NewsBlur-viq/apps/analyzer/views.py
2013-01-28 15:43:00 -08:00

119 lines
No EOL
4.4 KiB
Python

import redis
from utils import log as logging
from django.shortcuts import get_object_or_404
from django.views.decorators.http import require_POST
from django.conf import settings
from mongoengine.queryset import NotUniqueError
from apps.rss_feeds.models import Feed
from apps.reader.models import UserSubscription
from apps.analyzer.models import MClassifierTitle, MClassifierAuthor, MClassifierFeed, MClassifierTag
from apps.analyzer.models import get_classifiers_for_user
from apps.social.models import MSocialSubscription
from utils import json_functions as json
from utils.user_functions import get_user
from utils.user_functions import ajax_login_required
def index(requst):
pass
@require_POST
@ajax_login_required
@json.json_view
def save_classifier(request):
post = request.POST
feed_id = post['feed_id']
feed = None
social_user_id = None
if feed_id.startswith('social:'):
social_user_id = int(feed_id.replace('social:', ''))
feed_id = None
else:
feed_id = int(feed_id)
feed = get_object_or_404(Feed, pk=feed_id)
code = 0
message = 'OK'
payload = {}
logging.user(request, "~FGSaving classifier: ~SB%s~SN ~FW%s" % (feed, post))
# Mark subscription as dirty, so unread counts can be recalculated
usersub = None
socialsub = None
if social_user_id:
socialsub = MSocialSubscription.objects.get(user_id=request.user.pk, subscription_user_id=social_user_id)
if not socialsub.needs_unread_recalc:
socialsub.needs_unread_recalc = True
socialsub.save()
else:
try:
usersub = UserSubscription.objects.get(user=request.user, feed=feed)
except UserSubscription.DoesNotExist:
pass
if usersub and (not usersub.needs_unread_recalc or not usersub.is_trained):
usersub.needs_unread_recalc = True
usersub.is_trained = True
usersub.save()
def _save_classifier(ClassifierCls, content_type):
classifiers = {
'like_'+content_type: 1,
'dislike_'+content_type: -1,
'remove_like_'+content_type: 0,
'remove_dislike_'+content_type: 0,
}
for opinion, score in classifiers.items():
if opinion in post:
post_contents = post.getlist(opinion)
for post_content in post_contents:
if not post_content: continue
classifier_dict = {
'user_id': request.user.pk,
'feed_id': feed_id or 0,
'social_user_id': social_user_id or 0,
'defaults': {
'score': score
}
}
if content_type in ('author', 'tag', 'title'):
classifier_dict.update({content_type: post_content})
if content_type == 'feed':
if not post_content.startswith('social:'):
classifier_dict['feed_id'] = post_content
try:
classifier, created = ClassifierCls.objects.get_or_create(**classifier_dict)
except NotUniqueError:
continue
if score == 0:
classifier.delete()
elif classifier.score != score:
if score == 0:
if ((classifier.score == 1 and opinion.startswith('remove_like'))
or (classifier.score == -1 and opinion.startswith('remove_dislike'))):
classifier.delete()
else:
classifier.score = score
classifier.save()
_save_classifier(MClassifierAuthor, 'author')
_save_classifier(MClassifierTag, 'tag')
_save_classifier(MClassifierTitle, 'title')
_save_classifier(MClassifierFeed, 'feed')
r = redis.Redis(connection_pool=settings.REDIS_POOL)
r.publish(request.user.username, 'feed:%s' % feed_id)
response = dict(code=code, message=message, payload=payload)
return response
@json.json_view
def get_classifiers_feed(request, feed_id):
user = get_user(request)
code = 0
payload = get_classifiers_for_user(user, feed_id=feed_id)
response = dict(code=code, payload=payload)
return response