def cast_vote(request, comment_id, positive):
comment_ct = ContentType.objects.get_for_model(Comment)
# Check if the comment already exists
try:
existing_vote = Vote.objects.get(
parent_id=comment_id, parent_type=comment_ct,
positive=positive, user=request.user
)
existing_vote.delete()
response = {'status': 'unvote success'}
return HttpResponse(
json.dumps(response), 200, content_type="application/json")
except Vote.DoesNotExist:
try:
comment = Comment.objects.get(pk=comment_id)
# Create the vote and save it
new_vote = Vote()
new_vote.user = request.user
new_vote.positive = positive
new_vote.parent = comment
new_vote.save()
if positive:
# Send out a notification to the person who originally wrote
# the comment, if a positive vote is casted.
Vote.vote_casted.send(sender="Comments", vote=new_vote)
return APIUtilities._api_success()
except:
return APIUtilities._api_failure()
def cast_resource_revision_vote(request, resource_id, revision_id, positive):
try:
from oer.models import Resource, ResourceRevision
Resource.objects.get(pk=resource_id)
revision = ResourceRevision.objects.get(pk=revision_id)
except:
return APIUtilities._api_not_found()
# Check if the vote already exists.
try:
from django.contrib.contenttypes.models import ContentType
resource_revision_ct = ContentType.objects.get_for_model(ResourceRevision)
existing_vote = Vote.objects.get(
user=request.user, parent_type=resource_revision_ct, parent_id=revision.id,
positive=positive)
existing_vote.delete()
context = {'action': 'unvote'}
return APIUtilities._api_success(context)
except Vote.DoesNotExist:
try:
# Create the vote and save it
new_vote = Vote()
new_vote.user = request.user
new_vote.positive = positive
new_vote.parent = revision
new_vote.save()
if positive and revision.user != request.user:
Vote.resource_revision_vote_casted.send(sender="ResourceRevision", vote=new_vote)
return APIUtilities._api_success()
except:
context = {
'title': 'Unable to cast revision vote',
'message': 'We apologize as we failed to cast your vote on this resource revision. '
+ 'Please contact us if the problem persists.'
}
return APIUtilities._api_failure(context)