minor fixes

resolvers/community.py

@@ -64,10 +64,7 @@ async def get_community(_, info, slug):
 	return { community }
 
 @query.field("getCommunities")
-async def get_community(_, info, slugs):
+async def get_communities(_, info):
     with local_session() as session:
-        communities = session.query(Community).filter(Community.slug in slugs)
-        if not community:
-			return {"error": "invalid community id"}
-
-	return { communities }
+        communities = session.query(Community)
+		return { communities }