feat: added endpoint for priviledged roles to delete threads of a user (#37030)

* feat: added endpoint for priviledged roles to delete threads of a user

* chore: moved forum calls to django comment common app

* fix: fixed nits

openedx/core/djangoapps/django_comment_common/comment_client/comment.py

@@ -6,6 +6,7 @@ from openedx.core.djangoapps.django_comment_common.comment_client import models,
 from .thread import Thread
 from .utils import CommentClientRequestError, get_course_key
 from forum import api as forum_api
+from forum.backends.mongodb.comments import Comment as ForumComment
 
 
 class Comment(models.Model):
@@ -97,6 +98,37 @@ class Comment(models.Model):
         soup = BeautifulSoup(self.body, 'html.parser')
         return soup.get_text()
 
+    @classmethod
+    def get_user_comment_count(cls, user_id, course_ids):
+        """
+        Returns comments and responses count of user in the given course_ids.
+        TODO: Add support for MySQL backend as well
+        """
+        query_params = {
+            "course_id": {"$in": course_ids},
+            "author_id": str(user_id),
+            "_type": "Comment"
+        }
+        return ForumComment()._collection.count_documents(query_params)  # pylint: disable=protected-access
+
+    @classmethod
+    def delete_user_comments(cls, user_id, course_ids):
+        """
+        Deletes comments and responses of user in the given course_ids.
+        TODO: Add support for MySQL backend as well
+        """
+        query_params = {
+            "course_id": {"$in": course_ids},
+            "author_id": str(user_id),
+        }
+        comments_deleted = 0
+        comments = ForumComment().get_list(**query_params)
+        for comment in comments:
+            comment_id = comment.get("_id")
+            if comment_id:
+                comments_deleted += ForumComment().delete(comment_id)
+        return comments_deleted
+
 
 def _url_for_thread_comments(thread_id):
     return f"{settings.PREFIX}/threads/{thread_id}/comments"

openedx/core/djangoapps/django_comment_common/comment_client/thread.py

@@ -9,6 +9,8 @@ from eventtracking import tracker
 from . import models, settings, utils
 from forum import api as forum_api
 from openedx.core.djangoapps.discussions.config.waffle import is_forum_v2_enabled, is_forum_v2_disabled_globally
+from forum.backends.mongodb.threads import CommentThread
+
 
 log = logging.getLogger(__name__)
 
@@ -229,6 +231,37 @@ class Thread(models.Model):
         )
         self._update_from_response(response)
 
+    @classmethod
+    def get_user_threads_count(cls, user_id, course_ids):
+        """
+        Returns threads and responses count of user in the given course_ids.
+        TODO: Add support for MySQL backend as well
+        """
+        query_params = {
+            "course_id": {"$in": course_ids},
+            "author_id": str(user_id),
+            "_type": "CommentThread"
+        }
+        return CommentThread()._collection.count_documents(query_params)  # pylint: disable=protected-access
+
+    @classmethod
+    def delete_user_threads(cls, user_id, course_ids):
+        """
+        Deletes threads of user in the given course_ids.
+        TODO: Add support for MySQL backend as well
+        """
+        query_params = {
+            "course_id": {"$in": course_ids},
+            "author_id": str(user_id),
+        }
+        threads_deleted = 0
+        threads = CommentThread().get_list(**query_params)
+        for thread in threads:
+            thread_id = thread.get("_id")
+            if thread_id:
+                threads_deleted += CommentThread().delete(thread_id)
+        return threads_deleted
+
 
 def _url_for_flag_abuse_thread(thread_id):
     return f"{settings.PREFIX}/threads/{thread_id}/abuse_flag"