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import datetime
from django.conf import settings
from django.utils import simplejson
from django.http import HttpResponse, HttpResponseRedirect
from django.shortcuts import get_object_or_404
from django.utils.translation import ugettext as _
from django.template import RequestContext
from forum.models import *
from forum.forms import CloseForm
from forum import auth
from django.contrib.auth.decorators import login_required
from forum.utils.decorators import ajax_method, ajax_login_required
import logging
def vote(request, id):#refactor - pretty incomprehensible view used by various ajax calls
#issues: this subroutine is too long, contains many magic numbers and other issues
#it's called "vote" but many actions processed here have nothing to do with voting
"""
vote_type:
acceptAnswer : 0,
questionUpVote : 1,
questionDownVote : 2,
favorite : 4,
answerUpVote: 5,
answerDownVote:6,
offensiveQuestion : 7,
offensiveAnswer:8,
removeQuestion: 9,
removeAnswer:10
questionSubscribeUpdates:11
questionUnSubscribeUpdates:12
accept answer code:
response_data['allowed'] = -1, Accept his own answer 0, no allowed - Anonymous 1, Allowed - by default
response_data['success'] = 0, failed 1, Success - by default
response_data['status'] = 0, By default 1, Answer has been accepted already(Cancel)
vote code:
allowed = -3, Don't have enough votes left
-2, Don't have enough reputation score
-1, Vote his own post
0, no allowed - Anonymous
1, Allowed - by default
status = 0, By default
1, Cancel
2, Vote is too old to be canceled
offensive code:
allowed = -3, Don't have enough flags left
-2, Don't have enough reputation score to do this
0, not allowed
1, allowed
status = 0, by default
1, can't do it again
"""
response_data = {
"allowed": 1,
"success": 1,
"status" : 0,
"count" : 0,
"message" : ''
}
def __can_vote(vote_score, user):#refactor - belongs to auth.py
if vote_score == 1:#refactor magic number
return auth.can_vote_up(request.user)
else:
return auth.can_vote_down(request.user)
try:
if not request.user.is_authenticated():
response_data['allowed'] = 0
response_data['success'] = 0
elif request.is_ajax() and request.method == 'POST':
question = get_object_or_404(Question, id=id)
vote_type = request.POST.get('type')
#accept answer
if vote_type == '0':
answer_id = request.POST.get('postId')
answer = get_object_or_404(Answer, id=answer_id)
# make sure question author is current user
if question.author == request.user:
# answer user who is also question author is not allow to accept answer
if answer.author == question.author:
response_data['success'] = 0
response_data['allowed'] = -1
# check if answer has been accepted already
elif answer.accepted:
auth.onAnswerAcceptCanceled(answer, request.user)
response_data['status'] = 1
else:
# set other answers in this question not accepted first
for answer_of_question in Answer.objects.get_answers_from_question(question, request.user):
if answer_of_question != answer and answer_of_question.accepted:
auth.onAnswerAcceptCanceled(answer_of_question, request.user)
#make sure retrieve data again after above author changes, they may have related data
answer = get_object_or_404(Answer, id=answer_id)
auth.onAnswerAccept(answer, request.user)
else:
response_data['allowed'] = 0
response_data['success'] = 0
# favorite
elif vote_type == '4':
has_favorited = False
fav_questions = FavoriteQuestion.objects.filter(question=question)
# if the same question has been favorited before, then delete it
if fav_questions is not None:
for item in fav_questions:
if item.user == request.user:
item.delete()
response_data['status'] = 1
response_data['count'] = len(fav_questions) - 1
if response_data['count'] < 0:
response_data['count'] = 0
has_favorited = True
# if above deletion has not been executed, just insert a new favorite question
if not has_favorited:
new_item = FavoriteQuestion(question=question, user=request.user)
new_item.save()
response_data['count'] = FavoriteQuestion.objects.filter(question=question).count()
Question.objects.update_favorite_count(question)
elif vote_type in ['1', '2', '5', '6']:
post_id = id
post = question
vote_score = 1
if vote_type in ['5', '6']:
answer_id = request.POST.get('postId')
answer = get_object_or_404(Answer, id=answer_id)
post_id = answer_id
post = answer
if vote_type in ['2', '6']:
vote_score = -1
if post.author == request.user:
response_data['allowed'] = -1
elif not __can_vote(vote_score, request.user):
response_data['allowed'] = -2
elif post.votes.filter(user=request.user).count() > 0:
vote = post.votes.filter(user=request.user)[0]
# unvote should be less than certain time
if (datetime.datetime.now().day - vote.voted_at.day) >= auth.VOTE_RULES['scope_deny_unvote_days']:
response_data['status'] = 2
else:
voted = vote.vote
if voted > 0:
# cancel upvote
auth.onUpVotedCanceled(vote, post, request.user)
else:
# cancel downvote
auth.onDownVotedCanceled(vote, post, request.user)
response_data['status'] = 1
response_data['count'] = post.score
elif Vote.objects.get_votes_count_today_from_user(request.user) >= auth.VOTE_RULES['scope_votes_per_user_per_day']:
response_data['allowed'] = -3
else:
vote = Vote(user=request.user, content_object=post, vote=vote_score, voted_at=datetime.datetime.now())
if vote_score > 0:
# upvote
auth.onUpVoted(vote, post, request.user)
else:
# downvote
auth.onDownVoted(vote, post, request.user)
votes_left = auth.VOTE_RULES['scope_votes_per_user_per_day'] - Vote.objects.get_votes_count_today_from_user(request.user)
if votes_left <= auth.VOTE_RULES['scope_warn_votes_left']:
