Merge pull request #3721 from riking/patch-1

FEATURE: Include topic title, category in posts.json

app/controllers/posts_controller.rb

@@ -37,7 +37,8 @@ class PostsController < ApplicationController
                 .where('posts.id <= ?', last_post_id)
                 .where('posts.id > ?', last_post_id - 50)
                 .includes(topic: :category)
-                .includes(:user)
+                .includes(user: :primary_group)
+                .includes(:reply_to_user)
                 .limit(50)
     # Remove posts the user doesn't have permission to see
     # This isn't leaking any information we weren't already through the post ID numbers
@@ -58,6 +59,7 @@ class PostsController < ApplicationController
                                         scope: guardian,
                                         root: 'latest_posts',
                                         add_raw: true,
+                                        add_title: true,
                                         all_post_actions: counts)
                                       )
       end

app/serializers/post_serializer.rb

@@ -5,6 +5,7 @@ class PostSerializer < BasicPostSerializer
     :topic_view,
     :parent_post,
     :add_raw,
+    :add_title,
     :single_post_link_counts,
     :draft_sequence,
     :post_actions,
@@ -28,6 +29,9 @@ class PostSerializer < BasicPostSerializer
              :yours,
              :topic_id,
              :topic_slug,
+             :topic_title,
+             :topic_html_title,
+             :category_id,
              :display_username,
              :primary_group_name,
              :version,
@@ -73,6 +77,30 @@ class PostSerializer < BasicPostSerializer
     object.try(:topic).try(:slug)
   end
 
+  def include_topic_title?
+    @add_title
+  end
+
+  def include_topic_html_title?
+    @add_title
+  end
+
+  def include_category_id?
+    @add_title
+  end
+
+  def topic_title
+    object.topic.title
+  end
+
+  def topic_html_title
+    object.topic.fancy_title
+  end
+
+  def category_id
+    object.topic.category_id
+  end
+
   def moderator?
     !!(object.try(:user).try(:moderator?))
   end