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Moodle
2.2.1
http://www.collinsharper.com
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Moodle
2.2.1
http://www.collinsharper.com
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00001 <?php 00002 // This file is part of Moodle - http://moodle.org/ 00003 // 00004 // Moodle is free software: you can redistribute it and/or modify 00005 // it under the terms of the GNU General Public License as published by 00006 // the Free Software Foundation, either version 3 of the License, or 00007 // (at your option) any later version. 00008 // 00009 // Moodle is distributed in the hope that it will be useful, 00010 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00012 // GNU General Public License for more details. 00013 // 00014 // You should have received a copy of the GNU General Public License 00015 // along with Moodle. If not, see <http://www.gnu.org/licenses/>. 00023 defined('MOODLE_INTERNAL') or die('Direct access to this script is forbidden.'); 00024 00025 require_once($CFG->dirroot . '/backup/cc/entities.class.php'); 00026 require_once($CFG->dirroot . '/backup/cc/entity.label.class.php'); 00027 require_once($CFG->dirroot . '/backup/cc/entity.resource.class.php'); 00028 require_once($CFG->dirroot . '/backup/cc/entity.forum.class.php'); 00029 require_once($CFG->dirroot . '/backup/cc/entity.quiz.class.php'); 00030 00031 class cc2moodle { 00032 00033 const CC_TYPE_FORUM = 'imsdt_xmlv1p0'; 00034 const CC_TYPE_QUIZ = 'imsqti_xmlv1p2/imscc_xmlv1p0/assessment'; 00035 const CC_TYPE_QUESTION_BANK = 'imsqti_xmlv1p2/imscc_xmlv1p0/question-bank'; 00036 const CC_TYPE_WEBLINK = 'imswl_xmlv1p0'; 00037 const CC_TYPE_WEBCONTENT = 'webcontent'; 00038 const CC_TYPE_ASSOCIATED_CONTENT = 'associatedcontent/imscc_xmlv1p0/learning-application-resource'; 00039 const CC_TYPE_EMPTY = ''; 00040 00041 public static $restypes = array('associatedcontent/imscc_xmlv1p0/learning-application-resource', 'webcontent'); 00042 public static $forumns = array('dt' => 'http://www.imsglobal.org/xsd/imsdt_v1p0'); 00043 public static $quizns = array('xmlns' => 'http://www.imsglobal.org/xsd/ims_qtiasiv1p2'); 00044 public static $resourcens = array('wl' => 'http://www.imsglobal.org/xsd/imswl_v1p0'); 00049 public static function getquizns() { 00050 return static::$quizns; 00051 } 00052 00057 public static function getforumns() { 00058 return static::$forumns; 00059 } 00060 00065 public static function getresourcens() { 00066 return static::$resourcens; 00067 } 00068 00069 public static function get_manifest($folder) { 00070 if (!is_dir($folder)) { 00071 return false; 00072 } 00073 00074 $result = false; 00075 try { 00076 $dirIter = new RecursiveDirectoryIterator($folder, RecursiveDirectoryIterator::KEY_AS_PATHNAME); 00077 $recIter = new RecursiveIteratorIterator($dirIter, RecursiveIteratorIterator::CHILD_FIRST); 00078 foreach ($recIter as $info) { 00079 if ($info->isFile() && ($info->getFilename() == 'imsmanifest.xml')) { 00080 $result = $info->getPathname(); 00081 break; 00082 } 00083 } 00084 } catch (Exception $e) {} 00085 00086 return $result; 00087 } 00088 00089 public static $instances = array(); 00090 public static $manifest; 00091 public static $path_to_manifest_folder; 00092 00093 public static $namespaces = array('imscc' => 'http://www.imsglobal.org/xsd/imscc/imscp_v1p1', 00094 'lomimscc' => 'http://ltsc.ieee.org/xsd/imscc/LOM', 00095 'lom' => 'http://ltsc.ieee.org/xsd/LOM', 00096 'voc' => 'http://ltsc.ieee.org/xsd/LOM/vocab', 00097 'xsi' => 'http://www.w3.org/2001/XMLSchema-instance', 00098 'cc' => 'http://www.imsglobal.org/xsd/imsccauth_v1p0'); 00099 00100 function __construct ($path_to_manifest) { 00101 00102 static::$manifest = new DOMDocument(); 00103 