cohort/assign.php

   1 <?php
   2
   3 // This file is part of Moodle - http://moodle.org/
   4 //
   5 // Moodle is free software: you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation, either version 3 of the License, or
   8 // (at your option) any later version.
   9 //
  10 // Moodle is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License
  16 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 /**
  19  * Cohort related management functions, this file needs to be included manually.
  20  *
  21  * @package    core
  22  * @subpackage cohort
  23  * @copyright  2010 Petr Skoda  {@link http://skodak.org}
  24  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  25  */
  26
  27 require_once('../config.php');
  28 require_once($CFG->dirroot.'/cohort/lib.php');
  29
  30 $id = required_param('id', PARAM_INT);
  31
  32 require_login();
  33
  34 $cohort = $DB->get_record('cohort', array('id'=>$id), '*', MUST_EXIST);
  35 $context = get_context_instance_by_id($cohort->contextid, MUST_EXIST);
  36
  37 require_capability('moodle/cohort:assign', $context);
  38
  39 $PAGE->set_context($context);
  40 $PAGE->set_url('/cohort/assign.php', array('id'=>$id));
  41
  42 $returnurl = new moodle_url('/cohort/index.php', array('contextid'=>$cohort->contextid));
  43
  44 if (!empty($cohort->component)) {
  45     // we can not manually edit cohorts that were created by external systems, sorry
  46     redirect($returnurl);
  47 }
  48
  49 if (optional_param('cancel', false, PARAM_BOOL)) {
  50     redirect($returnurl);
  51 }
  52
  53 if ($context->contextlevel == CONTEXT_COURSECAT) {
  54     $category = $DB->get_record('course_categories', array('id'=>$context->instanceid), '*', MUST_EXIST);
  55     $PAGE->navbar->add($category->name, new moodle_url('/course/index.php', array('categoryedit'=>'1')));
  56 }
  57 $PAGE->navbar->add(get_string('cohorts', 'cohort'), new moodle_url('/cohort/', array('contextid'=>$context->id)));
  58 $PAGE->navbar->add(get_string('assign', 'cohort'));
  59 $PAGE->set_title(get_string('cohort:assign', 'cohort'));
  60 $PAGE->set_heading($COURSE->fullname);
  61
  62 echo $OUTPUT->header();
  63 echo $OUTPUT->heading(get_string('assignto', 'cohort', format_string($cohort->name)));
  64
  65 // Get the user_selector we will need.
  66 $potentialuserselector = new cohort_candidate_selector('addselect', array('cohortid'=>$cohort->id));
  67 $existinguserselector = new cohort_existing_selector('removeselect', array('cohortid'=>$cohort->id));
  68
  69 // Process incoming user assignments to the cohort
  70
  71 if (optional_param('add', false, PARAM_BOOL) && confirm_sesskey()) {
  72     $userstoassign = $potentialuserselector->get_selected_users();
  73     if (!empty($userstoassign)) {
  74
  75         foreach ($userstoassign as $adduser) {
  76             // no duplicates please
  77             if (!$DB->record_exists('cohort_members', array('cohortid'=>$cohort->id, 'userid'=>$adduser->id))) {
  78                 cohort_add_member($cohort->id, $adduser->id);
  79             }
  80         }
  81
  82         $potentialuserselector->invalidate_selected_users();
  83         $existinguserselector->invalidate_selected_users();
  84     }
  85 }
  86
  87 // Process removing user assignments to the cohort
  88 if (optional_param('remove', false, PARAM_BOOL) && confirm_sesskey()) {
  89     $userstoremove = $existinguserselector->get_selected_users();
  90     if (!empty($userstoremove)) {
  91         foreach ($userstoremove as $removeuser) {
  92             cohort_remove_member($cohort->id, $removeuser->id);
  93         }
  94         $potentialuserselector->invalidate_selected_users();
  95         $existinguserselector->invalidate_selected_users();
  96     }
  97 }
  98
  99 // Print the form.
 100 ?>
 101 <form id="assignform" method="post" action="<?php echo $PAGE->url ?>"><div>
 102   <input type="hidden" name="sesskey" value="<?php echo sesskey() ?>" />
 103
 104   <table summary="" class="generaltable generalbox boxaligncenter" cellspacing="0">
 105     <tr>
 106       <td id="existingcell">
 107           <p><label for="removeselect"><?php print_string('currentusers', 'cohort'); ?></label></p>
 108           <?php $existinguserselector->display() ?>
 109       </td>
 110       <td id="buttonscell">
 111           <div id="addcontrols">
 112               <input name="add" id="add" type="submit" value="<?php echo $OUTPUT->larrow().'&nbsp;'.s(get_string('add')); ?>" title="<?php p(get_string('add')); ?>" /><br />
 113           </div>
 114
 115           <div id="removecontrols">
 116               <input name="remove" id="remove" type="submit" value="<?php echo s(get_string('remove')).'&nbsp;'.$OUTPUT->rarrow(); ?>" title="<?php p(get_string('remove')); ?>" />
 117           </div>
 118       </td>
 119       <td id="potentialcell">
 120           <p><label for="addselect"><?php print_string('potusers', 'cohort'); ?></label></p>
 121           <?php $potentialuserselector->display() ?>
 122       </td>
 123     </tr>
 124     <tr><td colspan="3" id='backcell'>
 125       <input type="submit" name="cancel" value="<?php p(get_string('backtocohorts', 'cohort')); ?>" />
 126     </td></tr>
 127   </table>
 128 </div></form>
 129
 130 <?php
 131
 132 echo $OUTPUT->footer();