From 77d713a39086d90dba79bb83d0b758fc114b5c9e Mon Sep 17 00:00:00 2001
From: cxt <pinecxt@163.com>
Date: Wed, 11 May 2016 14:28:13 +0800
Subject: [PATCH] =?UTF-8?q?=E5=90=88=E5=B9=B6=E4=B8=A4=E4=B8=AA=E7=9B=B8?=
 =?UTF-8?q?=E5=90=8C=E7=9A=84=E4=BD=9C=E4=B8=9A?=
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---
 .../20160511055221_merge_two_homeworks.rb     | 20 +++++++++++++++++++
 db/schema.rb                                  | 19 +-----------------
 2 files changed, 21 insertions(+), 18 deletions(-)
 create mode 100644 db/migrate/20160511055221_merge_two_homeworks.rb

diff --git a/db/migrate/20160511055221_merge_two_homeworks.rb b/db/migrate/20160511055221_merge_two_homeworks.rb
new file mode 100644
index 000000000..a30bc983b
--- /dev/null
+++ b/db/migrate/20160511055221_merge_two_homeworks.rb
@@ -0,0 +1,20 @@
+class MergeTwoHomeworks < ActiveRecord::Migration
+  def up
+    student_works = StudentWork.where("homework_common_id = 3387 and user_id in (11256, 11259, 11252, 11499)")
+    unless student_works.nil?
+      student_works.each do |work|
+        work.update_column('homework_common_id', 3463)
+      end
+    end
+    homework = HomeworkCommon.find 3387
+    homework.destroy if homework
+    stu_works = StudentWork.where("homework_common_id = 3387")
+    stu_work_ids = stu_works.empty? ? "(-1)" : "(" + stu_works.map{|work| work.id}.join(',') + ")"
+    stu_work_tests = StudentWorkTest.where("student_work_id in #{stu_work_ids}")
+    stu_work_tests.destroy_all if stu_work_tests
+    stu_works.destroy_all if stu_works
+  end
+
+  def down
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 2ea0f8882..d5334c43c 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -11,7 +11,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20160509025404) do
+ActiveRecord::Schema.define(:version => 20160511055221) do
 
   create_table "activities", :force => true do |t|
     t.integer  "act_id",                                  :null => false
@@ -1107,23 +1107,6 @@ ActiveRecord::Schema.define(:version => 20160509025404) do
     t.integer  "viewed_count",  :default => 0
   end
 
-  create_table "mess", :id => false, :force => true do |t|
-    t.string   "课程名"
-    t.integer  "课程ID",                    :default => 0,  :null => false
-    t.string   "教师姓",                     :default => "", :null => false
-    t.string   "教师名",       :limit => 30, :default => "", :null => false
-    t.string   "主贴名",                     :default => "", :null => false
-    t.integer  "主贴或回帖ID",                 :default => 0,  :null => false
-    t.integer  "回帖对应主贴ID"
-    t.integer  "帖子点赞数"
-    t.integer  "主贴回复数",                   :default => 0,  :null => false
-    t.text     "主贴或回帖内容"
-    t.datetime "发帖时间",                                    :null => false
-    t.integer  "发帖或回帖用户ID",               :default => 0,  :null => false
-    t.string   "发帖或回帖用户姓",                :default => "", :null => false
-    t.string   "发帖或回帖用户名",  :limit => 30, :default => "", :null => false
-  end
-
   create_table "message_alls", :force => true do |t|
     t.integer  "user_id"
     t.integer  "message_id"