def post_comment(request, next=None, using=None):
"""
Post a comment.
HTTP POST is required. If ``POST['submit'] == "preview"`` or if there are
errors a preview template, ``comments/preview.html``, will be rendered.
"""
# Fill out some initial data fields from an authenticated user, if present
data = request.POST.copy()
if request.user.is_authenticated():
if not data.get('name', ''):
data["name"] = request.user.get_full_name() or request.user.get_username()
if not data.get('email', ''):
data["email"] = request.user.email
# Look up the object we're trying to comment about
ctype = data.get("content_type")
object_pk = data.get("object_pk")
if ctype is None or object_pk is None:
return CommentPostBadRequest("Missing content_type or object_pk field.")
try:
model = apps.get_model("backend",ctype)
# model = apps.get_model(*ctype.split(".", 1))
target = model._default_manager.using(using).get(pk=object_pk)
except TypeError:
return CommentPostBadRequest(
"Invalid content_type value: %r" % escape(ctype))
except AttributeError:
return CommentPostBadRequest(
"The given content-type %r does not resolve to a valid model." % escape(ctype))
except ObjectDoesNotExist:
return CommentPostBadRequest(
"No object matching content-type %r and object PK %r exists." % (
escape(ctype), escape(object_pk)))
except (ValueError, ValidationError) as e:
return CommentPostBadRequest(
"Attempting go get content-type %r and object PK %r exists raised %s" % (
escape(ctype), escape(object_pk), e.__class__.__name__))
# Create the comment
comment = Comment(
content_object=target,
user_name=data["name"],
user_email=data["email"],
comment=data["comment"],
site_id=settings.SITE_ID
)
comment.ip_address = request.META.get("REMOTE_ADDR", None)
if request.user.is_authenticated():
comment.user = request.user
# Signal that the comment is about to be saved
responses = signals.comment_will_be_posted.send(
sender=comment.__class__,
comment=comment,
request=request
)
for (receiver, response) in responses:
if response is False:
return CommentPostBadRequest(
"comment_will_be_posted receiver %r killed the comment" % receiver.__name__)
# Save the comment and signal that it was saved
comment.save()
signals.comment_was_posted.send(
sender=comment.__class__,
comment=comment,
request=request
)
serializer = CommentSerializer(comment, context={'request': request})
return JsonResponse(serializer.data, safe=False)
