courserestorer.class.php

完美的在线教育系统

				if (strlen($quiz->media) > 0)
				{
					if ($this->course->resources[RESOURCE_DOCUMENT][$quiz->media]->is_restored())
					{
						$sql = "SELECT path FROM ".$table_doc." WHERE id = ".$resources[RESOURCE_DOCUMENT][$quiz->media]->destination_id;
						$doc = api_sql_query($sql, __FILE__, __LINE__);
						$doc = Database::fetch_object($doc);
						$doc = str_replace('/audio/', '', $doc->path);
					}
				}
				$sql = "INSERT INTO ".$table_qui." SET title = '".Database::escape_string($quiz->title)."', description = '".Database::escape_string($quiz->description)."', type = '".$quiz->quiz_type."', random = '".$quiz->random."', active = '".$quiz->active."', sound = '".Database::escape_string($doc)."' ";
				api_sql_query($sql, __FILE__, __LINE__);
				$new_id = Database::get_last_insert_id();
				$this->course->resources[RESOURCE_QUIZ][$id]->destination_id = $new_id;
				foreach ($quiz->question_ids as $index => $question_id)
				{
					$qid = $this->restore_quiz_question($question_id);
					$sql = "INSERT IGNORE INTO ".$table_rel." SET question_id = ".$qid.", exercice_id = ".$new_id."";
					api_sql_query($sql, __FILE__, __LINE__);
				}
			}
		}
	}
	/**
	 * Restore quiz-questions
	 */
	function restore_quiz_question($id)
	{
		$resources = $this->course->resources;
		$question = $resources[RESOURCE_QUIZQUESTION][$id];

		$new_id=0;

		if(is_object($question))
		{
			if ($question->is_restored())
			{
				return $question->destination_id;
			}
			$table_que = Database :: get_course_table(TABLE_QUIZ_QUESTION, $this->course->destination_db);
			$table_ans = Database :: get_course_table(TABLE_QUIZ_ANSWER, $this->course->destination_db);
			$sql = "INSERT INTO ".$table_que." SET question = '".addslashes($question->question)."', description = '".addslashes($question->description)."', ponderation = '".addslashes($question->ponderation)."', position = '".addslashes($question->position)."', type='".addslashes($question->quiz_type)."', picture='".addslashes($question->picture)."'";
			api_sql_query($sql, __FILE__, __LINE__);
			$new_id = Database::get_last_insert_id();
			foreach ($question->answers as $index => $answer)
			{
				$sql = "INSERT INTO ".$table_ans." SET id= '". ($index +1)."',question_id = '".$new_id."', answer = '".Database::escape_string($answer['answer'])."', correct = '".$answer['correct']."', comment = '".Database::escape_string($answer['comment'])."', ponderation='".$answer['ponderation']."', position = '".$answer['position']."', hotspot_coordinates = '".$answer['hotspot_coordinates']."', hotspot_type = '".$answer['hotspot_type']."'";
				api_sql_query($sql, __FILE__, __LINE__);
			}
			$this->course->resources[RESOURCE_QUIZQUESTION][$id]->destination_id = $new_id;
		}

		return $new_id;
	}
	/**
	 * Restore Quiz
	 */
	function restore_surveys()
	{
		if ($this->course->has_resources(RESOURCE_SURVEY))
		{
			$table_sur = Database :: get_course_table(TABLE_SURVEY, $this->course->destination_db);
			$table_que = Database :: get_course_table(TABLE_SURVEY_QUESTION, $this->course->destination_db);
			$table_ans = Database :: get_course_table(TABLE_SURVEY_QUESTION_OPTION, $this->course->destination_db);
			$resources = $this->course->resources;
			foreach ($resources[RESOURCE_SURVEY] as $id => $survey)
			{
				$doc = '';
				$sql = "INSERT INTO ".$table_sur." " .
						"SET code = '".Database::escape_string($survey->code)."', " .
						"title = '".Database::escape_string($survey->title)."', " .
						"subtitle = '".Database::escape_string($survey->subtitle)."', " .
						"author = '".Database::escape_string($survey->author)."', " .
						"lang = '".Database::escape_string($survey->lang)."', " .
						"avail_from = '".Database::escape_string($survey->avail_from)."', " .
						"avail_till = '".Database::escape_string($survey->avail_till)."', " .
						"is_shared = '".Database::escape_string($survey->is_shared)."', " .
						"template = '".Database::escape_string($survey->template)."', " .
						"intro = '".Database::escape_string($survey->intro)."', " .
						"surveythanks = '".Database::escape_string($survey->surveythanks)."', " .
						"creation_date = '".Database::escape_string($survey->creation_date)."', " .
						"invited = '0', " .
						"answered = '0', " .
						"invite_mail = '".Database::escape_string($survey->invite_mail)."', " .
						"reminder_mail = '".Database::escape_string($survey->reminder_mail)."'";
				api_sql_query($sql, __FILE__, __LINE__);
				$new_id = Database::get_last_insert_id();
				$this->course->resources[RESOURCE_SURVEY][$id]->destination_id = $new_id;
				foreach ($survey->question_ids as $index => $question_id)
				{
					$qid = $this->restore_survey_question($question_id);
					$sql = "UPDATE ".$table_que." " .
							"SET survey_id = ".$new_id." WHERE " .
							"question_id = ".$qid."";
					api_sql_query($sql, __FILE__, __LINE__);
					$sql = "UPDATE ".$table_ans." ".
							"SET survey_id = ".$new_id." WHERE " .
							"question_id = ".$qid."";
					api_sql_query($sql, __FILE__, __LINE__);
				}
			}
		}
	}
	/**
	 * Restore survey-questions
	 */
	function restore_survey_question($id)
	{
		$resources = $this->course->resources;
		$question = $resources[RESOURCE_SURVEYQUESTION][$id];

