
|
|
($datestamp['year'] == $datenow['year'] && $datestamp['yday'] == $datenow['yday'] + 1 ) ||
|
|
($datestamp['year'] == $datenow['year'] + 1 && $datenow['mday'] == 31 && $datenow['mon'] == 12 && $datestamp['yday'] == 1)
|
|
) {
|
|
// Tomorrow
|
|
return get_string('tomorrow', 'calendar');
|
|
}
|
|
else {
|
|
return $formal;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* return the formatted representation time
|
|
*
|
|
* @param int $time the timestamp in UTC, as obtained from the database
|
|
* @return string the formatted date/time
|
|
*/
|
|
function calendar_time_representation($time) {
|
|
static $langtimeformat = NULL;
|
|
if($langtimeformat === NULL) {
|
|
$langtimeformat = get_string('strftimetime');
|
|
}
|
|
$timeformat = get_user_preferences('calendar_timeformat');
|
|
if(empty($timeformat)){
|
|
$timeformat = get_config(NULL,'calendar_site_timeformat');
|
|
}
|
|
// The ? is needed because the preference might be present, but empty
|
|
return userdate($time, empty($timeformat) ? $langtimeformat : $timeformat);
|
|
}
|
|
|
|
/**
|
|
* Adds day, month, year arguments to a URL and returns a moodle_url object.
|
|
*
|
|
* @param string|moodle_url $linkbase
|
|
* @param int $d The number of the day.
|
|
* @param int $m The number of the month.
|
|
* @param int $y The number of the year.
|
|
* @param int $time the unixtime, used for multiple calendar support. The values $d,
|
|
* $m and $y are kept for backwards compatibility.
|
|
* @return moodle_url|null $linkbase
|
|
*/
|
|
function calendar_get_link_href($linkbase, $d, $m, $y, $time = 0) {
|
|
if (empty($linkbase)) {
|
|
return '';
|
|
}
|
|
if (!($linkbase instanceof moodle_url)) {
|
|
$linkbase = new moodle_url($linkbase);
|
|
}
|
|
|
|
// If a day, month and year were passed then convert it to a timestamp. If these were passed
|
|
// then we can assume the day, month and year are passed as Gregorian, as no where in core
|
|
// should we be passing these values rather than the time.
|
|
if (!empty($d) && !empty($m) && !empty($y)) {
|
|
if (checkdate($m, $d, $y)) {
|
|
$time = make_timestamp($y, $m, $d);
|
|
} else {
|
|
$time = time();
|
|
}
|
|
} else if (empty($time)) {
|
|
$time = time();
|
|
}
|
|
|
|
$linkbase->param('time', $time);
|
|
|
|
return $linkbase;
|
|
}
|
|
|
|
/**
|
|
* Build and return a previous month HTML link, with an arrow.
|
|
*
|
|
* @param string $text The text label.
|
|
* @param string|moodle_url $linkbase The URL stub.
|
|
* @param int $d The number of the date.
|
|
* @param int $m The number of the month.
|
|
* @param int $y year The number of the year.
|
|
* @param bool $accesshide Default visible, or hide from all except screenreaders.
|
|
* @param int $time the unixtime, used for multiple calendar support. The values $d,
|
|
* $m and $y are kept for backwards compatibility.
|
|
* @return string HTML string.
|
|
*/
|
|
function calendar_get_link_previous($text, $linkbase, $d, $m, $y, $accesshide = false, $time = 0) {
|
|
$href = calendar_get_link_href(new moodle_url($linkbase), $d, $m, $y, $time);
|
|
if (empty($href)) {
|
|
return $text;
|
|
}
|
|
return link_arrow_left($text, (string)$href, $accesshide, 'previous');
|
|
}
|
|
|
|
/**
|
|
* Build and return a next month HTML link, with an arrow.
|
|
*
|
|
* @param string $text The text label.
|
|
* @param string|moodle_url $linkbase The URL stub.
|
|
* @param int $d the number of the Day
|
|
* @param int $m The number of the month.
|
|
* @param int $y The number of the year.
|
|
* @param bool $accesshide Default visible, or hide from all except screenreaders.
|
|
* @param int $time the unixtime, used for multiple calendar support. The values $d,
|
|
* $m and $y are kept for backwards compatibility.
|
|
* @return string HTML string.
|
|
*/
|
|
function calendar_get_link_next($text, $linkbase, $d, $m, $y, $accesshide = false, $time = 0) {
|
|
$href = calendar_get_link_href(new moodle_url($linkbase), $d, $m, $y, $time);
|
|
if (empty($href)) {
|
|
return $text;
|
|
}
|
|
return link_arrow_right($text, (string)$href, $accesshide, 'next');
|
|
}
|
|
|
|
/**
|
|
* Return the name of the weekday
|
|
*
|
|
* @param string $englishname
|
|
* @return string of the weekeday
|
|
*/
|
|
function calendar_wday_name($englishname) {
|
|
return get_string(strtolower($englishname), 'calendar');
|
|
}
|
|
|
|
/**
|
|
* Return the number of days in month
|
|
*
|
|
* @param int $month the number of the month.
|
|
* @param int $year the number of the year
|
|
* @return int
|
|
*/
|
|
function calendar_days_in_month($month, $year) {
|
|
$calendartype = \core_calendar\type_factory::get_calendar_instance();
|
|
return $calendartype->get_num_days_in_month($year, $month);
|
|
}
|
|
|
|
/**
|
|
* Get the upcoming event block
|
|
*
|
|
* @param array $events list of events
|
|
* @param moodle_url|string $linkhref link to event referer
|
|
* @param boolean $showcourselink whether links to courses should be shown
|
|
* @return string|null $content html block content
|
|
*/
|
|
function calendar_get_block_upcoming($events, $linkhref = NULL, $showcourselink = false) {
|
|
$content = '';
|
|
$lines = count($events);
|
|
if (!$lines) {
|
|
return $content;
|
|
}
|
|
|
|
for ($i = 0; $i < $lines; ++$i) {
|
|
if (!isset($events[$i]->time)) { // Just for robustness
|
|
continue;
|
|
}
|
|
$events[$i] = calendar_add_event_metadata($events[$i]);
|
|
$content .= '<div class="event"><span class="icon c0">'.$events[$i]->icon.'</span>';
|
|
if (!empty($events[$i]->referer)) {
|
|
// That's an activity event, so let's provide the hyperlink
|
|
$content .= $events[$i]->referer;
|
|
} else {
|
|
if(!empty($linkhref)) {
|
|
$href = calendar_get_link_href(new moodle_url(CALENDAR_URL . $linkhref), 0, 0, 0, $events[$i]->timestart);
|
|
$href->set_anchor('event_'.$events[$i]->id);
|
|
$content .= html_writer::link($href, $events[$i]->name);
|
|
}
|
|
else {
|
|
$content .= $events[$i]->name;
|
|
}
|
|
}
|
|
$events[$i]->time = str_replace('»', '<br />»', $events[$i]->time);
|
|
if ($showcourselink && !empty($events[$i]->courselink)) {
|
|
$content .= html_writer::div($events[$i]->courselink, 'course');
|
|
}
|
|
$content .= '<div class="date">'.$events[$i]->time.'</div></div>';
|
|
if ($i < $lines - 1) $content .= '<hr />';
|
|
}
|
|
|
|
return $content;
|
|
}
|
|
|
|
/**
|
|
* Get the next following month
|
|
*
|
|
* @param int $month the number of the month.
|
|
* @param int $year the number of the year.
|
|
* @return array the following month
|
|
*/
|
|
function calendar_add_month($month, $year) {
|
|
// Get the calendar type we are using.
|
|
$calendartype = \core_calendar\type_factory::get_calendar_instance();
|
|
return $calendartype->get_next_month($year, $month);
|
|
}
|
|
|
|
/**
|
|
* Get the previous month.
|
|
*
|
|
* @param int $month the number of the month.
|
|
* @param int $year the number of the year.
|
|
* @return array previous month
|
|
*/
|
|
function calendar_sub_month($month, $year) {
|
|
// Get the calendar type we are using.
|
|
$calendartype = \core_calendar\type_factory::get_calendar_instance();
|
|
return $calendartype->get_prev_month($year, $month);
|
|
}
|
|
|
|
/**
|
|
* Get per-day basis events
|
|
*
|
|
* @param array $events list of events
|
|
* @param int $month the number of the month
|
|
* @param int $year the number of the year
|
|
* @param array $eventsbyday event on specific day
|
|
* @param array $durationbyday duration of the event in days
|
|
* @param array $typesbyday event type (eg: global, course, user, or group)
|
|
* @param array $courses list of courses
|
|
* @return void
|
|
*/
|
|
function calendar_events_by_day($events, $month, $year, &$eventsbyday, &$durationbyday, &$typesbyday, &$courses) {
|
|
// Get the calendar type we are using.
|
|
$calendartype = \core_calendar\type_factory::get_calendar_instance();
|
|
|
|
$eventsbyday = array();
|
|
$typesbyday = array();
|
|
$durationbyday = array();
|
|
|
|
if($events === false) {
|
|
return;
|
|
}
|
|
|
|
foreach ($events as $event) {
|
|
$startdate = $calendartype->timestamp_to_date_array($event->timestart);
|
|
// Set end date = start date if no duration
|
|
if ($event->timeduration) {
|
|
$enddate = $calendartype->timestamp_to_date_array($event->timestart + $event->timeduration - 1);
|
|
} else {
|
|
$enddate = $startdate;
|
|
}
|
|
|
|
// Simple arithmetic: $year * 13 + $month is a distinct integer for each distinct ($year, $month) pair
|
|
if(!($startdate['year'] * 13 + $startdate['mon'] <= $year * 13 + $month) && ($enddate['year'] * 13 + $enddate['mon'] >= $year * 13 + $month)) {
|
|
// Out of bounds
|
|
continue;
|
|
}
|
|
|
|
$eventdaystart = intval($startdate['mday']);
|
|
|
|
if($startdate['mon'] == $month && $startdate['year'] == $year) {
|
|
// Give the event to its day
|
|
$eventsbyday[$eventdaystart][] = $event->id;
|
|
|
|
// Mark the day as having such an event
|
|
if($event->courseid == SITEID && $event->groupid == 0) {
|
|
$typesbyday[$eventdaystart]['startglobal'] = true;
|
|
// Set event class for global event
|
|
$events[$event->id]->class = 'calendar_event_global';
|
|
}
|
|
else if($event->courseid != 0 && $event->courseid != SITEID && $event->groupid == 0) {
|
|
$typesbyday[$eventdaystart]['startcourse'] = true;
|
|
// Set event class for course event
|
|
$events[$event->id]->class = 'calendar_event_course';
|
|
}
|
|
else if($event->groupid) {
|
|
$typesbyday[$eventdaystart]['startgroup'] = true;
|
|
// Set event class for group event
|
|
$events[$event->id]->class = 'calendar_event_group';
|
|
}
|
|
else if($event->userid) {
|
|
$typesbyday[$eventdaystart]['startuser'] = true;
|
|
// Set event class for user event
|
|
$events[$event->id]->class = 'calendar_event_user';
|
|
}
|
|
}
|
|
|
|
if($event->timeduration == 0) {
|
|
// Proceed with the next
|
|
continue;
|
|
}
|
|
|
|
// The event starts on $month $year or before. So...
