Revert "Revert "Merge pull request #16447 from appsembler/omar/hide-library-button""

This reverts commit 7696727f.

cms/djangoapps/contentstore/views/library.py

@@ -58,7 +58,7 @@ def get_library_creator_status(user):
     elif settings.FEATURES.get('ENABLE_CREATOR_GROUP', False):
         return get_course_creator_status(user) == 'granted'
     else:
-        return True
+        return not settings.FEATURES.get('DISABLE_COURSE_CREATION', False)
 
 
 @login_required

cms/djangoapps/contentstore/views/tests/test_library.py

@@ -28,6 +28,7 @@ def make_url_for_lib(key):
 
 
 @ddt.ddt
+@mock.patch.dict('django.conf.settings.FEATURES', {'DISABLE_COURSE_CREATION': False})
 class UnitTestLibraries(CourseTestCase):
     """
     Unit tests for library views
@@ -63,6 +64,17 @@ class UnitTestLibraries(CourseTestCase):
         _, nostaff_user = self.create_non_staff_authed_user_client()
         self.assertEqual(get_library_creator_status(nostaff_user), True)
 
+    @mock.patch.dict('django.conf.settings.FEATURES', {'DISABLE_COURSE_CREATION': True})
+    @mock.patch("contentstore.views.library.LIBRARIES_ENABLED", True)
+    def test_library_creator_status_with_no_course_creator_role_and_disabled_nonstaff_course_creation(self):
+        """
+        Ensure that `DISABLE_COURSE_CREATION` feature works with libraries as well.
+        """
+        nostaff_client, nostaff_user = self.create_non_staff_authed_user_client()
+        self.assertFalse(get_library_creator_status(nostaff_user))
+        response = nostaff_client.get_json(LIBRARY_REST_URL)
+        self.assertEqual(response.status_code, 200)
+
     @patch("contentstore.views.library.LIBRARIES_ENABLED", False)
     def test_with_libraries_disabled(self):
         """