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Developer Documentation
- Bug fixes for general core bugs in 3.11.x will end 14 Nov 2022 (12 months plus 6 months extension).
- Bug fixes for security issues in 3.11.x will end 13 Nov 2023 (18 months plus 12 months extension).
- PHP version: minimum PHP 7.3.0 Note: minimum PHP version has increased since Moodle 3.10. PHP 7.4.x is supported too.
/backup/cc/ -> entity11.quiz.class.php (source)
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 * @package moodlecore 18 * @subpackage backup-imscc 19 * @copyright 2009 Mauro Rondinelli (mauro.rondinelli [AT] uvcms.com) 20 * @copyright 2011 Darko Miletic <dmiletic@moodlerooms.com> 21 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later 22 */ 23 24 defined('MOODLE_INTERNAL') or die('Direct access to this script is forbidden.'); 25 26 class cc11_quiz extends entities11 { 27 28 public function generate_node_question_categories () { 29 30 $instances = $this->generate_instances(); 31 32 $node_course_question_categories = $this->create_node_course_question_categories($instances); 33 $node_course_question_categories = empty($node_course_question_categories) ? '' : $node_course_question_categories; 34 35 return $node_course_question_categories; 36 37 } 38 39 public function generate_node_course_modules_mod () { 40 41 cc112moodle::log_action('Creating Quiz mods'); 42 43 $node_course_modules_mod = ''; 44 $instances = $this->generate_instances(); 45 46 if (!empty($instances)) { 47 foreach ($instances as $instance) { 48 if ($instance['is_question_bank'] == 0) { 49 $node_course_modules_mod .= $this->create_node_course_modules_mod($instance); 50 } 51 } 52 } 53 54 return $node_course_modules_mod; 55 56 } 57 58 private function create_node_course_modules_mod_quiz_feedback () { 59 60 $sheet_question_mod_feedback = cc112moodle::loadsheet(SHEET_COURSE_SECTIONS_SECTION_MODS_MOD_QUIZ_FEEDBACK); 61 62 return $sheet_question_mod_feedback; 63 } 64 65 private function generate_instances () { 66 67 $last_instance_id = 0; 68 $last_question_id = 0; 69 $last_answer_id = 0; 70 71 $instances = array(); 72 73 $types = array(MOODLE_TYPE_QUIZ, MOODLE_TYPE_QUESTION_BANK); 74 75 foreach ($types as $type) { 76 77 if (!empty(cc112moodle::$instances['instances'][$type])) { 78 79 foreach (cc112moodle::$instances['instances'][$type] as $instance) { 80 81 if ($type == MOODLE_TYPE_QUIZ) { 82 $is_question_bank = 0; 83 } else { 84 $is_question_bank = 1; 85 } 86 87 $assessment_file = $this->get_external_xml($instance['resource_indentifier']); 88 89 if (!empty($assessment_file)) { 90 91 $assessment = $this->load_xml_resource(cc112moodle::$path_to_manifest_folder . DIRECTORY_SEPARATOR . $assessment_file); 92 93 if (!empty($assessment)) { 94 95 $replace_values = array('unlimited' => 0); 96 97 $questions = $this->get_questions($assessment, $last_question_id, $last_answer_id, dirname($assessment_file), $is_question_bank); 98 $question_count = count($questions); 99 100 if (!empty($question_count)) { 101 102 $last_instance_id++; 103 104 $instances[$instance['resource_indentifier']]['questions'] = $questions; 105 $instances[$instance['resource_indentifier']]['id'] = $last_instance_id; 106 $instances[$instance['resource_indentifier']]['title'] = $instance['title']; 107 $instances[$instance['resource_indentifier']]['is_question_bank'] = $is_question_bank; 108 $instances[$instance['resource_indentifier']]['options']['timelimit'] = $this->get_global_config($assessment, 'qmd_timelimit', 0); 109 $instances[$instance['resource_indentifier']]['options']['max_attempts'] = $this->get_global_config($assessment, 'cc_maxattempts', 0, $replace_values); 110 } 111 } 112 } 113 } 114 } 115 } 116 117 return $instances; 118 } 119 120 121 private function create_node_course_modules_mod ($instance) { 122 123 $sheet_question_mod = cc112moodle::loadsheet(SHEET_COURSE_SECTIONS_SECTION_MODS_MOD_QUIZ); 124 125 $node_course_modules_quiz_question_instances = $this->create_node_course_modules_mod_quiz_question_instances($instance); 126 $node_course_modules_quiz_feedback = $this->create_node_course_modules_mod_quiz_feedback($instance); 127 128 $questions_strings = $this->get_questions_string($instance); 129 $quiz_stamp = 'localhost+' . time() . '+' . $this->generate_random_string(6); 130 131 $find_tags = array('[#mod_id#]', 132 '[#mod_name#]', 133 '[#mod_intro#]', 134 '[#mod_stamp#]', 135 '[#question_string#]', 136 '[#date_now#]', 137 '[#mod_max_attempts#]', 138 '[#mod_timelimit#]', 139 '[#node_question_instance#]', 140 '[#node_questions_feedback#]'); 141 142 $replace_values = array($instance['id'], 143 self::safexml($instance['title']), 144 self::safexml($instance['title']), 145 self::safexml($quiz_stamp), 146 self::safexml($questions_strings), 147 time(), 148 $instance['options']['max_attempts'], 149 $instance['options']['timelimit'], 150 $node_course_modules_quiz_question_instances, 151 $node_course_modules_quiz_feedback); //this one has tags 152 153 $node_question_mod = str_replace($find_tags, $replace_values, $sheet_question_mod); 154 155 return $node_question_mod; 156 } 157 158 private function get_global_config ($assessment, $option, $default_value, $replace_values = '') { 159 160 $xpath = cc112moodle::newx_path($assessment, cc112moodle::getquizns()); 161 $metadata = $xpath->query('/xmlns:questestinterop/xmlns:assessment/xmlns:qtimetadata/xmlns:qtimetadatafield'); 162 163 foreach ($metadata as $field) { 164 $field_label = $xpath->query('xmlns:fieldlabel', $field); 165 $field_label = !empty($field_label->item(0)->nodeValue) ? $field_label->item(0)->nodeValue : ''; 166 167 if (strtolower($field_label) == strtolower($option)) { 168 $field_entry = $xpath->query('xmlns:fieldentry', $field); 169 $response = !empty($field_entry->item(0)->nodeValue) ? $field_entry->item(0)->nodeValue : ''; 170 } 171 } 172 173 $response = !empty($response) ? trim($response) : ''; 174 175 if (!empty($replace_values)) { 176 foreach ($replace_values as $key => $value) { 177 $response = ($key == $response) ? $value : $response; 178 } 179 } 180 181 $response = empty($response) ? $default_value : $response; 182 183 return $response; 184 } 185 186 private function create_node_course_modules_mod_quiz_question_instances ($instance) { 187 188 $node_course_module_mod_quiz_questions_instances = ''; 189 $sheet_question_mod_instance = cc112moodle::loadsheet(SHEET_COURSE_SECTIONS_SECTION_MODS_MOD_QUIZ_QUESTION_INSTANCE); 190 191 $find_tags = array('[#question_id#]' , '[#instance_id#]'); 192 193 if (!empty($instance['questions'])) { 194 195 foreach ($instance['questions'] as $question) { 196 $replace_values = array($question['id'] , $question['id']); 197 $node_course_module_mod_quiz_questions_instances .= str_replace($find_tags, $replace_values, $sheet_question_mod_instance); 198 } 199 200 $node_course_module_mod_quiz_questions_instances = str_replace($find_tags, $replace_values, $node_course_module_mod_quiz_questions_instances); 201 } 202 203 return $node_course_module_mod_quiz_questions_instances; 204 } 205 206 private function get_questions_string ($instance) { 207 208 $questions_string = ''; 209 210 if (!empty($instance['questions'])) { 211 foreach ($instance['questions'] as $question) { 212 $questions_string .= $question['id'] . ','; 213 } 214 } 215 216 $questions_string = !empty($questions_string) ? substr($questions_string, 0, strlen($questions_string) - 1) : ''; 217 218 return $questions_string; 219 } 220 221 private function create_node_course_question_categories ($instances) { 222 223 $sheet_question_categories = cc112moodle::loadsheet(SHEET_COURSE_QUESTION_CATEGORIES); 224 225 if (!empty($instances)) { 226 227 $node_course_question_categories_question_category = ''; 228 229 foreach ($instances as $instance) { 230 $node_course_question_categories_question_category .= $this->create_node_course_question_categories_question_category($instance); 231 } 232 233 $find_tags = array('[#node_course_question_categories_question_category#]'); 234 $replace_values = array($node_course_question_categories_question_category); 235 236 $node_course_question_categories = str_replace($find_tags, $replace_values, $sheet_question_categories); 237 } 238 239 $node_course_question_categories = empty($node_course_question_categories) ? '' : $node_course_question_categories; 240 241 return $node_course_question_categories; 242 } 243 244 private function create_node_course_question_categories_question_category ($instance) { 245 246 $sheet_question_categories_quetion_category = cc112moodle::loadsheet(SHEET_COURSE_QUESTION_CATEGORIES_QUESTION_CATEGORY); 247 248 $find_tags = array('[#quiz_id#]', 249 '[#quiz_name#]', 250 '[#quiz_stamp#]', 251 '[#node_course_question_categories_question_category_questions#]'); 252 253 $node_course_question_categories_questions = $this->create_node_course_question_categories_question_category_question($instance); 254 $node_course_question_categories_questions = empty($node_course_question_categories_questions) ? '' : $node_course_question_categories_questions; 255 256 $quiz_stamp = 'localhost+' . time() . '+' . $this->generate_random_string(6); 257 258 $replace_values = array($instance['id'], 259 self::safexml($instance['title']), 260 $quiz_stamp, 261 $node_course_question_categories_questions); 262 263 $node_question_categories = str_replace($find_tags, $replace_values, $sheet_question_categories_quetion_category); 264 265 return $node_question_categories; 266 } 267 268 private function create_node_course_question_categories_question_category_question ($instance) { 269 270 global $USER; 271 272 $node_course_question_categories_question = ''; 273 274 $find_tags = array('[#question_id#]', 275 '[#question_title#]', 276 '[#question_text#]', 277 '[#question_type#]', 278 '[#question_general_feedback#]', 279 '[#question_defaultgrade#]', 280 '[#date_now#]', 281 '[#question_type_nodes#]', 282 '[#question_stamp#]', 283 '[#question_version#]', 284 '[#logged_user#]'); 285 286 $sheet_question_categories_question = cc112moodle::loadsheet(SHEET_COURSE_QUESTION_CATEGORIES_QUESTION_CATEGORY_QUESTION); 287 288 $questions = $instance['questions']; 289 290 if (!empty($questions)) { 291 292 foreach ($questions as $question) { 293 294 $quiz_stamp = 'localhost+' . time() . '+' . $this->generate_random_string(6); 295 $quiz_version = 'localhost+' . time() . '+' . $this->generate_random_string(6); 296 297 $question_moodle_type = $question['moodle_type']; 298 $question_cc_type = $question['cc_type']; 299 300 $question_type_node = ''; 301 302 $question_type_node = ($question_moodle_type == MOODLE_QUIZ_MULTIPLE_CHOICE) ? $this->create_node_course_question_categories_question_category_question_multiple_choice($question) : $question_type_node; 303 $question_type_node = ($question_moodle_type == MOODLE_QUIZ_TRUE_FALSE) ? $this->create_node_course_question_categories_question_category_question_true_false($question) : $question_type_node; 304 $question_type_node = ($question_moodle_type == MOODLE_QUIZ_ESSAY) ? $this->create_node_course_question_categories_question_category_question_eesay($question) : $question_type_node; 305 $question_type_node = ($question_moodle_type == MOODLE_QUIZ_SHORTANSWER) ? $this->create_node_course_question_categories_question_category_question_shortanswer($question) : $question_type_node; 306 307 $questionname = !empty($question['name']) ? self::safexml($question['name']) : self::safexml($this->truncate_text($question['title'], 255, true)); 308 $replace_values = array($question['id'], 309 $questionname, 310 self::safexml($question['title']), 311 $question_moodle_type, 312 self::safexml($question['feedback']), 313 $question['defaultgrade'], 314 time(), 315 $question_type_node, 316 $quiz_stamp, 317 $quiz_version, 318 $USER->id); 319 320 $node_course_question_categories_question .= str_replace($find_tags, $replace_values, $sheet_question_categories_question); 321 } 322 } 323 324 $node_course_question_categories_question = empty($node_course_question_categories_question) ? '' : $node_course_question_categories_question; 325 326 return $node_course_question_categories_question; 327 } 328 329 private function get_questions ($assessment, &$last_question_id, &$last_answer_id, $root_path, $is_question_bank) { 330 331 $questions = array(); 332 333 $xpath = cc112moodle::newx_path($assessment, cc112moodle::getquizns()); 334 335 if (!$is_question_bank) { 336 $questions_items = $xpath->query('/xmlns:questestinterop/xmlns:assessment/xmlns:section/xmlns:item'); 337 } else { 338 $questions_items = $xpath->query('/xmlns:questestinterop/xmlns:objectbank/xmlns:item'); 339 } 340 341 foreach ($questions_items as $question_item) { 342 343 $count_questions = $xpath->evaluate('count(xmlns:presentation/xmlns:flow/xmlns:material/xmlns:mattext)', $question_item); 344 345 if ($count_questions == 0) { 346 $question_title = $xpath->query('xmlns:presentation/xmlns:material/xmlns:mattext', $question_item); 347 } else { 348 $question_title = $xpath->query('xmlns:presentation/xmlns:flow/xmlns:material/xmlns:mattext', $question_item); 349 } 350 351 $question_title = !empty($question_title->item(0)->nodeValue) ? $question_title->item(0)->nodeValue : ''; 352 353 $question_identifier = $xpath->query('@ident', $question_item); 354 $question_identifier = !empty($question_identifier->item(0)->nodeValue) ? $question_identifier->item(0)->nodeValue : ''; 355 356 if (!empty($question_identifier)) { 357 358 $question_type = $this->get_question_type($question_identifier, $assessment); 359 360 if (!empty($question_type['moodle'])) { 361 362 $last_question_id++; 363 364 $questions[$question_identifier]['id'] = $last_question_id; 365 366 $question_title = $this->update_sources($question_title, $root_path); 367 $question_title = !empty($question_title) ? str_replace("%24", "\$", $this->include_titles($question_title)) : ''; 368 369 // This attribute is not IMSCC spec, but it is included in Moodle 2.x export of IMS1.1 370 $questionname = $xpath->query('@title', $question_item); 371 $questionname = !empty($questionname->item(0)->nodeValue) ? $questionname->item(0)->nodeValue : ''; 372 373 $questions[$question_identifier]['title'] = $question_title; 374 $questions[$question_identifier]['name'] = $questionname; 375 $questions[$question_identifier]['identifier'] = $question_identifier; 376 $questions[$question_identifier]['moodle_type'] = $question_type['moodle']; 377 $questions[$question_identifier]['cc_type'] = $question_type['cc']; 378 $questions[$question_identifier]['feedback'] = $this->get_general_feedback($assessment, $question_identifier); 379 $questions[$question_identifier]['defaultgrade'] = $this->get_defaultgrade($assessment, $question_identifier); 380 $questions[$question_identifier]['answers'] = $this->get_answers($question_identifier, $assessment, $last_answer_id); 381 382 } 383 } 384 } 385 386 $questions = !empty($questions) ? $questions : ''; 387 388 return $questions; 389 } 390 391 private function str_replace_once ($search, $replace, $subject) { 392 393 $first_char = strpos($subject, $search); 394 395 if ($first_char !