From 7dba79a61813ebeafa40d5fc987c85babd7dd735 Mon Sep 17 00:00:00 2001
From: cxt <853663049@qq.com>
Date: Fri, 20 Mar 2020 19:21:56 +0800
Subject: [PATCH] =?UTF-8?q?=E7=AD=BE=E5=88=B0=E7=9A=84=E7=BC=96=E8=BE=91?=
 =?UTF-8?q?=E8=B0=83=E6=95=B4?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 app/controllers/attendances_controller.rb | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/app/controllers/attendances_controller.rb b/app/controllers/attendances_controller.rb
index 256e651e8..412b3bee6 100644
--- a/app/controllers/attendances_controller.rb
+++ b/app/controllers/attendances_controller.rb
@@ -79,8 +79,26 @@ class AttendancesController < ApplicationController
     new_end_time = "#{params[:attendance_date]} #{params[:end_time]}".to_time
     @attendance.update!(update_params)
 
-    # 如果历史签到变为了正在签到，将未创建的学生签到数据补上
-    if a_end_time < Time.current && new_end_time > Time.current
+    old_group_ids = @attendance.course_attendance_groups.pluck(:course_group_id)
+    unless old_group_ids.include?(0)
+      all_groups_ids = old_group_ids + params[:group_ids]
+      # 如果新增的的分班加上之前的分班是课堂的全部分班，则只需创建一条记录
+      if all_groups_ids.uniq.count == @course.course_groups_count
+        @attendance.course_attendance_groups.destroy_all
+        @attendance.course_attendance_groups.create!(course_group_id: 0, course_id: @attendance.course_id)
+        new_group = true
+      else
+        new_group_ids = params[:group_ids] - old_group_ids
+        new_group_ids.each do |group_id|
+          @attendance.course_attendance_groups.create!(course_group_id: group_id, course_id: @attendance.course_id)
+          new_group = true
+        end
+      end
+
+    end
+
+    # 如果新增了分班或者历史签到变为了正在签到，将未创建的学生签到数据补上
+    if new_group || (a_end_time < Time.current && new_end_time > Time.current)
       create_absence_student_data
     end
     render_ok