moodle/admin/dst.php
2005-01-25 17:08:05 +00:00

242 lines
11 KiB
PHP

<?PHP // $Id$
// Allows the admin to configure DST presets
require_once('../config.php');
require_login();
if (!isadmin()) {
error('Only administrators can use this page!');
}
if (!$site = get_site()) {
error('Site isn\'t defined!');
}
include_once('../calendar/lib.php');
/// Print headings
$stradministration = get_string('administration');
$strconfiguration = get_string('configuration');
$strcalendarsettings = get_string('calendarsettings', 'admin');
$strcalendardstpresets = get_string('dstpresets', 'admin');
print_header("$site->shortname: $strcalendardstpresets", "$site->fullname",
"<a href=\"index.php\">$stradministration</a> -> ".
"<a href=\"configure.php\">$strconfiguration</a> -> ".
"<a href=\"calendar.php\">$strcalendarsettings</a> -> $strcalendardstpresets");
$mode = '';
$form = false;
// $action may instruct us to do something first, then go on to display the preset list
$action = optional_param('action', '');
switch($action) {
case 'delete':
$presetid = optional_param('preset', 0, PARAM_INT);
$preset = get_record('dst_preset', 'id', $presetid);
if($preset !== false) {
// First delete the preset
delete_records('dst_preset', 'id', $presetid);
// And then disable DST for all users who had selected that preset
execute_sql('UPDATE '.$CFG->prefix.'user_preferences SET value = 0 WHERE name = \'calendar_dstpreset\' AND value = '.$presetid, false);
}
break;
}
// $mode, on the other hand, may make us do something INSTEAD of displaying the preset list
if(($form = data_submitted()) && confirm_sesskey()) {
if(isset($form->result_cancel)) {
$mode = '';
}
else if(isset($form->mode_return)) {
redirect('calendar.php');
die();
}
else if(isset($form->mode_delete)) {
$mode = 'delete';
}
else if(isset($form->mode_editform)) {
// Present add/edit form
$mode = 'edit';
}
else if(isset($form->mode_edit)) {
// Fetch data for existing preset and display edit form
$presetid = optional_param('preset', 0, PARAM_INT);
$preset = get_record('dst_preset', 'id', $presetid);
if($preset !== false) {
// This variable used inside dst_edit.html
$weekdays = array(
-1 => get_string('day', 'calendar'),
0 => get_string('sunday', 'calendar'),
1 => get_string('monday', 'calendar'),
2 => get_string('tuesday', 'calendar'),
3 => get_string('wednesday', 'calendar'),
4 => get_string('thursday', 'calendar'),
5 => get_string('friday', 'calendar'),
6 => get_string('saturday', 'calendar')
);
$preset->apply_offset_sign = ($preset->apply_offset >= 0 ? 1 : -1);
$preset->apply_offset = abs($preset->apply_offset);
list($preset->activate_hour, $preset->activate_minute) = explode(':', $preset->activate_time);
list($preset->deactivate_hour, $preset->deactivate_minute) = explode(':', $preset->deactivate_time);
$mode = 'continueedit';
}
else {
$mode = '';
}
}
else if(isset($form->mode_add)) {
// Move to adding a new dst
$preset = new stdClass;
$preset->id = 0;
$mode = 'add';
}
// Normal configuration, just save the variables
else if(isset($form->adminseesallcourses)) {
set_config('calendar_adminseesall', intval($form->adminseesallcourses) != 0);
unset($SESSION->cal_courses_shown);
}
}
switch($mode) {
case 'delete':
$presetid = optional_param('preset', 0, PARAM_INT);
$preset = get_record('dst_preset', 'id', $presetid);
if($preset !== false) {
print_heading(get_string('confirmation', 'admin'));
if(!empty($CFG->calendar_dstforusers) && $preset->id == $CFG->calendar_dstforusers) {
notice_yesno(get_string('confirmdeletedstdefault', 'admin', $preset->name), 'dst.php?action=delete&amp;preset='.$presetid.'&amp;sesskey='.$USER->sesskey, 'dst.php?sesskey='.$USER->sesskey);
}
else {
notice_yesno(get_string('confirmdeletedst', 'admin', $preset->name), 'dst.php?action=delete&amp;preset='.$presetid.'&amp;sesskey='.$USER->sesskey, 'dst.php?sesskey='.$USER->sesskey);
}
}
else {
$mode = '';
}
break;
case 'edit':
// These variables are used inside dst_edit.html
$preset = new stdClass;
$preset->id = optional_param('preset', 0, PARAM_INT);
case 'add':
