def remove_from_cluster(self, article):
"""Removes article with id == article_id from the cluster it belongs to
If it's the only article of the cluster will delete the cluster
Return True if the article is deleted at the end or not
"""
from jarr.controllers import ClusterController
if not article.cluster_id:
return
clu_ctrl = ClusterController(self.user_id)
cluster = clu_ctrl.read(id=article.cluster_id).first()
if not cluster:
return
try:
new_art = next(new_art for new_art in cluster.articles
if new_art.id != article.id)
except StopIteration:
# only on article in cluster, deleting cluster
clu_ctrl.delete(cluster.id, delete_articles=False)
else:
if cluster.main_article_id == article.id:
cluster.main_article_id = None
clu_ctrl.enrich_cluster(cluster,
new_art,
cluster.read,
cluster.liked,
force_article_as_main=True)
self.update({'id': article.id}, {
'cluster_id': None,
'cluster_reason': None,
'cluster_score': None,
'cluster_tfidf_with': None,
'cluster_tfidf_neighbor_size': None
})
return
def test_cluster_enabled(self):
ccontr = ClusterController()
cluster = ccontr.read().first()
feed = FeedController(cluster.user_id).read(
category_id__ne=None,
id__nin=[art.feed_id for art in cluster.articles]).first()
category = feed.category
# clustering works when all is true
update_on_all_objs(articles=cluster.articles,
feeds=[feed],
cluster_enabled=True)
article = self.create_article_from(cluster, feed)
self.assertInCluster(article, cluster)
# disabling on user desactivate all clustering by default
update_on_all_objs(articles=cluster.articles,
feeds=[feed],
cluster_enabled=None)
UserController().update({'id': cluster.user_id},
{'cluster_enabled': False})
article = self.create_article_from(cluster, feed)
self.assertNotInCluster(article, cluster)
# disabling on article's feed prevents from clustering
update_on_all_objs(articles=cluster.articles,
feeds=[feed],
cluster_enabled=True)
FeedController().update({'id': feed.id}, {'cluster_enabled': False})
article = self.create_article_from(cluster, feed)
self.assertNotInCluster(article, cluster)
# disabling on feed from cluster's articles prevents from clustering
update_on_all_objs(articles=cluster.articles,
feeds=[feed],
cluster_enabled=True)
FeedController().update(
{'id__in': [a.feed_id for a in cluster.articles]},
{'cluster_enabled': False})
article = self.create_article_from(cluster, feed)
self.assertNotInCluster(article, cluster)
# disabling on article's category prevents from clustering
CategoryController(cluster.user_id).update({'id': category.id},
{'cluster_enabled': False})
article = self.create_article_from(cluster, feed)
self.assertNotInCluster(article, cluster)
update_on_all_objs(articles=cluster.articles,
feeds=[feed],
cluster_enabled=True)
article = self.create_article_from(cluster, feed)
self.assertInCluster(article, cluster)
