def create(self, file_attachment, review_request):
        comment = FileAttachmentComment(text=self.cleaned_data['review'],
                                        file_attachment=file_attachment)

        comment.timestamp = timezone.now()
        comment.save(save=True)

        draft = ReviewRequestDraft.create(review_request)
        draft.file_attachment_comments.add(comment)
        draft.save()

        return comment
Create a FileAttachmentComment based on this form.
dataset/ETHPy150Open reviewboard/reviewboard/reviewboard/attachments/forms.py/CommentFileForm.create