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/>.

/**

 * Defines the custom messaging form

 *

 * @package    block_messageteacher

 * @author      Mark Johnson <mark@barrenfrozenwasteland.com>

 * @copyright   2013 Mark Johnson

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

 */

namespace block_messageteacher;

use context;

use moodle_url;

defined('MOODLE_INTERNAL') || die();

require_once($CFG->libdir . '/formslib.php');

/**

 * Custom messaging form.

 *

 * @copyright  2013 Mark Johnson

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

 */

class message_form extends \core_form\dynamic_form {

    protected function get_context_for_dynamic_submission(): context {

        if ($contextid = $this->optional_param('contextid', null, PARAM_INT)) {

            return \context::instance_by_id($contextid, MUST_EXIST);

        } else {

            $courseid = $this->optional_param('courseid', null, PARAM_INT);

            return \context_course::instance($courseid);

        }

    }

    public function set_data_for_dynamic_submission(): void {

        global $DB;

        $this->set_data([

            'recipientid' => $this->optional_param('recipientid', null, PARAM_INT),

            'referurl' => $this->optional_param('referurl', null, PARAM_URL),

            'courseid' => $this->optional_param('courseid', null, PARAM_INT)

        ]);

    }

    protected function check_access_for_dynamic_submission(): void {

        require_capability('moodle/site:sendmessage', $this->get_context_for_dynamic_submission());

    }

    protected function get_page_url_for_dynamic_submission(): moodle_url {

        return new moodle_url($this->optional_param('referurl', null, PARAM_URL));

    }

    public function process_dynamic_submission() {

        return $this->process($this->get_data());

    }

    /**

     * Define the form.

     */

    public function definition() {

        $mform = $this->_form;

        $mform->disable_form_change_checker();

        $strrequired = get_string('required');

        $mform->addElement('textarea',

                            'message',

                            get_string('messagetext', 'block_messageteacher'),

                            array('rows' => 6, 'cols' => 60));

        $mform->setType('message', PARAM_TEXT);

        $mform->addRule('message', $strrequired, 'required', null, 'client');

        $mform->addElement('hidden', 'referurl');

        $mform->setType('referurl', PARAM_URL);

        $mform->addElement('hidden', 'recipientid');

        $mform->setType('recipientid', PARAM_INT);

        $mform->addElement('hidden', 'courseid');

        $mform->setType('courseid', PARAM_INT);

        if (empty($this->_ajaxformdata)) {

            $mform->addElement('submit', 'send', get_string('send', 'block_messageteacher'));

        }

    }

    public function definition_after_data() {

        global $DB;

        $mform = $this->_form;

        $recipientid = $mform->getElementValue('recipientid');

        $recipient = $DB->get_record('user', ['id' => $recipientid], '*', MUST_EXIST);

        $header = $mform->createElement('header', 'messsageheader',

                get_string('messageheader', 'block_messageteacher', fullname($recipient)));

        $mform->insertElementBefore($header, 'message');

    }

    /**

     * Validate and send the message.

     *

     * @param \stdClass $data Form data

     * @return true

     */

    public function process($data) {

        global $DB, $USER, $COURSE;

        if (!$recipient = $DB->get_record('user', array('id' => $data->recipientid))) {

            throw new no_recipient_exception($data->recipientid);

        }

        $appendurl = get_config('block_messageteacher', 'appendurl');

        if ($appendurl) {

            $data->message .= "\n\n".get_string('sentfrom', 'block_messageteacher', $data->referurl);

        }

        $eventdata = new \core\message\message();

        $eventdata->component = 'moodle';

        $eventdata->name = 'instantmessage';

        $eventdata->userfrom = $USER;

        $eventdata->userto = $recipient;

        $eventdata->subject = get_string('messagefrom', 'block_messageteacher', fullname($USER));

        $eventdata->fullmessage = $data->message;

        $eventdata->fullmessageformat = FORMAT_PLAIN;

        $eventdata->fullmessagehtml = '';

        $eventdata->smallmessage = '';

        $eventdata->notification = 0;

        $eventdata->courseid = $COURSE->id;

        if (!$id = message_send($eventdata)) {

            throw new message_failed_exception();

        }

        return $id;

    }

}