From b0b056ebc35f2fed4015945baadac228f79fa941 Mon Sep 17 00:00:00 2001
From: cxt <853663049@qq.com>
Date: Thu, 25 Jul 2019 14:23:02 +0800
Subject: [PATCH] stage update

---
 app/controllers/stages_controller.rb | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/app/controllers/stages_controller.rb b/app/controllers/stages_controller.rb
index d456c17e7..3967554aa 100644
--- a/app/controllers/stages_controller.rb
+++ b/app/controllers/stages_controller.rb
@@ -40,12 +40,9 @@ class StagesController < ApplicationController
     ActiveRecord::Base.transaction do
       begin
         @stage.update_attributes!(stage_params)
+        @stage.stage_shixuns.destroy_all
         unless params[:shixun_id].blank?
-          new_shixun_ids = params[:shixun_id] - @stage.stage_shixuns.pluck(:shixun_id)
-          delete_shixun_ids = @stage.stage_shixuns.pluck(:shixun_id) - params[:shixun_id]
-          @stage.stage_shixuns.where(shixun_id: delete_shixun_ids).destroy_all
-
-          new_shixun_ids.each do |shixun_id|
+          params[:shixun_id].each do |shixun_id|
             shixun = Shixun.where(id: shixun_id).first
             @stage.stage_shixuns.create!(subject_id: @subject.id, shixun_id: shixun.id, position: @stage.stage_shixuns.count + 1) if shixun.present?
           end