[Summary view]

Differences Between: [Versions 39 and 311] [Versions 39 and 400] [Versions 39 and 401] [Versions 39 and 402] [Versions 39 and 403]

   1  <?php
   2  // This file is part of Moodle - http://moodle.org/
   3  //
   4  // Moodle is free software: you can redistribute it and/or modify
   5  // it under the terms of the GNU General Public License as published by
   6  // the Free Software Foundation, either version 3 of the License, or
   7  // (at your option) any later version.
   8  //
   9  // Moodle is distributed in the hope that it will be useful,
  10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  // GNU General Public License for more details.
  13  //
  14  // You should have received a copy of the GNU General Public License
  15  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16  
  17  /**
  18   * A moodleform allowing the editing of the grade options for an individual grade item
  19   *
  20   * @package   core_grades
  21   * @copyright 2007 Petr Skoda
  22   * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23   */
  24  
  25  if (!defined('MOODLE_INTERNAL')) {
  26      die('Direct access to this script is forbidden.');    ///  It must be included from a Moodle page
  27  }
  28  
  29  require_once $CFG->libdir.'/formslib.php';
  30  
  31  class edit_item_form extends moodleform {
  32      private $displayoptions;
  33  
  34      function definition() {
  35          global $COURSE, $CFG, $DB;
  36  
  37          $mform =& $this->_form;
  38  
  39          $item = $this->_customdata['current'];
  40  
  41  /// visible elements
  42          $mform->addElement('header', 'general', get_string('gradeitem', 'grades'));
  43  
  44          $mform->addElement('text', 'itemname', get_string('itemname', 'grades'));
  45          $mform->setType('itemname', PARAM_TEXT);
  46          $mform->addElement('text', 'iteminfo', get_string('iteminfo', 'grades'));
  47          $mform->addHelpButton('iteminfo', 'iteminfo', 'grades');
  48          $mform->setType('iteminfo', PARAM_TEXT);
  49  
  50          $mform->addElement('text', 'idnumber', get_string('idnumbermod'));
  51          $mform->addHelpButton('idnumber', 'idnumbermod');
  52          $mform->setType('idnumber', PARAM_RAW);
  53  
  54          if (!empty($item->id)) {
  55              $gradeitem = new grade_item(array('id' => $item->id, 'courseid' => $item->courseid));
  56              // If grades exist set a message so the user knows why they can not alter the grade type or scale.
  57              // We could never change the grade type for external items, so only need to show this for manual grade items.
  58              if ($gradeitem->has_grades() && !$gradeitem->is_external_item()) {
  59                  // Set a message so the user knows why they can not alter the grade type or scale.
  60                  if ($gradeitem->gradetype == GRADE_TYPE_SCALE) {
  61                      $gradesexistmsg = get_string('modgradecantchangegradetyporscalemsg', 'grades');
  62                  } else {
  63                      $gradesexistmsg = get_string('modgradecantchangegradetypemsg', 'grades');
  64                  }
  65  
  66                  $gradesexisthtml = '<div class=\'alert\'>' . $gradesexistmsg . '</div>';
  67                  $mform->addElement('static', 'gradesexistmsg', '', $gradesexisthtml);
  68              }
  69          }
  70  
  71          // Manual grade items cannot have grade type GRADE_TYPE_NONE.
