enrol/cohort/edit_form.php

   1 <?php
   2 // This file is part of Moodle - http://moodle.org/
   3 //
   4 // Moodle is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation, either version 3 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // Moodle is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU General Public License
  15 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 /**
  18  * Adds instance form
  19  *
  20  * @package    enrol_cohort
  21  * @copyright  2010 Petr Skoda {@link http://skodak.org}
  22  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23  */
  24
  25 defined('MOODLE_INTERNAL') || die();
  26
  27 require_once("$CFG->libdir/formslib.php");
  28
  29 class enrol_cohort_edit_form extends moodleform {
  30
  31     function definition() {
  32         global $CFG, $DB;
  33
  34         $mform  = $this->_form;
  35
  36         list($instance, $plugin, $course) = $this->_customdata;
  37         $coursecontext = context_course::instance($course->id);
  38
  39         $enrol = enrol_get_plugin('cohort');
  40
  41
  42         $groups = array(0 => get_string('none'));
  43         foreach (groups_get_all_groups($course->id) as $group) {
  44             $groups[$group->id] = format_string($group->name, true, array('context'=>$coursecontext));
  45         }
  46
  47         $mform->addElement('header','general', get_string('pluginname', 'enrol_cohort'));
  48
  49         $mform->addElement('text', 'name', get_string('custominstancename', 'enrol'));
  50         $mform->setType('name', PARAM_TEXT);
  51
  52         $options = array(ENROL_INSTANCE_ENABLED  => get_string('yes'),
  53                          ENROL_INSTANCE_DISABLED => get_string('no'));
  54         $mform->addElement('select', 'status', get_string('status', 'enrol_cohort'), $options);
  55
  56         if ($instance->id) {
  57             if ($cohort = $DB->get_record('cohort', array('id'=>$instance->customint1))) {
  58                 $cohorts = array($instance->customint1=>format_string($cohort->name, true, array('context'=>context::instance_by_id($cohort->contextid))));
  59             } else {
  60                 $cohorts = array($instance->customint1=>get_string('error'));
  61             }
  62             $mform->addElement('select', 'customint1', get_string('cohort', 'cohort'), $cohorts);
  63             $mform->setConstant('customint1', $instance->customint1);
  64             $mform->hardFreeze('customint1', $instance->customint1);
  65
  66         } else {
  67             $cohorts = array('' => get_string('choosedots'));
  68             list($sqlparents, $params) = $DB->get_in_or_equal($coursecontext->get_parent_context_ids());
  69             $sql = "SELECT id, name, idnumber, contextid
  70                       FROM {cohort}
  71                      WHERE contextid $sqlparents
  72                   ORDER BY name ASC, idnumber ASC";
  73             $rs = $DB->get_recordset_sql($sql, $params);
  74             foreach ($rs as $c) {
  75                 $context = context::instance_by_id($c->contextid);
  76                 if (!has_capability('moodle/cohort:view', $context)) {
  77                     continue;
  78                 }
  79                 $cohorts[$c->id] = format_string($c->name);
  80             }
  81             $rs->close();
  82             $mform->addElement('select', 'customint1', get_string('cohort', 'cohort'), $cohorts);
  83             $mform->addRule('customint1', get_string('required'), 'required', null, 'client');
  84         }
  85
  86         $roles = get_assignable_roles($coursecontext);
  87         $roles[0] = get_string('none');
  88         $roles = array_reverse($roles, true); // Descending default sortorder.
  89         $mform->addElement('select', 'roleid', get_string('assignrole', 'enrol_cohort'), $roles);
  90         $mform->setDefault('roleid', $enrol->get_config('roleid'));
  91         if ($instance->id and !isset($roles[$instance->roleid])) {
  92             if ($role = $DB->get_record('role', array('id'=>$instance->roleid))) {
  93                 $roles = role_fix_names($roles, $coursecontext, ROLENAME_ALIAS, true);
  94                 $roles[$instance->roleid] = role_get_name($role, $coursecontext);
  95             } else {
  96                 $roles[$instance->roleid] = get_string('error');
  97             }
  98         }
  99         $mform->addElement('select', 'customint2', get_string('addgroup', 'enrol_cohort'), $groups);
 100
 101         $mform->addElement('hidden', 'courseid', null);
 102         $mform->setType('courseid', PARAM_INT);
 103
 104         $mform->addElement('hidden', 'id', null);
 105         $mform->setType('id', PARAM_INT);
 106
 107         if ($instance->id) {
 108             $this->add_action_buttons(true);
 109         } else {
 110             $this->add_action_buttons(true, get_string('addinstance', 'enrol'));
 111         }
 112
 113         $this->set_data($instance);
 114     }
 115
 116     function validation($data, $files) {
 117         global $DB;
 118
 119         $errors = parent::validation($data, $files);
 120
 121         $params = array('roleid'=>$data['roleid'], 'customint1'=>$data['customint1'], 'courseid'=>$data['courseid'], 'id'=>$data['id']);
 122         if ($DB->record_exists_select('enrol', "roleid = :roleid AND customint1 = :customint1 AND courseid = :courseid AND enrol = 'cohort' AND id <> :id", $params)) {
 123             $errors['roleid'] = get_string('instanceexists', 'enrol_cohort');
 124         }
 125
 126         return $errors;
 127     }
 128 }