static::$manifest->validateOnParse = false; 00104 00105 static::$path_to_manifest_folder = dirname($path_to_manifest); 00106 00107 static::log_action('Proccess start'); 00108 static::log_action('Load the manifest file: ' . $path_to_manifest); 00109 00110 if (!static::$manifest->load($path_to_manifest, LIBXML_NONET)) { 00111 static::log_action('Cannot load the manifest file: ' . $path_to_manifest, true); 00112 } 00113 } 00114 00115 public function is_auth () { 00116 00117 $xpath = static::newx_path(static::$manifest, static::$namespaces); 00118 00119 $count_auth = $xpath->evaluate('count(/imscc:manifest/cc:authorizations)'); 00120 00121 if ($count_auth > 0) { 00122 $response = true; 00123 } else { 00124 $response = false; 00125 } 00126 00127 return $response; 00128 } 00129 00130 protected function get_metadata ($section, $key) { 00131 00132 $xpath = static::newx_path(static::$manifest, static::$namespaces); 00133 00134 $metadata = $xpath->query('/imscc:manifest/imscc:metadata/lomimscc:lom/lomimscc:' . $section . '/lomimscc:' . $key . '/lomimscc:string'); 00135 $value = !empty($metadata->item(0)->nodeValue) ? $metadata->item(0)->nodeValue : ''; 00136 00137 return $value; 00138 } 00139 00140 public function generate_moodle_xml () { 00141 00142 global $CFG; 00143 00144 $cdir = static::$path_to_manifest_folder . DIRECTORY_SEPARATOR . 'course_files'; 00145 00146 if (!file_exists($cdir)) { 00147 mkdir($cdir); 00148 } 00149 00150 $sheet_base = static::loadsheet(SHEET_BASE); 00151 00152 // MOODLE_BACKUP / INFO / DETAILS / MOD 00153 $node_info_details_mod = $this->create_code_info_details_mod(); 00154 00155 // MOODLE_BACKUP / BLOCKS / BLOCK 00156 $node_course_blocks_block = $this->create_node_course_blocks_block(); 00157 00158 // MOODLE_BACKUP / COURSES / SECTIONS / SECTION 00159 $node_course_sections_section = $this->create_node_course_sections_section(); 00160 00161 // MOODLE_BACKUP / COURSES / QUESTION_CATEGORIES 00162 $node_course_question_categories = $this->create_node_question_categories(); 00163 00164 // MOODLE_BACKUP / COURSES / MODULES / MOD 00165 $node_course_modules_mod = $this->create_node_course_modules_mod(); 00166 00167 // MOODLE_BACKUP / COURSE / HEADER 00168 $node_course_header = $this->create_node_course_header(); 00169 00170 // GENERAL INFO 00171 $filename = optional_param('file', 'not_available.zip', PARAM_RAW); 00172 $filename = basename($filename); 00173 00174 $www_root = $CFG->wwwroot; 00175 00176 $find_tags = array('[#zip_filename#]', 00177 '[#www_root#]', 00178 '[#node_course_header#]', 00179 '[#node_info_details_mod#]', 00180 '[#node_course_blocks_block#]', 00181 '[#node_course_sections_section#]', 00182 '[#node_course_question_categories#]', 00183 '[#node_course_modules#]'); 00184 00185 $replace_values = array($filename, 00186 $www_root, 00187 $node_course_header, 00188 $node_info_details_mod, 00189 $node_course_blocks_block, 00190 $node_course_sections_section, 00191 $node_course_question_categories, 00192 $node_course_modules_mod); 00193 00194 $result_xml = str_replace($find_tags, $replace_values, $sheet_base); 00195 00196 // COPY RESOURSE FILES 00197 $entities = new entities(); 00198 00199 $entities->move_all_files(); 00200 00201 if (array_key_exists("index", self::$instances)) { 00202 00203 if (!file_put_contents(static::$path_to_manifest_folder . DIRECTORY_SEPARATOR . 'moodle.xml', $result_xml)) { 00204 static::log_action('Cannot save the moodle manifest file: ' . static::$path_to_tmp_folder . DIRECTORY_SEPARATOR . 