== false) { 396 397 $before_str = substr($subject, 0, $first_char); 398 $after_str = substr($subject, $first_char + strlen($search)); 399 400 return $before_str . $replace . $after_str; 401 402 } else { 403 return $subject; 404 } 405 } 406 407 private function get_defaultgrade($assessment, $question_identifier) { 408 $result = 1; 409 $xpath = cc2moodle::newx_path($assessment, cc2moodle::getquizns()); 410 $query = '//xmlns:item[@ident="' . $question_identifier . '"]'; 411 $query .= '//xmlns:qtimetadatafield[xmlns:fieldlabel="cc_weighting"]/xmlns:fieldentry'; 412 $defgrade = $xpath->query($query); 413 if (!empty($defgrade) && ($defgrade->length > 0)) { 414 $resp = (int)$defgrade->item(0)->nodeValue; 415 if ($resp >= 0 && $resp <= 99) { 416 $result = $resp; 417 } 418 } 419 return $result; 420 } 421 422 private function get_general_feedback ($assessment, $question_identifier) { 423 424 $xpath = cc112moodle::newx_path($assessment, cc112moodle::getquizns()); 425 426 $respconditions = $xpath->query('//xmlns:item[@ident="' . $question_identifier . '"]/xmlns:resprocessing/xmlns:respcondition'); 427 428 if (!empty($respconditions)) { 429 430 foreach ($respconditions as $respcondition) { 431 432 $continue = $respcondition->getAttributeNode('continue'); 433 $continue = !empty($continue->nodeValue) ? strtolower($continue->nodeValue) : ''; 434 435 if ($continue == 'yes') { 436 437 $display_feedback = $xpath->query('xmlns:displayfeedback', $respcondition); 438 439 if (!empty($display_feedback)) { 440 foreach ($display_feedback as $feedback) { 441 442 $feedback_identifier = $feedback->getAttributeNode('linkrefid'); 443 $feedback_identifier = !empty($feedback_identifier->nodeValue) ? $feedback_identifier->nodeValue : ''; 444 445 if (!empty($feedback_identifier)) { 446 $feedbacks_identifiers[] = $feedback_identifier; 447 } 448 } 449 } 450 } 451 } 452 } 453 454 $feedback = ''; 455 $feedbacks_identifiers = empty($feedbacks_identifiers) ? '' : $feedbacks_identifiers; 456 457 if (!empty($feedbacks_identifiers)) { 458 foreach ($feedbacks_identifiers as $feedback_identifier) { 459 $feedbacks = $xpath->query('//xmlns:item[@ident="' . $question_identifier . '"]/xmlns:itemfeedback[@ident="' . $feedback_identifier . '"]/xmlns:flow_mat/xmlns:material/xmlns:mattext'); 460 $feedback .= !empty($feedbacks->item(0)->nodeValue) ? $feedbacks->item(0)->nodeValue . ' ' : ''; 461 } 462 } 463 464 return $feedback; 465 } 466 467 private function get_feedback ($assessment, $identifier, $item_identifier, $question_type) { 468 469 $xpath = cc112moodle::newx_path($assessment, cc112moodle::getquizns()); 470 471 $resource_processing = $xpath->query('//xmlns:item[@ident="' . $item_identifier . '"]/xmlns:resprocessing/xmlns:respcondition'); 472 473 if (!empty($resource_processing)) { 474 475 foreach ($resource_processing as $response) { 476 477 $varequal = $xpath->query('xmlns:conditionvar/xmlns:varequal', $response); 478 $varequal = !empty($varequal->item(0)->nodeValue) ? $varequal->item(0)->nodeValue : ''; 479 480 if (strtolower($varequal) == strtolower($identifier) || ($question_type == CC_QUIZ_ESSAY)) { 481 482 $display_feedback = $xpath->query('xmlns:displayfeedback', $response); 483 484 if (!empty($display_feedback)) { 485 foreach ($display_feedback as $feedback) { 486 487 $feedback_identifier = $feedback->getAttributeNode('linkrefid'); 488 $feedback_identifier = !empty($feedback_identifier->nodeValue) ? $feedback_identifier->nodeValue : ''; 489 490 if (!empty($feedback_identifier)) { 491 $feedbacks_identifiers[] = $feedback_identifier; 492 } 493 } 494 } 495 } 496 } 497 } 498 499 $feedback = ''; 500 $feedbacks_identifiers = empty($feedbacks_identifiers) ? '' : $feedbacks_identifiers; 501 502 if (!empty($feedbacks_identifiers)) { 503 foreach ($feedbacks_identifiers as $feedback_identifier) { 504 $feedbacks = $xpath->query('//xmlns:item[@ident="' . $item_identifier . '"]/xmlns:itemfeedback[@ident="' . $feedback_identifier . '"]/xmlns:flow_mat/xmlns:material/xmlns:mattext'); 505 $feedback .