  72          $options = array(GRADE_TYPE_VALUE => get_string('typevalue', 'grades'),
  73                           GRADE_TYPE_SCALE => get_string('typescale', 'grades'),
  74                           GRADE_TYPE_TEXT => get_string('typetext', 'grades'));
  75  
  76          $mform->addElement('select', 'gradetype', get_string('gradetype', 'grades'), $options);
  77          $mform->addHelpButton('gradetype', 'gradetype', 'grades');
  78          $mform->setDefault('gradetype', GRADE_TYPE_VALUE);
  79  
  80          //$mform->addElement('text', 'calculation', get_string('calculation', 'grades'));
  81          //$mform->disabledIf('calculation', 'gradetype', 'eq', GRADE_TYPE_TEXT);
  82          //$mform->disabledIf('calculation', 'gradetype', 'eq', GRADE_TYPE_NONE);
  83  
  84          $options = array(0=>get_string('usenoscale', 'grades'));
  85          if ($scales = grade_scale::fetch_all_local($COURSE->id)) {
  86              foreach ($scales as $scale) {
  87                  $options[$scale->id] = $scale->get_name();
  88              }
  89          }
  90          if ($scales = grade_scale::fetch_all_global()) {
  91              foreach ($scales as $scale) {
  92                  $options[$scale->id] = $scale->get_name();
  93              }
  94          }
  95          // ugly BC hack - it was possible to use custom scale from other courses :-(
  96          if (!empty($item->scaleid) and !isset($options[$item->scaleid])) {
  97              if ($scale = grade_scale::fetch(array('id'=>$item->scaleid))) {
  98                  $options[$scale->id] = $scale->get_name().get_string('incorrectcustomscale', 'grades');
  99              }
 100          }
 101          $mform->addElement('select', 'scaleid', get_string('scale'), $options);
 102          $mform->addHelpButton('scaleid', 'typescale', 'grades');
 103          $mform->disabledIf('scaleid', 'gradetype', 'noteq', GRADE_TYPE_SCALE);
 104  
 105          $choices = array();
 106          $choices[''] = get_string('choose');
 107          $choices['no'] = get_string('no');
 108          $choices['yes'] = get_string('yes');
 109          $mform->addElement('select', 'rescalegrades', get_string('modgraderescalegrades', 'grades'), $choices);
 110          $mform->addHelpButton('rescalegrades', 'modgraderescalegrades', 'grades');
 111          $mform->disabledIf('rescalegrades', 'gradetype', 'noteq', GRADE_TYPE_VALUE);
 112  
 113          $mform->addElement('text', 'grademax', get_string('grademax', 'grades'));
 114          $mform->addHelpButton('grademax', 'grademax', 'grades');
 115          $mform->disabledIf('grademax', 'gradetype', 'noteq', GRADE_TYPE_VALUE);
 116          $mform->setType('grademax', PARAM_RAW);
 117  
 118          if ((bool) get_config('moodle', 'grade_report_showmin')) {
 119              $mform->addElement('text', 'grademin', get_string('grademin', 'grades'));
 120              $mform->addHelpButton('grademin', 'grademin', 'grades');
 121              $mform->disabledIf('grademin', 'gradetype', 'noteq', GRADE_TYPE_VALUE);
 122              $mform->setType('grademin', PARAM_RAW);
 123          }
 124  
 125          $mform->addElement('text', 'gradepass', get_string('gradepass', 'grades'));
 126          $mform->addHelpButton('gradepass', 'gradepass', 'grades');
 127          $mform->disabledIf('gradepass', 'gradetype', 'eq', GRADE_TYPE_NONE);
 128          $mform->disabledIf('gradepass', 'gradetype', 'eq', GRADE_TYPE_TEXT);
 129          $mform->setType('gradepass', PARAM_RAW);
 130  
 131          $mform->addElement('text', 'multfactor', get_string('multfactor', 'grades'));
 132          $mform->addHelpButton('multfactor', 'multfactor', 'grades');
 133          $mform->setAdvanced('multfactor');
 134          $mform->disabledIf('multfactor', 'gradetype', 'eq', GRADE_TYPE_NONE);
 135          $mform->disabledIf('multfactor', 'gradetype', 'eq', GRADE_TYPE_TEXT);