'moodle.xml', true); 00205 } else { 00206 $status = true; 00207 } 00208 00209 } else { 00210 $status = false; 00211 notify('The course is empty'); 00212 static::log_action('The course is empty', false); 00213 } 00214 00215 return $status; 00216 00217 } 00218 00219 protected function get_sections_numbers ($instances) { 00220 00221 $count = 0; 00222 00223 if (array_key_exists("index", $instances)) { 00224 foreach ($instances["index"] as $instance) { 00225 if ($instance["deep"] == ROOT_DEEP) { 00226 $count++; 00227 } 00228 } 00229 } 00230 00231 return $count; 00232 } 00233 00234 protected function create_node_course_header () { 00235 00236 $node_course_header = ''; 00237 $sheet_course_header = static::loadsheet(SHEET_COURSE_HEADER); 00238 00239 $course_title = trim($this->get_metadata('general', 'title')); 00240 $course_title = empty($course_title) ? 'Untitled Course' : $course_title; 00241 $course_description = $this->get_metadata('general', 'description'); 00242 $section_count = $this->get_sections_numbers(static::$instances) - 1; 00243 00244 if ($section_count == -1) { 00245 $section_count = 0; 00246 } 00247 00248 if (empty($course_title)) { 00249 $this->log_action('The course title not found', true); 00250 } 00251 00252 $course_short_name = $this->create_course_code($course_title); 00253 00254 $find_tags = array('[#course_name#]', 00255 '[#course_short_name#]', 00256 '[#course_description#]', 00257 '[#date_now#]', 00258 '[#section_count#]'); 00259 00260 $replace_values = array(entities::safexml($course_title), 00261 entities::safexml($course_short_name), 00262 entities::safexml($course_description), 00263 time(), 00264 $section_count); 00265 00266 $node_course_header = str_replace($find_tags, $replace_values, $sheet_course_header); 00267 00268 return $node_course_header; 00269 } 00270 00271 protected function create_node_question_categories () { 00272 00273 $quiz = new cc_quiz(); 00274 00275 static::log_action('Creating node: QUESTION_CATEGORIES'); 00276 00277 $node_course_question_categories = $quiz->generate_node_question_categories(); 00278 00279 return $node_course_question_categories; 00280 } 00281 00282 protected function create_node_course_modules_mod () { 00283 00284 $labels = new cc_label(); 00285 $resources = new cc_resource(); 00286 $forums = new cc_forum(); 00287 $quiz = new cc_quiz(); 00288 00289 static::log_action('Creating node: COURSE/MODULES/MOD'); 00290 00291 // LABELS 00292 $node_course_modules_mod_label = $labels->generate_node(); 00293 00294 // RESOURCES (WEB CONTENT AND WEB LINK) 00295 $node_course_modules_mod_resource = $resources->generate_node(); 00296 00297 // FORUMS 00298 $node_course_modules_mod_forum = $forums->generate_node(); 00299 00300 // QUIZ 00301 $node_course_modules_mod_quiz = $quiz->generate_node_course_modules_mod(); 00302 //TODO: label 00303 $node_course_modules = $node_course_modules_mod_label . $node_course_modules_mod_resource . $node_course_modules_mod_forum . $node_course_modules_mod_quiz; 00304 00305 return $node_course_modules; 00306 } 00307 00308 00309 protected function create_node_course_sections_section () { 00310 00311 static::log_action('Creating node: COURSE/SECTIONS/SECTION'); 00312 00313 $node_course_sections_section = ''; 00314 $sheet_course_sections_section = static::loadsheet(SHEET_COURSE_SECTIONS_SECTION); 00315 00316 $topics = $this->get_nodes_by_criteria('deep', ROOT_DEEP); 00317 00318 $i = 0; 00319 00320 if (!empty($topics)) { 00321 00322 foreach ($topics as $topic) { 00323 00324 $i++; 00325 $node_node_course_sections_section_mods_mod = $this->create_node_course_sections_section_mods_mod($topic['index']); 00326 00327 if ($topic['moodle_type'] == MOODLE_TYPE_LABEL) { 00328 00329 $find_tags = array('[#section_id#]', 00330 '[#section_number#]', 00331 '[#section_summary#]', 00332 '[#node_course_sections_section_mods_mod#]'); 00333 00334 $replace_values = array($i, 00335 $i - 1, 00336 $topic['title'], 00337 $node_node_course_sections_section_mods_mod); 00338 00339 } else { 00340 00341 $find_tags = array('[#section_id#]', 00342 '[#section_number#]', 00343 '[#section_summary#]', 00344 '[#node_course_sections_section_mods_mod#]'); 00345 00346 $replace_values = array($i, 00347 $i - 1, 00348 '', 00349 $node_node_course_sections_section_mods_mod); 00350 00351 } 00352 00353 $node_course_sections_section .