帖子增加所属目录参数

app/controllers/messages_controller.rb

@@ -31,7 +31,7 @@ class MessagesController < ApplicationController
       else messages.order("created_on #{sort}")
       end
 
-    messages = messages.includes(:author)
+    messages = messages.includes(:author, :board)
     @messages = Kaminari.paginate_array(messages).page(@page).per(@page_size)
 
     ids = @messages.map(&:id)

app/views/messages/index.json.jbuilder

@@ -7,7 +7,8 @@ json.data do
   json.messages do
     json.array! @messages do |message|
       json.extract! message, :id, :parent_id, :subject, :created_on, :total_replies_count,
-                    :praises_count, :visits, :sticky, :is_hidden, :is_public
+                    :praises_count, :visits, :sticky, :is_hidden, :is_public, :board_id
+      json.category_name message.board&.name
 
       json.total_praises_count @praises_count_map.fetch(message.id, 0)