move method to create random hashes to Utils-class

app/Utils.inc

@@ -19,6 +19,14 @@
      */
     class Utils
     {
+        /**
+         * String length for hashes
+         *
+         * @var int
+         */
+        const HASH_LENGTH = 10;
+
+
 
 
         /**
@@ -209,6 +217,23 @@
             return $mimetype;
         }
 
+
+        /**
+         * Create a random hash string.
+         *
+         * @param   int     Length of string
+         * @return  string  String with random characters
+         */
+        public static function createRandomHash($length=self::HASH_LENGTH)
+        {
+            // Length of URL
+            $length = max(0, min(32, $length));
+
+
+            // Create and return random string
+            return substr(md5(microtime()), rand(0, 32-$length), $length);
+        }
+
     }
 
 ?>

models/CharactergroupsqueststationsModel.inc

@@ -38,12 +38,6 @@
          * @var int;
          */
         const STATUS_SOLVED = 3;
-        /**
-         * String length for Station URLs
-         *
-         * @var int
-         */
-        const URL_LENGTH = 10;
 
         /**
          * Required models
@@ -487,7 +481,7 @@
                 '(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)',
                 'iississddss',
                 $questId, $stationtypeId, $title,
-                $this->createStationUrl(), $pos,
+                \hhu\z\Utils::createRandomHash(), $pos,
                 $prolog, $task, $latitude, $longitude, $righttext, $wrongtext
             );
 
@@ -630,22 +624,6 @@
             );
         }
 
-
-        /**
-         * Generate a URL for Stations with random characters.
-         *
-         * @return  string  A string with random characters
-         */
-        private function createStationUrl()
-        {
-            // Length of URL
-            $length = max(0, min(32, self::URL_LENGTH));
-
-
-            // Create and return random string
-            return substr(md5(microtime()), rand(0, 32-$length), $length);
-        }
-
     }
 
 ?>