cache app types in the db

lib/app.php

@@ -35,6 +35,7 @@ class OC_App{
 	static private $adminForms = array();
 	static private $personalForms = array();
 	static private $appInfo = array();
+	static private $appTypes = array();
 
 	/**
 	 * @brief loads all apps
@@ -85,11 +86,7 @@ class OC_App{
 		if(is_string($types)){
 			$types=array($types);
 		}
-		$appData=self::getAppInfo($app);
-		if(!isset($appData['types'])){
-			return false;
-		}
-		$appTypes=$appData['types'];
+		$appTypes=self::getAppTypes($app);
 		foreach($types as $type){
 			if(array_search($type,$appTypes)!==false){
 				return true;
@@ -98,6 +95,32 @@ class OC_App{
 		return false;
 	}
 	
+	/**
+	 * get the types of an app
+	 * @param string $app
+	 * @return array
+	 */
+	private static function getAppTypes($app){
+		//load the cache
+		if(count(self::$appTypes)==0){
+			self::$appTypes=OC_Appconfig::getValues(false,'types');
+		}
+		
+		//get it from info.xml if we haven't cached it
+		if(!isset(self::$appTypes[$app])){
+			$appData=self::getAppInfo($app);
+			if(isset($appData['types'])){
+				self::$appTypes[$app]=$appData['types'];
+			}else{
+				self::$appTypes[$app]=array();
+			}
+			
+			OC_Appconfig::setValue($app,'types',implode(',',self::$appTypes[$app]));
+		}
+		
+		return explode(',',self::$appTypes[$app]);
+	}
+
 	/**
 	 * get all enabled apps
 	 */

lib/appconfig.php

@@ -163,4 +163,38 @@ class OC_Appconfig{
 
 		return true;
 	}
+	
+	/**
+	 * get multiply values, either the app or key can be used as wildcard by setting it to false
+	 * @param app
+	 * @param key
+	 * @return array
+	 */
+	public static function getValues($app,$key){
+		if($app!==false and $key!==false){
+			return false;
+		}
+		$where='WHERE';
+		$fields='configvalue';
+		$params=array();
+		if($app!==false){
+			$where.=' appid = ?';
+			$fields.=', configkey';
+			$params[]=$app;
+			$key='configkey';
+		}else{
+			$fields.=', appid';
+			$where.=' configkey = ?';
+			$params[]=$key;
+			$key='appid';
+		}
+		$queryString='SELECT '.$fields.' FROM *PREFIX*appconfig '.$where;
+		$query=OC_DB::prepare($queryString);
+		$result=$query->execute($params);
+		$values=array();
+		while($row=$result->fetchRow()){
+			$values[$row[$key]]=$row['configvalue'];
+		}
+		return $values;
+	}
 }