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 defines an mform to edit rubric grading strategy forms.

 *

 * @package    workshopform_rubric

 * @copyright  2009 David Mudrak <david.mudrak@gmail.com>

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

 */

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

require_once(__DIR__ . '/../edit_form.php');    // parent class definition

/**

 * Class for editing rubric grading strategy forms.

 *

 * @uses moodleform

 */

class workshop_edit_rubric_strategy_form extends workshop_edit_strategy_form {

    const MINLEVELS = 4;

    const ADDLEVELS = 2;

    /**

     * Define the elements to be displayed at the form

     *

     * Called by the parent::definition()

     *

     * @return void

     */

    protected function definition_inner(&$mform) {

        $norepeats          = $this->_customdata['norepeats'];          // number of dimensions to display

        $descriptionopts    = $this->_customdata['descriptionopts'];    // wysiwyg fields options

        $current            = $this->_customdata['current'];            // current data to be set

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

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

        // value not to be overridden by submitted value

        $mform->setConstants(array('norepeats' => $norepeats));

        $levelgrades = array();

        for ($i = 100; $i >= 0; $i--) {

            $levelgrades[$i] = $i;

        }

        for ($i = 0; $i < $norepeats; $i++) {

            $mform->addElement('header', 'dimension'.$i, get_string('dimensionnumber', 'workshopform_rubric', $i+1));

            $mform->addElement('hidden', 'dimensionid__idx_'.$i);

            $mform->setType('dimensionid__idx_'.$i, PARAM_INT);

            $mform->addElement('editor', 'description__idx_'.$i.'_editor',

                                get_string('dimensiondescription', 'workshopform_rubric'), '', $descriptionopts);

            if (isset($current->{'numoflevels__idx_' . $i})) {

                $numoflevels = max($current->{'numoflevels__idx_' . $i} + self::ADDLEVELS, self::MINLEVELS);

            } else {

                $numoflevels = self::MINLEVELS;

            }

            $prevlevel = -1;

            for ($j = 0; $j < $numoflevels; $j++) {

                $mform->addElement('hidden', 'levelid__idx_' . $i . '__idy_' . $j);

                $mform->setType('levelid__idx_' . $i . '__idy_' . $j, PARAM_INT);

                $levelgrp = array();

                $levelgrp[] = $mform->createElement('select', 'grade__idx_'.$i.'__idy_'.$j,'', $levelgrades);

                $levelgrp[] = $mform->createElement('textarea', 'definition__idx_'.$i.'__idy_'.$j, '',  array('cols' => 60, 'rows' => 3));

                $mform->addGroup($levelgrp, 'level__idx_'.$i.'__idy_'.$j, get_string('levelgroup', 'workshopform_rubric'), array(' '), false);

                $mform->setDefault('grade__idx_'.$i.'__idy_'.$j, $prevlevel + 1);

                if (isset($current->{'grade__idx_'.$i.'__idy_'.$j})) {

                    $prevlevel = $current->{'grade__idx_'.$i.'__idy_'.$j};

                } else {

                    $prevlevel++;

                }

            }

        }

        $mform->registerNoSubmitButton('adddims');

        $mform->addElement('submit', 'adddims', get_string('addmoredimensions', 'workshopform_rubric',

                workshop_rubric_strategy::ADDDIMS));

        $mform->closeHeaderBefore('adddims');

        $mform->addElement('header', 'configheader', get_string('configuration', 'workshopform_rubric'));

        $layoutgrp = array();

        $layoutgrp[] = $mform->createElement('radio', 'config_layout', '',

                get_string('layoutlist', 'workshopform_rubric'), 'list');

        $layoutgrp[] = $mform->createElement('radio', 'config_layout', '',

                get_string('layoutgrid', 'workshopform_rubric'), 'grid');

        $mform->addGroup($layoutgrp, 'layoutgrp', get_string('layout', 'workshopform_rubric'), array('<br />'), false);

        $mform->setDefault('config_layout', 'list');

        $this->set_data($current);

    }

    /**

     * Provide validation rules for the rubric editor form.

     *

     * @param array $data

     * @param array $files

     * @return array

     */

    protected function validation_inner($data, $files) {

        $errors = array();

        // Iterate over all submitted dimensions (criteria).

        for ($i = 0; isset($data['dimensionid__idx_'.$i]); $i++) {

            $dimgrades = array();

            if (0 == strlen(trim($data['description__idx_'.$i.'_editor']['text']))) {

                // The description text is empty and this criterion will be deleted.

                continue;

            }

            // Make sure the levels grades are unique within the criterion.

            $atleastonelevel = false;

            for ($j = 0; isset($data['levelid__idx_'.$i.'__idy_'.$j]); $j++) {

                if (0 == strlen(trim($data['definition__idx_'.$i.'__idy_'.$j]))) {

                    // The level definition is empty and will not be saved.

                    continue;

                }

                $atleastonelevel = true;

                $levelgrade = $data['grade__idx_'.$i.'__idy_'.$j];

                if (isset($dimgrades[$levelgrade])) {

                    // This grade has already been set for another level.

                    $k = $dimgrades[$levelgrade];

                    $errors['level__idx_'.$i.'__idy_'.$j] = $errors['level__idx_'.$i.'__idy_'.$k] = get_string('mustbeunique',

                        'workshopform_rubric');

                } else {

                    $dimgrades[$levelgrade] = $j;

                }

            }

            if (!$atleastonelevel) {

                $errors['level__idx_'.$i.'__idy_0'] = get_string('mustdefinelevel', 'workshopform_rubric');

            }

        }

        return $errors;

    }

}