		$new_id=0;

		if(is_object($question))
		{
			if ($question->is_restored())
			{
				return $question->destination_id;
			}
			$table_que = Database :: get_course_table(TABLE_SURVEY_QUESTION, $this->course->destination_db);
			$table_ans = Database :: get_course_table(TABLE_SURVEY_QUESTION_OPTION, $this->course->destination_db);
			$sql = "INSERT INTO ".$table_que." " .
					"SET survey_id = '".addslashes($question->survey_id)."', " .
					"survey_question = '".addslashes($question->survey_question)."', " .
					"survey_question_comment = '".addslashes($question->survey_question_comment)."', " .
					"type = '".addslashes($question->survey_question_type)."', " .
					"display = '".addslashes($question->display)."', " .
					"sort = '".addslashes($question->sort)."', " .
					"shared_question_id = '".addslashes($question->shared_question_id)."', " .
					"max_value = '".addslashes($question->max_value)."' ";
			api_sql_query($sql, __FILE__, __LINE__);
			$new_id = Database::get_last_insert_id();
			foreach ($question->answers as $index => $answer)
			{
				$sql = "INSERT INTO ".$table_ans." " .
						"SET " .
						"question_id = '".addslashes($new_id)."', " .
						"option_text = '".addslashes($answer['option_text'])."', " .
						"sort = '".addslashes($answer['sort'])."', " .
						"survey_id = '".addslashes($question->survey_id)."'";

				api_sql_query($sql, __FILE__, __LINE__);
			}
			$this->course->resources[RESOURCE_SURVEYQUESTION][$id]->destination_id = $new_id;
		}

		return $new_id;
	}
	/**
	 * Restore learnpaths
	 */
	function restore_learnpaths()
	{
		if ($this->course->has_resources(RESOURCE_LEARNPATH))
		{
			$table_main 	= Database :: get_course_table(TABLE_LP_MAIN, $this->course->destination_db);
			$table_item 	= Database :: get_course_table(TABLE_LP_ITEM, $this->course->destination_db);
			$table_tool 	= Database::get_course_table(TABLE_TOOL_LIST, $this->course->destination_db);

			$resources = $this->course->resources;
			$prereq_old = array ();
			$item_old_id = array ();

			foreach ($resources[RESOURCE_LEARNPATH] as $id => $lp)
			{
				$sql = "INSERT INTO ".$table_main." " .
						"SET lp_type = '".$lp->lp_type."', " .
								"name = '".Database::escape_string($lp->name)."', " .
								"path = '".Database::escape_string($lp->path)."', " .
								"ref = '".$lp->ref."', " .
								"description = '".Database::escape_string($lp->description)."', " .
								"content_local = '".Database::escape_string($lp->content_local)."', " .
								"default_encoding = '".Database::escape_string($lp->default_encoding)."', " .
								"default_view_mod = '".Database::escape_string($lp->default_view_mod)."', " .
								"prevent_reinit = '".Database::escape_string($lp->prevent_reinit)."', " .
								"force_commit = '".Database::escape_string($lp->force_commit)."', " .
								"content_maker = '".Database::escape_string($lp->content_maker)."', " .
								"display_order = '".Database::escape_string($lp->display_order)."', " .
								"js_lib= '".Database::escape_string($lp->js_lib)."', " .
								"content_license= '".Database::escape_string($lp->content_license)."', " .
								"debug= '".Database::escape_string($lp->debug)."' ";
				api_sql_query($sql, __FILE__, __LINE__);

				$new_lp_id = Database::get_last_insert_id();

				if($lp->visibility)
				{
					$sql = "INSERT INTO $table_tool SET name='".Database::escape_string($lp->name)."', link='newscorm/lp_controller.php?action=view&lp_id=$new_lp_id', image='scormbuilder.gif', visibility='1', admin='0', address='squaregrey.gif'";
					api_sql_query($sql, __FILE__, __LINE__);
				}

