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 file contains the forms to create and edit an instance of this module

 *

 * @package   mod_assign

 * @copyright 2012 NetSpot {@link http://www.netspot.com.au}

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

 */

defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');

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

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

require_once('HTML/QuickForm/input.php');

/**

 * Assignment grade form

 *

 * @package   mod_assign

 * @copyright 2012 NetSpot {@link http://www.netspot.com.au}

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

 */

class mod_assign_grade_form extends moodleform {

    /** @var assignment $assignment */

    private $assignment;

    /**

     * Define the form - called by parent constructor.

     */

    public function definition() {

        $mform = $this->_form;

        list($assignment, $data, $params) = $this->_customdata;

        // Visible elements.

        $this->assignment = $assignment;

        $assignment->add_grade_form_elements($mform, $data, $params);

        if ($data) {

            $this->set_data($data);

        }

    }

    /**

     * This is required so when using "Save and next", each form is not defaulted to the previous form.

     * Giving each form a unique identitifer is enough to prevent this

     * (include the rownum in the form name).

     *

     * @return string - The unique identifier for this form.

     */

    protected function get_form_identifier() {

        $params = $this->_customdata[2];

        return get_class($this) . '_' . $params['userid'];

    }

    /**

     * Perform minimal validation on the grade form

     * @param array $data

     * @param array $files

     */

    public function validation($data, $files) {

        global $DB;

        $errors = parent::validation($data, $files);

        $instance = $this->assignment->get_instance();

        // Advanced grading.

        if (!array_key_exists('grade', $data)) {

            return $errors;

        }

        if ($instance->grade > 0) {

            if (unformat_float($data['grade'], true) === false && (!empty($data['grade']))) {

                $errors['grade'] = get_string('invalidfloatforgrade', 'assign', $data['grade']);

            } else if (unformat_float($data['grade']) > $instance->grade) {

                $errors['grade'] = get_string('gradeabovemaximum', 'assign', $instance->grade);

            } else if (unformat_float($data['grade']) < 0) {

                $errors['grade'] = get_string('gradebelowzero', 'assign');

            }

        } else {

            // This is a scale.

            if ($scale = $DB->get_record('scale', array('id'=>-($instance->grade)))) {

                $scaleoptions = make_menu_from_list($scale->scale);

                if ((int)$data['grade'] !== -1 && !array_key_exists((int)$data['grade'], $scaleoptions)) {

                    $errors['grade'] = get_string('invalidgradeforscale', 'assign');

                }

            }

        }

        return $errors;

    }

}