item_form.php

很棒的在线教学系统

<?php  //$Id: item_form.php,v 1.20.2.19 2009/01/08 08:19:41 nicolasconnault Exp $

///////////////////////////////////////////////////////////////////////////
//                                                                       //
// NOTICE OF COPYRIGHT                                                   //
//                                                                       //
// Moodle - Modular Object-Oriented Dynamic Learning Environment         //
//          http://moodle.com                                            //
//                                                                       //
// Copyright (C) 1999 onwards  Martin Dougiamas  http://moodle.com       //
//                                                                       //
// This program 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 2 of the License, or     //
// (at your option) any later version.                                   //
//                                                                       //
// This program 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:                          //
//                                                                       //
//          http://www.gnu.org/copyleft/gpl.html                         //
//                                                                       //
///////////////////////////////////////////////////////////////////////////

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

class edit_item_form extends moodleform {
    var $displayoptions;

    function definition() {
        global $COURSE, $CFG;

        $mform =& $this->_form;

/// visible elements
        $mform->addElement('header', 'general', get_string('gradeitem', 'grades'));

        $mform->addElement('text', 'itemname', get_string('itemname', 'grades'));
        $mform->addElement('text', 'iteminfo', get_string('iteminfo', 'grades'));
        $mform->setHelpButton('iteminfo', array('iteminfo', get_string('iteminfo', 'grades'), 'grade'), true);

        $mform->addElement('text', 'idnumber', get_string('idnumbermod'));
        $mform->setHelpButton('idnumber', array('idnumber', get_string('idnumber', 'grades'), 'grade'), true);

        $options = array(GRADE_TYPE_NONE=>get_string('typenone', 'grades'),
                         GRADE_TYPE_VALUE=>get_string('typevalue', 'grades'),
                         GRADE_TYPE_SCALE=>get_string('typescale', 'grades'),
                         GRADE_TYPE_TEXT=>get_string('typetext', 'grades'));

        $mform->addElement('select', 'gradetype', get_string('gradetype', 'grades'), $options);
        $mform->setHelpButton('gradetype', array('gradetype', get_string('gradetype', 'grades'), 'grade'), true);
        $mform->setDefault('gradetype', GRADE_TYPE_VALUE);

        //$mform->addElement('text', 'calculation', get_string('calculation', 'grades'));
        //$mform->disabledIf('calculation', 'gradetype', 'eq', GRADE_TYPE_TEXT);
        //$mform->disabledIf('calculation', 'gradetype', 'eq', GRADE_TYPE_NONE);

        $options = array(0=>get_string('usenoscale', 'grades'));
        if ($scales = get_records('scale')) {
            foreach ($scales as $scale) {
                $options[$scale->id] = format_string($scale->name);
            }
        }
        $mform->addElement('select', 'scaleid', get_string('scale'), $options);
        $mform->setHelpButton('scaleid', array('scaleid', get_string('scaleid', 'grades'), 'grade'), true);
        $mform->disabledIf('scaleid', 'gradetype', 'noteq', GRADE_TYPE_SCALE);

        $mform->addElement('text', 'grademax', get_string('grademax', 'grades'));
        $mform->setHelpButton('grademax', array('grademax', get_string('grademax', 'grades'), 'grade'), true);
        $mform->disabledIf('grademax', 'gradetype', 'noteq', GRADE_TYPE_VALUE);

        $mform->addElement('text', 'grademin', get_string('grademin', 'grades'));
        $mform->setHelpButton('grademin', array('grademin', get_string('grademin', 'grades'), 'grade'), true);
        $mform->disabledIf('grademin', 'gradetype', 'noteq', GRADE_TYPE_VALUE);

        $mform->addElement('text', 'gradepass', get_string('gradepass', 'grades'));
        $mform->setHelpButton('gradepass', array('gradepass', get_string('gradepass', 'grades'), 'grade'), true);
        $mform->disabledIf('gradepass', 'gradetype', 'eq', GRADE_TYPE_NONE);
        $mform->disabledIf('gradepass', 'gradetype', 'eq', GRADE_TYPE_TEXT);

        $mform->addElement('text', 'multfactor', get_string('multfactor', 'grades'));
        $mform->setHelpButton('multfactor', array('multfactor', get_string('multfactor', 'grades'), 'grade'), true);
        $mform->setAdvanced('multfactor');
        $mform->disabledIf('multfactor', 'gradetype', 'eq', GRADE_TYPE_NONE);
        $mform->disabledIf('multfactor', 'gradetype', 'eq', GRADE_TYPE_TEXT);

        $mform->addElement('text', 'plusfactor', get_string('plusfactor', 'grades'));
        $mform->setHelpButton('plusfactor', array('plusfactor', get_string('plusfactor', 'grades'), 'grade'), true);
        $mform->setAdvanced('plusfactor');
        $mform->disabledIf('plusfactor', 'gradetype', 'eq', GRADE_TYPE_NONE);
        $mform->disabledIf('plusfactor', 'gradetype', 'eq', GRADE_TYPE_TEXT);