				$new_item_ids = array();
				$parent_item_ids = array();
				$previous_item_ids = array();
				$next_item_ids = array();
				foreach ($lp->get_items() as $index => $item)
				{
					/*
					if ($item['id'] != 0)
					{
						 // Links in learnpath have types 'Link _self' or 'Link _blank'. We only need 'Link' here.
						 $type_parts = explode(' ',$item['type']);
						 $item['id'] = $this->course->resources[$type_parts[0]][$item['id']]->destination_id;
					}
					*/
					//Get the new ref ID for all items that are not sco (dokeos quizzes, documents, etc)
					$ref = '';
					if(!empty($item['ref']) && $lp->lp_type!='2'){
						$ref = $this->get_new_id($item['item_type'],$item['ref']);
					}else{
						$ref = $item['ref'];
					}
					//Dealing with path the same way as ref as some data has been put into path when it's a
					//local resource
					$path = Database::escape_string($item['path']);
					if(strval(intval($path)) === $path)
					{
						$path = $this->get_new_id($item['item_type'],$path);
					}
					$sql = "INSERT INTO ".$table_item." SET " .
							"lp_id = '".$new_lp_id."', " .
							"item_type='".$item['item_type']."', " .
							"ref = '".$ref."', " .
							"title = '".Database::escape_string($item['title'])."', " .
							"description ='".Database::escape_string($item['description'])."', " .
							"path = '".$path."', " .
							"min_score = '".$item['min_score']."', " .
							"max_score = '".$item['max_score']."', " .
							"mastery_score = '".$item['mastery_score']."', " .
							"parent_item_id = '".$item['parent_item_id']."', " .
							"previous_item_id = '".$item['previous_item_id']."', " .
							"next_item_id = '".$item['next_item_id']."', " .
							"display_order = '".$item['display_order']."', " .
							"prerequisite = '".Database::escape_string($item['prerequisite'])."', " .
							"parameters='".Database::escape_string($item['parameters'])."', " .
							"launch_data = '".Database::escape_string($item['launch_dataprereq_type'])."'";
					api_sql_query($sql, __FILE__, __LINE__);
					$new_item_id = Database::get_last_insert_id();
					//save a link between old and new item IDs
					$new_item_ids[$item['id']] = $new_item_id;
					//save a reference of items that need a parent_item_id refresh
					$parent_item_ids[$new_item_id] = $item['parent_item_id'];
					//save a reference of items that need a previous_item_id refresh
					$previous_item_ids[$new_item_id] = $item['previous_item_id'];
					//save a reference of items that need a next_item_id refresh
					$next_item_ids[$new_item_id] = $item['next_item_id'];
				}
				foreach ($parent_item_ids as $new_item_id => $parent_item_old_id)
				{
					$parent_new_id = 0;
					if($parent_item_old_id != 0){
						$parent_new_id = $new_item_ids[$parent_item_old_id];
					}
					$sql = "UPDATE ".$table_item." SET parent_item_id = '".$parent_new_id."' WHERE id = '".$new_item_id."'";
					api_sql_query($sql, __FILE__, __LINE__);
				}
				foreach ($previous_item_ids as $new_item_id => $previous_item_old_id)
				{
					$previous_new_id = 0;
					if($previous_item_old_id != 0){
						$previous_new_id = $new_item_ids[$previous_item_old_id];
					}
					$sql = "UPDATE ".$table_item." SET previous_item_id = '".$previous_new_id."' WHERE id = '".$new_item_id."'";
					api_sql_query($sql, __FILE__, __LINE__);
				}
				foreach ($next_item_ids as $new_item_id => $next_item_old_id)
				{
					$next_new_id = 0;
					if($next_item_old_id != 0){
						$next_new_id = $new_item_ids[$next_item_old_id];
					}
					$sql = "UPDATE ".$table_item." SET next_item_id = '".$next_new_id."' WHERE id = '".$new_item_id."'";
					api_sql_query($sql, __FILE__, __LINE__);
				}
				$this->course->resources[RESOURCE_LEARNPATH][$id]->destination_id = $new_lp_id;
			}
		}
	}
	/**
	 * Gets the new ID of one specific tool item from the tool name and the old ID
	 * @param	string	Tool name
	 * @param	integer	Old ID
	 * @return	integer	New ID
	 */
	function get_new_id($tool,$ref)
	{
		//transform $tool into one backup/restore constant
		if($tool == 'hotpotatoes'){$tool = 'document';}
		if(!empty($this->course->resources[$tool][$ref]->destination_id)){
			return $this->course->resources[$tool][$ref]->destination_id;
		}
		return '';
	}
}
?>