Proyectos de Subversion Moodle

<?php

// This file is part of the customcert module for 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 file contains the customcert element teachername's core interaction API.

 *

 * @package    customcertelement_teachername

 * @copyright  2013 Mark Nelson <markn@moodle.com>

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

 */

namespace customcertelement_teachername;

/**

 * The customcert element teachername's core interaction API.

 *

 * @package    customcertelement_teachername

 * @copyright  2013 Mark Nelson <markn@moodle.com>

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

 */

class element extends \mod_customcert\element {

    /**

     * This function renders the form elements when adding a customcert element.

     *

     * @param \MoodleQuickForm $mform the edit_form instance

     */

    public function render_form_elements($mform) {

        $mform->addElement('select', 'teacher', get_string('teacher', 'customcertelement_teachername'),

            $this->get_list_of_teachers());

        $mform->addHelpButton('teacher', 'teacher', 'customcertelement_teachername');

        parent::render_form_elements($mform);

    }

    /**

     * This will handle how form data will be saved into the data column in the

     * customcert_elements table.

     *

     * @param \stdClass $data the form data

     * @return string the text

     */

    public function save_unique_data($data) {

        if (!empty($data->teacher)) {

            return $data->teacher;

        }

    }

    /**

     * Handles rendering the element on the pdf.

     *

     * @param \pdf $pdf the pdf object

     * @param bool $preview true if it is a preview, false otherwise

     * @param \stdClass $user the user we are rendering this for

     */

    public function render($pdf, $preview, $user) {

        global $DB;

        $teacher = $DB->get_record('user', ['id' => $this->get_data()]);

        $teachername = fullname($teacher);

        \mod_customcert\element_helper::render_content($pdf, $this, $teachername);

    }

    /**

     * Render the element in html.

     *

     * This function is used to render the element when we are using the

     * drag and drop interface to position it.

     *

     * @return string the html

     */

    public function render_html() {

        global $DB;

        $teacher = $DB->get_record('user', ['id' => $this->get_data()]);

        $teachername = fullname($teacher);

        return \mod_customcert\element_helper::render_html_content($this, $teachername);

    }

    /**

     * Helper function to return the teachers for this course.

     *

     * @return array the list of teachers

     */

    protected function get_list_of_teachers() {

        global $PAGE;

        // Return early if we are in a site template.

        if ($PAGE->context->id == \context_system::instance()->id) {

            return [];

        }

        // The list of teachers to return.

        $teachers = [];

        // Now return all users who can manage the customcert in this context.

        if ($users = get_enrolled_users($PAGE->context, 'mod/customcert:manage')) {

            foreach ($users as $user) {

                $teachers[$user->id] = fullname($user);

            }

        }

        return $teachers;

    }

    /**

     * Sets the data on the form when editing an element.

     *

     * @param \MoodleQuickForm $mform the edit_form instance

     */

    public function definition_after_data($mform) {

        if (!empty($this->get_data())) {

            $element = $mform->getElement('teacher');

            $element->setValue($this->get_data());

        }

        parent::definition_after_data($mform);

    }

}