Fixed some issues after peewee implementation

bazarr/get_languages.py

@@ -24,10 +24,7 @@ def load_language_in_db():
         .on_conflict(action='IGNORE') \
         .execute()
 
-    # update/insert chinese languages
-    TableSettingsLanguages.update({TableSettingsLanguages.name: 'Chinese Simplified'}) \
-        .where(TableSettingsLanguages.code2 == 'zt')\
-        .execute()
+    # insert chinese languages
     TableSettingsLanguages.insert({TableSettingsLanguages.code3: 'zht', TableSettingsLanguages.code2: 'zt',
                                    TableSettingsLanguages.name: 'Chinese Traditional'}) \
         .on_conflict(action='IGNORE')\
@@ -49,6 +46,11 @@ def load_language_in_db():
 
 def create_languages_dict():
     global languages_dict
+    # replace chinese by chinese simplified
+    TableSettingsLanguages.update({TableSettingsLanguages.name: 'Chinese Simplified'}) \
+        .where(TableSettingsLanguages.code3 == 'zho') \
+        .execute()
+
     languages_dict = TableSettingsLanguages.select(TableSettingsLanguages.name,
                                                    TableSettingsLanguages.code2,
                                                    TableSettingsLanguages.code3,

bazarr/list_subtitles.py

@@ -268,7 +268,7 @@ def list_missing_subtitles(no=None, epno=None, send_event=True):
     elif no is not None:
         episodes_subtitles_clause = (TableEpisodes.sonarrSeriesId == no)
     else:
-        episodes_subtitles_clause = ()
+        episodes_subtitles_clause = None
     episodes_subtitles = TableEpisodes.select(TableShows.sonarrSeriesId,
                                               TableEpisodes.sonarrEpisodeId,
                                               TableEpisodes.subtitles,