grade/edit/item_form.php

   1 <?php  //$Id$
   2
   3 require_once $CFG->libdir.'/formslib.php';
   4
   5 class edit_item_form extends moodleform {
   6     function definition() {
   7         global $COURSE;
   8
   9         $mform =& $this->_form;
  10
  11 /// visible elements
  12         $mform->addElement('header', 'general', get_string('gradeitem', 'grades'));
  13
  14         $mform->addElement('text', 'itemname', get_string('itemname', 'grades'));
  15         $mform->addElement('text', 'iteminfo', get_string('iteminfo', 'grades'));
  16         $mform->addElement('text', 'idnumber', get_string('idnumber'));
  17
  18         // allow setting of outcomes on module items too
  19         $options = array(0=>get_string('usenooutcome', 'grades'));
  20         if ($outcomes = grade_outcome::fetch_all(array('courseid'=>$COURSE->id))) {
  21             foreach ($outcomes as $outcome) {
  22                 $options[$scale->id] = $outcome->get_name();
  23             }
  24         }
  25         $mform->addElement('select', 'outcomeid', get_string('outcome', 'grades'), $options);
  26
  27         $options = array(GRADE_TYPE_NONE=>get_string('typenone', 'grades'),
  28                           GRADE_TYPE_VALUE=>get_string('typevalue', 'grades'),
  29                           GRADE_TYPE_SCALE=>get_string('typescale', 'grades'),
  30                           GRADE_TYPE_TEXT=>get_string('typetext', 'grades'));
  31         $mform->addElement('select', 'gradetype', get_string('gradetype', 'grades'), $options);
  32         $mform->setDefault('gradetype', GRADE_TYPE_VALUE);
  33
  34         $mform->addElement('text', 'calculation', get_string('calculation', 'grades'));
  35         $mform->disabledIf('calculation', 'gradetype', 'eq', GRADE_TYPE_TEXT);
  36         $mform->disabledIf('calculation', 'gradetype', 'eq', GRADE_TYPE_NONE);
  37
  38         $options = array(0=>get_string('usenoscale', 'grades'));
  39         if ($scales = get_records('scale')) {
  40             foreach ($scales as $scale) {
  41                 $options[$scale->id] = format_string($scale->name);
  42             }
  43         }
  44         $mform->addElement('select', 'scaleid', get_string('scale'), $options);
  45         $mform->disabledIf('scaleid', 'gradetype', 'noteq', GRADE_TYPE_SCALE);
  46
  47         $mform->addElement('text', 'grademax', get_string('grademax', 'grades'));
  48         $mform->disabledIf('grademax', 'gradetype', 'noteq', GRADE_TYPE_VALUE);
  49         $mform->setDefault('grademax', 100);
  50
  51         $mform->addElement('text', 'grademin', get_string('grademin', 'grades'));
  52         $mform->disabledIf('grademin', 'gradetype', 'noteq', GRADE_TYPE_VALUE);
  53         $mform->setDefault('grademin', 0);
  54
  55         $mform->addElement('text', 'gradepass', get_string('gradepass', 'grades'));
  56         $mform->disabledIf('gradepass', 'gradetype', 'eq', GRADE_TYPE_NONE);
  57         $mform->disabledIf('gradepass', 'gradetype', 'eq', GRADE_TYPE_TEXT);
  58         $mform->setDefault('gradepass', 0);
  59
  60         $mform->addElement('text', 'multfactor', get_string('multfactor', 'grades'));
  61         $mform->disabledIf('multfactor', 'gradetype', 'eq', GRADE_TYPE_NONE);
  62         $mform->disabledIf('multfactor', 'gradetype', 'eq', GRADE_TYPE_TEXT);
  63         $mform->setDefault('multfactor', 1);
  64
  65         $mform->addElement('text', 'plusfactor', get_string('plusfactor', 'grades'));
  66         $mform->disabledIf('plusfactor', 'gradetype', 'eq', GRADE_TYPE_NONE);
  67         $mform->disabledIf('plusfactor', 'gradetype', 'eq', GRADE_TYPE_TEXT);
  68         $mform->setDefault('plusfactor', 0);
  69
  70         $mform->addElement('advcheckbox', 'locked', get_string('locked', 'grades'));
  71
  72         $mform->addElement('date_time_selector', 'locktime', get_string('locktime', 'grades'), array('optional'=>true));
  73         $mform->disabledIf('locktime', 'gradetype', 'eq', GRADE_TYPE_NONE);
  74
