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 to edit the grade options for an individual grade category 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 25if (!defined('MOODLE_INTERNAL')) { 26 die('Direct access to this script is forbidden.'); /// It must be included from a Moodle page 27} 28 29require_once $CFG->libdir.'/formslib.php'; 30 31class edit_category_form extends moodleform { 32 private $aggregation_options = array(); 33 34 function definition() { 35 global $CFG, $COURSE, $DB, $OUTPUT; 36 $mform =& $this->_form; 37 38 $category = $this->_customdata['current']; 39 40 $this->aggregation_options = grade_helper::get_aggregation_strings(); 41 42 // visible elements 43 $mform->addElement('header', 'headercategory', get_string('gradecategory', 'grades')); 44 $mform->addElement('text', 'fullname', get_string('categoryname', 'grades')); 45 $mform->setType('fullname', PARAM_TEXT); 46 $mform->addRule('fullname', null, 'required', null, 'client'); 47 48 $mform->addElement('select', 'aggregation', get_string('aggregation', 'grades'), $this->aggregation_options); 49 $mform->addHelpButton('aggregation', 'aggregation', 'grades'); 50 51 if ((int)$CFG->grade_aggregation_flag & 2) { 52 $mform->setAdvanced('aggregation'); 53 } 54 55 $mform->addElement('checkbox', 'aggregateonlygraded', get_string('aggregateonlygraded', 'grades')); 56 $mform->addHelpButton('aggregateonlygraded', 'aggregateonlygraded', 'grades'); 57 58 if ((int)$CFG->grade_aggregateonlygraded_flag & 2) { 59 $mform->setAdvanced('aggregateonlygraded'); 60 } 61 62 if (empty($CFG->enableoutcomes)) { 63 $mform->addElement('hidden', 'aggregateoutcomes'); 64 $mform->setType('aggregateoutcomes', PARAM_INT); 65 } else { 66 $mform->addElement('checkbox', 'aggregateoutcomes', get_string('aggregateoutcomes', 'grades')); 67 $mform->addHelpButton('aggregateoutcomes', 'aggregateoutcomes', 'grades'); 68 if ((int)$CFG->grade_aggregateoutcomes_flag & 2) { 69 $mform->setAdvanced('aggregateoutcomes'); 70 } 71 } 72 73 $mform->addElement('text', 'keephigh', get_string('keephigh', 'grades'), 'size="3"'); 74 $mform->setType('keephigh', PARAM_INT); 75 $mform->addHelpButton('keephigh', 'keephigh', 'grades'); 76 if ((int)$CFG->grade_keephigh_flag & 2) { 77 $mform->setAdvanced('keephigh'); 78 } 79 80 $mform->addElement('text', 'droplow', get_string('droplow', 'grades'), 'size="3"'); 81 $mform->setType('droplow', PARAM_INT); 82 $mform->addHelpButton('droplow', 'droplow', 'grades'); 83 $mform->disabledIf('droplow', 'keephigh', 'noteq', 0); 84 if ((int)$CFG->grade_droplow_flag & 2) { 85 $mform->setAdvanced('droplow'); 86 } 87 88 $mform->disabledIf('keephigh', 'droplow', 'noteq', 0); 89 $mform->disabledIf('droplow', 'keephigh', 'noteq', 0); 90 91 // Grade item settings 92 // Displayed as Category total to avoid confusion between grade items requiring marking and category totals 93 $mform->addElement('header', 'general', get_string('categorytotal', 'grades')); 94 95 $mform->addElement('text', 'grade_item_itemname', get_string('categorytotalname', 'grades')); 96 $mform->setType('grade_item_itemname', PARAM_TEXT); 97 $mform->setAdvanced('grade_item_itemname'); 98 99 $mform->addElement('text', 'grade_item_iteminfo', get_string('iteminfo', 'grades')); 100 $mform->addHelpButton('grade_item_iteminfo', 'iteminfo', 'grades'); 101 $mform->setType('grade_item_iteminfo', PARAM_TEXT); 102 103 $mform->addElement('text', 'grade_item_idnumber', get_string('idnumbermod')); 104 $mform->addHelpButton('grade_item_idnumber', 'idnumbermod'); 105 $mform->setType('grade_item_idnumber', PARAM_RAW); 106 107 if (!empty($category->id)) { 108 $gradecategory = grade_category::fetch(array('id' => $category->id)); 109 $gradeitem = $gradecategory->load_grade_item(); 110 111 // If grades exist set a message so the user knows why they can not alter the grade type or scale. 