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moodle/course/groups.php
Martin Langhoff f3f7610c90 cvsimport fixups -- cvshead had strayed from upstream
2007-01-04 13:15:04 +13:00

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<?php // $Id$
///////////////////////////////////////////////////////////////////////////
// //
// NOTICE OF COPYRIGHT //
// //
// Moodle - Modular Object-Oriented Dynamic Learning Environment //
// http://moodle.org //
// //
// Copyright (C) 1999-2004 Martin Dougiamas http://dougiamas.com //
// //
// This program is free software; you can redistribute it and/or modify //
// it under the terms of the GNU General Public License as published by //
// the Free Software Foundation; either version 2 of the License, or //
// (at your option) any later version. //
// //
// This program is distributed in the hope that it will be useful, //
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
// GNU General Public License for more details: //
// //
// http://www.gnu.org/copyleft/gpl.html //
// //
///////////////////////////////////////////////////////////////////////////
/// Editing interface to edit all the groups in a course
require_once('../config.php');
require_once('lib.php');
$courseid = required_param('id', PARAM_INT); // Course id
$selectedgroup = optional_param('group', NULL, PARAM_INT); // Current group id
$roleid = optional_param('roleid', 0, PARAM_INT); // Current role id
if (! $course = get_record('course', 'id', $courseid) ) {
error("That's an invalid course id");
}
require_login($course->id);
$context = get_context_instance(CONTEXT_COURSE, $course->id);
if (!has_capability('moodle/course:managegroups', $context)) {
redirect("group.php?id=$course->id"); // Not allowed to see all groups
}
/// Get the current list of groups and check the selection is valid
$groups = get_groups($course->id);
if ($selectedgroup and !isset($groups[$selectedgroup])) {
$selectedgroup = NULL;
}
/// Print the header of the page
$strgroup = get_string('group');
$strgroups = get_string('groups');
$streditgroupprofile = get_string('editgroupprofile');
$strgroupmembers = get_string('groupmembers');
$strgroupmemberssee = get_string('groupmemberssee');
$strparticipants = get_string('participants');
print_header("$course->shortname: $strgroups", "$course->fullname",
"<a href=\"$CFG->wwwroot/course/view.php?id=$course->id\">$course->shortname</a> ".
"-> <a href=\"$CFG->wwwroot/user/index.php?id=$course->id\">$strparticipants</a> ".
"-> $strgroups", "", "", true, '', user_login_string($course, $USER));
/// First, process any inputs there may be.
if ($data = data_submitted() and confirm_sesskey()) {
// Clean ALL incoming parameters which go in SQL queries here for good measure
$data->id = required_param('id', PARAM_INT);
$data->groups = optional_param('groups', 0, PARAM_INT);
$data->groupid = optional_param('groupid', 0, PARAM_INT);
$data->members = optional_param('members', array(), PARAM_INT);
if (!empty($data->nonmembersadd)) { /// Add people to a group
if (!empty($data->nonmembers) and !empty($data->groupid)) {
$groupmodified = false;
foreach ($data->nonmembers as $userid) {
//since we allow people to be in more than 1 group, this has to go.
