feat: added comment_endorsed, thread_followed and thread_unfollowed signals in mfe api (#33944)

lms/djangoapps/discussion/rest_api/api.py

@@ -68,6 +68,7 @@ from openedx.core.djangoapps.django_comment_common.models import (
 from openedx.core.djangoapps.django_comment_common.signals import (
     comment_created,
     comment_deleted,
+    comment_endorsed,
     comment_edited,
     comment_flagged,
     comment_voted,
@@ -75,7 +76,9 @@ from openedx.core.djangoapps.django_comment_common.signals import (
     thread_deleted,
     thread_edited,
     thread_flagged,
-    thread_voted
+    thread_followed,
+    thread_voted,
+    thread_unfollowed
 )
 from openedx.core.djangoapps.user_api.accounts.api import get_account_settings
 from openedx.core.lib.exceptions import CourseNotFoundError, DiscussionNotFoundError, PageNotFoundError
@@ -1352,6 +1355,8 @@ def _handle_following_field(form_value, user, cc_content, request):
         user.follow(cc_content)
     else:
         user.unfollow(cc_content)
+    signal = thread_followed if form_value else thread_unfollowed
+    signal.send(sender=None, user=user, post=cc_content)
     track_thread_followed_event(request, course, cc_content, form_value)
 
 
@@ -1416,6 +1421,15 @@ def _handle_pinned_field(pin_thread: bool, cc_content: Thread, user: User):
         cc_content.un_pin(user, cc_content.id)
 
 
+def _handle_comment_signals(update_data, comment, user, sender=None):
+    """
+    Send signals depending upon the the patch (update_data)
+    """
+    for key, value in update_data.items():
+        if key == "endorsed" and value is True:
+            comment_endorsed.send(sender=sender, user=user, post=comment)
+
+
 def create_thread(request, thread_data):
     """
     Create a thread.
@@ -1597,6 +1611,7 @@ def update_comment(request, comment_id, update_data):
         comment_edited.send(sender=None, user=request.user, post=cc_comment)
     api_comment = serializer.data
     _do_extra_actions(api_comment, cc_comment, list(update_data.keys()), actions_form, context, request)
+    _handle_comment_signals(update_data, cc_comment, request.user)
     return api_comment
 
 

lms/djangoapps/discussion/rest_api/tests/test_api.py

@@ -2752,7 +2752,12 @@ class UpdateThreadTest(
         self.register_subscription_response(self.user)
         self.register_thread()
         data = {"following": new_following}
-        result = update_thread(self.request, "test_thread", data)
+        signal_name = "thread_followed" if new_following else "thread_unfollowed"
+        mock_path = f"openedx.core.djangoapps.django_comment_common.signals.{signal_name}.send"
+        with mock.patch(mock_path) as signal_patch:
+            result = update_thread(self.request, "test_thread", data)
+            if old_following != new_following:
+                self.assertEqual(signal_patch.call_count, 1)
         assert result['following'] == new_following
         last_request_path = urlparse(httpretty.last_request().path).path  # lint-amnesty, pylint: disable=no-member
         subscription_url = f"/api/v1/users/{self.user.id}/subscriptions"
@@ -3333,7 +3338,8 @@ class UpdateCommentTest(
         [True, False],
     ))
     @ddt.unpack
-    def test_endorsed_access(self, role_name, is_thread_author, thread_type, is_comment_author):
+    @mock.patch('openedx.core.djangoapps.django_comment_common.signals.comment_endorsed.send')
+    def test_endorsed_access(self, role_name, is_thread_author, thread_type, is_comment_author, endorsed_mock):
         _assign_role_to_user(user=self.user, course_id=self.course.id, role=role_name)
         self.register_comment(
             {"user_id": str(self.user.id if is_comment_author else (self.user.id + 1))},
@@ -3348,6 +3354,7 @@ class UpdateCommentTest(
         )
         try:
             update_comment(self.request, "test_comment", {"endorsed": True})
+            self.assertEqual(endorsed_mock.call_count, 1)
             assert not expected_error
         except ValidationError as err:
             assert expected_error