 136          $mform->setType('multfactor', PARAM_RAW);
 137  
 138          $mform->addElement('text', 'plusfactor', get_string('plusfactor', 'grades'));
 139          $mform->addHelpButton('plusfactor', 'plusfactor', 'grades');
 140          $mform->setAdvanced('plusfactor');
 141          $mform->disabledIf('plusfactor', 'gradetype', 'eq', GRADE_TYPE_NONE);
 142          $mform->disabledIf('plusfactor', 'gradetype', 'eq', GRADE_TYPE_TEXT);
 143          $mform->setType('plusfactor', PARAM_RAW);
 144  
 145          /// grade display prefs
 146          $default_gradedisplaytype = grade_get_setting($COURSE->id, 'displaytype', $CFG->grade_displaytype);
 147          $options = array(GRADE_DISPLAY_TYPE_DEFAULT            => get_string('default', 'grades'),
 148                           GRADE_DISPLAY_TYPE_REAL               => get_string('real', 'grades'),
 149                           GRADE_DISPLAY_TYPE_PERCENTAGE         => get_string('percentage', 'grades'),
 150                           GRADE_DISPLAY_TYPE_LETTER             => get_string('letter', 'grades'),
 151                           GRADE_DISPLAY_TYPE_REAL_PERCENTAGE    => get_string('realpercentage', 'grades'),
 152                           GRADE_DISPLAY_TYPE_REAL_LETTER        => get_string('realletter', 'grades'),
 153                           GRADE_DISPLAY_TYPE_LETTER_REAL        => get_string('letterreal', 'grades'),
 154                           GRADE_DISPLAY_TYPE_LETTER_PERCENTAGE  => get_string('letterpercentage', 'grades'),
 155                           GRADE_DISPLAY_TYPE_PERCENTAGE_LETTER  => get_string('percentageletter', 'grades'),
 156                           GRADE_DISPLAY_TYPE_PERCENTAGE_REAL    => get_string('percentagereal', 'grades')
 157                           );
 158  
 159          asort($options);
 160  
 161          foreach ($options as $key=>$option) {
 162              if ($key == $default_gradedisplaytype) {
 163                  $options[GRADE_DISPLAY_TYPE_DEFAULT] = get_string('defaultprev', 'grades', $option);
 164                  break;
 165              }
 166          }
 167          $mform->addElement('select', 'display', get_string('gradedisplaytype', 'grades'), $options);
 168          $mform->addHelpButton('display', 'gradedisplaytype', 'grades');
 169          $mform->disabledIf('display', 'gradetype', 'eq', GRADE_TYPE_TEXT);
 170  
 171          $default_gradedecimals = grade_get_setting($COURSE->id, 'decimalpoints', $CFG->grade_decimalpoints);
 172          $options = array(-1=>get_string('defaultprev', 'grades', $default_gradedecimals), 0=>0, 1=>1, 2=>2, 3=>3, 4=>4, 5=>5);
 173          $mform->addElement('select', 'decimals', get_string('decimalpoints', 'grades'), $options);
 174          $mform->addHelpButton('decimals', 'decimalpoints', 'grades');
 175          $mform->setDefault('decimals', -1);
 176          $mform->disabledIf('decimals', 'display', 'eq', GRADE_DISPLAY_TYPE_LETTER);
 177          if ($default_gradedisplaytype == GRADE_DISPLAY_TYPE_LETTER) {
 178              $mform->disabledIf('decimals', 'display', "eq", GRADE_DISPLAY_TYPE_DEFAULT);
 179          }
 180          $mform->disabledIf('decimals', 'gradetype', 'eq', GRADE_TYPE_TEXT);
 181  
 182          /// hiding
 183          if ($item->cancontrolvisibility) {
 184              $mform->addElement('advcheckbox', 'hidden', get_string('hidden', 'grades'), '', [], [0, 1]);
 185              $mform->addElement('date_time_selector', 'hiddenuntil', get_string('hiddenuntil', 'grades'), array('optional'=>true));
 186              $mform->disabledIf('hidden', 'hiddenuntil[enabled]', 'checked');
 187          } else {
 188              $mform->addElement('static', 'hidden', get_string('hidden', 'grades'),
 189                      get_string('componentcontrolsvisibility', 'grades'));
 190              // Unset hidden to avoid data override.
