import re from boards.models import Post from boards.models.post import REGEX_REPLY REFLINK_PREFIX = '>>' class PostMixin: @staticmethod def _remove_invalid_links(text): """ Replace invalid links in posts so that they won't be parsed. Invalid links are links to non-existent posts """ for reply_number in re.finditer(REGEX_REPLY, text): post_id = reply_number.group(1) post = Post.objects.filter(id=post_id) if not post.exists(): text = text.replace(REFLINK_PREFIX + post_id, post_id) return text