|
|
$lowerbound = $startdate['mon'] == $month && $startdate['year'] == $year ? intval($startdate['mday']) : 0;
|
|
|
|
// Also, it ends on $month $year or later...
|
|
$upperbound = $enddate['mon'] == $month && $enddate['year'] == $year ? intval($enddate['mday']) : calendar_days_in_month($month, $year);
|
|
|
|
// Mark all days between $lowerbound and $upperbound (inclusive) as duration
|
|
for($i = $lowerbound + 1; $i <= $upperbound; ++$i) {
|
|
$durationbyday[$i][] = $event->id;
|
|
if($event->courseid == SITEID && $event->groupid == 0) {
|
|
$typesbyday[$i]['durationglobal'] = true;
|
|
}
|
|
else if($event->courseid != 0 && $event->courseid != SITEID && $event->groupid == 0) {
|
|
$typesbyday[$i]['durationcourse'] = true;
|
|
}
|
|
else if($event->groupid) {
|
|
$typesbyday[$i]['durationgroup'] = true;
|
|
}
|
|
else if($event->userid) {
|
|
$typesbyday[$i]['durationuser'] = true;
|
|
}
|
|
}
|
|
|
|
}
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* Get current module cache
|
|
*
|
|
* @param array $coursecache list of course cache
|
|
* @param string $modulename name of the module
|
|
* @param int $instance module instance number
|
|
* @return stdClass|bool $module information
|
|
*/
|
|
function calendar_get_module_cached(&$coursecache, $modulename, $instance) {
|
|
$module = get_coursemodule_from_instance($modulename, $instance);
|
|
|
|
if($module === false) return false;
|
|
if(!calendar_get_course_cached($coursecache, $module->course)) {
|
|
return false;
|
|
}
|
|
return $module;
|
|
}
|
|
|
|
/**
|
|
* Get current course cache
|
|
*
|
|
* @param array $coursecache list of course cache
|
|
* @param int $courseid id of the course
|
|
* @return stdClass $coursecache[$courseid] return the specific course cache
|
|
*/
|
|
function calendar_get_course_cached(&$coursecache, $courseid) {
|
|
if (!isset($coursecache[$courseid])) {
|
|
$coursecache[$courseid] = get_course($courseid);
|
|
}
|
|
return $coursecache[$courseid];
|
|
}
|
|
|
|
/**
|
|
* Returns the courses to load events for, the
|
|
*
|
|
* @param array $courseeventsfrom An array of courses to load calendar events for
|
|
* @param bool $ignorefilters specify the use of filters, false is set as default
|
|
* @return array An array of courses, groups, and user to load calendar events for based upon filters
|
|
*/
|
|
function calendar_set_filters(array $courseeventsfrom, $ignorefilters = false) {
|
|
global $USER, $CFG, $DB;
|
|
|
|
// For backwards compatability we have to check whether the courses array contains
|
|
// just id's in which case we need to load course objects.
|
|
$coursestoload = array();
|
|
foreach ($courseeventsfrom as $id => $something) {
|
|
if (!is_object($something)) {
|
|
$coursestoload[] = $id;
|
|
unset($courseeventsfrom[$id]);
|
|
}
|
|
}
|
|
if (!empty($coursestoload)) {
|
|
// TODO remove this in 2.2
|
|
debugging('calendar_set_filters now preferes an array of course objects with preloaded contexts', DEBUG_DEVELOPER);
|
|
$courseeventsfrom = array_merge($courseeventsfrom, $DB->get_records_list('course', 'id', $coursestoload));
|
|
}
|
|
|
|
$courses = array();
|
|
$user = false;
|
|
$group = false;
|
|
|
|
// capabilities that allow seeing group events from all groups
|
|
// TODO: rewrite so that moodle/calendar:manageentries is not necessary here
|
|
$allgroupscaps = array('moodle/site:accessallgroups', 'moodle/calendar:manageentries');
|
|
|
|
$isloggedin = isloggedin();
|
|
|
|
if ($ignorefilters || calendar_show_event_type(CALENDAR_EVENT_COURSE)) {
|
|
$courses = array_keys($courseeventsfrom);
|
|
}
|
|
if ($ignorefilters || calendar_show_event_type(CALENDAR_EVENT_GLOBAL)) {
|
|
$courses[] = SITEID;
|
|
}
|
|
$courses = array_unique($courses);
|
|
sort($courses);
|
|
|
|
if (!empty($courses) && in_array(SITEID, $courses)) {
|
|
// Sort courses for consistent colour highlighting
|
|
// Effectively ignoring SITEID as setting as last course id
|
|
$key = array_search(SITEID, $courses);
|
|
unset($courses[$key]);
|
|
$courses[] = SITEID;
|
|
}
|
|
|
|
if ($ignorefilters || ($isloggedin && calendar_show_event_type(CALENDAR_EVENT_USER))) {
|
|
$user = $USER->id;
|
|
}
|
|
|
|
if (!empty($courseeventsfrom) && (calendar_show_event_type(CALENDAR_EVENT_GROUP) || $ignorefilters)) {
|
|
|
|
if (count($courseeventsfrom)==1) {
|
|
$course = reset($courseeventsfrom);
|
|
if (has_any_capability($allgroupscaps, context_course::instance($course->id))) {
|
|
$coursegroups = groups_get_all_groups($course->id, 0, 0, 'g.id');
|
|
$group = array_keys($coursegroups);
|
|
}
|
|
}
|
|
if ($group === false) {
|
|
if (!empty($CFG->calendar_adminseesall) && has_any_capability($allgroupscaps, context_system::instance())) {
|
|
$group = true;
|
|
} else if ($isloggedin) {
|
|
$groupids = array();
|
|
|
|
// We already have the courses to examine in $courses
|
|
// For each course...
|
|
foreach ($courseeventsfrom as $courseid => $course) {
|
|
// If the user is an editing teacher in there,
|
|
if (!empty($USER->groupmember[$course->id])) {
|
|
// We've already cached the users groups for this course so we can just use that
|
|
$groupids = array_merge($groupids, $USER->groupmember[$course->id]);
|
|
} else if ($course->groupmode != NOGROUPS || !$course->groupmodeforce) {
|
|
// If this course has groups, show events from all of those related to the current user
|
|
$coursegroups = groups_get_user_groups($course->id, $USER->id);
|
|
$groupids = array_merge($groupids, $coursegroups['0']);
|
|
}
|
|
}
|
|
if (!empty($groupids)) {
|
|
$group = $groupids;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (empty($courses)) {
|
|
$courses = false;
|
|
}
|
|
|
|
return array($courses, $group, $user);
|
|
}
|
|
|
|
/**
|
|
* Return the capability for editing calendar event
|
|
*
|
|
* @param calendar_event $event event object
|
|
* @return bool capability to edit event
|
|
*/
|
|
function calendar_edit_event_allowed($event) {
|
|
global $USER, $DB;
|
|
|
|
// Must be logged in
|
|
if (!isloggedin()) {
|
|
return false;
|
|
}
|
|
|
|
// can not be using guest account
|
|
if (isguestuser()) {
|
|
return false;
|
|
}
|
|
|
|
// You cannot edit calendar subscription events presently.
|
|
if (!empty($event->subscriptionid)) {
|
|
return false;
|
|
}
|
|
|
|
$sitecontext = context_system::instance();
|
|
// if user has manageentries at site level, return true
|
|
if (has_capability('moodle/calendar:manageentries', $sitecontext)) {
|
|
return true;
|
|
}
|
|
|
|
// if groupid is set, it's definitely a group event
|
|
if (!empty($event->groupid)) {
|
|
// Allow users to add/edit group events if:
|
|
// 1) They have manageentries (= entries for whole course)
|
|
// 2) They have managegroupentries AND are in the group
|
|
$group = $DB->get_record('groups', array('id'=>$event->groupid));
|
|
return $group && (
|
|
has_capability('moodle/calendar:manageentries', $event->context) ||
|
|
(has_capability('moodle/calendar:managegroupentries', $event->context)
|
|
&& groups_is_member($event->groupid)));
|
|
} else if (!empty($event->courseid)) {
|
|
// if groupid is not set, but course is set,
|
|
// it's definiely a course event
|
|
return has_capability('moodle/calendar:manageentries', $event->context);
|
|
} else if (!empty($event->userid) && $event->userid == $USER->id) {
|
|
// if course is not set, but userid id set, it's a user event
|
|
return (has_capability('moodle/calendar:manageownentries', $event->context));
|
|
} else if (!empty($event->userid)) {
|
|
return (has_capability('moodle/calendar:manageentries', $event->context));
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Returns the default courses to display on the calendar when there isn't a specific
|
|
* course to display.
|
|
*
|
|
* @return array $courses Array of courses to display
|
|
*/
|
|
function calendar_get_default_courses() {
|
|
global $CFG, $DB;
|
|
|
|
if (!isloggedin()) {
|
|
return array();
|
|
}
|
|
|
|
$courses = array();
|
|
if (!empty($CFG->calendar_adminseesall) && has_capability('moodle/calendar:manageentries', context_system::instance())) {
|
|
$select = ', ' . context_helper::get_preload_record_columns_sql('ctx');
|
|
$join = "LEFT JOIN {context} ctx ON (ctx.instanceid = c.id AND ctx.contextlevel = :contextlevel)";
|
|
$sql = "SELECT c.* $select
|
|
FROM {course} c
|
|
$join
|
|
WHERE EXISTS (SELECT 1 FROM {event} e WHERE e.courseid = c.id)
|
|
";
|
|
$courses = $DB->get_records_sql($sql, array('contextlevel' => CONTEXT_COURSE), 0, 20);
|
|
foreach ($courses as $course) {
|
|
context_helper::preload_from_record($course);
|
|
}
|
|
return $courses;
|
|
}
|
|
|
|
$courses = enrol_get_my_courses();
|
|
|
|
return $courses;
|
|
}
|
|
|
|
/**
|
|
* Display calendar preference button
|
|
*
|
|
* @param stdClass $course course object
|
|
* @return string return preference button in html
|
|
*/
|
|
function calendar_preferences_button(stdClass $course) {
|
|
global $OUTPUT;
|
|
|
|
// Guests have no preferences
|
|
if (!isloggedin() || isguestuser()) {
|
|
return '';
|
|
}
|
|
|
|
return $OUTPUT->single_button(new moodle_url('/calendar/preferences.php', array('course' => $course->id)), get_string("preferences", "calendar"));
|
|
}
|
|
|
|
/**
|
|
* Get event format time
|
|
*
|
|
* @param calendar_event $event event object
|
|
* @param int $now current time in gmt
|
|
* @param array $linkparams list of params for event link
|
|
* @param bool $usecommonwords the words as formatted date/time.