 191              unset($item->hidden);
 192          }
 193          $mform->addHelpButton('hidden', 'hidden', 'grades');
 194  
 195          /// locking
 196          $mform->addElement('advcheckbox', 'locked', get_string('locked', 'grades'));
 197          $mform->addHelpButton('locked', 'locked', 'grades');
 198  
 199          $mform->addElement('date_time_selector', 'locktime', get_string('locktime', 'grades'), array('optional'=>true));
 200          $mform->disabledIf('locktime', 'gradetype', 'eq', GRADE_TYPE_NONE);
 201  
 202  /// parent category related settings
 203          $mform->addElement('header', 'headerparent', get_string('parentcategory', 'grades'));
 204  
 205          $mform->addElement('advcheckbox', 'weightoverride', get_string('adjustedweight', 'grades'));
 206          $mform->addHelpButton('weightoverride', 'weightoverride', 'grades');
 207          $mform->disabledIf('weightoverride', 'gradetype', 'eq', GRADE_TYPE_NONE);
 208          $mform->disabledIf('weightoverride', 'gradetype', 'eq', GRADE_TYPE_TEXT);
 209  
 210          $mform->addElement('text', 'aggregationcoef2', get_string('weight', 'grades'));
 211          $mform->addHelpButton('aggregationcoef2', 'weight', 'grades');
 212          $mform->setType('aggregationcoef2', PARAM_RAW);
 213          $mform->disabledIf('aggregationcoef2', 'weightoverride');
 214          $mform->disabledIf('aggregationcoef2', 'gradetype', 'eq', GRADE_TYPE_NONE);
 215          $mform->disabledIf('aggregationcoef2', 'gradetype', 'eq', GRADE_TYPE_TEXT);
 216  
 217          $options = array();
 218          $coefstring = '';
 219          $categories = grade_category::fetch_all(array('courseid'=>$COURSE->id));
 220  
 221          foreach ($categories as $cat) {
 222              $cat->apply_forced_settings();
 223              $options[$cat->id] = $cat->get_name();
 224          }
 225  
 226          if (count($categories) > 1) {
 227              $mform->addElement('select', 'parentcategory', get_string('gradecategory', 'grades'), $options);
 228          }
 229  
 230  /// hidden params
 231          $mform->addElement('hidden', 'id', 0);
 232          $mform->setType('id', PARAM_INT);
 233  
 234          $mform->addElement('hidden', 'courseid', $COURSE->id);
 235          $mform->setType('courseid', PARAM_INT);
 236  
 237          $mform->addElement('hidden', 'itemtype', 'manual'); // all new items are manual only
 238          $mform->setType('itemtype', PARAM_ALPHA);
 239  
 240  /// add return tracking info
 241          $gpr = $this->_customdata['gpr'];
 242          $gpr->add_mform_elements($mform);
 243  
 244  /// mark advanced according to site settings
 245          if (isset($CFG->grade_item_advanced)) {
 246              $advanced = explode(',', $CFG->grade_item_advanced);
 247              foreach ($advanced as $el) {
 248                  if ($mform->elementExists($el)) {
 249                      $mform->setAdvanced($el);
 250                  }
 251              }
 252          }
 253  //-------------------------------------------------------------------------------
 254          // buttons
 255          $this->add_action_buttons();
 256  //-------------------------------------------------------------------------------
 257          $this->set_data($item);
 258      }
 259  
 260  
 261  /// tweak the form - depending on existing data
 262      function definition_after_data() {
 263          global $CFG, $COURSE;
 264  
 265          $mform =& $this->_form;
 266  
 267          if ($id = $mform->getElementValue('id')) {
 268              $gradeitem = grade_item::fetch(array('id' => $id));
 269              $parentcategory = $gradeitem->get_parent_category();
 270          } else {
 271              // If we do not have an id, we are creating a new grade item.
 272              $gradeitem = new grade_item(array('courseid' => $COURSE->id, 'itemtype' => 'manual'), false);
 273  
 274              // Assign the course category to this grade item.
 275              $parentcategory = grade_category::fetch_course_category($COURSE->id);
 276              $gradeitem->parent_category = $parentcategory;
 277          }
 278  
 279          if (!$gradeitem->is_raw_used()) {
 280              $mform->removeElement('plusfactor');
 281              $mform->removeElement('multfactor');
 282          }
 283  
 284          if ($gradeitem->is_outcome_item()) {
 285              // We have to prevent incompatible modifications of outcomes if outcomes disabled.
 286              $mform->removeElement('grademax');
 287              if ($mform->elementExists('grademin')) {
 288                  $mform->removeElement('grademin');
 289              }
 290              $mform->removeElement('gradetype');
 291              $mform->removeElement('display');
 292              $mform->removeElement('decimals');
 293              $mform->hardFreeze('scaleid');
 294  
 295          } else {
 296              if ($gradeitem->is_external_item()) {
 297                  // Following items are set up from modules and should not be overrided by user.
 298                  if ($mform->elementExists('grademin')) {
 299                      // The site setting grade_report_showmin may have prevented grademin being added to the form.
 300                      $mform->hardFreeze('grademin');
 301                  }
 302                  $mform->hardFreeze('itemname,gradetype,grademax,scaleid');
 303                  if ($gradeitem->itemnumber == 0) {
 304                      // The idnumber of grade itemnumber 0 is synced with course_modules.