= !empty($feedbacks->item(0)->nodeValue) ? $feedbacks->item(0)->nodeValue . ' ' : ''; 506 } 507 } 508 509 return $feedback; 510 } 511 512 private function get_answers_fib ($question_identifier, $identifier, $assessment, &$last_answer_id) { 513 514 $xpath = cc112moodle::newx_path($assessment, cc112moodle::getquizns()); 515 516 $correctanswersfib = array(); 517 $incorrectanswersfib = array(); 518 519 $response_items = $xpath->query('//xmlns:item[@ident="' . $question_identifier . '"]/xmlns:resprocessing/xmlns:respcondition'); 520 521 $correctrespcond = $xpath->query('//xmlns:item[@ident="' . $question_identifier . '"]/xmlns:resprocessing/xmlns:respcondition/xmlns:setvar[text()="100"]/..'); 522 $correctanswers = $xpath->query('xmlns:conditionvar/xmlns:varequal', $correctrespcond->item(0)); 523 524 // Correct answers. 525 foreach ($correctanswers as $correctans) { 526 $answertitle = !empty($correctans->nodeValue) ? $correctans->nodeValue : ''; 527 if (empty($answertitle)) { 528 continue; 529 } 530 531 $last_answer_id++; 532 533 $correctanswersfib[$answertitle] = array( 534 'id' => $last_answer_id, 535 'title' => $answertitle, 536 'score' => 1, 537 'feedback' => '', 538 'case' => 0); 539 } 540 541 // Handle incorrect answers and feedback for all items. 542 foreach ($response_items as $response_item) { 543 544 $setvar = $xpath->query('xmlns:setvar', $response_item); 545 if (!empty($setvar->length) && $setvar->item(0)->nodeValue == '100') { 546 // Skip the correct answer responsecondition. 547 continue; 548 } 549 550 $varequal = $xpath->query('xmlns:conditionvar/xmlns:varequal', $response_item); 551 if (empty($varequal->length)) { 552 // Skip respcondition elements that don't have varequal containing an answer 553 continue; 554 } 555 $answer_title = !empty($varequal->item(0)->nodeValue) ? $varequal->item(0)->nodeValue : ''; 556 557 $display_feedback = $xpath->query('xmlns:displayfeedback', $response_item); 558 559 unset($feedbacks_identifiers); 560 561 if (!empty($display_feedback)) { 562 563 foreach ($display_feedback as $feedback) { 564 565 $feedback_identifier = $feedback->getAttributeNode('linkrefid'); 566 $feedback_identifier = !empty($feedback_identifier->nodeValue) ? $feedback_identifier->nodeValue : ''; 567 568 if (!empty($feedback_identifier)) { 569 $feedbacks_identifiers[] = $feedback_identifier; 570 } 571 } 572 } 573 574 $feedback = ''; 575 $feedbacks_identifiers = empty($feedbacks_identifiers) ? '' : $feedbacks_identifiers; 576 577 if (!empty($feedbacks_identifiers)) { 578 foreach ($feedbacks_identifiers as $feedback_identifier) { 579 $feedbacks = $xpath->query('//xmlns:item[@ident="' . $question_identifier . '"]/xmlns:itemfeedback[@ident="' . $feedback_identifier . '"]/xmlns:flow_mat/xmlns:material/xmlns:mattext'); 580 $feedback .= !empty($feedbacks->item(0)->nodeValue) ? $feedbacks->item(0)->nodeValue . ' ' : ''; 581 } 582 } 583 584 if (array_key_exists($answer_title, $correctanswersfib)) { 585 // Already a correct answer, just need the feedback for the correct answer. 586 $correctanswerfib[$answer_title]['feedback'] = $feedback; 587 } else { 588 // Need to add an incorrect answer. 589 $last_answer_id++; 590 $incorrectanswersfib[] = array( 591 'id' => $last_answer_id, 592 'title' => $answer_title, 593 'score' => 0, 594 'feedback' => $feedback, 595 'case' => 0); 596 } 597 } 598 599 $answers_fib = array_merge($correctanswersfib, $incorrectanswersfib); 600 $answers_fib = empty($answers_fib) ? '' : $answers_fib; 601 602 return $answers_fib; 603 } 604 605 private function get_answers_pattern_match ($question_identifier, $identifier, $assessment, &$last_answer_id) { 606 607 $xpath = cc112moodle::newx_path($assessment, cc112moodle::getquizns()); 608 609 $answers_fib = array(); 610 611 $response_items = $xpath->query('//xmlns:item[@ident="' . $question_identifier . '"]/xmlns:resprocessing/xmlns:respcondition'); 612 613 foreach ($response_items as $response_item) { 614 615 $setvar = $xpath->query('xmlns:setvar', $response_item); 616 $setvar = is_object($setvar->item(0)) ? $setvar->item(0)->nodeValue : ''; 617 618 if ($setvar != '') { 619 620 $last_answer_id++; 621 622 $answer_title = $xpath->query('xmlns:conditionvar/xmlns:varequal[@respident="' . $identifier . '"]', $response_item); 623 $answer_title = !empty($answer_title->item(0)->nodeValue) ? $answer_title->item(0)->nodeValue : ''; 624 625 if (empty($answer_title)) { 626 $answer_title = $xpath->query('xmlns:conditionvar/xmlns:varsubstring[@respident="' . $identifier . '"]', $response_item); 627 $answer_title = !empty($answer_title->item(0)->nodeValue) ? '*' . $answer_title->item(0)->nodeValue . '*' : ''; 628 } 629 630 if (empty($answer_title)) { 631 $answer_title = '*'; 632 } 633 634 $case = $xpath->query('xmlns:conditionvar/xmlns:varequal/@case', $response_item); 635 $case = is_object($case->item(0)) ? $case->item(0)->nodeValue : 'no' 636 ; 637 $case = strtolower($case) == 'yes' ? 