        /// grade display prefs
        $default_gradedisplaytype = grade_get_setting($COURSE->id, 'displaytype', $CFG->grade_displaytype);
        $options = array(GRADE_DISPLAY_TYPE_DEFAULT            => get_string('default', 'grades'),
                         GRADE_DISPLAY_TYPE_REAL               => get_string('real', 'grades'),
                         GRADE_DISPLAY_TYPE_PERCENTAGE         => get_string('percentage', 'grades'),
                         GRADE_DISPLAY_TYPE_LETTER             => get_string('letter', 'grades'),
                         GRADE_DISPLAY_TYPE_REAL_PERCENTAGE    => get_string('realpercentage', 'grades'),
                         GRADE_DISPLAY_TYPE_REAL_LETTER        => get_string('realletter', 'grades'),
                         GRADE_DISPLAY_TYPE_LETTER_REAL        => get_string('letterreal', 'grades'),
                         GRADE_DISPLAY_TYPE_LETTER_PERCENTAGE  => get_string('letterpercentage', 'grades'),
                         GRADE_DISPLAY_TYPE_PERCENTAGE_LETTER  => get_string('percentageletter', 'grades'),
                         GRADE_DISPLAY_TYPE_PERCENTAGE_REAL    => get_string('percentagereal', 'grades')
                         );

        asort($options);

        foreach ($options as $key=>$option) {
            if ($key == $default_gradedisplaytype) {
                $options[GRADE_DISPLAY_TYPE_DEFAULT] = get_string('defaultprev', 'grades', $option);
                break;
            }
        }
        $mform->addElement('select', 'display', get_string('gradedisplaytype', 'grades'), $options);
        $mform->setHelpButton('display', array('gradedisplaytype', get_string('gradedisplaytype', 'grades'), 'grade'), true);

        $default_gradedecimals = grade_get_setting($COURSE->id, 'decimalpoints', $CFG->grade_decimalpoints);
        $options = array(-1=>get_string('defaultprev', 'grades', $default_gradedecimals), 0=>0, 1=>1, 2=>2, 3=>3, 4=>4, 5=>5);
        $mform->addElement('select', 'decimals', get_string('decimalpoints', 'grades'), $options);
        $mform->setHelpButton('decimals', array('decimalpoints', get_string('decimalpoints', 'grades'), 'grade'), true);
        $mform->setDefault('decimals', -1);
        $mform->disabledIf('decimals', 'display', 'eq', GRADE_DISPLAY_TYPE_LETTER);
        if ($default_gradedisplaytype == GRADE_DISPLAY_TYPE_LETTER) {
            $mform->disabledIf('decimals', 'display', "eq", GRADE_DISPLAY_TYPE_DEFAULT);
        }

        /// hiding
        // advcheckbox is not compatible with disabledIf!
        $mform->addElement('checkbox', 'hidden', get_string('hidden', 'grades'));
        $mform->setHelpButton('hidden', array('hidden', get_string('hidden', 'grades'), 'grade'));
        $mform->addElement('date_time_selector', 'hiddenuntil', get_string('hiddenuntil', 'grades'), array('optional'=>true));
        $mform->setHelpButton('hiddenuntil', array('hiddenuntil', get_string('hiddenuntil', 'grades'), 'grade'));
        $mform->disabledIf('hidden', 'hiddenuntil[off]', 'notchecked');

        /// locking
        $mform->addElement('advcheckbox', 'locked', get_string('locked', 'grades'));
        $mform->setHelpButton('locked', array('locked', get_string('locked', 'grades'), 'grade'));

        $mform->addElement('date_time_selector', 'locktime', get_string('locktime', 'grades'), array('optional'=>true));
        $mform->setHelpButton('locktime', array('lockedafter', get_string('locktime', 'grades'), 'grade'));
        $mform->disabledIf('locktime', 'gradetype', 'eq', GRADE_TYPE_NONE);

/// parent category related settings
        $mform->addElement('header', 'headerparent', get_string('parentcategory', 'grades'));

        $options = array();
        $default = '';
        $coefstring = '';
        $categories = grade_category::fetch_all(array('courseid'=>$COURSE->id));
        foreach ($categories as $cat) {
            $cat->apply_forced_settings();
            $options[$cat->id] = $cat->get_name();
            if ($cat->is_course_category()) {
                $default = $cat->id;
            }
            if ($cat->is_aggregationcoef_used()) {
                if ($cat->aggregation == GRADE_AGGREGATE_WEIGHTED_MEAN) {
                    $coefstring = ($coefstring=='' or $coefstring=='aggregationcoefweight') ? 'aggregationcoefweight' : 'aggregationcoef';

                } else if ($cat->aggregation == GRADE_AGGREGATE_EXTRACREDIT_MEAN) {
                    $coefstring = ($coefstring=='' or $coefstring=='aggregationcoefextra') ? 'aggregationcoefextra' : 'aggregationcoef';

                } else if ($cat->aggregation == GRADE_AGGREGATE_SUM) {
                    $coefstring = ($coefstring=='' or $coefstring=='aggregationcoefextrasum') ? 'aggregationcoefextrasum' : 'aggregationcoef';

                } else {
                    $coefstring = 'aggregationcoef';
                }
            } else {
                $mform->disabledIf('aggregationcoef', 'parentcategory', 'eq', $cat->id);
            }
        }

        if (count($categories) > 1) {
            $mform->addElement('select', 'parentcategory', get_string('gradecategory', 'grades'), $options);
        }

        if ($coefstring !== '') {
            if ($coefstring == 'aggregationcoefextrasum') {
                // advcheckbox is not compatible with disabledIf!
                $mform->addElement('checkbox', 'aggregationcoef', get_string($coefstring, 'grades'));
            } else {
                $mform->addElement('text', 'aggregationcoef', get_string($coefstring, 'grades'));