 305                      $mform->hardFreeze('idnumber');
 306                  }
 307  
 308                  // For external items we can not change the grade type, even if no grades exist, so if it is set to
 309                  // scale, then remove the grademax and grademin fields from the form - no point displaying them.
 310                  if ($gradeitem->gradetype == GRADE_TYPE_SCALE) {
 311                      $mform->removeElement('grademax');
 312                      if ($mform->elementExists('grademin')) {
 313                          $mform->removeElement('grademin');
 314                      }
 315                  } else { // Not using scale, so remove it.
 316                      $mform->removeElement('scaleid');
 317                  }
 318  
 319                  // Always remove the rescale grades element if it's an external item.
 320                  $mform->removeElement('rescalegrades');
 321              } else if ($gradeitem->has_grades()) {
 322                  // Can't change the grade type or the scale if there are grades.
 323                  $mform->hardFreeze('gradetype, scaleid');
 324  
 325                  // If we are using scales then remove the unnecessary rescale and grade fields.
 326                  if ($gradeitem->gradetype == GRADE_TYPE_SCALE) {
 327                      $mform->removeElement('rescalegrades');
 328                      $mform->removeElement('grademax');
 329                      if ($mform->elementExists('grademin')) {
 330                          $mform->removeElement('grademin');
 331                      }
 332                  } else { // Remove the scale field.
 333                      $mform->removeElement('scaleid');
 334                      // Set the maximum grade to disabled unless a grade is chosen.
 335                      $mform->disabledIf('grademax', 'rescalegrades', 'eq', '');
 336                  }
 337              } else {
 338                  // Remove the rescale element if there are no grades.
 339                  $mform->removeElement('rescalegrades');
 340              }
 341          }
 342  
 343          // If we wanted to change parent of existing item - we would have to verify there are no circular references in parents!!!
 344          if ($id && $mform->elementExists('parentcategory')) {
 345              $mform->hardFreeze('parentcategory');
 346          }
 347  
 348          $parentcategory->apply_forced_settings();
 349  
 350          if (!$parentcategory->is_aggregationcoef_used()) {
 351              if ($mform->elementExists('aggregationcoef')) {
 352                  $mform->removeElement('aggregationcoef');
 353              }
 354  
 355          } else {
 356              $coefstring = $gradeitem->get_coefstring();
 357  
 358              if ($coefstring !== '') {
 359                  if ($coefstring == 'aggregationcoefextrasum' || $coefstring == 'aggregationcoefextraweightsum') {
 360                      // The advcheckbox is not compatible with disabledIf!
 361                      $coefstring = 'aggregationcoefextrasum';
 362                      $element =& $mform->createElement('checkbox', 'aggregationcoef', get_string($coefstring, 'grades'));
 363                  } else {
 364                      $element =& $mform->createElement('text', 'aggregationcoef', get_string($coefstring, 'grades'));
 365                  }
 366                  if ($mform->elementExists('parentcategory')) {
 367                      $mform->insertElementBefore($element, 'parentcategory');
 368                  } else {
 369                      $mform->insertElementBefore($element, 'id');
 370                  }
 371                  $mform->addHelpButton('aggregationcoef', $coefstring, 'grades');
 372              }
 373              $mform->disabledIf('aggregationcoef', 'gradetype', 'eq', GRADE_TYPE_NONE);
 374              $mform->disabledIf('aggregationcoef', 'gradetype', 'eq', GRADE_TYPE_TEXT);
 375              $mform->disabledIf('aggregationcoef', 'parentcategory', 'eq', $parentcategory->id);
 376          }
 377  
 378          // Remove fields used by natural weighting if the parent category is not using natural weighting.
 379          // Or if the item is a scale and scales are not used in aggregation.
