✨(forum) list forums of the course to be locked

When the intructor wants to lock the forums of the course, we give
the list of forums of the course as a reminder.

CHANGELOG.md

@@ -8,6 +8,11 @@ Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
 
+### Added
+
+- Show the listing of forums part of the course that would be locked if CTA is
+  confirmed
+
 ## [1.2.0] - 2022-05-16
 
 ### Added

src/ashley/machina_extensions/forum/views.py

@@ -256,6 +256,20 @@ class ForumLockCourseView(PermissionRequiredMixin, UpdateView):
     fields = ["lti_contexts"]
     template_name = "forum/forum_lock.html"
 
+    def get_list_forums(self):
+        """Returns the list of forums of this course"""
+        return Forum.objects.filter(
+            lti_contexts=self.get_object().lti_contexts.get(
+                id=self.request.forum_permission_handler.current_lti_context_id
+            )
+        )
+
+    def get_context_data(self, **kwargs):
+        """Sends list_forum to the view"""
+        context = super().get_context_data()
+        context["list_forum"] = self.get_list_forums()
+        return context
+
     def get_success_url(self):
         """Returns the success URL to redirect the user to."""
         return reverse("forum:index")
@@ -277,13 +291,14 @@ def post(self, request, *args, **kwargs):
         We lock all forums of this course. Default group shouldn't have writing
         permissions anymore. The LTIContex will then be marked as blocked.
         """
+
         lti_context = self.get_object().lti_contexts.get(
             id=self.request.forum_permission_handler.current_lti_context_id
         )
         default_group = lti_context.get_base_group()
 
         # remove all permissions for each forum of this LTIContext
-        for forum in Forum.objects.filter(lti_contexts=lti_context):
+        for forum in self.get_list_forums():
             # pylint: disable=not-an-iterable
             for perm in DEFAULT_FORUM_BASE_WRITE_PERMISSIONS:
                 remove_perm(perm, default_group, forum)

src/ashley/templates/forum/forum_lock.html

@@ -13,9 +13,7 @@ <h3 class="m-0 h5 card-title">{% trans "Lock the forum" %}</h3>
       <div class="card-body">
           <div class="mb-3 warning-message">
               <p>{% trans "Are you sure you want to lock the entire course? All the forums in this course will be locked." %}</p>
-              <p class="ml-3 pb-3">
-                  <strong>{{ object.name }}</strong>
-              <p>
+              {% for forum in list_forum %}<p class="ml-3 pb-3"><strong>{{ forum.name }}</strong><p>{% endfor %}
           </div>
         <form method="post" action="." class="form" enctype="multipart/form-data" novalidate>{% csrf_token %}
           <div class="row">

tests/ashley/test_course_locked.py

@@ -769,3 +769,37 @@ def test_is_marked_locked_set_in_the_back(self):
                 ).values_list("permission__codename", flat=True)
             ),
         )
+
+    def test_course_create_multiple_forums_listing_on(self):
+        """
+        Instructor wants to lock the course that has multiple forums.
+        The list of forums should be displayed before the confirmation's
+        button.
+        """
+        forum1 = self._connects("instructor")
+        forum2 = ForumFactory(name="Forum2")
+        forum3 = ForumFactory(name="Forum3")
+        # connects user and add forums to the lti_context
+        forum2 = self._connects("instructor", forum_uuid=forum2.lti_id)
+        forum3 = self._connects("instructor", forum_uuid=forum3.lti_id)
+
+        # go on the page to lock the course from the forum1
+        response = self.client.get(f"/forum/admin/lock-course/{forum1.id}/")
+        self.assertEqual(200, response.status_code)
+        # this listing is common for all the forums of the course
+        forums_list = (
+            f'<p class="ml-3 pb-3"><strong>{forum1.name}</strong><p>'
+            '<p class="ml-3 pb-3"><strong>Forum2</strong><p>'
+            '<p class="ml-3 pb-3"><strong>Forum3</strong><p>'
+        )
+        self.assertContains(response, forums_list)
+
+        # go on the page to lock the course from the forum2
+        response = self.client.get(f"/forum/admin/lock-course/{forum2.id}/")
+        self.assertEqual(200, response.status_code)
+        self.assertContains(response, forums_list)
+
+        # go on the page to lock the course from the forum3
+        response = self.client.get(f"/forum/admin/lock-course/{forum3.id}/")
+        self.assertEqual(200, response.status_code)
+        self.assertContains(response, forums_list)