112 // We could never change the grade type for external items, so only need to show this for manual grade items. 113 if ($gradeitem->has_overridden_grades()) { 114 // Set a message so the user knows why the can not alter the grade type or scale. 115 if ($gradeitem->gradetype == GRADE_TYPE_SCALE) { 116 $gradesexistmsg = get_string('modgradecategorycantchangegradetyporscalemsg', 'grades'); 117 } else { 118 $gradesexistmsg = get_string('modgradecategorycantchangegradetypemsg', 'grades'); 119 } 120 $notification = new \core\output\notification($gradesexistmsg, \core\output\notification::NOTIFY_INFO); 121 $notification->set_show_closebutton(false); 122 $mform->addElement('static', 'gradesexistmsg', '', $OUTPUT->render($notification)); 123 } 124 } 125 126 $options = array(GRADE_TYPE_NONE=>get_string('typenone', 'grades'), 127 GRADE_TYPE_VALUE=>get_string('typevalue', 'grades'), 128 GRADE_TYPE_SCALE=>get_string('typescale', 'grades'), 129 GRADE_TYPE_TEXT=>get_string('typetext', 'grades')); 130 131 $mform->addElement('select', 'grade_item_gradetype', get_string('gradetype', 'grades'), $options); 132 $mform->addHelpButton('grade_item_gradetype', 'gradetype', 'grades'); 133 $mform->setDefault('grade_item_gradetype', GRADE_TYPE_VALUE); 134 $mform->disabledIf('grade_item_gradetype', 'aggregation', 'eq', GRADE_AGGREGATE_SUM); 135 136 //$mform->addElement('text', 'calculation', get_string('calculation', 'grades')); 137 //$mform->disabledIf('calculation', 'gradetype', 'eq', GRADE_TYPE_TEXT); 138 //$mform->disabledIf('calculation', 'gradetype', 'eq', GRADE_TYPE_NONE); 139 140 $options = array(0=>get_string('usenoscale', 'grades')); 141 if ($scales = grade_scale::fetch_all_local($COURSE->id)) { 142 foreach ($scales as $scale) { 143 $options[$scale->id] = $scale->get_name(); 144 } 145 } 146 if ($scales = grade_scale::fetch_all_global()) { 147 foreach ($scales as $scale) { 148 $options[$scale->id] = $scale->get_name(); 149 } 150 } 151 // ugly BC hack - it was possible to use custom scale from other courses :-( 152 if (!empty($category->grade_item_scaleid) and !isset($options[$category->grade_item_scaleid])) { 153 if ($scale = grade_scale::fetch(array('id'=>$category->grade_item_scaleid))) { 154 $options[$scale->id] = $scale->get_name().' '.get_string('incorrectcustomscale', 'grades'); 155 } 156 } 157 $mform->addElement('select', 'grade_item_scaleid', get_string('scale'), $options); 158 $mform->addHelpButton('grade_item_scaleid', 'typescale', 'grades'); 159 $mform->disabledIf('grade_item_scaleid', 'grade_item_gradetype', 'noteq', GRADE_TYPE_SCALE); 160 $mform->disabledIf('grade_item_scaleid', 'aggregation', 'eq', GRADE_AGGREGATE_SUM); 161 162 $choices = array(); 163 $choices[''] = get_string('choose'); 164 $choices['no'] = get_string('no'); 165 $choices['yes'] = get_string('yes'); 166 $mform->addElement('select', 'grade_item_rescalegrades', get_string('modgradecategoryrescalegrades', 'grades'), $choices); 167 $mform->addHelpButton('grade_item_rescalegrades', 'modgradecategoryrescalegrades', 'grades'); 168 $mform->disabledIf('grade_item_rescalegrades', 'grade_item_gradetype', 'noteq', GRADE_TYPE_VALUE); 169 170 $mform->addElement('text', 'grade_item_grademax', get_string('grademax', 'grades')); 171 $mform->setType('grade_item_grademax', PARAM_RAW); 172 $mform->addHelpButton('grade_item_grademax', 'grademax', 'grades'); 173 $mform->disabledIf('grade_item_grademax', 'grade_item_gradetype', 'noteq', GRADE_TYPE_VALUE); 174 $mform->disabledIf('grade_item_grademax', 'aggregation', 'eq', GRADE_AGGREGATE_SUM); 175 176 if ((bool) get_config('moodle', 'grade_report_showmin')) { 177 $mform->addElement('text', 'grade_item_grademin', get_string('grademin', 'grades')); 178 $mform->setType('grade_item_grademin', PARAM_RAW); 179 $mform->addHelpButton('grade_item_grademin', 'grademin', 'grades'); 180 $mform->disabledIf('grade_item_grademin', 'grade_item_gradetype', 'noteq', GRADE_TYPE_VALUE); 181 $mform->disabledIf('grade_item_grademin', 'aggregation', 'eq', GRADE_AGGREGATE_SUM); 182 } 183 184 $mform->addElement('text', 'grade_item_gradepass', get_string('gradepass', 'grades')); 185 $mform->setType('grade_item_gradepass', PARAM_RAW); 186 $mform->addHelpButton('grade_item_gradepass', 'gradepass', 'grades'); 187 $mform->disabledIf('grade_item_gradepass', 'grade_item_gradetype', 'eq', GRADE_TYPE_NONE); 188 $mform->disabledIf('grade_item_gradepass', 'grade_item_gradetype', 'eq', GRADE_TYPE_TEXT); 189 190 /// grade display prefs 191 $default_gradedisplaytype = grade_get_setting($COURSE->id, 'displaytype', $CFG->grade_displaytype); 192 $options = array(GRADE_DISPLAY_TYPE_DEFAULT => get_string('default', 'grades'), 193 GRADE_DISPLAY_TYPE_REAL => get_string('real', 'grades'), 194 GRADE_DISPLAY_TYPE_PERCENTAGE => get_string('percentage', 'grades'), 195 GRADE_DISPLAY_TYPE_LETTER => get_string('letter', 'grades'), 196 GRADE_DISPLAY_TYPE_REAL_PERCENTAGE => get_string('realpercentage', 'grades'), 197 GRADE_DISPLAY_TYPE_REAL_LETTER => get_string('realletter', 'grades'), 198 GRADE_DISPLAY_TYPE_LETTER_REAL => get_string('letterreal', 'grades'), 199 GRADE_DISPLAY_TYPE_LETTER_PERCENTAGE => get_string('letterpercentage', 'grades'), 200 GRADE_DISPLAY_TYPE_PERCENTAGE_LETTER => get_string('percentageletter', 'grades'), 201 GRADE_DISPLAY_TYPE_PERCENTAGE_REAL => get_string('percentagereal', 'grades') 202 ); 203 204 asort($options); 205 206 foreach ($options as $key=>$option) { 207 if ($key == $default_gradedisplaytype) { 208 $options[GRADE_DISPLAY_TYPE_DEFAULT] = get_string('defaultprev', 'grades', $option); 209 break; 210 } 211 } 212 $mform->addElement('select', 'grade_item_display', get_string('gradedisplaytype', 'grades'), $options); 213 $mform->addHelpButton('grade_item_display', 'gradedisplaytype', 'grades'); 214 $mform->disabledIf('grade_item_display', 'grade_item_gradetype', 'in', 215 array(GRADE_TYPE_TEXT, GRADE_TYPE_NONE)); 216 217 $default_gradedecimals = grade_get_setting($COURSE->id, 'decimalpoints', $CFG->grade_decimalpoints); 218 $options = array(-1=>get_string('defaultprev', 'grades', $default_gradedecimals), 0=>0, 1=>1, 2=>2, 3=>3, 4=>4, 5=>5); 219 $mform->addElement('select', 'grade_item_decimals', get_string('decimalpoints', 'grades'), $options); 220 $mform->addHelpButton('grade_item_decimals', 'decimalpoints', 'grades'); 221 $mform->setDefault('grade_item_decimals', -1); 222 $mform->disabledIf('grade_item_decimals', 'grade_item_display', 'eq', GRADE_DISPLAY_TYPE_LETTER); 223 $mform->disabledIf('grade_item_decimals', 'grade_item_gradetype', 'in', 224 array(GRADE_TYPE_TEXT, GRADE_TYPE_NONE)); 225 226 if ($default_gradedisplaytype == GRADE_DISPLAY_TYPE_LETTER) { 227 $mform->disabledIf('grade_item_decimals', 'grade_item_display', "eq", GRADE_DISPLAY_TYPE_DEFAULT); 228 } 229 230 /// hiding 231 // advcheckbox is not compatible with disabledIf! 