 380          if ($parentcategory->aggregation != GRADE_AGGREGATE_SUM
 381                  || (empty($CFG->grade_includescalesinaggregation) && $gradeitem->gradetype == GRADE_TYPE_SCALE)) {
 382              if ($mform->elementExists('weightoverride')) {
 383                  $mform->removeElement('weightoverride');
 384              }
 385              if ($mform->elementExists('aggregationcoef2')) {
 386                  $mform->removeElement('aggregationcoef2');
 387              }
 388          }
 389  
 390          if ($category = $gradeitem->get_item_category()) {
 391              if ($category->aggregation == GRADE_AGGREGATE_SUM) {
 392                  if ($mform->elementExists('gradetype')) {
 393                      $mform->hardFreeze('gradetype');
 394                  }
 395                  if ($mform->elementExists('grademin')) {
 396                      $mform->hardFreeze('grademin');
 397                  }
 398                  if ($mform->elementExists('grademax')) {
 399                      $mform->hardFreeze('grademax');
 400                  }
 401                  if ($mform->elementExists('scaleid')) {
 402                      $mform->removeElement('scaleid');
 403                  }
 404              }
 405          }
 406  
 407          // no parent header for course category
 408          if (!$mform->elementExists('aggregationcoef') and !$mform->elementExists('parentcategory')) {
 409              $mform->removeElement('headerparent');
 410          }
 411      }
 412  
 413  /// perform extra validation before submission
 414      function validation($data, $files) {
 415          global $COURSE;
 416          $grade_item = false;
 417          if ($data['id']) {
 418              $grade_item = new grade_item(array('id' => $data['id'], 'courseid' => $data['courseid']));
 419          }
 420  
 421          $errors = parent::validation($data, $files);
 422  
 423          if (array_key_exists('idnumber', $data)) {
 424              if ($grade_item) {
 425                  if ($grade_item->itemtype == 'mod') {
 426                      $cm = get_coursemodule_from_instance($grade_item->itemmodule, $grade_item->iteminstance, $grade_item->courseid);
 427                  } else {
 428                      $cm = null;
 429                  }
 430              } else {
 431                  $grade_item = null;
 432                  $cm = null;
 433              }
 434              if (!grade_verify_idnumber($data['idnumber'], $COURSE->id, $grade_item, $cm)) {
 435                  $errors['idnumber'] = get_string('idnumbertaken');
 436              }
 437          }
 438  
 439          if (array_key_exists('gradetype', $data) and $data['gradetype'] == GRADE_TYPE_SCALE) {
 440              if (empty($data['scaleid'])) {
 441                  $errors['scaleid'] = get_string('missingscale', 'grades');
 442              }
 443          }
 444  
 445          if (array_key_exists('grademin', $data) and array_key_exists('grademax', $data)) {
 446              if ($data['grademax'] == $data['grademin'] or $data['grademax'] < $data['grademin']) {
 447                  $errors['grademin'] = get_string('incorrectminmax', 'grades');
 448                  $errors['grademax'] = get_string('incorrectminmax', 'grades');
 449              }
 450          }
 451  
 452          // We do not want the user to be able to change the grade type or scale for this item if grades exist.
 453          if ($grade_item && $grade_item->has_grades()) {
 454              // Check that grade type is set - should never not be set unless form has been modified.
 455              if (!isset($data['gradetype'])) {
 456                  $errors['gradetype'] = get_string('modgradecantchangegradetype', 'grades');
 457              } else if ($data['gradetype'] !== $grade_item->gradetype) { // Check if we are changing the grade type.
 458                  $errors['gradetype'] = get_string('modgradecantchangegradetype', 'grades');
 459              } else if ($data['gradetype'] == GRADE_TYPE_SCALE) {
 460                  // Check if we are changing the scale - can't do this when grades exist.
 461                  if (isset($data['scaleid']) && ($data['scaleid'] !== $grade_item->scaleid)) {
 462                      $errors['scaleid'] = get_string('modgradecantchangescale', 'grades');
 463                  }
 464              }
 465          }
 466          if ($grade_item) {
 467              if ($grade_item->gradetype == GRADE_TYPE_VALUE) {
 468                  if ((((bool) get_config('moodle', 'grade_report_showmin')) &&
 469                      grade_floats_different($data['grademin'], $grade_item->grademin)) ||
 470                      grade_floats_different($data['grademax'], $grade_item->grademax)) {
 471                      if ($grade_item->has_grades() && empty($data['rescalegrades'])) {
 472                          $errors['rescalegrades'] = get_string('mustchooserescaleyesorno', 'grades');
 473                      }
 474                  }
 475              }
 476          }
 477  
 478          return $errors;
 479      }
 480  
 481  }
 482