Le forum évite de remonter les sujets dont le dernier message est masqué

templates/forum/category/forum.html

@@ -1,6 +1,7 @@
 {% extends "forum/base.html" %}
 {% load i18n %}
 {% load interventions %}
+{% load topics_sort %}
 
 
 {% block title %}
@@ -86,7 +87,7 @@
 
     {% if topics %}
         <div class="topic-list navigable-list" itemscope itemtype="http://schema.org/ItemList">
-            {% for topic in topics %}
+            {% for topic in topics|topics_sort %}
                 {% include "forum/includes/topic_row.part.html" %}
             {% endfor %}
         </div>

zds/forum/models.py

@@ -127,10 +127,10 @@ def get_post_count(self):
 
     def get_last_message(self):
         """
-        :return: the last message on the forum, if there are any.
+        :return: the last visible message on the forum, if there are any.
         """
         try:
-            return Post.objects.filter(topic__forum=self).order_by("-pubdate").all()[0]
+            return Post.objects.filter(topic__forum=self, is_visible=True).order_by("-pubdate").all()[0]
         except IndexError:
             return None
 
@@ -228,6 +228,10 @@ def meta_description(self):
             return first_post.text
         return Topic.__remove_greetings(first_post)[: settings.ZDS_APP["forum"]["description_size"]]
 
+    @property
+    def update(self):
+        return self.get_last_visible_post().update_index_date
+
     @staticmethod
     def __remove_greetings(post):
         greetings = settings.ZDS_APP["forum"]["greetings"]
@@ -253,6 +257,15 @@ def get_post_count(self):
         """
         return Post.objects.filter(topic__pk=self.pk).count()
 
+    def get_last_visible_post(self):
+        """
+        :return: the last visible post in the thread.
+        """
+        try:
+            return self.post_set.filter(is_visible=True).latest("pubdate")
+        except Post.DoesNotExist:
+            return None
+
     def get_last_post(self):
         """
         :return: the last post in the thread.
@@ -266,7 +279,7 @@ def get_last_answer(self):
         return `None`.
         :return: the last answer in the thread, if any.
         """
-        last_post = self.get_last_post()
+        last_post = self.get_last_visible_post()
 
         if last_post == self.first_post():
             return None

zds/forum/tests/tests_views.py

@@ -1042,6 +1042,24 @@ def test_failure_new_post_stopped_by_anti_spam(self):
 
         self.assertEqual(403, response.status_code)
 
+    def test_new_post_stopped_by_anti_spam_after_hidden_post(self):
+        profile = ProfileFactory()
+        _, forum = create_category_and_forum()
+        topic = create_topic_in_forum(forum, profile)
+
+        post_to_hide = PostFactory(topic=topic, author=profile.user, position=topic.last_message.position + 1)
+
+        staff = StaffProfileFactory()
+        self.client.force_login(staff.user)
+        text_hidden_expected = "Bad guy!"
+        data = {"delete_message": "", "text_hidden": text_hidden_expected}
+        response = self.client.post(reverse("post-edit") + "?message={}".format(post_to_hide.pk), data, follow=False)
+
+        self.client.force_login(profile.user)
+        response = self.client.get(reverse("post-new") + "?sujet={}".format(topic.pk))
+
+        self.assertEqual(403, response.status_code)
+
     def test_success_new_post_method_get(self):
         another_profile = ProfileFactory()
         _, forum = create_category_and_forum()
@@ -1345,6 +1363,22 @@ def test_success_edit_post_hide_message_by_staff(self):
         self.assertEqual(staff.user, post.editor)
         self.assertEqual(text_hidden_expected, post.text_hidden)
 
+    def test_last_post_update_after_hiding(self):
+        profile = ProfileFactory()
+        _, forum = create_category_and_forum()
+        topic = create_topic_in_forum(forum, profile)
+        expected_last_post = topic.last_message
+        post_to_hide = PostFactory(topic=topic, author=profile.user, position=2)
+
+        staff = StaffProfileFactory()
+        self.client.force_login(staff.user)
+        text_hidden_expected = "Bad guy!"
+        data = {"delete_message": "", "text_hidden": text_hidden_expected}
+        response = self.client.post(reverse("post-edit") + "?message={}".format(post_to_hide.pk), data, follow=False)
+
+        last_post = Post.objects.get(pk=topic.get_last_visible_post().pk)
+        self.assertEqual(last_post.pk, expected_last_post.pk)
+
     def test_hide_helpful_message(self):
         profile = ProfileFactory()
         _, forum = create_category_and_forum()

zds/utils/templatetags/topics_sort.py

@@ -0,0 +1,13 @@
+from django import template
+from django.core.cache import cache
+
+
+register = template.Library()
+
+
+@register.filter("topics_sort")
+def topics_sort(topics):
+    """
+    :return: the topics sorted by last update (last updated first)
+    """
+    return sorted(topics, key=lambda topic: topic.update, reverse=True)

zds/utils/tests/test_misc.py

@@ -5,6 +5,8 @@
 from zds.utils.misc import contains_utf8mb4
 from zds.utils.models import Alert
 from zds.utils.context_processor import get_header_notifications
+from zds.utils.templatetags.topics_sort import topics_sort
+from zds.forum.factories import TopicFactory, create_category_and_forum, create_topic_in_forum
 
 
 class Misc(TestCase):
@@ -31,3 +33,11 @@ def test_intervention_filter_for_tribunes(self):
         filter_result = get_header_notifications(staff.user)["alerts"]
         self.assertEqual(1, filter_result["total"])
         self.assertEqual(alert.text, filter_result["list"][0]["text"])
+
+    def test_topics_sort(self):
+        author = ProfileFactory()
+        _, forum = create_category_and_forum()
+        topic1 = create_topic_in_forum(forum, author)
+        topic2 = create_topic_in_forum(forum, author)
+
+        self.assertEqual(topics_sort([topic1, topic2]), [topic2, topic1])