The comment app sends a series of signals to allow for comment moderation and similar activities. See the introduction to signals for information about how to register for and receive these signals.
Sent just before a comment will be saved, after it’s been sanity checked and submitted. This can be used to modify the comment (in place) with posting details or other such actions.
If any receiver returns False the comment will be discarded and a 400 response will be returned.
This signal is sent at more or less the same time (just before, actually) as the Comment object’s pre_save signal.
Arguments sent with this signal:
Sent just after the comment is saved.
Arguments sent with this signal:
Sent after a comment was “flagged” in some way. Check the flag to see if this was a user requesting removal of a comment, a moderator approving/removing a comment, or some other custom user flag.
Arguments sent with this signal:
Dec 23, 2012