Don't use directory when it's empty. fix #1448

couchpotato/core/downloaders/transmission/__init__.py

@@ -41,7 +41,7 @@ config = [{
                 {
                     'name': 'directory',
                     'type': 'directory',
-                    'description': 'Where should Transmission saved the downloaded files?',
+                    'description': 'Download to this directory. Keep empty for default Transmission download directory.',
                 },
                 {
                     'name': 'ratio',

couchpotato/core/downloaders/transmission/main.py

@@ -27,16 +27,18 @@ class Transmission(Downloader):
             return False
 
         # Set parameters for Transmission
+        params = {
+            'paused': self.conf('paused', default = 0),
+        }
+
+        if len(self.conf('directory', default = '')) > 0:
             folder_name = self.createFileName(data, filedata, movie)[:-len(data.get('type')) - 1]
             folder_path = os.path.join(self.conf('directory', default = ''), folder_name).rstrip(os.path.sep)
 
             # Create the empty folder to download too
             self.makeDir(folder_path)
 
-        params = {
+            params['download-dir'] = folder_path
-            'paused': self.conf('paused', default = 0),
-            'download-dir': folder_path
-        }
 
         torrent_params = {}
         if self.conf('ratio'):