Proyectos de Subversion Moodle

<?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/>.

/**

 * This page handles editing and creation of lesson overrides

 *

 * @package   mod_lesson

 * @copyright 2015 Jean-Michel Vedrine

 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 */

require_once(__DIR__ . '/../../config.php');

require_once($CFG->dirroot.'/mod/lesson/lib.php');

require_once($CFG->dirroot.'/mod/lesson/locallib.php');

require_once($CFG->dirroot.'/mod/lesson/override_form.php');

$cmid = optional_param('cmid', 0, PARAM_INT);

$overrideid = optional_param('id', 0, PARAM_INT);

$action = optional_param('action', null, PARAM_ALPHA);

$reset = optional_param('reset', false, PARAM_BOOL);

$override = null;

if ($overrideid) {

    if (! $override = $DB->get_record('lesson_overrides', array('id' => $overrideid))) {

        throw new \moodle_exception('invalidoverrideid', 'lesson');

    }

    $lesson = new lesson($DB->get_record('lesson', array('id' => $override->lessonid), '*',  MUST_EXIST));

    list($course, $cm) = get_course_and_cm_from_instance($lesson, 'lesson');

} else if ($cmid) {

    list($course, $cm) = get_course_and_cm_from_cmid($cmid, 'lesson');

    $lesson = new lesson($DB->get_record('lesson', array('id' => $cm->instance), '*', MUST_EXIST));

} else {

    throw new \moodle_exception('invalidcoursemodule');

}

$course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);

$url = new moodle_url('/mod/lesson/overrideedit.php');

if ($action) {

    $url->param('action', $action);

}

if ($overrideid) {

    $url->param('id', $overrideid);

} else {

    $url->param('cmid', $cmid);

}

$PAGE->set_url($url);

require_login($course, false, $cm);

$context = context_module::instance($cm->id);

// Add or edit an override.

require_capability('mod/lesson:manageoverrides', $context);

if ($overrideid) {

    // Editing an override.

    $data = clone $override;

    if ($override->groupid) {

        if (!groups_group_visible($override->groupid, $course, $cm)) {

            throw new \moodle_exception('invalidoverrideid', 'lesson');

        }

    } else {

        if (!groups_user_groups_visible($course, $override->userid, $cm)) {

            throw new \moodle_exception('invalidoverrideid', 'lesson');

        }

    }

} else {

    // Creating a new override.

    $data = new stdClass();

}

// Merge lesson defaults with data.

$keys = array('available', 'deadline', 'review', 'timelimit', 'maxattempts', 'retake', 'password');

foreach ($keys as $key) {

    if (!isset($data->{$key}) || $reset) {

        $data->{$key} = $lesson->{$key};

    }

}

// True if group-based override.

$groupmode = !empty($data->groupid) || ($action === 'addgroup' && empty($overrideid));

// If we are duplicating an override, then clear the user/group and override id

// since they will change.

if ($action === 'duplicate') {

    $override->id = $data->id = null;

    $override->userid = $data->userid = null;

    $override->groupid = $data->groupid = null;

}

$overridelisturl = new moodle_url('/mod/lesson/overrides.php', array('cmid' => $cm->id));

if (!$groupmode) {

    $overridelisturl->param('mode', 'user');

}

// Setup the form.

$mform = new lesson_override_form($url, $cm, $lesson, $context, $groupmode, $override);

$mform->set_data($data);

if ($mform->is_cancelled()) {

    redirect($overridelisturl);

} else if (optional_param('resetbutton', 0, PARAM_ALPHA)) {

    $url->param('reset', true);

    redirect($url);

} else if ($fromform = $mform->get_data()) {

    // Process the data.

    $fromform->lessonid = $lesson->id;

    // Replace unchanged values with null.

    foreach ($keys as $key) {

        if ($fromform->{$key} == $lesson->{$key}) {

            $fromform->{$key} = null;

        }

    }

    // See if we are replacing an existing override.

    $userorgroupchanged = false;

    if (empty($override->id)) {

        $userorgroupchanged = true;

    } else if (!empty($fromform->userid)) {

        $userorgroupchanged = $fromform->userid !== $override->userid;

    } else {

        $userorgroupchanged = $fromform->groupid !== $override->groupid;

    }

    if ($userorgroupchanged) {

        $conditions = array(

                'lessonid' => $lesson->id,

                'userid' => empty($fromform->userid) ? null : $fromform->userid,

                'groupid' => empty($fromform->groupid) ? null : $fromform->groupid);

        if ($oldoverride = $DB->get_record('lesson_overrides', $conditions)) {

            // There is an old override, so we merge any new settings on top of

            // the older override.

            foreach ($keys as $key) {

                if (is_null($fromform->{$key})) {

                    $fromform->{$key} = $oldoverride->{$key};

                }

            }

            $lesson->delete_override($oldoverride->id);

        }

    }

    // Set the common parameters for one of the events we may be triggering.

    $params = array(

        'context' => $context,

        'other' => array(

            'lessonid' => $lesson->id

        )

    );

    if (!empty($override->id)) {

        $fromform->id = $override->id;

        $DB->update_record('lesson_overrides', $fromform);

        $cachekey = $groupmode ? "{$fromform->lessonid}_g_{$fromform->groupid}" : "{$fromform->lessonid}_u_{$fromform->userid}";

        cache::make('mod_lesson', 'overrides')->delete($cachekey);

        // Determine which override updated event to fire.

        $params['objectid'] = $override->id;

        if (!$groupmode) {

            $params['relateduserid'] = $fromform->userid;

            $event = \mod_lesson\event\user_override_updated::create($params);

        } else {

            $params['other']['groupid'] = $fromform->groupid;

            $event = \mod_lesson\event\group_override_updated::create($params);

        }

        // Trigger the override updated event.

        $event->trigger();

    } else {

        unset($fromform->id);

        $fromform->id = $DB->insert_record('lesson_overrides', $fromform);

        $cachekey = $groupmode ? "{$fromform->lessonid}_g_{$fromform->groupid}" : "{$fromform->lessonid}_u_{$fromform->userid}";

        cache::make('mod_lesson', 'overrides')->delete($cachekey);

        // Determine which override created event to fire.

        $params['objectid'] = $fromform->id;

        if (!$groupmode) {

            $params['relateduserid'] = $fromform->userid;

            $event = \mod_lesson\event\user_override_created::create($params);

        } else {

            $params['other']['groupid'] = $fromform->groupid;

            $event = \mod_lesson\event\group_override_created::create($params);

        }

        // Trigger the override created event.

        $event->trigger();

    }

    if ($groupmode) {

        // Priorities may have shifted, so we need to update all of the calendar events for group overrides.

        lesson_update_events($lesson);

    } else {

        // User override. We only need to update the calendar event for this user override.

        lesson_update_events($lesson, $fromform);

    }

    if (!empty($fromform->submitbutton)) {

        redirect($overridelisturl);

    }

    // The user pressed the 'again' button, so redirect back to this page.

    $url->remove_params('cmid');

    $url->param('action', 'duplicate');

    $url->param('id', $fromform->id);

    redirect($url);

}

// Print the form.

$pagetitle = get_string('editoverride', 'lesson');

$PAGE->navbar->add($pagetitle);

$PAGE->set_pagelayout('admin');

$PAGE->set_secondary_active_tab('mod_lesson_useroverrides');

$PAGE->add_body_class('limitedwidth');

$PAGE->set_title($pagetitle);

$PAGE->set_heading($course->fullname);

echo $OUTPUT->header();

echo $OUTPUT->heading(format_string($lesson->name, true, array('context' => $context)));

$mform->display();

echo $OUTPUT->footer();