if (!ismember($data->groupid,$userid)) {// Just to make sure (another teacher could be editing)
$record->groupid = $data->groupid;
$record->userid = $userid;
$record->timeadded = time();
if (!insert_record('groups_members', $record)) {
notify("Error occurred while adding user $userid to group $data->groupid");
}
$groupmodified = true;
}
}
if ($groupmodified) {
set_field('groups', 'timemodified', time(), 'id', $data->groupid);
}
}
$selectedgroup = $data->groupid;
} else if (!empty($data->nonmembersrandom)) { /// Add all non members to groups
notify("Random adding of people into groups is not functional yet.");
} else if (!empty($data->nonmembersinfo)) { /// Return info about the selected users
notify("You must turn Javascript on");
} else if (!empty($data->groupsremove)) { /// Remove a group, all members become nonmembers
if (!empty($data->groups)) {
if(!isset($groups[$data->groups])) {
error("This is not a valid group to remove");
}
delete_records("groups", "id", $data->groups);
delete_records("groups_members", "groupid", $data->groups);
unset($groups[$data->groups]);
}
} else if (!empty($data->groupsinfo)) { /// Display full info for a group
notify("You must turn Javascript on");
} else if (!empty($data->groupsadd)) { /// Create a new group
if (!empty($data->newgroupname)) {
$newgroup->name = $data->newgroupname;
$newgroup->courseid = $course->id;
$newgroup->lang = current_language();
$newgroup->timecreated = time();
$newgroup->description = ''; // can not be null MDL-7300
if (!insert_record("groups", $newgroup)) {
notify("Could not insert the new group '$newgroup->name'");
}
$groups = get_groups($course->id);
}
} else if (!empty($data->membersremove)) { /// Remove selected people from a particular group
if (!empty($data->members) and !empty($data->groupid)) {
foreach ($data->members as $userid) {
delete_records('groups_members', 'userid', $userid, "groupid", $data->groupid);
}
set_field('groups', 'timemodified', time(), 'id', $data->groupid);
}
$selectedgroup = $data->groupid;
} else if (!empty($data->membersinfo)) { /// Return info about the selected users
notify("You must turn Javascript on");
}
}
/// Calculate data ready to create the editing interface
$strmemberincourse = get_string('memberincourse');
$strgroupnonmembers = get_string('groupnonmembers');
$strgroupmembersselected = get_string('groupmembersselected');
$strgroupremovemembers = get_string('groupremovemembers');
$strgroupinfomembers = get_string('groupinfomembers');
$strgroupadd = get_string('groupadd');
$strgroupremove = get_string('groupremove');
$strgroupinfo = get_string('groupinfo');
$strgroupinfoedit = get_string('groupinfoedit');
$strgroupinfopeople = get_string('groupinfopeople');
$strgrouprandomassign = get_string('grouprandomassign');
$strgroupaddusers = get_string('groupaddusers');
$courseid = $course->id;
$listgroups = array();
$listmembers = array();
$nonmembers = array();
$groupcount = count($groups);
/// First, get everyone into the nonmembers array
if ($contextusers = get_role_users($roleid, $context)) {
foreach ($contextusers as $contextuser) {
$nonmembers[$contextuser->id] = fullname($contextuser, true);
}
}
unset($contextusers);
/// Pull out all the members into little arrays
if ($groups) {
foreach ($groups as $group) {
$countusers = 0;
$listmembers[$group->id] = array();
if ($groupusers = get_group_users($group->id, 'u.lastname ASC, u.firstname ASC')) {
foreach ($groupusers as $key=>$groupuser) {
if (!array_key_exists($groupuser->id, $nonmembers)) {
// group member with another role
unset($groupusers[$key]);
} else {
$listmembers[$group->id][$groupuser->id] = $nonmembers[$groupuser->id];
//we do not remove people from $nonmembers, everyone is displayed
//this is to enable people to be registered in multiple groups
//unset($nonmembers[$groupuser->id]);
$countusers++;
}
}
}
$listgroups[$group->id] = $group->name." ($countusers)";
}
natcasesort($listgroups);
}
if (empty($selectedgroup)) { // Choose the first group by default
if ($selectedgroup = array_shift($temparr = array_keys($listgroups))) {
$members = $listmembers[$selectedgroup];
}
} else {
$members = $listmembers[$selectedgroup];
}
$sesskey = !empty($USER->id) ? $USER->sesskey : '';
//DONOTCOMMIT: TODO:
if (debugging()) {
echo '<p>[ <a href="../group/groupui/?id='. $courseid .'">AJAX groups</a>
| <a href="../group/index.php?id='. $courseid .'">New groups</a> - debugging.]</p>';
}
/// Print out the complete form
print_heading(get_string('groups'));
include('groups-edit.html');
print_footer($course);
?>
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