add community for topics

migration/tables/tags.py

@@ -1,7 +1,7 @@
 import json
 from datetime import datetime
 from orm.base import local_session
-from orm import Topic
+from orm import Topic, Community
 from dateutil.parser import parse as date_parse
 
 def migrate(entry):
@@ -25,7 +25,8 @@ def migrate(entry):
         # 'createdAt': ts,
         'title': entry['title'].lower(),
         'parents': [],
-        'children': []
+        'children': [],
+        'community' : Community.default_community.slug
     }
     try:
         with local_session() as session:

orm/topic.py

@@ -31,5 +31,5 @@ class Topic(Base):
 	parents = relationship(lambda: Topic, secondary=Connection, primaryjoin=slug==Connection.c.parent, secondaryjoin=slug==Connection.c.child, viewonly=True)
 	# list of Topics where the current node is the "parent" 
 	children = relationship(lambda: Topic, secondary=Connection, primaryjoin=slug==Connection.c.child, secondaryjoin=slug==Connection.c.parent)
-	community = Column(ForeignKey("community.slug"), nullable=True, comment="Community")
+	community = Column(ForeignKey("community.slug"), nullable=False, comment="Community")
 

schema.graphql

@@ -332,6 +332,7 @@ type Topic {
 	parents: [String] # NOTE: topic can have parent topics
 	children: [String] # and children
 	cat_id: String
+	community: String
 }
 
 # TODO: resolvers to add/remove topics from publication