|
|
* @param int $showtime determine the show time GMT timestamp
|
|
* @return string $eventtime link/string for event time
|
|
*/
|
|
function calendar_format_event_time($event, $now, $linkparams = null, $usecommonwords = true, $showtime = 0) {
|
|
$starttime = $event->timestart;
|
|
$endtime = $event->timestart + $event->timeduration;
|
|
|
|
if (empty($linkparams) || !is_array($linkparams)) {
|
|
$linkparams = array();
|
|
}
|
|
|
|
$linkparams['view'] = 'day';
|
|
|
|
// OK, now to get a meaningful display...
|
|
// Check if there is a duration for this event.
|
|
if ($event->timeduration) {
|
|
// Get the midnight of the day the event will start.
|
|
$usermidnightstart = usergetmidnight($starttime);
|
|
// Get the midnight of the day the event will end.
|
|
$usermidnightend = usergetmidnight($endtime);
|
|
// Check if we will still be on the same day.
|
|
if ($usermidnightstart == $usermidnightend) {
|
|
// Check if we are running all day.
|
|
if ($event->timeduration == DAYSECS) {
|
|
$time = get_string('allday', 'calendar');
|
|
} else { // Specify the time we will be running this from.
|
|
$datestart = calendar_time_representation($starttime);
|
|
$dateend = calendar_time_representation($endtime);
|
|
$time = $datestart . ' <strong>»</strong> ' . $dateend;
|
|
}
|
|
|
|
// Set printable representation.
|
|
if (!$showtime) {
|
|
$day = calendar_day_representation($event->timestart, $now, $usecommonwords);
|
|
$url = calendar_get_link_href(new moodle_url(CALENDAR_URL . 'view.php', $linkparams), 0, 0, 0, $endtime);
|
|
$eventtime = html_writer::link($url, $day) . ', ' . $time;
|
|
} else {
|
|
$eventtime = $time;
|
|
}
|
|
} else { // It must spans two or more days.
|
|
$daystart = calendar_day_representation($event->timestart, $now, $usecommonwords) . ', ';
|
|
if ($showtime == $usermidnightstart) {
|
|
$daystart = '';
|
|
}
|
|
$timestart = calendar_time_representation($event->timestart);
|
|
$dayend = calendar_day_representation($event->timestart + $event->timeduration, $now, $usecommonwords) . ', ';
|
|
if ($showtime == $usermidnightend) {
|
|
$dayend = '';
|
|
}
|
|
$timeend = calendar_time_representation($event->timestart + $event->timeduration);
|
|
|
|
// Set printable representation.
|
|
if ($now >= $usermidnightstart && $now < ($usermidnightstart + DAYSECS)) {
|
|
$url = calendar_get_link_href(new moodle_url(CALENDAR_URL . 'view.php', $linkparams), 0, 0, 0, $endtime);
|
|
$eventtime = $timestart . ' <strong>»</strong> ' . html_writer::link($url, $dayend) . $timeend;
|
|
} else {
|
|
$url = calendar_get_link_href(new moodle_url(CALENDAR_URL . 'view.php', $linkparams), 0, 0, 0, $endtime);
|
|
$eventtime = html_writer::link($url, $daystart) . $timestart . ' <strong>»</strong> ';
|
|
|
|
$url = calendar_get_link_href(new moodle_url(CALENDAR_URL . 'view.php', $linkparams), 0, 0, 0, $starttime);
|
|
$eventtime .= html_writer::link($url, $dayend) . $timeend;
|
|
}
|
|
}
|
|
} else { // There is no time duration.
|
|
$time = calendar_time_representation($event->timestart);
|
|
// Set printable representation.
|
|
if (!$showtime) {
|
|
$day = calendar_day_representation($event->timestart, $now, $usecommonwords);
|
|
$url = calendar_get_link_href(new moodle_url(CALENDAR_URL . 'view.php', $linkparams), 0, 0, 0, $starttime);
|
|
$eventtime = html_writer::link($url, $day) . ', ' . trim($time);
|
|
} else {
|
|
$eventtime = $time;
|
|
}
|
|
}
|
|
|
|
// Check if It has expired.
|
|
if ($event->timestart + $event->timeduration < $now) {
|
|
$eventtime = '<span class="dimmed_text">' . str_replace(' href=', ' class="dimmed" href=', $eventtime) . '</span>';
|
|
}
|
|
|
|
return $eventtime;
|
|
}
|
|
|
|
/**
|
|
* Display month selector options
|
|
*
|
|
* @param string $name for the select element
|
|
* @param string|array $selected options for select elements
|
|
*/
|
|
function calendar_print_month_selector($name, $selected) {
|
|
$months = array();
|
|
for ($i=1; $i<=12; $i++) {
|
|
$months[$i] = userdate(gmmktime(12, 0, 0, $i, 15, 2000), '%B');
|
|
}
|
|
echo html_writer::label(get_string('months'), 'menu'. $name, false, array('class' => 'accesshide'));
|
|
echo html_writer::select($months, $name, $selected, false);
|
|
}
|
|
|
|
/**
|
|
* Checks to see if the requested type of event should be shown for the given user.
|
|
*
|
|
* @param CALENDAR_EVENT_GLOBAL|CALENDAR_EVENT_COURSE|CALENDAR_EVENT_GROUP|CALENDAR_EVENT_USER $type
|
|
* The type to check the display for (default is to display all)
|
|
* @param stdClass|int|null $user The user to check for - by default the current user
|
|
* @return bool True if the tyep should be displayed false otherwise
|
|
*/
|
|
function calendar_show_event_type($type, $user = null) {
|
|
$default = CALENDAR_EVENT_GLOBAL + CALENDAR_EVENT_COURSE + CALENDAR_EVENT_GROUP + CALENDAR_EVENT_USER;
|
|
if (get_user_preferences('calendar_persistflt', 0, $user) === 0) {
|
|
global $SESSION;
|
|
if (!isset($SESSION->calendarshoweventtype)) {
|
|
$SESSION->calendarshoweventtype = $default;
|
|
}
|
|
return $SESSION->calendarshoweventtype & $type;
|
|
} else {
|
|
return get_user_preferences('calendar_savedflt', $default, $user) & $type;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Sets the display of the event type given $display.
|
|
*
|
|
* If $display = true the event type will be shown.
|
|
* If $display = false the event type will NOT be shown.
|
|
* If $display = null the current value will be toggled and saved.
|
|
*
|
|
* @param CALENDAR_EVENT_GLOBAL|CALENDAR_EVENT_COURSE|CALENDAR_EVENT_GROUP|CALENDAR_EVENT_USER $type object of CALENDAR_EVENT_XXX
|
|
* @param bool $display option to display event type
|
|
* @param stdClass|int $user moodle user object or id, null means current user
|
|
*/
|
|
function calendar_set_event_type_display($type, $display = null, $user = null) {
|
|
$persist = get_user_preferences('calendar_persistflt', 0, $user);
|
|
$default = CALENDAR_EVENT_GLOBAL + CALENDAR_EVENT_COURSE + CALENDAR_EVENT_GROUP + CALENDAR_EVENT_USER;
|
|
if ($persist === 0) {
|
|
global $SESSION;
|
|
if (!isset($SESSION->calendarshoweventtype)) {
|
|
$SESSION->calendarshoweventtype = $default;
|
|
}
|
|
$preference = $SESSION->calendarshoweventtype;
|
|
} else {
|
|
$preference = get_user_preferences('calendar_savedflt', $default, $user);
|
|
}
|
|
$current = $preference & $type;
|
|
if ($display === null) {
|
|
$display = !$current;
|
|
}
|
|
if ($display && !$current) {
|
|
$preference += $type;
|
|
} else if (!$display && $current) {
|
|
$preference -= $type;
|
|
}
|
|
if ($persist === 0) {
|
|
$SESSION->calendarshoweventtype = $preference;
|
|
} else {
|
|
if ($preference == $default) {
|
|
unset_user_preference('calendar_savedflt', $user);
|
|
} else {
|
|
set_user_preference('calendar_savedflt', $preference, $user);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get calendar's allowed types
|
|
*
|
|
* @param stdClass $allowed list of allowed edit for event type
|
|
* @param stdClass|int $course object of a course or course id
|
|
*/
|
|
function calendar_get_allowed_types(&$allowed, $course = null) {
|
|
global $USER, $CFG, $DB;
|
|
$allowed = new stdClass();
|
|
$allowed->user = has_capability('moodle/calendar:manageownentries', context_system::instance());
|
|
$allowed->groups = false; // This may change just below
|
|
$allowed->courses = false; // This may change just below
|
|
$allowed->site = has_capability('moodle/calendar:manageentries', context_course::instance(SITEID));
|
|
|
|
if (!empty($course)) {
|
|
if (!is_object($course)) {
|
|
$course = $DB->get_record('course', array('id' => $course), '*', MUST_EXIST);
|
|
}
|
|
if ($course->id != SITEID) {
|
|
$coursecontext = context_course::instance($course->id);
|
|
$allowed->user = has_capability('moodle/calendar:manageownentries', $coursecontext);
|
|
|
|
if (has_capability('moodle/calendar:manageentries', $coursecontext)) {
|
|
$allowed->courses = array($course->id => 1);
|
|
|
|
if ($course->groupmode != NOGROUPS || !$course->groupmodeforce) {
|
|
if (has_capability('moodle/site:accessallgroups', $coursecontext)) {
|
|
$allowed->groups = groups_get_all_groups($course->id);
|
|
} else {
|
|
$allowed->groups = groups_get_all_groups($course->id, $USER->id);
|
|
}
|
|
}
|
|
} else if (has_capability('moodle/calendar:managegroupentries', $coursecontext)) {
|
|
if($course->groupmode != NOGROUPS || !$course->groupmodeforce) {
|
|
if (has_capability('moodle/site:accessallgroups', $coursecontext)) {
|
|
$allowed->groups = groups_get_all_groups($course->id);
|
|
} else {
|
|
$allowed->groups = groups_get_all_groups($course->id, $USER->id);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* See if user can add calendar entries at all
|
|
* used to print the "New Event" button
|
|
*
|
|
* @param stdClass $course object of a course or course id
|
|
* @return bool has the capability to add at least one event type
|
|
*/
|
|
function calendar_user_can_add_event($course) {
|
|
if (!isloggedin() || isguestuser()) {
|
|
return false;
|
|
}
|
|
calendar_get_allowed_types($allowed, $course);
|
|
return (bool)($allowed->user || $allowed->groups || $allowed->courses || $allowed->site);
|
|
}
|
|
|
|
/**
|
|
* Check wether the current user is permitted to add events
|
|
*
|
|
* @param stdClass $event object of event
|
|
* @return bool has the capability to add event
|
|
*/
|
|
function calendar_add_event_allowed($event) {
|
|
global $USER, $DB;
|
|
|
|
// can not be using guest account
|
|
if (!isloggedin() or isguestuser()) {
|
|
return false;
|
|
}
|
|
|
|
$sitecontext = context_system::instance();
|
|
// if user has manageentries at site level, always return true
|
|
if (has_capability('moodle/calendar:manageentries', $sitecontext)) {
|
|
return true;
|
|
}
|
|
|
|
switch ($event->eventtype) {
|
|
case 'course':
|
|
return has_capability('moodle/calendar:manageentries', $event->context);
|
|
|
|
case 'group':
|
|
// Allow users to add/edit group events if:
|
|
// 1) They have manageentries (= entries for whole course)
|
|
// 2) They have managegroupentries AND are in the group
|
|
$group = $DB->get_record('groups', array('id'=>$event->groupid));
|
|
return $group && (
|
|
has_capability('moodle/calendar:manageentries', $event->context) ||
|
|
(has_capability('moodle/calendar:managegroupentries', $event->context)
|
|
&& groups_is_member($event->groupid)));
|
|
|
|
case 'user':
|
|
if ($event->userid == $USER->id) {
|
|
return (has_capability('moodle/calendar:manageownentries', $event->context));
|
|
}
|
|
//there is no 'break;' intentionally
|
|
|
|
case 'site':
|
|
return has_capability('moodle/calendar:manageentries', $event->context);
|
|
|
|
default:
|
|
return has_capability('moodle/calendar:manageentries', $event->context);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Manage calendar events
|
|
*
|
|
* This class provides the required functionality in order to manage calendar events.
