diff --git a/app/models/course.rb b/app/models/course.rb
new file mode 100644
index 000000000..9f25f5c05
--- /dev/null
+++ b/app/models/course.rb
@@ -0,0 +1,15 @@
+class Course < ActiveRecord::Base
+  include Redmine::SafeAttributes
+  
+  attr_accessible :code, :extra, :name, :state, :tea_id, :time
+  belongs_to :project, :class_name => 'Project', :foreign_key => :tea_id
+  has_many :bid
+  validates_presence_of :code, :time
+  safe_attributes 'extra',
+  'time',
+  'name',
+  'extra',
+  'code'
+  
+
+end
diff --git a/db/migrate/20130904075504_create_courses.rb b/db/migrate/20130904075504_create_courses.rb
new file mode 100644
index 000000000..682892696
--- /dev/null
+++ b/db/migrate/20130904075504_create_courses.rb
@@ -0,0 +1,14 @@
+class CreateCourses < ActiveRecord::Migration
+  def change
+    create_table :courses do |t|
+      t.integer :tea_id
+      t.string :name
+      t.integer :state
+      t.string :code
+      t.integer :time
+      t.string :extra
+
+      t.timestamps
+    end
+  end
+end