232 $mform->addElement('checkbox', 'grade_item_hidden', get_string('hidden', 'grades')); 233 $mform->addHelpButton('grade_item_hidden', 'hidden', 'grades'); 234 $mform->addElement('date_time_selector', 'grade_item_hiddenuntil', get_string('hiddenuntil', 'grades'), array('optional'=>true)); 235 $mform->disabledIf('grade_item_hidden', 'grade_item_hiddenuntil[off]', 'notchecked'); 236 237 /// locking 238 $mform->addElement('checkbox', 'grade_item_locked', get_string('locked', 'grades')); 239 $mform->addHelpButton('grade_item_locked', 'locked', 'grades'); 240 241 $mform->addElement('date_time_selector', 'grade_item_locktime', get_string('locktime', 'grades'), array('optional'=>true)); 242 $mform->disabledIf('grade_item_locktime', 'grade_item_gradetype', 'eq', GRADE_TYPE_NONE); 243 244/// parent category related settings 245 $mform->addElement('header', 'headerparent', get_string('parentcategory', 'grades')); 246 247 $mform->addElement('advcheckbox', 'grade_item_weightoverride', get_string('adjustedweight', 'grades')); 248 $mform->addHelpButton('grade_item_weightoverride', 'weightoverride', 'grades'); 249 250 $mform->addElement('text', 'grade_item_aggregationcoef2', get_string('weight', 'grades')); 251 $mform->addHelpButton('grade_item_aggregationcoef2', 'weight', 'grades'); 252 $mform->setType('grade_item_aggregationcoef2', PARAM_RAW); 253 $mform->disabledIf('grade_item_aggregationcoef2', 'grade_item_weightoverride'); 254 255 $options = array(); 256 $default = -1; 257 $categories = grade_category::fetch_all(array('courseid'=>$COURSE->id)); 258 259 foreach ($categories as $cat) { 260 $cat->apply_forced_settings(); 261 $options[$cat->id] = $cat->get_name(); 262 if ($cat->is_course_category()) { 263 $default = $cat->id; 264 } 265 } 266 267 if (count($categories) > 1) { 268 $mform->addElement('select', 'parentcategory', get_string('parentcategory', 'grades'), $options); 269 $mform->setDefault('parentcategory', $default); 270 $mform->addElement('static', 'currentparentaggregation', get_string('currentparentaggregation', 'grades')); 271 } 272 273 // hidden params 274 $mform->addElement('hidden', 'id', 0); 275 $mform->setType('id', PARAM_INT); 276 277 $mform->addElement('hidden', 'courseid', 0); 278 $mform->setType('courseid', PARAM_INT); 279 280/// add return tracking info 281 $gpr = $this->_customdata['gpr']; 282 $gpr->add_mform_elements($mform); 283 284/// mark advanced according to site settings 285 if (isset($CFG->grade_item_advanced)) { 286 $advanced = explode(',', $CFG->grade_item_advanced); 287 foreach ($advanced as $el) { 288 $el = 'grade_item_'.