|
|
* It was introduced as part of Moodle 2.0 and was created in order to provide a
|
|
* better framework for dealing with calendar events in particular regard to file
|
|
* handling through the new file API
|
|
*
|
|
* @package core_calendar
|
|
* @category calendar
|
|
* @copyright 2009 Sam Hemelryk
|
|
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
|
|
*
|
|
* @property int $id The id within the event table
|
|
* @property string $name The name of the event
|
|
* @property string $description The description of the event
|
|
* @property int $format The format of the description FORMAT_?
|
|
* @property int $courseid The course the event is associated with (0 if none)
|
|
* @property int $groupid The group the event is associated with (0 if none)
|
|
* @property int $userid The user the event is associated with (0 if none)
|
|
* @property int $repeatid If this is a repeated event this will be set to the
|
|
* id of the original
|
|
* @property string $modulename If added by a module this will be the module name
|
|
* @property int $instance If added by a module this will be the module instance
|
|
* @property string $eventtype The event type
|
|
* @property int $timestart The start time as a timestamp
|
|
* @property int $timeduration The duration of the event in seconds
|
|
* @property int $visible 1 if the event is visible
|
|
* @property int $uuid ?
|
|
* @property int $sequence ?
|
|
* @property int $timemodified The time last modified as a timestamp
|
|
*/
|
|
class calendar_event {
|
|
|
|
/** @var array An object containing the event properties can be accessed via the magic __get/set methods */
|
|
protected $properties = null;
|
|
|
|
/**
|
|
* @var string The converted event discription with file paths resolved. This gets populated when someone requests description for the first time */
|
|
protected $_description = null;
|
|
|
|
/** @var array The options to use with this description editor */
|
|
protected $editoroptions = array(
|
|
'subdirs'=>false,
|
|
'forcehttps'=>false,
|
|
'maxfiles'=>-1,
|
|
'maxbytes'=>null,
|
|
'trusttext'=>false);
|
|
|
|
/** @var object The context to use with the description editor */
|
|
protected $editorcontext = null;
|
|
|
|
/**
|
|
* Instantiates a new event and optionally populates its properties with the
|
|
* data provided
|
|
*
|
|
* @param stdClass $data Optional. An object containing the properties to for
|
|
* an event
|
|
*/
|
|
public function __construct($data=null) {
|
|
global $CFG, $USER;
|
|
|
|
// First convert to object if it is not already (should either be object or assoc array)
|
|
if (!is_object($data)) {
|
|
$data = (object)$data;
|
|
}
|
|
|
|
$this->editoroptions['maxbytes'] = $CFG->maxbytes;
|
|
|
|
$data->eventrepeats = 0;
|
|
|
|
if (empty($data->id)) {
|
|
$data->id = null;
|
|
}
|
|
|
|
if (!empty($data->subscriptionid)) {
|
|
$data->subscription = calendar_get_subscription($data->subscriptionid);
|
|
}
|
|
|
|
// Default to a user event
|
|
if (empty($data->eventtype)) {
|
|
$data->eventtype = 'user';
|
|
}
|
|
|
|
// Default to the current user
|
|
if (empty($data->userid)) {
|
|
$data->userid = $USER->id;
|
|
}
|
|
|
|
if (!empty($data->timeduration) && is_array($data->timeduration)) {
|
|
$data->timeduration = make_timestamp($data->timeduration['year'], $data->timeduration['month'], $data->timeduration['day'], $data->timeduration['hour'], $data->timeduration['minute']) - $data->timestart;
|
|
}
|
|
if (!empty($data->description) && is_array($data->description)) {
|
|
$data->format = $data->description['format'];
|
|
$data->description = $data->description['text'];
|
|
} else if (empty($data->description)) {
|
|
$data->description = '';
|
|
$data->format = editors_get_preferred_format();
|
|
}
|
|
// Ensure form is defaulted correctly
|
|
if (empty($data->format)) {
|
|
$data->format = editors_get_preferred_format();
|
|
}
|
|
|
|
if (empty($data->context)) {
|
|
$data->context = $this->calculate_context($data);
|
|
}
|
|
$this->properties = $data;
|
|
}
|
|
|
|
/**
|
|
* Magic property method
|
|
*
|
|
* Attempts to call a set_$key method if one exists otherwise falls back
|
|
* to simply set the property
|
|
*
|
|
* @param string $key property name
|
|
* @param mixed $value value of the property
|
|
*/
|
|
public function __set($key, $value) {
|
|
if (method_exists($this, 'set_'.$key)) {
|
|
$this->{'set_'.$key}($value);
|
|
}
|
|
$this->properties->{$key} = $value;
|
|
}
|
|
|
|
/**
|
|
* Magic get method
|
|
*
|
|
* Attempts to call a get_$key method to return the property and ralls over
|
|
* to return the raw property
|
|
*
|
|
* @param string $key property name
|
|
* @return mixed property value
|
|
*/
|
|
public function __get($key) {
|
|
if (method_exists($this, 'get_'.$key)) {
|
|
return $this->{'get_'.$key}();
|
|
}
|
|
if (!isset($this->properties->{$key})) {
|
|
throw new coding_exception('Undefined property requested');
|
|
}
|
|
return $this->properties->{$key};
|
|
}
|
|
|
|
/**
|
|
* Stupid PHP needs an isset magic method if you use the get magic method and
|
|
* still want empty calls to work.... blah ~!
|
|
*
|
|
* @param string $key $key property name
|
|
* @return bool|mixed property value, false if property is not exist
|
|
*/
|
|
public function __isset($key) {
|
|
return !empty($this->properties->{$key});
|
|
}
|
|
|
|
/**
|
|
* Calculate the context value needed for calendar_event.
|
|
* Event's type can be determine by the available value store in $data
|
|
* It is important to check for the existence of course/courseid to determine
|
|
* the course event.
|
|
* Default value is set to CONTEXT_USER
|
|
*
|
|
* @param stdClass $data information about event
|
|
* @return stdClass The context object.
|
|
*/
|
|
protected function calculate_context(stdClass $data) {
|
|
global $USER, $DB;
|
|
|
|
$context = null;
|
|
if (isset($data->courseid) && $data->courseid > 0) {
|
|
$context = context_course::instance($data->courseid);
|
|
} else if (isset($data->course) && $data->course > 0) {
|
|
$context = context_course::instance($data->course);
|
|
} else if (isset($data->groupid) && $data->groupid > 0) {
|
|
$group = $DB->get_record('groups', array('id'=>$data->groupid));
|
|
$context = context_course::instance($group->courseid);
|
|
} else if (isset($data->userid) && $data->userid > 0 && $data->userid == $USER->id) {
|
|
$context = context_user::instance($data->userid);
|
|
} else if (isset($data->userid) && $data->userid > 0 && $data->userid != $USER->id &&
|
|
isset($data->instance) && $data->instance > 0) {
|
|
$cm = get_coursemodule_from_instance($data->modulename, $data->instance, 0, false, MUST_EXIST);
|
|
$context = context_course::instance($cm->course);
|
|
} else {
|
|
$context = context_user::instance($data->userid);
|
|
}
|
|
|
|
return $context;
|
|
}
|
|
|
|
/**
|
|
* Returns an array of editoroptions for this event: Called by __get
|
|
* Please use $blah = $event->editoroptions;
|
|
*
|
|
* @return array event editor options
|
|
*/
|
|
protected function get_editoroptions() {
|
|
return $this->editoroptions;
|
|
}
|
|
|
|
/**
|
|
* Returns an event description: Called by __get
|
|
* Please use $blah = $event->description;
|
|
*
|
|
* @return string event description
|
|
*/
|
|
protected function get_description() {
|
|
global $CFG;
|
|
|
|
require_once($CFG->libdir . '/filelib.php');
|
|
|
|
if ($this->_description === null) {
|
|
// Check if we have already resolved the context for this event
|
|
if ($this->editorcontext === null) {
|
|
// Switch on the event type to decide upon the appropriate context
|
|
// to use for this event
|
|
$this->editorcontext = $this->properties->context;
|
|
if ($this->properties->eventtype != 'user' && $this->properties->eventtype != 'course'
|
|
&& $this->properties->eventtype != 'site' && $this->properties->eventtype != 'group') {
|
|
return clean_text($this->properties->description, $this->properties->format);
|
|
}
|
|
}
|
|
|
|
// Work out the item id for the editor, if this is a repeated event then the files will
|
|
// be associated with the original
|
|
if (!empty($this->properties->repeatid) && $this->properties->repeatid > 0) {
|
|
$itemid = $this->properties->repeatid;
|
|
} else {
|
|
$itemid = $this->properties->id;
|
|
}
|
|
|
|
// Convert file paths in the description so that things display correctly
|
|
$this->_description = file_rewrite_pluginfile_urls($this->properties->description, 'pluginfile.php', $this->editorcontext->id, 'calendar', 'event_description', $itemid);
|
|
// Clean the text so no nasties get through
|
|
$this->_description = clean_text($this->_description, $this->properties->format);
|
|
}
|
|
// Finally return the description
|
|
return $this->_description;
|
|
}
|
|
|
|
/**
|
|
* Return the number of repeat events there are in this events series
|
|
*
|
|
* @return int number of event repeated
|
|
*/
|
|
public function count_repeats() {
|
|
global $DB;
|
|
if (!empty($this->properties->repeatid)) {
|
|
$this->properties->eventrepeats = $DB->count_records('event', array('repeatid'=>$this->properties->repeatid));
|
|
// We don't want to count ourselves
|
|
$this->properties->eventrepeats--;
|
|
}
|
|
return $this->properties->eventrepeats;
|
|
}
|
|
|
|
/**
|
|
* Update or create an event within the database
|
|
*
|
|
* Pass in a object containing the event properties and this function will
|
|
* insert it into the database and deal with any associated files
|
|
*
|
|
* @see add_event()
|
|
* @see update_event()
|
|
*
|
|
* @param stdClass $data object of event
|
|
* @param bool $checkcapability if moodle should check calendar managing capability or not
|
|
* @return bool event updated
|
|
*/
|
|
public function update($data, $checkcapability=true) {
|
|
global $DB, $USER;
|
|
|
|
foreach ($data as $key=>$value) {
|
|
$this->properties->$key = $value;
|
|
}
|
|
|
|
$this->properties->timemodified = time();
|
|
$usingeditor = (!empty($this->properties->description) && is_array($this->properties->description));
|
|
|
|
// Prepare event data.
