group/grouping_form.php

   1 <?php
   2 /**
   3  * Create/Edit grouping form.
   4  *
   5  * @copyright &copy; 2006 The Open University
   6  * @author N.D.Freear AT open.ac.uk
   7  * @author J.White AT open.ac.uk
   8  * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
   9  * @package groups
  10  */
  11
  12 if (!defined('MOODLE_INTERNAL')) {
  13     die('Direct access to this script is forbidden.');    ///  It must be included from a Moodle page
  14 }
  15
  16 require_once($CFG->dirroot.'/lib/formslib.php');
  17
  18 /// get url variables
  19 class grouping_form extends moodleform {
  20
  21     // Define the form
  22     function definition () {
  23         global $USER, $CFG, $COURSE;
  24
  25         $mform =& $this->_form;
  26         $editoroptions = $this->_customdata['editoroptions'];
  27
  28         $mform->addElement('text','name', get_string('groupingname', 'group'),'maxlength="254" size="50"');
  29         $mform->addRule('name', get_string('required'), 'required', null, 'server');
  30         $mform->setType('name', PARAM_MULTILANG);
  31
  32         $mform->addElement('editor', 'description_editor', get_string('groupingdescription', 'group'), null, $editoroptions);
  33         $mform->setType('description_editor', PARAM_RAW);
  34
  35         $mform->addElement('hidden','id');
  36         $mform->setType('id', PARAM_INT);
  37
  38         $mform->addElement('hidden', 'courseid');
  39         $mform->setType('courseid', PARAM_INT);
  40
  41         $this->add_action_buttons();
  42     }
  43
  44     function validation($data, $files) {
  45         global $COURSE, $DB;
  46
  47         $errors = parent::validation($data, $files);
  48
  49         $textlib = textlib_get_instance();
  50
  51         $name = trim($data['name']);
  52         if ($data['id'] and $grouping = $DB->get_record('groupings', array('id'=>$data['id']))) {
  53             if ($textlib->strtolower($grouping->name) != $textlib->strtolower($name)) {
  54                 if (groups_get_grouping_by_name($COURSE->id,  $name)) {
  55                     $errors['name'] = get_string('groupingnameexists', 'group', $name);
  56                 }
  57             }
  58
  59         } else if (groups_get_grouping_by_name($COURSE->id, $name)) {
  60             $errors['name'] = get_string('groupingnameexists', 'group', $name);
  61         }
  62
  63         return $errors;
  64     }
  65
  66 }