$el; 289 if ($mform->elementExists($el)) { 290 $mform->setAdvanced($el); 291 } 292 } 293 } 294 295//------------------------------------------------------------------------------- 296 // buttons 297 $this->add_action_buttons(); 298//------------------------------------------------------------------------------- 299 $this->set_data($category); 300 } 301 302 303/// tweak the form - depending on existing data 304 function definition_after_data() { 305 global $CFG, $COURSE; 306 307 $mform =& $this->_form; 308 309 $somecat = new grade_category(); 310 311 foreach ($somecat->forceable as $property) { 312 if ((int)$CFG->{"grade_{$property}_flag"} & 1) { 313 if ($mform->elementExists($property)) { 314 if (empty($CFG->grade_hideforcedsettings)) { 315 $mform->hardFreeze($property); 316 } else { 317 if ($mform->elementExists($property)) { 318 $mform->removeElement($property); 319 } 320 } 321 } 322 } 323 } 324 325 if ($CFG->grade_droplow > 0) { 326 if ($mform->elementExists('keephigh')) { 327 $mform->removeElement('keephigh'); 328 } 329 } else if ($CFG->grade_keephigh > 0) { 330 if ($mform->elementExists('droplow')) { 331 $mform->removeElement('droplow'); 332 } 333 } 334 335 if ($id = $mform->getElementValue('id')) { 336 $grade_category = grade_category::fetch(array('id'=>$id)); 337 $grade_item = $grade_category->load_grade_item(); 338 339 // remove agg coef if not used 340 if ($grade_category->is_course_category()) { 341 if ($mform->elementExists('parentcategory')) { 342 $mform->removeElement('parentcategory'); 343 } 344 if ($mform->elementExists('currentparentaggregation')) { 345 $mform->removeElement('currentparentaggregation'); 346 } 347 348 } else { 349 // if we wanted to change parent of existing category - we would have to verify there are no circular references in parents!!! 350 if ($mform->elementExists('parentcategory')) { 351 $mform->hardFreeze('parentcategory'); 352 } 353 $parent_cat = $grade_category->get_parent_category(); 354 $mform->setDefault('currentparentaggregation', $this->aggregation_options[$parent_cat->aggregation]); 355 356 } 357 358 // Prevent the user from using drop lowest/keep highest when the aggregation method cannot handle it. 359 if (!$grade_category->can_apply_limit_rules()) { 360 if ($mform->elementExists('keephigh')) { 361 $mform->setConstant('keephigh', 0); 362 $mform->hardFreeze('keephigh'); 363 } 364 if ($mform->elementExists('droplow')) { 365 $mform->setConstant('droplow', 0); 366 $mform->hardFreeze('droplow'); 367 } 368 } 369 370 if ($grade_item->is_calculated()) { 371 // following elements are ignored when calculation formula used 372 if ($mform->elementExists('aggregation')) { 373 $mform->removeElement('aggregation'); 374 } 375 if ($mform->elementExists('keephigh')) { 376 $mform->removeElement('keephigh'); 377 } 378 if ($mform->elementExists('droplow')) { 379 $mform->removeElement('droplow'); 380 } 381 if ($mform->elementExists('aggregateonlygraded')) { 382 $mform->removeElement('aggregateonlygraded'); 383 } 384 if ($mform->elementExists('aggregateoutcomes')) { 385 $mform->removeElement('aggregateoutcomes'); 386 } 387 } 388 389 // If it is a course category, remove the "required" rule from the "fullname" element 390 if ($grade_category->is_course_category()) { 391 unset($mform->_rules['fullname']); 392 $key = array_search('fullname', $mform->_required); 393 unset($mform->_required[$key]); 394 } 395 396 // If it is a course category and its fullname is ?, show an empty field 397 if ($grade_category->is_course_category() && $mform->getElementValue('fullname') == '?') { 398 $mform->setDefault('fullname', ''); 399 } 400 // remove unwanted aggregation options 401 if ($mform->elementExists('aggregation')) { 402 $allaggoptions = array_keys($this->aggregation_options); 403 $agg_el =& $mform->getElement('aggregation'); 404 $visible = explode(',', $CFG->grade_aggregations_visible); 405 if (!is_null($grade_category->aggregation)) { 406 // current type is always visible 407 $visible[] = $grade_category->aggregation; 408 } 409 foreach ($allaggoptions as $type) { 410 if (!in_array($type, $visible)) { 411 $agg_el->removeOption($type); 412 } 413 } 414 } 415 416 } else { 417 // adding new category 418 if ($mform->elementExists('currentparentaggregation')) { 419 $mform->removeElement('currentparentaggregation'); 420 } 421 // remove unwanted aggregation options 422 if ($mform->elementExists('aggregation')) { 423 $allaggoptions = array_keys($this->aggregation_options); 424 $agg_el =& $mform->getElement('aggregation'); 425 $visible = explode(',', $CFG->grade_aggregations_visible); 426 foreach ($allaggoptions as $type) { 427 if (!in_array($type, $visible)) { 428 $agg_el->removeOption($type); 429 } 430 } 431 } 432 433 $mform->removeElement('grade_item_rescalegrades'); 434 } 435 436 437 // no parent header for course category 438 if (!$mform->elementExists('parentcategory')) { 439 $mform->removeElement('headerparent'); 440 } 441 442/// GRADE ITEM 443 if ($id = $mform->getElementValue('id')) { 444 $grade_category = grade_category::fetch(array('id'=>$id)); 445 $grade_item = $grade_category->load_grade_item(); 446 447 $mform->setDefault('grade_item_hidden', (int) $grade_item->hidden); 448 449 if ($grade_item->is_outcome_item()) { 450 // we have to prevent incompatible modifications of outcomes if outcomes disabled 451 $mform->removeElement('grade_item_grademax'); 452 if ($mform->elementExists('grade_item_grademin')) { 453 $mform->removeElement('grade_item_grademin'); 454 } 455 $mform->removeElement('grade_item_gradetype'); 456 $mform->removeElement('grade_item_display'); 457 $mform->removeElement('grade_item_decimals'); 458 $mform->hardFreeze('grade_item_scaleid'); 459 // Only show the option to rescale grades on a category if its corresponding grade_item has overridden grade_grades. 460 } else if ($grade_item->has_overridden_grades()) { 461 // Can't change the grade type or the scale if there are grades. 462 $mform->hardFreeze('grade_item_gradetype, grade_item_scaleid'); 463 464 // If we are using scles then remove the unnecessary rescale and grade fields. 465 if ($grade_item->gradetype == GRADE_TYPE_SCALE) { 466 $mform->removeElement('grade_item_rescalegrades'); 467 $mform->removeElement('grade_item_grademax'); 468 if ($mform->elementExists('grade_item_grademin')) { 469 $mform->removeElement('grade_item_grademin'); 470 } 471 } else { // Not using scale, so remove it. 472 $mform->removeElement('grade_item_scaleid'); 473 $mform->disabledIf('grade_item_grademax', 'grade_item_rescalegrades', 'eq', ''); 474 $mform->disabledIf('grade_item_grademin', 'grade_item_rescalegrades', 'eq', ''); 475 } 476 } else { // Remove the rescale element if there are no grades. 477 $mform->removeElement('grade_item_rescalegrades'); 478 } 479 480 //remove the aggregation coef element if not needed 481 if ($grade_item->is_course_item()) { 482 if ($mform->elementExists('grade_item_aggregationcoef')) { 483 $mform->removeElement('grade_item_aggregationcoef'); 484 } 485 486 if ($mform->elementExists('grade_item_weightoverride')) { 487 $mform->removeElement('grade_item_weightoverride'); 488 } 489 if ($mform->elementExists('grade_item_aggregationcoef2')) { 490 $mform->removeElement('grade_item_aggregationcoef2'); 491 } 492 } else { 493 if ($grade_item->is_category_item()) { 494 $category = $grade_item->get_item_category(); 495 $parent_category = $category->get_parent_category(); 496 } else { 497 $parent_category = $grade_item->get_parent_category(); 498 } 499 500 $parent_category->apply_forced_settings(); 501 502 if (!