|
|
$eventargs = array(
|
|
'context' => $this->properties->context,
|
|
'objectid' => $this->properties->id,
|
|
'other' => array(
|
|
'repeatid' => empty($this->properties->repeatid) ? 0 : $this->properties->repeatid,
|
|
'timestart' => $this->properties->timestart,
|
|
'name' => $this->properties->name
|
|
)
|
|
);
|
|
|
|
if (empty($this->properties->id) || $this->properties->id < 1) {
|
|
|
|
if ($checkcapability) {
|
|
if (!calendar_add_event_allowed($this->properties)) {
|
|
print_error('nopermissiontoupdatecalendar');
|
|
}
|
|
}
|
|
|
|
if ($usingeditor) {
|
|
switch ($this->properties->eventtype) {
|
|
case 'user':
|
|
$this->properties->courseid = 0;
|
|
$this->properties->course = 0;
|
|
$this->properties->groupid = 0;
|
|
$this->properties->userid = $USER->id;
|
|
break;
|
|
case 'site':
|
|
$this->properties->courseid = SITEID;
|
|
$this->properties->course = SITEID;
|
|
$this->properties->groupid = 0;
|
|
$this->properties->userid = $USER->id;
|
|
break;
|
|
case 'course':
|
|
$this->properties->groupid = 0;
|
|
$this->properties->userid = $USER->id;
|
|
break;
|
|
case 'group':
|
|
$this->properties->userid = $USER->id;
|
|
break;
|
|
default:
|
|
// Ewww we should NEVER get here, but just incase we do lets
|
|
// fail gracefully
|
|
$usingeditor = false;
|
|
break;
|
|
}
|
|
|
|
// If we are actually using the editor, we recalculate the context because some default values
|
|
// were set when calculate_context() was called from the constructor.
|
|
if ($usingeditor) {
|
|
$this->properties->context = $this->calculate_context($this->properties);
|
|
$this->editorcontext = $this->properties->context;
|
|
}
|
|
|
|
$editor = $this->properties->description;
|
|
$this->properties->format = $this->properties->description['format'];
|
|
$this->properties->description = $this->properties->description['text'];
|
|
}
|
|
|
|
// Insert the event into the database
|
|
$this->properties->id = $DB->insert_record('event', $this->properties);
|
|
|
|
if ($usingeditor) {
|
|
$this->properties->description = file_save_draft_area_files(
|
|
$editor['itemid'],
|
|
$this->editorcontext->id,
|
|
'calendar',
|
|
'event_description',
|
|
$this->properties->id,
|
|
$this->editoroptions,
|
|
$editor['text'],
|
|
$this->editoroptions['forcehttps']);
|
|
$DB->set_field('event', 'description', $this->properties->description, array('id'=>$this->properties->id));
|
|
}
|
|
|
|
// Log the event entry.
|
|
$eventargs['objectid'] = $this->properties->id;
|
|
$eventargs['context'] = $this->properties->context;
|
|
$event = \core\event\calendar_event_created::create($eventargs);
|
|
$event->trigger();
|
|
|
|
$repeatedids = array();
|
|
|
|
if (!empty($this->properties->repeat)) {
|
|
$this->properties->repeatid = $this->properties->id;
|
|
$DB->set_field('event', 'repeatid', $this->properties->repeatid, array('id'=>$this->properties->id));
|
|
|
|
$eventcopy = clone($this->properties);
|
|
unset($eventcopy->id);
|
|
|
|
for($i = 1; $i < $eventcopy->repeats; $i++) {
|
|
|
|
$eventcopy->timestart = ($eventcopy->timestart+WEEKSECS) + dst_offset_on($eventcopy->timestart) - dst_offset_on($eventcopy->timestart+WEEKSECS);
|
|
|
|
// Get the event id for the log record.
|
|
$eventcopyid = $DB->insert_record('event', $eventcopy);
|
|
|
|
// If the context has been set delete all associated files
|
|
if ($usingeditor) {
|
|
$fs = get_file_storage();
|
|
$files = $fs->get_area_files($this->editorcontext->id, 'calendar', 'event_description', $this->properties->id);
|
|
foreach ($files as $file) {
|
|
$fs->create_file_from_storedfile(array('itemid'=>$eventcopyid), $file);
|
|
}
|
|
}
|
|
|
|
$repeatedids[] = $eventcopyid;
|
|
|
|
// Trigger an event.
|
|
$eventargs['objectid'] = $eventcopyid;
|
|
$eventargs['other']['timestart'] = $eventcopy->timestart;
|
|
$event = \core\event\calendar_event_created::create($eventargs);
|
|
$event->trigger();
|
|
}
|
|
}
|
|
|
|
// Hook for tracking added events
|
|
self::calendar_event_hook('add_event', array($this->properties, $repeatedids));
|
|
return true;
|
|
} else {
|
|
|
|
if ($checkcapability) {
|
|
if(!calendar_edit_event_allowed($this->properties)) {
|
|
print_error('nopermissiontoupdatecalendar');
|
|
}
|
|
}
|
|
|
|
if ($usingeditor) {
|
|
if ($this->editorcontext !== null) {
|
|
$this->properties->description = file_save_draft_area_files(
|
|
$this->properties->description['itemid'],
|
|
$this->editorcontext->id,
|
|
'calendar',
|
|
'event_description',
|
|
$this->properties->id,
|
|
$this->editoroptions,
|
|
$this->properties->description['text'],
|
|
$this->editoroptions['forcehttps']);
|
|
} else {
|
|
$this->properties->format = $this->properties->description['format'];
|
|
$this->properties->description = $this->properties->description['text'];
|
|
}
|
|
}
|
|
|
|
$event = $DB->get_record('event', array('id'=>$this->properties->id));
|
|
|
|
$updaterepeated = (!empty($this->properties->repeatid) && !empty($this->properties->repeateditall));
|
|
|
|
if ($updaterepeated) {
|
|
// Update all
|
|
if ($this->properties->timestart != $event->timestart) {
|
|
$timestartoffset = $this->properties->timestart - $event->timestart;
|
|
$sql = "UPDATE {event}
|
|
SET name = ?,
|
|
description = ?,
|
|
timestart = timestart + ?,
|
|
timeduration = ?,
|
|
timemodified = ?
|
|
WHERE repeatid = ?";
|
|
$params = array($this->properties->name, $this->properties->description, $timestartoffset, $this->properties->timeduration, time(), $event->repeatid);
|
|
} else {
|
|
$sql = "UPDATE {event} SET name = ?, description = ?, timeduration = ?, timemodified = ? WHERE repeatid = ?";
|
|
$params = array($this->properties->name, $this->properties->description, $this->properties->timeduration, time(), $event->repeatid);
|
|
}
|
|
$DB->execute($sql, $params);
|
|
|
|
// Trigger an update event for each of the calendar event.
|
|
$events = $DB->get_records('event', array('repeatid' => $event->repeatid), '', 'id,timestart');
|
|
foreach ($events as $event) {
|
|
$eventargs['objectid'] = $event->id;
|
|
$eventargs['other']['timestart'] = $event->timestart;
|
|
$event = \core\event\calendar_event_updated::create($eventargs);
|
|
$event->trigger();
|
|
}
|
|
} else {
|
|
$DB->update_record('event', $this->properties);
|
|
$event = calendar_event::load($this->properties->id);
|
|
$this->properties = $event->properties();
|
|
|
|
// Trigger an update event.
|
|
$event = \core\event\calendar_event_updated::create($eventargs);
|
|
$event->trigger();
|
|
}
|
|
|
|
// Hook for tracking event updates
|
|
self::calendar_event_hook('update_event', array($this->properties, $updaterepeated));
|
|
return true;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Deletes an event and if selected an repeated events in the same series
|
|
*
|
|
* This function deletes an event, any associated events if $deleterepeated=true,
|
|
* and cleans up any files associated with the events.
|
|
*
|
|
* @see delete_event()
|
|
*
|
|
* @param bool $deleterepeated delete event repeatedly
|
|
* @return bool succession of deleting event
|
|
*/
|
|
public function delete($deleterepeated=false) {
|
|
global $DB;
|
|
|
|
// If $this->properties->id is not set then something is wrong
|
|
if (empty($this->properties->id)) {
|
|
debugging('Attempting to delete an event before it has been loaded', DEBUG_DEVELOPER);
|
|
return false;
|
|
}
|
|
$calevent = $DB->get_record('event', array('id' => $this->properties->id), '*', MUST_EXIST);
|
|
// Delete the event
|
|
$DB->delete_records('event', array('id'=>$this->properties->id));
|
|
|
|
// Trigger an event for the delete action.