= str_replace($find_tags, $replace_values, $sheet_course_sections_section); 00354 } 00355 } 00356 00357 00358 return $node_course_sections_section; 00359 } 00360 00361 protected function create_node_course_blocks_block () { 00362 00363 global $CFG; 00364 00365 static::log_action('Creating node: COURSE/BLOCKS/BLOCK'); 00366 00367 $sheet_course_blocks_block = static::loadsheet(SHEET_COURSE_BLOCKS_BLOCK); 00368 $node_course_blocks_block = ''; 00369 00370 $format_config = $CFG->dirroot . '/course/format/weeks/config.php'; 00371 00372 if (@is_file($format_config) && is_readable($format_config)) { 00373 require ($format_config); 00374 } 00375 00376 if (!empty($format['defaultblocks'])) { 00377 $blocknames = $format['defaultblocks']; 00378 } else { 00379 if (!empty($CFG->defaultblocks)) { 00380 $blocknames = $CFG->defaultblocks; 00381 } else { 00382 $blocknames = 'participants,activity_modules,search_forums,course_list:news_items,calendar_upcoming,recent_activity'; 00383 } 00384 } 00385 00386 $blocknames = explode(':', $blocknames); 00387 $blocks_left = explode(',', $blocknames[0]); 00388 $blocks_right = explode(',', $blocknames[1]); 00389 00390 $find_tags = array('[#block_id#]', 00391 '[#block_name#]', 00392 '[#block_position#]', 00393 '[#block_weight#]'); 00394 00395 $i = 0; 00396 $weight = 0; 00397 00398 foreach ($blocks_left as $block) { 00399 $i++; 00400 $weight++; 00401 00402 $replace_values = array($i, 00403 $block, 00404 'l', 00405 $weight); 00406 00407 $node_course_blocks_block .= str_replace($find_tags, $replace_values, $sheet_course_blocks_block); 00408 } 00409 00410 $weight = 0; 00411 00412 foreach ($blocks_right as $block) { 00413 00414 $i++; 00415 $weight ++; 00416 00417 $replace_values = array($i, 00418 $block, 00419 'r', 00420 $weight); 00421 00422 $node_course_blocks_block .= str_replace($find_tags, $replace_values, $sheet_course_blocks_block); 00423 } 00424 00425 return $node_course_blocks_block; 00426 00427 } 00428 00435 protected function get_module_visible($identifier) { 00436 //Should item be hidden or not 00437 $mod_visible = 1; 00438 if (!empty($identifier)) { 00439 $xpath = static::newx_path(static::$manifest, static::$namespaces); 00440 $query = '/imscc:manifest/imscc:resources/imscc:resource[@identifier="' . $identifier . '"]'; 00441 $query .= '//lom:intendedEndUserRole/voc:vocabulary/lom:value'; 00442 $intendeduserrole = $xpath->query($query); 00443 if (!empty($intendeduserrole) && ($intendeduserrole->length > 0)) { 00444 $role = trim($intendeduserrole->item(0)->nodeValue); 00445 if (strcasecmp('Instructor', $role) == 0) { 00446 $mod_visible = 0; 00447 } 00448 } 00449 } 00450 return $mod_visible; 00451 } 00452 00453 protected function create_node_course_sections_section_mods_mod ($root_parent) { 00454 00455 $sheet_course_sections_section_mods_mod = static::loadsheet(SHEET_COURSE_SECTIONS_SECTION_MODS_MOD); 00456 $childs = $this->get_nodes_by_criteria('root_parent', $root_parent); 00457 00458 if ($childs) { 00459 00460 $node_course_sections_section_mods_mod = ''; 00461 00462 foreach ($childs as $child) { 00463 00464 if ($child['moodle_type'] == MOODLE_TYPE_LABEL) { 00465 if ($child['index'] == $child['root_parent']) { 00466 $is_summary = true; 00467 } else { 00468 $is_summary = false; 00469 } 00470 } else { 00471 $is_summary = false; 00472 } 00473 00474 if (!