def insert(article, topic, source):
db_subscription = Subscription.update_or_create(Subscription.url == source.url,
url=source.url,
name=source.name,
image=source.image_url)
db_article = Article.update_or_create(Article.url == article.url,
source=db_subscription,
publish_date=article.publish_date,
url=article.url,
author="",
title=article.title,
description=article.description,
body=article.body,
preview_image=article.preview_image_url)
db_topic = Topic.update_or_create(Topic.source == db_subscription and
Topic.name == topic.name and
Topic.url == topic.url,
source=db_subscription,
name=topic.name,
url=topic.url)
try:
ArticleTopic.get(article=db_article, topic=db_topic)
except ArticleTopic.DoesNotExist:
ArticleTopic.create(article=db_article, topic=db_topic)
