temp_form.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/>.

/**
 * Form for creating temporary users.
 *
 * @package    mod_attendance
 * @copyright  2013 Davo Smith, Synergy Learning
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

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

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

/**
 * Class temp_form
 * @copyright  2013 Davo Smith, Synergy Learning
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class temp_form extends moodleform {
    /**
     * Define form.
     */
    public function definition() {
        $mform = $this->_form;

        $mform->addElement('hidden', 'id', 0);
        $mform->setType('id', PARAM_INT);

        $mform->addElement('header', 'attheader', get_string('tempaddform', 'attendance'));
        $mform->addElement('text', 'tname', get_string('tusername', 'attendance'));
        $mform->addRule('tname', 'Required', 'required', null, 'client');
        $mform->setType('tname', PARAM_TEXT);

        $mform->addElement('text', 'temail', get_string('tuseremail', 'attendance'));
        $mform->addRule('temail', 'Email', 'email', null, 'client');
        $mform->addRule('temail', '', 'callback', null, 'server');
        $mform->setType('temail', PARAM_EMAIL);

        $mform->addElement('submit', 'submitbutton', get_string('adduser', 'attendance'));
        $mform->closeHeaderBefore('submit');
    }

    /**
     * Do stuff to form after creation.
     */
    public function definition_after_data() {
        $mform = $this->_form;
        $mform->applyFilter('tname', 'trim');
    }

    /**
     * Form validation.
     *
     * @param array $data
     * @param array $files
     * @return array
     */
    public function validation($data, $files) {
        $errors = parent::validation($data, $files);

        if ($err = mod_attendance_structure::check_existing_email($data['temail'])) {
            $errors['temail'] = $err;
        }

        return $errors;
    }
}