$is_summary) { 00475 00476 $indent = $child['deep'] - ROOT_DEEP; 00477 00478 if ($indent > 0) { 00479 $indent = $indent - 1; 00480 } 00481 00482 $find_tags = array('[#mod_id#]', 00483 '[#mod_instance_id#]', 00484 '[#mod_type#]', 00485 '[#date_now#]', 00486 '[#mod_indent#]', 00487 '[#mod_visible#]'); 00488 00489 $replace_values = array($child['index'], 00490 $child['instance'], 00491 $child['moodle_type'], 00492 time(), 00493 $indent, 00494 $this->get_module_visible($child['resource_indentifier'])); 00495 00496 $node_course_sections_section_mods_mod .= str_replace($find_tags, $replace_values, $sheet_course_sections_section_mods_mod); 00497 } 00498 } 00499 00500 $response = $node_course_sections_section_mods_mod; 00501 00502 } else { 00503 $response = ''; 00504 } 00505 00506 return $response; 00507 00508 } 00509 00510 public function get_nodes_by_criteria ($key, $value) { 00511 00512 $response = array(); 00513 00514 if (array_key_exists('index', static::$instances)) { 00515 foreach (static::$instances['index'] as $item) { 00516 if ($item[$key] == $value) { 00517 $response[] = $item; 00518 } 00519 } 00520 } 00521 00522 return $response; 00523 } 00524 00525 //Modified here 00526 protected function create_code_info_details_mod () { 00527 00528 static::log_action('Creating node: INFO/DETAILS/MOD'); 00529 00530 $xpath = static::newx_path(static::$manifest, static::$namespaces); 00531 00532 $items = $xpath->query('/imscc:manifest/imscc:organizations/imscc:organization/imscc:item | /imscc:manifest/imscc:resources/imscc:resource[@type="' . static::CC_TYPE_QUESTION_BANK . '"]'); 00533 00534 $this->create_instances($items); 00535 00536 $count_quiz = $this->count_instances(MOODLE_TYPE_QUIZ); 00537 $count_forum = $this->count_instances(MOODLE_TYPE_FORUM); 00538 $count_resource = $this->count_instances(MOODLE_TYPE_RESOURCE); 00539 $count_label = $this->count_instances(MOODLE_TYPE_LABEL); 00540 00541 $sheet_info_details_mod_instances_instance = static::loadsheet(SHEET_INFO_DETAILS_MOD_INSTANCE); 00542 00543 if ($count_resource > 0) { 00544 $resource_instance = $this->create_mod_info_details_mod_instances_instance($sheet_info_details_mod_instances_instance, $count_resource, static::$instances['instances'][MOODLE_TYPE_RESOURCE]); 00545 } 00546 if ($count_quiz > 0) { 00547 $quiz_instance = $this->create_mod_info_details_mod_instances_instance($sheet_info_details_mod_instances_instance, $count_quiz, static::$instances['instances'][MOODLE_TYPE_QUIZ]); 00548 } 00549 if ($count_forum > 0) { 00550 $forum_instance = $this->create_mod_info_details_mod_instances_instance($sheet_info_details_mod_instances_instance, $count_forum, static::$instances['instances'][MOODLE_TYPE_FORUM]); 00551 } 00552 if ($count_label > 0) { 00553 $label_instance = $this->create_mod_info_details_mod_instances_instance($sheet_info_details_mod_instances_instance, $count_label, static::$instances['instances'][MOODLE_TYPE_LABEL]); 00554 } 00555 00556 $resource_mod = $count_resource ? $this->create_mod_info_details_mod(MOODLE_TYPE_RESOURCE, $resource_instance) : ''; 00557 $quiz_mod = $count_quiz ? $this->create_mod_info_details_mod(MOODLE_TYPE_QUIZ, $quiz_instance) : ''; 00558 $forum_mod = $count_forum ? $this->create_mod_info_details_mod(MOODLE_TYPE_FORUM, $forum_instance) : ''; 00559 $label_mod = $count_label ? $this->create_mod_info_details_mod(MOODLE_TYPE_LABEL, $label_instance) : ''; 00560 00561 //TODO: label 00562 return $label_mod . $resource_mod . $quiz_mod . $forum_mod; 00563 00564 } 00565 00566 protected function create_mod_info_details_mod ($mod_type, $node_info_details_mod_instances_instance) { 00567 00568 $sheet_info_details_mod = static::loadsheet(SHEET_INFO_DETAILS_MOD); 00569 00570 $find_tags = array('[#mod_type#]' ,'[#node_info_details_mod_instances_instance#]'); 00571 $replace_values = array($mod_type , $node_info_details_mod_instances_instance); 00572 00573 return str_replace($find_tags, $replace_values, $sheet_info_details_mod); 00574 } 00575 00576 protected function create_mod_info_details_mod_instances_instance ($sheet, $instances_quantity, $instances) { 00577 00578 $instance = ''; 00579 00580 $find_tags = array('[#mod_instance_id#]', 00581 '[#mod_name#]', 00582 '[#mod_user_info#]'); 00583 00584 for ($i = 1; $i <= $instances_quantity; $i++) { 00585 00586 $user_info = ($instances[$i - 1]['common_cartriedge_type'] == static::CC_TYPE_FORUM) ? 'true' : 'false'; 00587 if ($instances[$i - 1]['common_cartriedge_type'] == static::CC_TYPE_EMPTY) { 00588 if ($instances[$i - 1]['deep'] <= ROOT_DEEP ) { 00589 continue; 00590 } 00591 } 00592 00593 $replace_values = array($instances[$i - 1]['instance'], 00594 entities::safexml($instances[$i - 1]['title']), 00595 $user_info); 00596 00597 $instance .= str_replace($find_tags, $replace_values, $sheet); 00598 } 00599 00600 return $instance; 00601 00602 } 00603 00604 protected function create_instances ($items, $level = 0, &$array_index = 0, $index_root = 0) { 00605 00606 $level++; 00607 $i = 1; 00608 00609 if ($items) { 00610 00611 $xpath = self::newx_path(static::$manifest, static::$namespaces); 00612 00613 foreach ($items as $item) { 00614 00615 $array_index++; 00616 00617 if ($item->nodeName == "item") { 00618 00619 $identifierref = $xpath->query('@identifierref', $item); 00620 $identifierref = !empty($identifierref->item(0)->nodeValue) ? $identifierref->item(0)->nodeValue : ''; 00621 00622 $title = $xpath->query('imscc:title', $item); 00623 $title = !empty($title->item(0)->nodeValue) ? $title->item(0)->nodeValue : ''; 00624 00625 $cc_type = $this->get_item_cc_type($identifierref); 00626 $moodle_type = $this->convert_to_moodle_type($cc_type); 00627 } 00628 elseif ($item->nodeName == "resource") { 00629 00630 $identifierref = $xpath->query('@identifier', $item); 00631 $identifierref = !empty($identifierref->item(0)->nodeValue) ? $identifierref->item(0)->nodeValue : ''; 00632 00633 $cc_type = $this->get_item_cc_type($identifierref); 00634 $moodle_type = $this->convert_to_moodle_type($cc_type); 00635 00636 $title = 'Quiz Bank ' . ($this->count_instances($moodle_type) + 1); 00637 00638 } 00639 00640 if ($level == ROOT_DEEP) { 00641 $index_root = $array_index; 00642 } 00643 00644 static::$instances['index'][$array_index]['common_cartriedge_type'] = $cc_type; 00645 static::$instances['index'][$array_index]['moodle_type'] = $moodle_type; 00646 static::$instances['index'][$array_index]['title'] = $title ? $title : ''; 00647 static::$instances['index'][$array_index]['root_parent'] = $index_root; 00648 static::$instances['index'][$array_index]['index'] = $array_index; 00649 static::$instances['index'][$array_index]['deep'] = $level; 00650 static::$instances['index'][$array_index]['instance'] = $this->count_instances($moodle_type); 00651 static::$instances['index'][$array_index]['resource_indentifier'] = $identifierref; 00652 00653 static::$instances['instances'][$moodle_type][] = array('title' => $title, 00654 'instance' => static::$instances['index'][$array_index]['instance'], 00655 'common_cartriedge_type' => $cc_type, 00656 'resource_indentifier' => $identifierref, 00657 'deep' => $level); 00658 00659 $more_items = $xpath->query('imscc:item', $item); 00660 00661 if ($more_items->length > 0) { 00662 $this->create_instances($more_items, $level, $array_index, $index_root); 00663 } 00664 00665 $i++; 00666 00667 } 00668 } 00669 } 00670 00671 public function count_instances ($type) { 00672 00673 $quantity = 0; 00674 00675 if (array_key_exists('index', static::$instances)) { 00676 if (static::$instances['index'] && $type) { 00677 00678 