|
|
$eventargs = array(
|
|
'context' => $this->properties->context,
|
|
'objectid' => $this->properties->id,
|
|
'other' => array(
|
|
'repeatid' => empty($this->properties->repeatid) ? 0 : $this->properties->repeatid,
|
|
'timestart' => $this->properties->timestart,
|
|
'name' => $this->properties->name
|
|
));
|
|
$event = \core\event\calendar_event_deleted::create($eventargs);
|
|
$event->add_record_snapshot('event', $calevent);
|
|
$event->trigger();
|
|
|
|
// If we are deleting parent of a repeated event series, promote the next event in the series as parent
|
|
if (($this->properties->id == $this->properties->repeatid) && !$deleterepeated) {
|
|
$newparent = $DB->get_field_sql("SELECT id from {event} where repeatid = ? order by id ASC", array($this->properties->id), IGNORE_MULTIPLE);
|
|
if (!empty($newparent)) {
|
|
$DB->execute("UPDATE {event} SET repeatid = ? WHERE repeatid = ?", array($newparent, $this->properties->id));
|
|
// Get all records where the repeatid is the same as the event being removed
|
|
$events = $DB->get_records('event', array('repeatid' => $newparent));
|
|
// For each of the returned events trigger the event_update hook and an update event.
|
|
foreach ($events as $event) {
|
|
// Trigger an event for the update.
|
|
$eventargs['objectid'] = $event->id;
|
|
$eventargs['other']['timestart'] = $event->timestart;
|
|
$event = \core\event\calendar_event_updated::create($eventargs);
|
|
$event->trigger();
|
|
|
|
self::calendar_event_hook('update_event', array($event, false));
|
|
}
|
|
}
|
|
}
|
|
|
|
// If the editor context hasn't already been set then set it now
|
|
if ($this->editorcontext === null) {
|
|
$this->editorcontext = $this->properties->context;
|
|
}
|
|
|
|
// If the context has been set delete all associated files
|
|
if ($this->editorcontext !== null) {
|
|
$fs = get_file_storage();
|
|
$files = $fs->get_area_files($this->editorcontext->id, 'calendar', 'event_description', $this->properties->id);
|
|
foreach ($files as $file) {
|
|
$file->delete();
|
|
}
|
|
}
|
|
|
|
// Fire the event deleted hook
|
|
self::calendar_event_hook('delete_event', array($this->properties->id, $deleterepeated));
|
|
|
|
// If we need to delete repeated events then we will fetch them all and delete one by one
|
|
if ($deleterepeated && !empty($this->properties->repeatid) && $this->properties->repeatid > 0) {
|
|
// Get all records where the repeatid is the same as the event being removed
|
|
$events = $DB->get_records('event', array('repeatid'=>$this->properties->repeatid));
|
|
// For each of the returned events populate a calendar_event object and call delete
|
|
// make sure the arg passed is false as we are already deleting all repeats
|
|
foreach ($events as $event) {
|
|
$event = new calendar_event($event);
|
|
$event->delete(false);
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Fetch all event properties
|
|
*
|
|
* This function returns all of the events properties as an object and optionally
|
|
* can prepare an editor for the description field at the same time. This is
|
|
* designed to work when the properties are going to be used to set the default
|
|
* values of a moodle forms form.
|
|
*
|
|
* @param bool $prepareeditor If set to true a editor is prepared for use with
|
|
* the mforms editor element. (for description)
|
|
* @return stdClass Object containing event properties
|
|
*/
|
|
public function properties($prepareeditor=false) {
|
|
global $USER, $CFG, $DB;
|
|
|
|
// First take a copy of the properties. We don't want to actually change the
|
|
// properties or we'd forever be converting back and forwards between an
|
|
// editor formatted description and not
|
|
$properties = clone($this->properties);
|
|
// Clean the description here
|
|
$properties->description = clean_text($properties->description, $properties->format);
|
|
|
|
// If set to true we need to prepare the properties for use with an editor
|
|
// and prepare the file area
|
|
if ($prepareeditor) {
|
|
|
|
// We may or may not have a property id. If we do then we need to work
|
|
// out the context so we can copy the existing files to the draft area
|
|
if (!empty($properties->id)) {
|
|
|
|
if ($properties->eventtype === 'site') {
|
|
// Site context
|
|
$this->editorcontext = $this->properties->context;
|
|
} else if ($properties->eventtype === 'user') {
|
|
// User context
|
|
$this->editorcontext = $this->properties->context;
|
|
} else if ($properties->eventtype === 'group' || $properties->eventtype === 'course') {
|
|
// First check the course is valid
|
|
$course = $DB->get_record('course', array('id'=>$properties->courseid));
|
|
if (!$course) {
|
|
print_error('invalidcourse');
|
|
}
|
|
// Course context
|
|
$this->editorcontext = $this->properties->context;
|
|
// We have a course and are within the course context so we had
|
|
// better use the courses max bytes value
|
|
$this->editoroptions['maxbytes'] = $course->maxbytes;
|
|
} else {
|
|
// If we get here we have a custom event type as used by some
|
|
// modules. In this case the event will have been added by
|
|
// code and we won't need the editor
|
|
$this->editoroptions['maxbytes'] = 0;
|
|
$this->editoroptions['maxfiles'] = 0;
|
|
}
|
|
|
|
if (empty($this->editorcontext) || empty($this->editorcontext->id)) {
|
|
$contextid = false;
|
|
} else {
|
|
// Get the context id that is what we really want
|
|
$contextid = $this->editorcontext->id;
|
|
}
|
|
} else {
|
|
|
|
// If we get here then this is a new event in which case we don't need a
|
|
// context as there is no existing files to copy to the draft area.
|
|
$contextid = null;
|
|
}
|
|
|
|
// If the contextid === false we don't support files so no preparing
|
|
// a draft area
|
|
if ($contextid !== false) {
|
|
// Just encase it has already been submitted
|
|
$draftiddescription = file_get_submitted_draft_itemid('description');
|
|
// Prepare the draft area, this copies existing files to the draft area as well
|
|
$properties->description = file_prepare_draft_area($draftiddescription, $contextid, 'calendar', 'event_description', $properties->id, $this->editoroptions, $properties->description);
|
|
} else {
|
|
$draftiddescription = 0;
|
|
}
|
|
|
|
// Structure the description field as the editor requires
|
|
$properties->description = array('text'=>$properties->description, 'format'=>$properties->format, 'itemid'=>$draftiddescription);
|
|
}
|
|
|
|
// Finally return the properties
|
|
return $properties;
|
|
}
|
|
|
|
/**
|
|
* Toggles the visibility of an event
|
|
*
|
|
* @param null|bool $force If it is left null the events visibility is flipped,
|
|
* If it is false the event is made hidden, if it is true it
|
|
* is made visible.
|
|
* @return bool if event is successfully updated, toggle will be visible
|
|
*/
|
|
public function toggle_visibility($force=null) {
|
|
global $CFG, $DB;
|
|
|
|
// Set visible to the default if it is not already set
|
|
if (empty($this->properties->visible)) {
|
|
$this->properties->visible = 1;
|
|
}
|
|
|
|
if ($force === true || ($force !== false && $this->properties->visible == 0)) {
|
|
// Make this event visible
|
|
$this->properties->visible = 1;
|
|
// Fire the hook
|
|
self::calendar_event_hook('show_event', array($this->properties));
|
|
} else {
|
|
// Make this event hidden
|
|
$this->properties->visible = 0;
|
|
// Fire the hook
|
|
self::calendar_event_hook('hide_event', array($this->properties));
|
|
}
|
|
|
|
// Update the database to reflect this change
|
|
return $DB->set_field('event', 'visible', $this->properties->visible, array('id'=>$this->properties->id));
|
|
}
|
|
|
|
/**
|
|
* Attempts to call the hook for the specified action should a calendar type
|
|
* by set $CFG->calendar, and the appopriate function defined
|
|
*
|
|
* @param string $action One of `update_event`, `add_event`, `delete_event`, `show_event`, `hide_event`
|
|
* @param array $args The args to pass to the hook, usually the event is the first element
|
|
* @return bool attempts to call event hook
|
|
*/
|
|
public static function calendar_event_hook($action, array $args) {
|
|
global $CFG;
|
|
static $extcalendarinc;
|
|
if ($extcalendarinc === null) {
|
|
if (!empty($CFG->calendar)) {
|
|
if (is_readable($CFG->dirroot .'/calendar/'. $CFG->calendar .'/lib.php')) {
|
|
include_once($CFG->dirroot .'/calendar/'. $CFG->calendar .'/lib.php');
|
|
$extcalendarinc = true;
|
|
} else {
|
|
debugging("Calendar lib file missing or not readable at /calendar/{$CFG->calendar}/lib.php.",
|
|
DEBUG_DEVELOPER);
|
|
$extcalendarinc = false;
|
|
}
|
|
} else {
|
|
$extcalendarinc = false;
|
|
}
|
|
}
|
|
if($extcalendarinc === false) {
|
|
return false;
|
|
}
|
|
$hook = $CFG->calendar .'_'.$action;
|
|
if (function_exists($hook)) {
|
|
call_user_func_array($hook, $args);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Returns a calendar_event object when provided with an event id
|
|
*
|
|
* This function makes use of MUST_EXIST, if the event id passed in is invalid
|
|
* it will result in an exception being thrown
|
|
*
|
|
* @param int|object $param event object or event id
|
|
* @return calendar_event|false status for loading calendar_event
|
|
*/
|
|
public static function load($param) {
|
|
global $DB;
|
|
if (is_object($param)) {
|
|
$event = new calendar_event($param);
|
|
} else {
|
|
$event = $DB->get_record('event', array('id'=>(int)$param), '*', MUST_EXIST);
|
|
$event = new calendar_event($event);
|
|
}
|
|
return $event;
|
|
}
|
|
|
|
/**
|
|
* Creates a new event and returns a calendar_event object
|
|
*
|
|
* @param stdClass|array $properties An object containing event properties
|
|
* @param bool $checkcapability Check caps or not
|
|
* @throws coding_exception
|
|
*
|
|
* @return calendar_event|bool The event object or false if it failed
|
|
*/
|
|
public static function create($properties, $checkcapability = true) {
|
|
if (is_array($properties)) {
|
|
$properties = (object)$properties;
|
|
}
|
|
if (!is_object($properties)) {
|
|
throw new coding_exception('When creating an event properties should be either an object or an assoc array');
|
|
}
|
|
$event = new calendar_event($properties);
|
|
if ($event->update($properties, $checkcapability)) {
|
|
return $event;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Calendar information class
|
|
*
|
|
* This class is used simply to organise the information pertaining to a calendar
|
|
* and is used primarily to make information easily available.
|
|
*
|
|
* @package core_calendar
|
|
* @category calendar
|
|
* @copyright 2010 Sam Hemelryk
|
|
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
|
|
*/
|
|
class calendar_information {
|
|
|
|
/**
|
|
* @var int The timestamp
|
|
*
|
|
* Rather than setting the day, month and year we will set a timestamp which will be able
|
|
* to be used by multiple calendars.
