search for the first text of a Questgroup recursively (Issue #77)

controllers/SeminariesController.inc

@@ -126,10 +126,9 @@
 					
 					// Get first Questgroup text
 					$text = $this->Questgroups->getFirstQuestgroupText($questgroup['id']);
-					if(!empty($text))
+					if(!is_null($text))
 					{
-						$text = \hhu\z\Utils::shortenString($text['text'], 100, 120).' …';
-						$questgroup['text'] = $text;
+						$questgroup['text'] = \hhu\z\Utils::shortenString($text, 100, 120).' …';
 					}
 					
 					// Get cumulated data

models/QuestgroupsModel.inc

@@ -179,27 +179,47 @@
 		
 		
 		/**
-		 * Get first texts of a Questgroup.
+		 * Get the first text of a Questgroup.
 		 * 
 		 * @param	int	$questgroupId	ID of a Questgroup
-		 * @return	array			First Text of this Questgroup
+		 * @return	string			First text of this Questgroup or NULL
 		 */
 		public function getFirstQuestgroupText($questgroupId)
 		{
-			$data = $this->db->query(
-				'SELECT id, pos, text '.
-				'FROM questgrouptexts '.
-				'WHERE questgroup_id = ? '.
-				'ORDER BY pos ASC '.
-				'LIMIT 1',
-				'i',
-				$questgroupId
-			);
-			if(!empty($data)) {
-				return $data[0];
+			// Text of Questgroup itself
+			$questgroupTexts = $this->getQuestgroupTexts($questgroupId);
+			if(!empty($questgroupTexts)) {
+				return $questgroupTexts[0]['text'];
+			}
+			
+			// Text of first Quest
+			$quest = $this->Quests->getFirstQuestOfQuestgroup($questgroupId);
+			if(!is_null($quest))
+			{
+				$questText = $this->Questtexts->getFirstQuestText($quest['id']);
+				if(!is_null($questText)) {
+					return $questText;
+				}
+			}
+			
+			// Text of ChildQuestgroups
+			$questgroupHierarchy = $this->Questgroupshierarchy->getHierarchyForQuestgroup($questgroupId);
+			$childQuestgroupshierarchy = $this->Questgroupshierarchy->getChildQuestgroupshierarchy($questgroupHierarchy['id']);
+			foreach($childQuestgroupshierarchy as &$hierarchy)
+			{
+				// Get Questgroups
+				$questgroups = $this->getQuestgroupsForHierarchy($hierarchy['id'], $questgroupId);
+				foreach($questgroups as &$group)
+				{
+					$childQuestgroupText = $this->getFirstQuestgroupText($group['id']);
+					if(!is_null($childQuestgroupText)) {
+						return $childQuestgroupText;
+					}
+				}
 			}
 			
 			
+			// No text found
 			return null;
 		}
 		

models/QuesttextsModel.inc

@@ -34,6 +34,24 @@
 		
 		
 		
+		/**
+		 * Get the first text of a Quest.
+		 * 
+		 * @param	int	$questId	ID of a Quest
+		 * @return	string			First text of this Quest or NULL
+		 */
+		public function getFirstQuestText($questId)
+		{
+			$prolog = $this->getQuesttextsOfQuest($questId, 'Prolog');
+			if(!empty($prolog)) {
+				return $prolog[0]['text'];
+			}
+			
+			
+			return null;
+		}
+		
+		
 		/**
 		 * Get all Questtexts for a Quest.
 		 *