foreach (static::$instances['index'] as $instance) { 00679 if (!empty($instance['moodle_type'])) { 00680 $types[] = $instance['moodle_type']; 00681 } 00682 } 00683 00684 $quantity_instances = array_count_values($types); 00685 $quantity = array_key_exists($type, $quantity_instances) ? $quantity_instances[$type] : 0; 00686 } 00687 } 00688 00689 return $quantity; 00690 } 00691 00692 public function convert_to_moodle_type ($cc_type) { 00693 $type = TYPE_UNKNOWN; 00694 00695 if ($cc_type == static::CC_TYPE_FORUM) { 00696 $type = MOODLE_TYPE_FORUM; 00697 } 00698 00699 if ($cc_type == static::CC_TYPE_QUIZ) { 00700 $type = MOODLE_TYPE_QUIZ; 00701 } 00702 00703 if ($cc_type == static::CC_TYPE_WEBLINK) { 00704 $type = MOODLE_TYPE_RESOURCE; 00705 } 00706 00707 if ($cc_type == static::CC_TYPE_WEBCONTENT) { 00708 $type = MOODLE_TYPE_RESOURCE; 00709 } 00710 00711 if ($cc_type == static::CC_TYPE_ASSOCIATED_CONTENT) { 00712 $type = MOODLE_TYPE_RESOURCE; 00713 } 00714 00715 if ($cc_type == static::CC_TYPE_QUESTION_BANK) { 00716 $type = MOODLE_TYPE_QUESTION_BANK; 00717 } 00718 //TODO: label 00719 if ($cc_type == static::CC_TYPE_EMPTY) { 00720 $type = MOODLE_TYPE_LABEL; 00721 } 00722 00723 return $type; 00724 } 00725 00726 public function get_item_cc_type ($identifier) { 00727 00728 $xpath = static::newx_path(static::$manifest, static::$namespaces); 00729 00730 $nodes = $xpath->query('/imscc:manifest/imscc:resources/imscc:resource[@identifier="' . $identifier . '"]/@type'); 00731 00732 if ($nodes && !empty($nodes->item(0)->nodeValue)) { 00733 return $nodes->item(0)->nodeValue; 00734 } else { 00735 return ''; 00736 } 00737 } 00738 00739 public static function newx_path (DOMDocument $manifest, $namespaces = '') { 00740 00741 $xpath = new DOMXPath($manifest); 00742 00743 if (!empty($namespaces)) { 00744 foreach ($namespaces as $prefix => $ns) { 00745 if (!$xpath->registerNamespace($prefix, $ns)) { 00746 static::log_action('Cannot register the namespace: ' . $prefix . ':' . $ns, true); 00747 } 00748 } 00749 } 00750 00751 return $xpath; 00752 } 00753 00754 public static function loadsheet ($file) { 00755 00756 $content = (is_readable($file) && ($content = file_get_contents($file))) ? $content : false; 00757 00758 static::log_action('Loading sheet: ' . $file); 00759 00760 if (!$content) { 00761 static::log_action('Cannot load the xml sheet: ' . $file, true); 00762 } 00763 00764 static::log_action('Load OK!'); 00765 00766 return $content; 00767 } 00768 00769 public static function log_file() { 00770 return static::$path_to_manifest_folder . DIRECTORY_SEPARATOR . 'cc2moodle.log'; 00771 } 00772 00773 public static function log_action ($text, $critical_error = false) { 00774 00775 $full_message = strtoupper(date("j/n/Y g:i:s a")) . " - " . $text . "\r"; 00776 00777 file_put_contents(static::log_file(), $full_message, FILE_APPEND); 00778 00779 if ($critical_error) { 00780 static::critical_error($text); 00781 } 00782 } 00783 00784 protected function critical_error ($text) { 00785 00786 $path_to_log = static::log_file(); 00787 00788 echo ' 00789 00790 <p> 00791 <hr />A critical error has been found! 00792 00793 <p>' . $text . '</p> 00794 00795 00796 <p> 00797 The process has been stopped. Please see the <a href="' . $path_to_log . '">log file</a> for more information.</p> 00798 00799 <p>Log: ' . $path_to_log . '</p> 00800 00801 <hr /> 00802 00803 </p> 00804 '; 00805 00806 die(); 00807 } 00808 00809 protected function create_course_code ($title) { 00810 //Making sure that text of the short name does not go over the DB limit. 00811 //and leaving the space to add additional characters by the platform 00812 $code = substr(strtoupper(str_replace(' ', '', trim($title))),0,94); 00813 return $code; 00814 } 00815 }
1.7.6.1 