1 : 638 0; 639 640 $display_feedback = $xpath->query('xmlns:displayfeedback', $response_item); 641 642 unset($feedbacks_identifiers); 643 644 if (!empty($display_feedback)) { 645 646 foreach ($display_feedback as $feedback) { 647 648 $feedback_identifier = $feedback->getAttributeNode('linkrefid'); 649 $feedback_identifier = !empty($feedback_identifier->nodeValue) ? $feedback_identifier->nodeValue : ''; 650 651 if (!empty($feedback_identifier)) { 652 $feedbacks_identifiers[] = $feedback_identifier; 653 } 654 } 655 } 656 657 $feedback = ''; 658 $feedbacks_identifiers = empty($feedbacks_identifiers) ? '' : $feedbacks_identifiers; 659 660 if (!empty($feedbacks_identifiers)) { 661 foreach ($feedbacks_identifiers as $feedback_identifier) { 662 $feedbacks = $xpath->query('//xmlns:item[@ident="' . $question_identifier . '"]/xmlns:itemfeedback[@ident="' . $feedback_identifier . '"]/xmlns:flow_mat/xmlns:material/xmlns:mattext'); 663 $feedback .= !empty($feedbacks->item(0)->nodeValue) ? $feedbacks->item(0)->nodeValue . ' ' : ''; 664 } 665 } 666 667 $answers_fib[] = array('id' => $last_answer_id, 668 'title' => $answer_title, 669 'score' => $setvar, 670 'feedback' => $feedback, 671 'case' => $case); 672 } 673 } 674 675 $answers_fib = empty($answers_fib) ? '' : $answers_fib; 676 677 return $answers_fib; 678 } 679 680 681 private function get_answers ($identifier, $assessment, &$last_answer_id) { 682 683 $xpath = cc112moodle::newx_path($assessment, cc112moodle::getquizns()); 684 685 $answers = array(); 686 687 $question_cc_type = $this->get_question_type($identifier, $assessment); 688 $question_cc_type = $question_cc_type['cc']; 689 $is_multiresponse = ($question_cc_type == CC_QUIZ_MULTIPLE_RESPONSE); 690 691 if ($question_cc_type == CC_QUIZ_MULTIPLE_CHOICE || $is_multiresponse || $question_cc_type == CC_QUIZ_TRUE_FALSE) { 692 693 $query_answers = '//xmlns:item[@ident="' . $identifier . '"]/xmlns:presentation/xmlns:response_lid/xmlns:render_choice/xmlns:response_label'; 694 $query_answers_with_flow = '//xmlns:item[@ident="' . $identifier . '"]/xmlns:presentation/xmlns:flow/xmlns:response_lid/xmlns:render_choice/xmlns:response_label'; 695 696 $query_indentifer = '@ident'; 697 $query_title = 'xmlns:material/xmlns:mattext'; 698 } 699 700 if ($question_cc_type == CC_QUIZ_ESSAY) { 701 702 $query_answers = '//xmlns:item[@ident="' . $identifier . '"]/xmlns:presentation/xmlns:response_str'; 703 $query_answers_with_flow = '//xmlns:item[@ident="' . $identifier . '"]/xmlns:presentation/xmlns:flow/xmlns:response_str'; 704 705 $query_indentifer = '@ident'; 706 $query_title = 'xmlns:render_fib'; 707 } 708 709 if ($question_cc_type == CC_QUIZ_FIB || $question_cc_type == CC_QUIZ_PATTERN_MACHT) { 710 711 $xpath_query = '//xmlns:item[@ident="' . $identifier . '"]/xmlns:presentation/xmlns:response_str/@ident'; 712 $xpath_query_with_flow = '//xmlns:item[@ident="' . $identifier . '"]/xmlns:presentation/xmlns:flow/xmlns:response_str/@ident'; 713 714 $count_response = $xpath->evaluate('count(' . $xpath_query_with_flow . ')'); 715 716 if ($count_response == 0) { 717 $answer_identifier = $xpath->query($xpath_query); 718 } else { 719 $answer_identifier = $xpath->query($xpath_query_with_flow); 720 } 721 722 $answer_identifier = !empty($answer_identifier->item(0)->nodeValue) ? $answer_identifier->item(0)->nodeValue : ''; 723 724 if ($question_cc_type == CC_QUIZ_FIB) { 725 $answers = $this->get_answers_fib ($identifier, $answer_identifier, $assessment, $last_answer_id); 726 } else { 727 $answers = $this->get_answers_pattern_match ($identifier, $answer_identifier, $assessment, $last_answer_id); 728 } 729 730 } else { 731 732 $count_response = $xpath->evaluate('count(' . $query_answers_with_flow . ')'); 733 734 if ($count_response == 0) { 735 $response_items = $xpath->query($query_answers); 736 } else { 737 $response_items = $xpath->query($query_answers_with_flow); 738 } 739 740 if (!empty($response_items)) { 741 742 if ($is_multiresponse) { 743 $correct_answer_score = 0; 744 //get the correct answers count 745 $canswers_query = "//xmlns:item[@ident='{$identifier}']//xmlns:setvar[@varname='SCORE'][.=100]/../xmlns:conditionvar//xmlns:varequal[@case='Yes'][not(parent::xmlns:not)]"; 746 $canswers = $xpath->query($canswers_query); 747 if ($canswers->length > 0) { 748 $correct_answer_score = round(1.0 / (float)$canswers->length, 7); //weird 749 $correct_answers_ident = array(); 750 foreach ($canswers as $cnode) { 751 $correct_answers_ident[$cnode->nodeValue] = true; 752 } 753 } 754 } 755 756 foreach ($response_items as $response_item) { 757 758 $last_answer_id++; 759 760 $answer_identifier = $xpath->query($query_indentifer, $response_item); 761 $answer_identifier = !empty($answer_identifier->item(0)->nodeValue) ? $answer_identifier->item(0)->nodeValue : ''; 762 763 $answer_title = $xpath->query($query_title, $response_item); 764 $answer_title = !empty($answer_title->item(0)->nodeValue) ? $answer_title->item(0)->nodeValue : ''; 765 766 $answer_feedback = $this->get_feedback($assessment, $answer_identifier, $identifier, $question_cc_type); 767 768 $answer_score = $this->get_score($assessment, $answer_identifier, $identifier); 769 770 if ($is_multiresponse && isset($correct_answers_ident[$answer_identifier])) { 771 $answer_score = $correct_answer_score; 772 } 773 774 $answers[] = array('id' => $last_answer_id, 775 'title' => $answer_title, 776 'score' => $answer_score, 777 'identifier' => $answer_identifier, 778 'feedback' => $answer_feedback); 779 } 780 } 781 } 782 783 $answers = empty($answers) ? '' : $answers; 784 785 return $answers; 786 787 } 788 789 private function get_score ($assessment, $identifier, $question_identifier) { 790 791 $xpath = cc112moodle::newx_path($assessment, cc112moodle::getquizns()); 792 793 $resource_processing = $xpath->query('//xmlns:item[@ident="' . $question_identifier . '"]/xmlns:resprocessing/xmlns:respcondition'); 794 795 if (!empty($resource_processing)) { 796 797 foreach ($resource_processing as $response) { 798 799 $question_cc_type = $this->get_question_type($question_identifier, $assessment); 800 $question_cc_type = $question_cc_type['cc']; 801 802 $varequal = $xpath->query('xmlns:conditionvar/xmlns:varequal', $response); 803 $varequal = !empty($varequal->item(0)->nodeValue) ? $varequal->item(0)->nodeValue : ''; 804 805 if (strtolower($varequal) == strtolower($identifier)) { 806 $score = $xpath->query('xmlns:setvar', $response); 807 $score = !empty($score->item(0)->nodeValue) ? $score->item(0)->nodeValue : ''; 808 } 809 } 810 } 811 812 // This method (get_score) is only used by T/F & M/C questions in CC, therefore it's either 0 or 1 in Moodle. 813 $score = empty($score) ? "0.0000000" : '1.0000000'; 814 815 return $score; 816 } 817 818 private function create_node_course_question_categories_question_category_question_multiple_choice ($question) { 819 820 $node_course_question_categories_question_answer = ''; 821 $sheet_question_categories_question = cc112moodle::loadsheet(SHEET_COURSE_QUESTION_CATEGORIES_QUESTION_CATEGORY_QUESTION_MULTIPLE_CHOICE); 822 823 if (!empty($question['answers'])) { 824 foreach ($question['answers'] as $answer) { 825 $node_course_question_categories_question_answer .= $this->create_node_course_question_categories_question_category_question_answer($answer); 826 } 827 } 828 829 $answer_string = $this->get_answers_string($question['answers']); 830 831 $is_single = ($question['cc_type'] == CC_QUIZ_MULTIPLE_CHOICE) ? 1 : 0; 832 833 $find_tags = array('[#node_course_question_categories_question_category_question_answer#]', 834 '[#answer_string#]', 835 '[#is_single#]'); 836 837 $replace_values = array($node_course_question_categories_question_answer, 838 self::safexml($answer_string), 839 $is_single); 840 841 $node_question_categories_question = str_replace($find_tags, $replace_values, $sheet_question_categories_question); 842 843 return $node_question_categories_question; 844 } 845 846 private function create_node_course_question_categories_question_category_question_eesay ($question) { 847 848 $node_course_question_categories_question_answer = ''; 849 850 $sheet_question_categories_question = cc112moodle::loadsheet(SHEET_COURSE_QUESTION_CATEGORIES_QUESTION_CATEGORY_QUESTION_EESAY); 851 852 if (!empty($question['answers'])) { 853 foreach ($question['answers'] as $answer) { 854 $node_course_question_categories_question_answer .= $this->create_node_course_question_categories_question_category_question_answer($answer); 855 } 856 } 857 858 $find_tags = array('[#node_course_question_categories_question_category_question_answer#]'); 859 $replace_values = array($node_course_question_categories_question_answer); 860 861 $node_question_categories_question = str_replace($find_tags, $replace_values, $sheet_question_categories_question); 862 863 return $node_question_categories_question; 864 } 865 866 private function create_node_course_question_categories_question_category_question_shortanswer ($question) { //, &$fib_questions) { 867 868 $sheet_question_categories_question = cc112moodle::loadsheet(SHEET_COURSE_QUESTION_CATEGORIES_QUESTION_CATEGORY_QUESTION_SHORTANSWER); 869 $node_course_question_categories_question_answer = ''; 870 871 if (!empty($question['answers'])) { 872 foreach ($question['answers'] as $answer) { 873 $node_course_question_categories_question_answer .