$parent_category->is_aggregationcoef_used()) { 503 if ($mform->elementExists('grade_item_aggregationcoef')) { 504 $mform->removeElement('grade_item_aggregationcoef'); 505 } 506 } else { 507 508 $coefstring = $grade_item->get_coefstring(); 509 510 if ($coefstring == 'aggregationcoefextrasum' || $coefstring == 'aggregationcoefextraweightsum') { 511 // advcheckbox is not compatible with disabledIf! 512 $coefstring = 'aggregationcoefextrasum'; 513 $element =& $mform->createElement('checkbox', 'grade_item_aggregationcoef', get_string($coefstring, 'grades')); 514 } else { 515 $element =& $mform->createElement('text', 'grade_item_aggregationcoef', get_string($coefstring, 'grades')); 516 } 517 $mform->insertElementBefore($element, 'parentcategory'); 518 $mform->addHelpButton('grade_item_aggregationcoef', $coefstring, 'grades'); 519 } 520 521 // Remove fields used by natural weighting if the parent category is not using natural weighting. 522 // Or if the item is a scale and scales are not used in aggregation. 523 if ($parent_category->aggregation != GRADE_AGGREGATE_SUM 524 || (empty($CFG->grade_includescalesinaggregation) && $grade_item->gradetype == GRADE_TYPE_SCALE)) { 525 if ($mform->elementExists('grade_item_weightoverride')) { 526 $mform->removeElement('grade_item_weightoverride'); 527 } 528 if ($mform->elementExists('grade_item_aggregationcoef2')) { 529 $mform->removeElement('grade_item_aggregationcoef2'); 530 } 531 } 532 } 533 } 534 } 535 536/// perform extra validation before submission 537 function validation($data, $files) { 538 global $COURSE; 539 $gradeitem = false; 540 if ($data['id']) { 541 $gradecategory = grade_category::fetch(array('id' => $data['id'])); 542 $gradeitem = $gradecategory->load_grade_item(); 543 } 544 545 $errors = parent::validation($data, $files); 546 547 if (array_key_exists('grade_item_gradetype', $data) and $data['grade_item_gradetype'] == GRADE_TYPE_SCALE) { 548 if (empty($data['grade_item_scaleid'])) { 549 $errors['grade_item_scaleid'] = get_string('missingscale', 'grades'); 550 } 551 } 552 if (array_key_exists('grade_item_grademin', $data) and array_key_exists('grade_item_grademax', $data)) { 553 if (($data['grade_item_grademax'] != 0 OR $data['grade_item_grademin'] != 0) AND 554 ($data['grade_item_grademax'] == $data['grade_item_grademin'] OR 555 $data['grade_item_grademax'] < $data['grade_item_grademin'])) { 556 $errors['grade_item_grademin'] = get_string('incorrectminmax', 'grades'); 557 $errors['grade_item_grademax'] = get_string('incorrectminmax', 'grades'); 558 } 559 } 560 561 if ($data['id'] && $gradeitem->has_overridden_grades()) { 562 if ($gradeitem->gradetype == GRADE_TYPE_VALUE) { 563 if (grade_floats_different($data['grade_item_grademin'], $gradeitem->grademin) || 564 grade_floats_different($data['grade_item_grademax'], $gradeitem->grademax)) { 565 if (empty($data['grade_item_rescalegrades'])) { 566 $errors['grade_item_rescalegrades'] = get_string('mustchooserescaleyesorno', 'grades'); 567 } 568 } 569 } 570 } 571 return $errors; 572 } 573} 574 575 576