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108 lines
3.6 KiB
108 lines
3.6 KiB
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* A moodleform to allow the editing of a calculated grade item
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*
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* @package core_grades
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* @copyright 2007 Petr Skoda
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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if (!defined('MOODLE_INTERNAL')) {
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die('Direct access to this script is forbidden.'); /// It must be included from a Moodle page
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}
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require_once $CFG->libdir.'/formslib.php';
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class edit_calculation_form extends moodleform {
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public $available;
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public $noidnumbers;
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function definition() {
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global $COURSE;
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$mform =& $this->_form;
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$itemid = $this->_customdata['itemid'];
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$this->available = grade_item::fetch_all(array('courseid'=>$COURSE->id));
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$this->noidnumbers = array();
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// All items that have no idnumbers are added to a separate section of the form (hidden by default),
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// enabling the user to assign idnumbers to these grade_items.
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foreach ($this->available as $item) {
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if (empty($item->idnumber)) {
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$this->noidnumbers[$item->id] = $item;
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unset($this->available[$item->id]);
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}
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if ($item->id == $itemid) { // Do not include the current grade_item in the available section
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unset($this->available[$item->id]);
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}
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}
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/// visible elements
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$mform->addElement('header', 'general', get_string('gradeitem', 'grades'));
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$mform->addElement('static', 'itemname', get_string('itemname', 'grades'));
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$mform->addElement('textarea', 'calculation', get_string('calculation', 'grades'), 'cols="60" rows="5"');
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$mform->addHelpButton('calculation', 'calculation', 'grades');
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$mform->setForceLtr('calculation');
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/// hidden params
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$mform->addElement('hidden', 'id', 0);
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$mform->setType('id', PARAM_INT);
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$mform->addElement('hidden', 'courseid', 0);
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$mform->setType('courseid', PARAM_INT);
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$mform->addElement('hidden', 'section', 0);
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$mform->setType('section', PARAM_ALPHA);
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$mform->setDefault('section', 'calculation');
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/// add return tracking info
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$gpr = $this->_customdata['gpr'];
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$gpr->add_mform_elements($mform);
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$this->add_action_buttons();
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}
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function definition_after_data() {
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global $CFG, $COURSE;
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$mform =& $this->_form;
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}
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/// perform extra validation before submission
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function validation($data, $files) {
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$errors = parent::validation($data, $files);
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$mform =& $this->_form;
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// check the calculation formula
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if ($data['calculation'] != '') {
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$grade_item = grade_item::fetch(array('id'=>$data['id'], 'courseid'=>$data['courseid']));
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$calculation = calc_formula::unlocalize(stripslashes($data['calculation']));
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$result = $grade_item->validate_formula($calculation);
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if ($result !== true) {
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$errors['calculation'] = $result;
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}
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}
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return $errors;
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}
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}
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