|
|
*/
|
|
public $time;
|
|
|
|
/** @var int A course id */
|
|
public $courseid = null;
|
|
|
|
/** @var array An array of courses */
|
|
public $courses = array();
|
|
|
|
/** @var array An array of groups */
|
|
public $groups = array();
|
|
|
|
/** @var array An array of users */
|
|
public $users = array();
|
|
|
|
/**
|
|
* Creates a new instance
|
|
*
|
|
* @param int $day the number of the day
|
|
* @param int $month the number of the month
|
|
* @param int $year the number of the year
|
|
* @param int $time the unixtimestamp representing the date we want to view, this is used instead of $calmonth
|
|
* and $calyear to support multiple calendars
|
|
*/
|
|
public function __construct($day = 0, $month = 0, $year = 0, $time = 0) {
|
|
// If a day, month and year were passed then convert it to a timestamp. If these were passed
|
|
// then we can assume the day, month and year are passed as Gregorian, as no where in core
|
|
// should we be passing these values rather than the time. This is done for BC.
|
|
if (!empty($day) || !empty($month) || !empty($year)) {
|
|
$date = usergetdate(time());
|
|
if (empty($day)) {
|
|
$day = $date['mday'];
|
|
}
|
|
if (empty($month)) {
|
|
$month = $date['mon'];
|
|
}
|
|
if (empty($year)) {
|
|
$year = $date['year'];
|
|
}
|
|
if (checkdate($month, $day, $year)) {
|
|
$this->time = make_timestamp($year, $month, $day);
|
|
} else {
|
|
$this->time = time();
|
|
}
|
|
} else if (!empty($time)) {
|
|
$this->time = $time;
|
|
} else {
|
|
$this->time = time();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Initialize calendar information
|
|
*
|
|
* @param stdClass $course object
|
|
* @param array $coursestoload An array of courses [$course->id => $course]
|
|
* @param bool $ignorefilters options to use filter
|
|
*/
|
|
public function prepare_for_view(stdClass $course, array $coursestoload, $ignorefilters = false) {
|
|
$this->courseid = $course->id;
|
|
$this->course = $course;
|
|
list($courses, $group, $user) = calendar_set_filters($coursestoload, $ignorefilters);
|
|
$this->courses = $courses;
|
|
$this->groups = $group;
|
|
$this->users = $user;
|
|
}
|
|
|
|
/**
|
|
* Ensures the date for the calendar is correct and either sets it to now
|
|
* or throws a moodle_exception if not
|
|
*
|
|
* @param bool $defaultonow use current time
|
|
* @throws moodle_exception
|
|
* @return bool validation of checkdate
|
|
*/
|
|
public function checkdate($defaultonow = true) {
|
|
if (!checkdate($this->month, $this->day, $this->year)) {
|
|
if ($defaultonow) {
|
|
$now = usergetdate(time());
|
|
$this->day = intval($now['mday']);
|
|
$this->month = intval($now['mon']);
|
|
$this->year = intval($now['year']);
|
|
return true;
|
|
} else {
|
|
throw new moodle_exception('invaliddate');
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Gets todays timestamp for the calendar
|
|
*
|
|
* @return int today timestamp
|
|
*/
|
|
public function timestamp_today() {
|
|
return $this->time;
|
|
}
|
|
/**
|
|
* Gets tomorrows timestamp for the calendar
|
|
*
|
|
* @return int tomorrow timestamp
|
|
*/
|
|
public function timestamp_tomorrow() {
|
|
return $this->time + DAYSECS;
|
|
}
|
|
/**
|
|
* Adds the pretend blocks for the calendar
|
|
*
|
|
* @param core_calendar_renderer $renderer
|
|
* @param bool $showfilters display filters, false is set as default
|
|
* @param string|null $view preference view options (eg: day, month, upcoming)
|
|
*/
|
|
public function add_sidecalendar_blocks(core_calendar_renderer $renderer, $showfilters=false, $view=null) {
|
|
if ($showfilters) {
|
|
$filters = new block_contents();
|
|
$filters->content = $renderer->fake_block_filters($this->courseid, 0, 0, 0, $view, $this->courses);
|
|
$filters->footer = '';
|
|
$filters->title = get_string('eventskey', 'calendar');
|
|
$renderer->add_pretend_calendar_block($filters, BLOCK_POS_RIGHT);
|
|
}
|
|
$block = new block_contents;
|
|
$block->content = $renderer->fake_block_threemonths($this);
|
|
$block->footer = '';
|
|
$block->title = get_string('monthlyview', 'calendar');
|
|
$renderer->add_pretend_calendar_block($block, BLOCK_POS_RIGHT);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns option list for the poll interval setting.
|
|
*
|
|
* @return array An array of poll interval options. Interval => description.
|
|
*/
|
|
function calendar_get_pollinterval_choices() {
|
|
return array(
|
|
'0' => new lang_string('never', 'calendar'),
|
|
HOURSECS => new lang_string('hourly', 'calendar'),
|
|
DAYSECS => new lang_string('daily', 'calendar'),
|
|
WEEKSECS => new lang_string('weekly', 'calendar'),
|
|
'2628000' => new lang_string('monthly', 'calendar'),
|
|
YEARSECS => new lang_string('annually', 'calendar')
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Returns option list of available options for the calendar event type, given the current user and course.
|
|
*
|
|
* @param int $courseid The id of the course
|
|
* @return array An array containing the event types the user can create.
|
|
*/
|
|
function calendar_get_eventtype_choices($courseid) {
|
|
$choices = array();
|
|
$allowed = new stdClass;
|
|
calendar_get_allowed_types($allowed, $courseid);
|
|
|
|
if ($allowed->user) {
|
|
$choices['user'] = get_string('userevents', 'calendar');
|
|
}
|
|
if ($allowed->site) {
|
|
$choices['site'] = get_string('siteevents', 'calendar');
|
|
}
|
|
if (!empty($allowed->courses)) {
|
|
$choices['course'] = get_string('courseevents', 'calendar');
|
|
}
|
|
if (!empty($allowed->groups) and is_array($allowed->groups)) {
|
|
$choices['group'] = get_string('group');
|
|
}
|
|
|
|
return array($choices, $allowed->groups);
|
|
}
|
|
|
|
/**
|
|
* Add an iCalendar subscription to the database.
|
|
*
|
|
* @param stdClass $sub The subscription object (e.g. from the form)
|
|
* @return int The insert ID, if any.
|
|
*/
|
|
function calendar_add_subscription($sub) {
|
|
global $DB, $USER, $SITE;
|
|
|
|
if ($sub->eventtype === 'site') {
|
|
$sub->courseid = $SITE->id;
|
|
} else if ($sub->eventtype === 'group' || $sub->eventtype === 'course') {
|
|
$sub->courseid = $sub->course;
|
|
} else {
|
|
// User events.
|
|
$sub->courseid = 0;
|
|
}
|
|
$sub->userid = $USER->id;
|
|
|
|
// File subscriptions never update.
|
|
if (empty($sub->url)) {
|
|
$sub->pollinterval = 0;
|
|
}
|
|
|
|
if (!empty($sub->name)) {
|
|
if (empty($sub->id)) {
|
|
$id = $DB->insert_record('event_subscriptions', $sub);
|
|
// we cannot cache the data here because $sub is not complete.
|
|
return $id;
|
|
} else {
|
|
// Why are we doing an update here?
|
|
calendar_update_subscription($sub);
|
|
return $sub->id;
|
|
}
|
|
} else {
|
|
print_error('errorbadsubscription', 'importcalendar');
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Add an iCalendar event to the Moodle calendar.
|
|
*
|
|
* @param stdClass $event The RFC-2445 iCalendar event
|
|
* @param int $courseid The course ID
|
|
* @param int $subscriptionid The iCalendar subscription ID
|
|
* @throws dml_exception A DML specific exception is thrown for invalid subscriptionids.
|
|
* @return int Code: CALENDAR_IMPORT_EVENT_UPDATED = updated, CALENDAR_IMPORT_EVENT_INSERTED = inserted, 0 = error
|
|
*/
|
|
function calendar_add_icalendar_event($event, $courseid, $subscriptionid) {
|
|
global $DB;
|
|
|
|
// Probably an unsupported X-MICROSOFT-CDO-BUSYSTATUS event.
|
|
if (empty($event->properties['SUMMARY'])) {
|
|
return 0;
|
|
}
|
|
|
|
$name = $event->properties['SUMMARY'][0]->value;
|
|
$name = str_replace('\n', '<br />', $name);
|
|
$name = str_replace('\\', '', $name);
|
|
$name = preg_replace('/\s+/', ' ', $name);
|
|
|
|
$eventrecord = new stdClass;
|
|
$eventrecord->name = clean_param($name, PARAM_NOTAGS);
|
|
|
|
if (empty($event->properties['DESCRIPTION'][0]->value)) {
|
|
$description = '';
|
|
} else {
|
|
$description = $event->properties['DESCRIPTION'][0]->value;
|
|
$description = str_replace('\n', '<br />', $description);
|
|
$description = str_replace('\\', '', $description);
|
|
$description = preg_replace('/\s+/', ' ', $description);
|
|
}
|
|
$eventrecord->description = clean_param($description, PARAM_NOTAGS);
|
|
|
|
// Probably a repeating event with RRULE etc. TODO: skip for now.
|
|
if (empty($event->properties['DTSTART'][0]->value)) {
|
|
return 0;
|
|
}
|
|
|
|
$defaulttz = date_default_timezone_get();
|
|
$tz = isset($event->properties['DTSTART'][0]->parameters['TZID']) ? $event->properties['DTSTART'][0]->parameters['TZID'] :
|
|
'UTC';
|
|
$eventrecord->timestart = strtotime($event->properties['DTSTART'][0]->value . ' ' . $tz);
|
|
if (empty($event->properties['DTEND'])) {
|
|
$eventrecord->timeduration = 3600; // one hour if no end time specified
|
|
} else {
|
|
$endtz = isset($event->properties['DTEND'][0]->parameters['TZID']) ? $event->properties['DTEND'][0]->parameters['TZID'] :
|
|
'UTC';
|
|
$eventrecord->timeduration = strtotime($event->properties['DTEND'][0]->value . ' ' . $endtz) - $eventrecord->timestart;
|
|
}
|
|
$eventrecord->uuid = $event->properties['UID'][0]->value;
|
|
$eventrecord->timemodified = time();
|
|
|
|
// Add the iCal subscription details if required.
|
|
// We should never do anything with an event without a subscription reference.
|
|
$sub = calendar_get_subscription($subscriptionid);
|
|
$eventrecord->subscriptionid = $subscriptionid;
|
|
$eventrecord->userid = $sub->userid;
|
|
$eventrecord->groupid = $sub->groupid;
|
|
$eventrecord->courseid = $sub->courseid;
|
|
$eventrecord->eventtype = $sub->eventtype;
|
|
|
|
if ($updaterecord = $DB->get_record('event', array('uuid' => $eventrecord->uuid))) {
|
|
$eventrecord->id = $updaterecord->id;
|
|
$return = CALENDAR_IMPORT_EVENT_UPDATED; // Update.