response_data['message'] = u'%s votes left' % votes_left
response_data['count'] = post.score
elif vote_type in ['7', '8']:
post = question
post_id = id
if vote_type == '8':
post_id = request.POST.get('postId')
post = get_object_or_404(Answer, id=post_id)
if FlaggedItem.objects.get_flagged_items_count_today(request.user) >= auth.VOTE_RULES['scope_flags_per_user_per_day']:
response_data['allowed'] = -3
elif not auth.can_flag_offensive(request.user):
response_data['allowed'] = -2
elif post.flagged_items.filter(user=request.user).count() > 0:
response_data['status'] = 1
else:
item = FlaggedItem(user=request.user, content_object=post, flagged_at=datetime.datetime.now())
auth.onFlaggedItem(item, post, request.user)
response_data['count'] = post.offensive_flag_count
# send signal when question or answer be marked offensive
mark_offensive.send(sender=post.__class__, instance=post, mark_by=request.user)
elif vote_type in ['9', '10']:
post = question
post_id = id
if vote_type == '10':
post_id = request.POST.get('postId')
post = get_object_or_404(Answer, id=post_id)
if not auth.can_delete_post(request.user, post):
response_data['allowed'] = -2
elif post.deleted == True:
logging.debug('debug restoring post in view')
auth.onDeleteCanceled(post, request.user)
response_data['status'] = 1
else:
auth.onDeleted(post, request.user)
delete_post_or_answer.send(sender=post.__class__, instance=post, delete_by=request.user)
elif vote_type == '11':#subscribe q updates
user = request.user
if user.is_authenticated():
if user not in question.followed_by.all():
question.followed_by.add(user)
if settings.EMAIL_VALIDATION == 'on' and user.email_isvalid == False:
response_data['message'] = \
_('subscription saved, %(email)s needs validation, see %(details_url)s') \
% {'email':user.email,'details_url':reverse('faq') + '#validate'}
feed_setting = EmailFeedSetting.objects.get(subscriber=user,feed_type='q_sel')
if feed_setting.frequency == 'n':
feed_setting.frequency = 'd'
feed_setting.save()
if 'message' in response_data:
response_data['message'] += '<br/>'
response_data['message'] = _('email update frequency has been set to daily')
#response_data['status'] = 1
#responst_data['allowed'] = 1
else:
pass
#response_data['status'] = 0
#response_data['allowed'] = 0
elif vote_type == '12':#unsubscribe q updates
user = request.user
if user.is_authenticated():
if user in question.followed_by.all():
question.followed_by.remove(user)
else:
response_data['success'] = 0
response_data['message'] = u'Request mode is not supported. Please try again.'
data = simplejson.dumps(response_data)
except Exception, e:
response_data['message'] = str(e)
data = simplejson.dumps(response_data)
return HttpResponse(data, mimetype="application/json")
#internally grouped views - used by the tagging system
@ajax_login_required
def mark_tag(request, tag=None, **kwargs):#tagging system
action = kwargs['action']
ts = MarkedTag.objects.filter(user=request.user, tag__name=tag)
if action == 'remove':
logging.debug('deleting tag %s' % tag)
ts.delete()
else:
reason = kwargs['reason']
if len(ts) == 0:
try:
t = Tag.objects.get(name=tag)
mt = MarkedTag(user=request.user, reason=reason, tag=t)
mt.save()
except:
pass
else:
ts.update(reason=reason)
return HttpResponse(simplejson.dumps(''), mimetype="application/json")
@ajax_login_required
def ajax_toggle_ignored_questions(request):#ajax tagging and tag-filtering system
if request.user.hide_ignored_questions:
new_hide_setting = False
else:
new_hide_setting = True
request.user.hide_ignored_questions = new_hide_setting
request.user.save()
@ajax_method
def ajax_command(request):#refactor? view processing ajax commands - note "vote" and view others do it too
if 'command' not in request.POST:
return HttpResponseForbidden(mimetype="application/json")
if request.POST['command'] == 'toggle-ignored-questions':
return ajax_toggle_ignored_questions(request)
@login_required
def close(request, id):#close question
"""view to initiate and process
question close
"""
question = get_object_or_404(Question, id=id)
if not auth.can_close_question(request.user, question):
return HttpResponse('Permission denied.')
if request.method == 'POST':
form = CloseForm(request.POST)
if form.is_valid():
reason = form.cleaned_data['reason']
question.closed = True
question.closed_by = request.user
question.closed_at = datetime.datetime.now()
question.close_reason = reason
question.save()
return HttpResponseRedirect(question.get_absolute_url())
else:
form = CloseForm()
return render_to_response('close.html', {
'form' : form,
'question' : question,
}, context_instance=RequestContext(request))
@login_required
def reopen(request, id):#re-open question
"""view to initiate and process
question close
"""
question = get_object_or_404(Question, id=id)
# open question
if not auth.can_reopen_question(request.user, question):
return HttpResponse('Permission denied.')
if request.method == 'POST' :
Question.objects.filter(id=question.id).update(closed=False,
closed_by=None, closed_at=None, close_reason=None)
return HttpResponseRedirect(question.get_absolute_url())
else:
return render_to_response('reopen.html', {
'question' : question,
}, context_instance=RequestContext(request))
#osqa-user communication system
def read_message(request):#marks message a read
if request.method == "POST":
if request.POST['formdata'] == 'required':
request.session['message_silent'] = 1
if request.user.is_authenticated():
request.user.delete_messages()
return HttpResponse('')
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