调整

app/controllers/memos_controller.rb

@@ -147,16 +147,15 @@ class MemosController < ApplicationController
     ActiveRecord::Base.transaction do
       begin
         memo = Memo.find_by!(id: params[:parent_id])
-        reply = Memo.new
+        @reply = Memo.new
-        reply.content = params[:content]
+        @reply.content = params[:content]
-        reply.author = current_user
+        @reply.author = current_user
-        reply.forum_id = memo.forum_id
+        @reply.forum_id = memo.forum_id
-        reply.subject = memo.subject
+        @reply.subject = memo.subject
-        reply.root_id = memo.root_id || memo.id
+        @reply.root_id = memo.root_id || memo.id
-        memo.children << reply
+        memo.children << @reply
-        m = Memo.find_by!(id: reply.root_id)
+        m = Memo.find_by!(id: @reply.root_id)
         m.increment!(:all_replies_count)
-        normal_status("回复成功")
       rescue Exception => e
         tip_exception("回复失败，原因：#{e}")
         raise ActiveRecord::Rollback

app/views/memos/reply.json.jbuilder

@@ -0,0 +1,2 @@
+json.(@reply, :id, :subject, :content, :hidden, :forum_id, :author_id, :all_replies_count, :is_md, :parent_id, :root_id,
+  :reward, :sticky, :updated_at, :created_at, :viewed_count)