moodle/enrol/meta/addinstance_form.php

98 lines
3.7 KiB
PHP

<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle 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 3 of the License, or
// (at your option) any later version.
//
// Moodle 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.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Adds instance form
*
* @package enrol
* @subpackage meta
* @copyright 2010 Petr Skoda {@link http://skodak.org}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
require_once("$CFG->libdir/formslib.php");
class enrol_meta_addinstance_form extends moodleform {
protected $course;
function definition() {
global $CFG, $DB;
$mform = $this->_form;
$course = $this->_customdata;
$this->course = $course;
$existing = $DB->get_records('enrol', array('enrol'=>'meta', 'courseid'=>$course->id), '', 'customint1, id');
// TODO: this has to be done via ajax or else it will fail very badly on large sites!
$courses = array('' => get_string('choosedots'));
$rs = $DB->get_recordset('course', array(), 'sortorder ASC', 'id, fullname, shortname, visible');
foreach ($rs as $c) {
if ($c->id == SITEID or $c->id == $course->id or isset($existing[$c->id])) {
continue;
}
$coursecontext = get_context_instance(CONTEXT_COURSE, $c->id);
if (!$c->visible and !has_capability('moodle/course:viewhiddencourses', $coursecontext)) {
continue;
}
if (!has_capability('enrol/meta:selectaslinked', $coursecontext)) {
continue;
}
$courses[$c->id] = format_string($c->fullname). ' ['.$c->shortname.']';
}
$rs->close();
$mform->addElement('header','general', get_string('pluginname', 'enrol_meta'));
$mform->addElement('select', 'link', get_string('linkedcourse', 'enrol_meta'), $courses);
$mform->addRule('link', get_string('required'), 'required', null, 'client');
$mform->addElement('hidden', 'id', null);
$mform->setType('id', PARAM_INT);
$this->add_action_buttons(true, get_string('addinstance', 'enrol'));
$this->set_data(array('id'=>$course->id));
}
function validation($data, $files) {
global $DB, $CFG;
// TODO: this is duplicated here because it may be necessary one we implement ajax course selection element
$errors = parent::validation($data, $files);
if (!$c = $DB->get_record('course', array('id'=>$data['link']))) {
$errors['link'] = get_string('required');
} else {
$coursecontext = get_context_instance(CONTEXT_COURSE, $c->id);
$existing = $DB->get_records('enrol', array('enrol'=>'meta', 'courseid'=>$this->course->id), '', 'customint1, id');
if (!$c->visible and !has_capability('moodle/course:viewhiddencourses', $coursecontext)) {
$errors['link'] = get_string('error');
} else if (!has_capability('enrol/meta:selectaslinked', $coursecontext)) {
$errors['link'] = get_string('error');
} else if ($c->id == SITEID or $c->id == $this->course->id or isset($existing[$c->id])) {
$errors['link'] = get_string('error');
}
}
return $errors;
}
}