讨论区的调整

app/controllers/messages_controller.rb

@@ -20,7 +20,12 @@ class MessagesController < ApplicationController
     sort = params[:sort].to_i == 1 ? 'asc' : 'desc'
     sort_type = params[:sort_type] || 'time'
 
-    messages = @board.messages.root_nodes.by_keywords(params[:search])
+    if @board.parent_id == 0
+      messages = Message.where(board_id: @course.boards.pluck(:id))
+    else
+      messages = @board.messages
+    end
+    messages = messages.root_nodes.by_keywords(params[:search])
 
     messages = messages.reorder('(sticky = 1) DESC') # 置顶
 

app/views/messages/index.json.jbuilder

@@ -8,7 +8,7 @@ json.data 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, :board_id
-      json.category_name message.board&.name
+      json.category_name message.board&.name if @board.parent_id == 0 && message.board_id != @board.id
 
       json.total_praises_count @praises_count_map.fetch(message.id, 0)