|
|
} else {
|
|
$return = CALENDAR_IMPORT_EVENT_INSERTED; // Insert.
|
|
}
|
|
if ($createdevent = calendar_event::create($eventrecord, false)) {
|
|
if (!empty($event->properties['RRULE'])) {
|
|
// Repeating events.
|
|
date_default_timezone_set($tz); // Change time zone to parse all events.
|
|
$rrule = new \core_calendar\rrule_manager($event->properties['RRULE'][0]->value);
|
|
$rrule->parse_rrule();
|
|
$rrule->create_events($createdevent);
|
|
date_default_timezone_set($defaulttz); // Change time zone back to what it was.
|
|
}
|
|
return $return;
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Update a subscription from the form data in one of the rows in the existing subscriptions table.
|
|
*
|
|
* @param int $subscriptionid The ID of the subscription we are acting upon.
|
|
* @param int $pollinterval The poll interval to use.
|
|
* @param int $action The action to be performed. One of update or remove.
|
|
* @throws dml_exception if invalid subscriptionid is provided
|
|
* @return string A log of the import progress, including errors
|
|
*/
|
|
function calendar_process_subscription_row($subscriptionid, $pollinterval, $action) {
|
|
|
|
// Fetch the subscription from the database making sure it exists.
|
|
$sub = calendar_get_subscription($subscriptionid);
|
|
|
|
// Update or remove the subscription, based on action.
|
|
switch ($action) {
|
|
case CALENDAR_SUBSCRIPTION_UPDATE:
|
|
// Skip updating file subscriptions.
|
|
if (empty($sub->url)) {
|
|
break;
|
|
}
|
|
$sub->pollinterval = $pollinterval;
|
|
calendar_update_subscription($sub);
|
|
|
|
// Update the events.
|
|
return "<p>".get_string('subscriptionupdated', 'calendar', $sub->name)."</p>" . calendar_update_subscription_events($subscriptionid);
|
|
|
|
case CALENDAR_SUBSCRIPTION_REMOVE:
|
|
calendar_delete_subscription($subscriptionid);
|
|
return get_string('subscriptionremoved', 'calendar', $sub->name);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
return '';
|
|
}
|
|
|
|
/**
|
|
* Delete subscription and all related events.
|
|
*
|
|
* @param int|stdClass $subscription subscription or it's id, which needs to be deleted.
|
|
*/
|
|
function calendar_delete_subscription($subscription) {
|
|
global $DB;
|
|
|
|
if (is_object($subscription)) {
|
|
$subscription = $subscription->id;
|
|
}
|
|
// Delete subscription and related events.
|
|
$DB->delete_records('event', array('subscriptionid' => $subscription));
|
|
$DB->delete_records('event_subscriptions', array('id' => $subscription));
|
|
cache_helper::invalidate_by_definition('core', 'calendar_subscriptions', array(), array($subscription));
|
|
}
|
|
/**
|
|
* From a URL, fetch the calendar and return an iCalendar object.
|
|
*
|
|
* @param string $url The iCalendar URL
|
|
* @return stdClass The iCalendar object
|
|
*/
|
|
function calendar_get_icalendar($url) {
|
|
global $CFG;
|
|
|
|
require_once($CFG->libdir.'/filelib.php');
|
|
|
|
$curl = new curl();
|
|
$curl->setopt(array('CURLOPT_FOLLOWLOCATION' => 1, 'CURLOPT_MAXREDIRS' => 5));
|
|
$calendar = $curl->get($url);
|
|
// Http code validation should actually be the job of curl class.
|
|
if (!$calendar || $curl->info['http_code'] != 200 || !empty($curl->errorno)) {
|
|
throw new moodle_exception('errorinvalidicalurl', 'calendar');
|
|
}
|
|
|
|
$ical = new iCalendar();
|
|
$ical->unserialize($calendar);
|
|
return $ical;
|
|
}
|
|
|
|
/**
|
|
* Import events from an iCalendar object into a course calendar.
|
|
*
|
|
* @param stdClass $ical The iCalendar object.
|
|
* @param int $courseid The course ID for the calendar.
|
|
* @param int $subscriptionid The subscription ID.
|
|
* @return string A log of the import progress, including errors.
|
|
*/
|
|
function calendar_import_icalendar_events($ical, $courseid, $subscriptionid = null) {
|
|
global $DB;
|
|
$return = '';
|
|
$eventcount = 0;
|
|
$updatecount = 0;
|
|
|
|
// Large calendars take a while...
|
|
core_php_time_limit::raise(300);
|
|
|
|
// Mark all events in a subscription with a zero timestamp.
|
|
if (!empty($subscriptionid)) {
|
|
$sql = "UPDATE {event} SET timemodified = :time WHERE subscriptionid = :id";
|
|
$DB->execute($sql, array('time' => 0, 'id' => $subscriptionid));
|
|
}
|
|
foreach ($ical->components['VEVENT'] as $event) {
|
|
$res = calendar_add_icalendar_event($event, $courseid, $subscriptionid);
|
|
switch ($res) {
|
|
case CALENDAR_IMPORT_EVENT_UPDATED:
|
|
$updatecount++;
|
|
break;
|
|
case CALENDAR_IMPORT_EVENT_INSERTED:
|
|
$eventcount++;
|
|
break;
|
|
case 0:
|
|
$return .= '<p>'.get_string('erroraddingevent', 'calendar').': '.(empty($event->properties['SUMMARY'])?'('.get_string('notitle', 'calendar').')':$event->properties['SUMMARY'][0]->value)." </p>\n";
|
|
break;
|
|
}
|
|
}
|
|
$return .= "<p> ".get_string('eventsimported', 'calendar', $eventcount)."</p>";
|
|
$return .= "<p> ".get_string('eventsupdated', 'calendar', $updatecount)."</p>";
|
|
|
|
// Delete remaining zero-marked events since they're not in remote calendar.
|
|
if (!empty($subscriptionid)) {
|
|
$deletecount = $DB->count_records('event', array('timemodified' => 0, 'subscriptionid' => $subscriptionid));
|
|
if (!empty($deletecount)) {
|
|
$sql = "DELETE FROM {event} WHERE timemodified = :time AND subscriptionid = :id";
|
|
$DB->execute($sql, array('time' => 0, 'id' => $subscriptionid));
|
|
$return .= "<p> ".get_string('eventsdeleted', 'calendar').": {$deletecount} </p>\n";
|
|
}
|
|
}
|
|
|
|
return $return;
|
|
}
|
|
|
|
/**
|
|
* Fetch a calendar subscription and update the events in the calendar.
|
|
*
|
|
* @param int $subscriptionid The course ID for the calendar.
|
|
* @return string A log of the import progress, including errors.
|
|
*/
|
|
function calendar_update_subscription_events($subscriptionid) {
|
|
global $DB;
|
|
|
|
$sub = calendar_get_subscription($subscriptionid);
|
|
// Don't update a file subscription. TODO: Update from a new uploaded file.
|
|
if (empty($sub->url)) {
|
|
return 'File subscription not updated.';
|
|
}
|
|
$ical = calendar_get_icalendar($sub->url);
|
|
$return = calendar_import_icalendar_events($ical, $sub->courseid, $subscriptionid);
|
|
$sub->lastupdated = time();
|
|
calendar_update_subscription($sub);
|
|
return $return;
|
|
}
|
|
|
|
/**
|
|
* Update a calendar subscription. Also updates the associated cache.
|
|
*
|
|
* @param stdClass|array $subscription Subscription record.
|
|
* @throws coding_exception If something goes wrong
|
|
* @since Moodle 2.5
|
|
*/
|
|
function calendar_update_subscription($subscription) {
|
|
global $DB;
|
|
|
|
if (is_array($subscription)) {
|
|
$subscription = (object)$subscription;
|
|
}
|
|
if (empty($subscription->id) || !$DB->record_exists('event_subscriptions', array('id' => $subscription->id))) {
|
|
throw new coding_exception('Cannot update a subscription without a valid id');
|
|
}
|
|
|
|
$DB->update_record('event_subscriptions', $subscription);
|
|
// Update cache.
|
|
$cache = cache::make('core', 'calendar_subscriptions');
|
|
$cache->set($subscription->id, $subscription);
|
|
}
|
|
|
|
/**
|
|
* Checks to see if the user can edit a given subscription feed.
|
|
*
|
|
* @param mixed $subscriptionorid Subscription object or id
|
|
* @return bool true if current user can edit the subscription else false
|
|
*/
|
|
function calendar_can_edit_subscription($subscriptionorid) {
|
|
global $DB;
|
|
|
|
if (is_array($subscriptionorid)) {
|
|
$subscription = (object)$subscriptionorid;
|
|
} else if (is_object($subscriptionorid)) {
|
|
$subscription = $subscriptionorid;
|
|
} else {
|
|
$subscription = calendar_get_subscription($subscriptionorid);
|
|
}
|
|
$allowed = new stdClass;
|
|
$courseid = $subscription->courseid;
|
|
$groupid = $subscription->groupid;
|
|
calendar_get_allowed_types($allowed, $courseid);
|
|
switch ($subscription->eventtype) {
|
|
case 'user':
|
|
return $allowed->user;
|
|
case 'course':
|
|
if (isset($allowed->courses[$courseid])) {
|
|
return $allowed->courses[$courseid];
|
|
} else {
|
|
return false;
|
|
}
|
|
case 'site':
|
|
return $allowed->site;
|
|
case 'group':
|
|
if (isset($allowed->groups[$groupid])) {
|
|
return $allowed->groups[$groupid];
|
|
} else {
|
|
return false;
|
|
}
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Update calendar subscriptions.
|
|
*
|
|
* @return bool
|
|
*/
|
|
function calendar_cron() {
|
|
global $CFG, $DB;
|
|
|
|
// In order to execute this we need bennu.
|
|
require_once($CFG->libdir.'/bennu/bennu.inc.php');
|
|
|
|
mtrace('Updating calendar subscriptions:');
|
|
cron_trace_time_and_memory();
|
|
|
|
$time = time();
|
|
$subscriptions = $DB->get_records_sql('SELECT * FROM {event_subscriptions} WHERE pollinterval > 0 AND lastupdated + pollinterval < ?', array($time));
|
|
foreach ($subscriptions as $sub) {
|
|
mtrace("Updating calendar subscription {$sub->name} in course {$sub->courseid}");
|
|
try {
|
|
$log = calendar_update_subscription_events($sub->id);
|
|
} catch (moodle_exception $ex) {
|
|
|
|
}
|
|
mtrace(trim(strip_tags($log)));
|
|
}
|
|
|
|
mtrace('Finished updating calendar subscriptions.');
|
|
|
|
return true;
|
|
}
|