  75 /// user preferences
  76         $mform->addElement('header', 'general', get_string('userpreferences', 'grades'));
  77
  78         $mform->addElement('select', 'pref_gradedisplaytype', get_string('gradedisplaytype', 'grades'),
  79                     array(GRADE_REPORT_PREFERENCE_DEFAULT => get_string('default', 'grades'),
  80                           GRADE_REPORT_GRADE_DISPLAY_TYPE_REAL => get_string('real', 'grades'),
  81                           GRADE_REPORT_GRADE_DISPLAY_TYPE_PERCENTAGE => get_string('percentage', 'grades')));
  82         $mform->setHelpButton('pref_gradedisplaytype', array(false, get_string('gradedisplaytype', 'grades'),
  83                               false, true, false, get_string("config_gradedisplaytype", 'grades')));
  84         $mform->setDefault('pref_gradedisplaytype', GRADE_REPORT_PREFERENCE_DEFAULT);
  85
  86         $mform->addElement('select', 'pref_decimalpoints', get_string('decimalpoints', 'grades'),
  87                     array(GRADE_REPORT_PREFERENCE_DEFAULT => get_string('default', 'grades'), 0, 1, 2, 3, 4, 5));
  88         $mform->setHelpButton('pref_decimalpoints', array(false, get_string('decimalpoints', 'grades'),
  89                               false, true, false, get_string("config_decimalpoints", 'grades')));
  90         $mform->setDefault('pref_decimalpoints', GRADE_REPORT_PREFERENCE_DEFAULT);
  91
  92 /// hidden params
  93         $mform->addElement('hidden', 'id', 0);
  94         $mform->setType('id', PARAM_INT);
  95
  96         $mform->addElement('hidden', 'courseid', 0);
  97         $mform->setType('courseid', PARAM_INT);
  98
  99         $mform->addElement('hidden', 'itemtype', 0);
 100         $mform->setType('itemtype', PARAM_ALPHA);
 101
 102 /// add return tracking info
 103         $gpr = $this->_customdata['gpr'];
 104         $gpr->add_mform_elements($mform);
 105
 106 //-------------------------------------------------------------------------------
 107         // buttons
 108         $this->add_action_buttons();
 109     }
 110
 111
 112 /// tweak the form - depending on existing data
 113     function definition_after_data() {
 114         global $CFG;
 115
 116         $mform =& $this->_form;
 117
 118         if ($id = $mform->getElementValue('id')) {
 119             $grade_item = grade_item::fetch(array('id'=>$id));
 120             if ($grade_item->is_normal_item()) {
 121                 // following items are set up from modules and should not be overrided by user
 122                 $mform->hardFreeze('itemname,idnumber,calculation,gradetype,grademax,grademin,scaleid');
 123             }
 124             if ($grade_item->is_manual_item()) {
 125                 // manual grade item does not use these - uses only final grades
 126                 $mform->hardFreeze('plusfactor,multfactor');
 127             }
 128         }
 129     }
 130
 131
 132 /// perform extra validation before submission
 133     function validation($data){
 134         $errors= array();
 135
 136         if (array_key_exists('calculation', $data) and $data['calculation'] != '') {
 137             $grade_item = new grade_item(array('id'=>$data['id'], 'itemtype'=>$data['itemtype'], 'courseid'=>$data['courseid']));
 138             $result = $grade_item->validate_formula($data['calculation']);
 139             if ($result !== true) {
 140                 $errors['calculation'] = $result;
 141             }
 142         }
 143
 144         if (array_key_exists('grademin', $data) and array_key_exists('grademax', $data)) {
 145             if ($data['grademax'] == $data['grademin'] or $data['grademax'] < $data['grademin']) {
 146                 $errors['grademin'] = get_String('incorrectminmax', 'grades');
 147                 $errors['grademax'] = get_String('incorrectminmax', 'grades');
 148             }
 149         }
 150
 151         if (0 == count($errors)){
 152             return true;
 153         } else {
 154             return $errors;
 155         }
 156     }
 157
 158 }
 159 ?>