65 lines
2.2 KiB
Python
65 lines
2.2 KiB
Python
from orm import Topic, TopicSubscription, TopicStorage, Shout, User
|
|
from orm.base import local_session
|
|
from resolvers.base import mutation, query, subscription
|
|
from resolvers.zine import ShoutSubscriptions
|
|
from auth.authenticate import login_required
|
|
import asyncio
|
|
|
|
@query.field("topicsBySlugs")
|
|
async def topics_by_slugs(_, info, slugs = None):
|
|
with local_session() as session:
|
|
return await TopicStorage.get_topics(slugs)
|
|
|
|
@query.field("topicsByCommunity")
|
|
async def topics_by_community(_, info, community):
|
|
with local_session() as session:
|
|
return await TopicStorage.get_topics_by_community(community)
|
|
|
|
@query.field("topicsByAuthor")
|
|
async def topics_by_author(_, info, author):
|
|
slugs = set()
|
|
with local_session() as session:
|
|
shouts = session.query(Shout).\
|
|
filter(Shout.authors.any(User.slug == author))
|
|
for shout in shouts:
|
|
slugs.update([topic.slug for topic in shout.topics])
|
|
return await TopicStorage.get_topics(slugs)
|
|
|
|
@mutation.field("topicSubscribe")
|
|
@login_required
|
|
async def topic_subscribe(_, info, slug):
|
|
auth = info.context["request"].auth
|
|
user_id = auth.user_id
|
|
sub = TopicSubscription.create({ user: user_id, topic: slug })
|
|
return {} # type Result
|
|
|
|
@mutation.field("topicUnsubscribe")
|
|
@login_required
|
|
async def topic_unsubscribe(_, info, slug):
|
|
auth = info.context["request"].auth
|
|
user_id = auth.user_id
|
|
sub = session.query(TopicSubscription).filter(TopicSubscription.user == user_id and TopicSubscription.topic == slug).first()
|
|
with local_session() as session:
|
|
session.delete(sub)
|
|
return {} # type Result
|
|
return { "error": "session error" }
|
|
|
|
@subscription.source("topicUpdated")
|
|
async def new_shout_generator(obj, info, user_id):
|
|
try:
|
|
with local_session() as session:
|
|
topics = session.query(TopicSubscription.topic).filter(TopicSubscription.user == user_id).all()
|
|
topics = set([item.topic for item in topics])
|
|
shouts_queue = asyncio.Queue()
|
|
await ShoutSubscriptions.register_subscription(shouts_queue)
|
|
while True:
|
|
shout = await shouts_queue.get()
|
|
if topics.intersection(set(shout.topic_ids)):
|
|
yield shout
|
|
finally:
|
|
await ShoutSubscriptions.del_subscription(shouts_queue)
|
|
|
|
@subscription.field("topicUpdated")
|
|
def shout_resolver(shout, info, user_id):
|
|
return shout
|