$preset->name = optional_param('name', get_string('dstdefaultpresetname', 'calendar'));
$preset->apply_offset = abs(optional_param('apply_offset', 60, PARAM_INT));
$preset->apply_offset_sign = min(max(optional_param('apply_offset_sign', 1, PARAM_INT), -1), 1);
$preset->activate_index = min(max(optional_param('activate_index', 1, PARAM_INT), -1), 1);
$preset->activate_day = min(max(optional_param('activate_day', 0, PARAM_INT), -1), 6);
$preset->activate_month = min(max(optional_param('activate_month', 1, PARAM_INT), 1), 12);
$preset->activate_hour = min(max(optional_param('activate_hour', 3, PARAM_INT), 0), 23);
$preset->activate_minute = min(max(optional_param('activate_minute', 0, PARAM_INT), 0), 59);
$preset->deactivate_index = min(max(optional_param('deactivate_index', 1, PARAM_INT), -1), 1);
$preset->deactivate_day = min(max(optional_param('deactivate_day', 0, PARAM_INT), -1), 6);
$preset->deactivate_month = min(max(optional_param('deactivate_month', 2, PARAM_INT), 1), 12);
$preset->deactivate_hour = min(max(optional_param('deactivate_hour', 3, PARAM_INT), 0), 23);
$preset->deactivate_minute = min(max(optional_param('deactivate_minute', 0, PARAM_INT), 0), 59);
$preset->apply_offset *= $preset->apply_offset_sign;
case 'continueedit':
if(!empty($form->result_ok)) {
// Complete the transaction
// Validation here
$errors = array();
if(empty($name)) {
$errors[] = get_string('errordstpresetnameempty', 'admin');
}
else {
$other = get_record('dst_preset', 'name', $preset->name);
if($preset->id != $other->id) {
$errors[] = get_string('errordstpresetnameexists', 'admin');
}
}
if($preset->activate_month >= $preset->deactivate_month) {
$errors[] = get_string('errordstpresetactivateearlier', 'admin');
}
// Are we error-free?
if(empty($errors)) {
// Calculate the last/next/current_offset variables
// WARNING: TODO: BUG: To calculate the timestamps, we are taking into account
// the admin's own DST setting. That means that if the admin changes his own DST
// setting and with this change his effective DST status changes, the timestamps
// will NOT be calculated correctly. Thus, the whole DST setting will be wrong
// for ALL USERS!
$preset = calendar_dst_update_preset($preset);
print_object("record is:");
print_object($preset);
print_object('The last change time (DST) was: '.strftime('%A, %d %B %Y %H:%M', $preset->last_change));
print_object('The last change time (user) was: '.userdate($preset->last_change));
print_object('The next change time (DST) is : '.strftime('%A, %d %B %Y %H:%M', $preset->next_change));
print_object('The next change time (user) is : '.userdate($preset->next_change));
// Write it!
if($preset->id) {
print_object("UPDATED!");
update_record('dst_preset', $preset);
}
else {
print_object("INSERT!");
insert_record('dst_preset', $preset);
}
echo '<a href="dst.php">Proceed</a>';
die();
}
else {
print_simple_box_start('center', '70%', '#cc0000');
echo '<div style="color: #fff;"><div style="font-weight: bold; text-align: center;">'.get_string('therewereerrors', 'admin').':</div>';
echo '<ul>';
foreach($errors as $error) {
echo '<li>'.$error.'</li>';
}
echo '</ul></div>';
print_simple_box_end();
}
}
// Show the edit screen
$weekdays = array(
-1 => get_string('day', 'calendar'),
0 => get_string('sunday', 'calendar'),
1 => get_string('monday', 'calendar'),
2 => get_string('tuesday', 'calendar'),
3 => get_string('wednesday', 'calendar'),
4 => get_string('thursday', 'calendar'),
5 => get_string('friday', 'calendar'),
6 => get_string('saturday', 'calendar')
);
print_heading(get_string('editingdstpreset', 'admin'));
print_simple_box_start('center', '70%');
include('./dst_edit.html');
print_simple_box_end();
break;
}
// Default behavior here
if(empty($mode)) {
$presets = get_records('dst_preset', '', '', 'name');
if(!empty($presets)) {
$presetdescriptions = array();
foreach($presets as $id => $preset) {
$presetdescriptions[$id] = calendar_human_readable_dst($preset);
}
}
print_heading($strcalendardstpresets);
print_simple_box_start('center', '70%');
include('./dst.html');
print_simple_box_end();
}
print_footer();
?>