增加每份编程作品的测试结果的记录

app/models/homework_test.rb

@@ -2,4 +2,5 @@ class HomeworkTest < ActiveRecord::Base
   attr_accessible :input, :output, :homework_common_id
 
   belongs_to :homework_common
+  has_one :student_work_test
 end

app/models/student_work.rb

@@ -7,6 +7,7 @@ class StudentWork < ActiveRecord::Base
   has_many :student_works_evaluation_distributions, :dependent => :destroy
   has_many :student_works_scores, :dependent => :destroy
   belongs_to :project
+  has_one :student_work_test
 
   acts_as_attachable
 end

app/models/student_work_test.rb

@@ -0,0 +1,6 @@
+class StudentWorkTest < ActiveRecord::Base
+  attr_accessible :student_work_id, :homework_test_id
+
+  belongs_to :homework_test
+  belongs_to :student_work
+end

db/migrate/20150715070534_create_test_result.rb

@@ -0,0 +1,13 @@
+class CreateTestResult < ActiveRecord::Migration
+  def up
+    create_table :student_work_test do |t|
+      t.integer :student_work_id
+      t.integer :homework_test_id
+      t.integer :result
+      t.timestamps
+    end
+  end
+
+  def down
+  end
+end