= $this->create_node_course_question_categories_question_category_question_answer($answer); 874 } 875 } 876 877 $answers_string = $this->get_answers_string($question['answers']); 878 879 $use_case = 0; 880 881 foreach ($question['answers'] as $answer) { 882 883 if ($answer['case'] == 1) { 884 $use_case = 1; 885 } 886 887 } 888 889 $find_tags = array('[#answers_string#]', 890 '[#use_case#]', 891 '[#node_course_question_categories_question_category_question_answer#]'); 892 893 $replace_values = array(self::safexml($answers_string), 894 self::safexml($use_case), 895 $node_course_question_categories_question_answer); 896 897 898 899 $node_question_categories_question = str_replace($find_tags, $replace_values, $sheet_question_categories_question); 900 901 return $node_question_categories_question; 902 903 } 904 905 private function create_node_course_question_categories_question_category_question_true_false ($question) { 906 907 $node_course_question_categories_question_answer = ''; 908 909 $sheet_question_categories_question = cc112moodle::loadsheet(SHEET_COURSE_QUESTION_CATEGORIES_QUESTION_CATEGORY_QUESTION_TRUE_FALSE); 910 911 $trueanswer = null; 912 $falseanswer = null; 913 914 if (!empty($question['answers'])) { 915 916 // Identify the true and false answers. 917 foreach ($question['answers'] as $answer) { 918 if ($answer['identifier'] == 'true') { 919 $trueanswer = $answer; 920 } else if ($answer['identifier'] == 'false') { 921 $falseanswer = $answer; 922 } else { 923 // Should not happen, but just in case. 924 throw new coding_exception("Unknown answer identifier detected " . 925 "in true/false quiz question with id {$question['id']}."); 926 } 927 928 $node_course_question_categories_question_answer .= $this->create_node_course_question_categories_question_category_question_answer($answer); 929 } 930 931 // Make sure the true and false answer was found. 932 if (is_null($trueanswer) || is_null($falseanswer)) { 933 throw new coding_exception("Unable to correctly identify the " . 934 "true and false answers in the question with id {$question['id']}."); 935 } 936 } 937 938 $find_tags = array('[#node_course_question_categories_question_category_question_answer#]', 939 '[#true_answer_id#]', 940 '[#false_answer_id#]'); 941 942 $replace_values = array($node_course_question_categories_question_answer, 943 $trueanswer['id'], 944 $falseanswer['id']); 945 946 $node_question_categories_question = str_replace($find_tags, $replace_values, $sheet_question_categories_question); 947 948 return $node_question_categories_question; 949 } 950 951 private function get_answers_string ($answers) { 952 953 $answer_string = ''; 954 955 if (!empty($answers)) { 956 foreach ($answers as $answer) { 957 $answer_string .= $answer['id'] . ','; 958 } 959 } 960 961 $answer_string = !empty($answer_string) ? substr($answer_string, 0, strlen($answer_string) - 1) : ''; 962 963 return $answer_string; 964 965 } 966 967 private function create_node_course_question_categories_question_category_question_answer ($answer) { 968 969 $sheet_question_categories_question_answer = cc112moodle::loadsheet(SHEET_COURSE_QUESTION_CATEGORIES_QUESTION_CATEGORY_QUESTION_ANSWER); 970 971 $find_tags = array('[#answer_id#]', 972 '[#answer_text#]', 973 '[#answer_score#]', 974 '[#answer_feedback#]'); 975 976 $replace_values = array($answer['id'], 977 self::safexml($answer['title']), 978 $answer['score'], 979 self::safexml($answer['feedback'])); 980 981 $node_question_categories_question_answer = str_replace($find_tags, $replace_values, $sheet_question_categories_question_answer); 982 983 return $node_question_categories_question_answer; 984 } 985 986 private function get_question_type ($identifier, $assessment) { 987 988 $xpath = cc112moodle::newx_path($assessment, cc112moodle::getquizns()); 989 990 $metadata = $xpath->query('//xmlns:item[@ident="' . $identifier . '"]/xmlns:itemmetadata/xmlns:qtimetadata/xmlns:qtimetadatafield'); 991 992 foreach ($metadata as $field) { 993 994 $field_label = $xpath->query('xmlns:fieldlabel', $field); 995 $field_label = !empty($field_label->item(0)->nodeValue) ? $field_label->item(0)->nodeValue : ''; 996 997 if ($field_label == 'cc_profile') { 998 $field_entry = $xpath->query('xmlns:fieldentry', $field); 999 $type = !empty($field_entry->item(0)->nodeValue) ? $field_entry->item(0)->nodeValue : ''; 1000 } 1001 } 1002 1003 $return_type = array(); 1004 1005 $return_type['moodle'] = ''; 1006 $return_type['cc'] = $type; 1007 1008 if ($type == CC_QUIZ_MULTIPLE_CHOICE) { 1009 $return_type['moodle'] = MOODLE_QUIZ_MULTIPLE_CHOICE; 1010 } 1011 if ($type == CC_QUIZ_MULTIPLE_RESPONSE) { 1012 $return_type['moodle'] = MOODLE_QUIZ_MULTIPLE_CHOICE; 1013 } 1014 if ($type == CC_QUIZ_TRUE_FALSE) { 1015 $return_type['moodle'] = MOODLE_QUIZ_TRUE_FALSE; 1016 } 1017 if ($type == CC_QUIZ_ESSAY) { 1018 $return_type['moodle'] = MOODLE_QUIZ_ESSAY; 1019 } 1020 if ($type == CC_QUIZ_FIB) { 1021 $return_type['moodle'] = MOODLE_QUIZ_SHORTANSWER; 1022 } 1023 if ($type == CC_QUIZ_PATTERN_MACHT) { 1024 $return_type['moodle'] = MOODLE_QUIZ_SHORTANSWER; 1025 } 1026 1027 return $return_type; 1028 1029 } 1030 }
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