def vote(up, id, vote_new):
"""
Vote up/down for a single word. AJAX action.
Possible votes: 0 = vote down
1 = vote up
2 = don't know
"""
word = db.Word.get_or_404(id)
vote_up = int(up) # 0, 1, or 2
directions = ('votes.down', 'votes.up')
# Remember votes, do not allow double voting.
# We cache: '<ip_addr>:<wordid> => [01]', e.g.: '127.0.0.1:43a...0001 => 1'
ip = request.remote_addr
vote = cache.get('%s:%s' % (ip, id))
if not vote or vote != up:
to_update = {} # Pending DB updates.
# Count a vote unless this is a "don't know".
if up != '2':
# If previously voted, update vote, do not recount.
if up not in (vote, '2'):
to_update[directions[int(not vote_up)]] = -1
# Cast vote now.
to_update[directions[vote_up]] = 1
db.Word.collection.update({'_id': id}, {"$inc": to_update})
# ... and remember this.
cache.set('%s:%s' % (ip, id), up,
timeout=app.config['CACHE_VOTE_TIMEOUT'])
# Index word if enough votes have been cast. If fewer,
# remove from index
word = db.Word.one({'_id': id})
if word.votes.up >= app.config['MIN_VOTES']:
elastic.index_word(word=word)
else:
elastic.remove_word(word=word)
if not request.is_xhr:
flash(u'Danke für deine Stimme!', 'success')
if vote_new:
return redirect(url_for('vote_new'))
else:
return redirect(word.to_url)
else:
return 'ok'
def vote_new():
"""Vote on new submissions."""
words = db.Word.find(
{'$and': [{'votes.up': {'$lt': app.config['MIN_VOTES']}},
{'votes.down': {'$lt': app.config['MIN_VOTES']}}]},
sort=[('url.token', pymongo.ASCENDING)])
# Find a word that's not been voted on yet
ip = request.remote_addr
myword = None
for word in words:
if cache.get('%s:%s' % (ip, word._id)) is None:
myword = word
break
return render_template('vote_new.html', word=myword)