添加identifier

app/models/myshixun.rb

@@ -1,5 +1,5 @@
 class Myshixun < ActiveRecord::Base
-  attr_accessible :description, :name, :parent_id, :user_id, :gpid, :forked_from, :visits, :is_public
+  attr_accessible :description, :name, :parent_id, :user_id, :gpid, :forked_from, :visits, :is_public, :identifier
   has_many :users, :through => :myshixun_members
   has_many :myshixun_members
   has_one :repository

db/migrate/20170425092430_add_identifier_to_myshixun.rb

@@ -0,0 +1,5 @@
+class AddIdentifierToMyshixun < ActiveRecord::Migration
+  def change
+    add_column :myshixuns, :identifier, :string
+  end
+end

db/migrate/20170425093133_sync_identifier_to_myshixun.rb

@@ -0,0 +1,7 @@
+class SyncIdentifierToMyshixun < ActiveRecord::Migration
+  def up
+  end
+
+  def down
+  end
+end