项目名称唯一

app/models/project.rb

@@ -113,6 +113,7 @@ class Project < ActiveRecord::Base
 
   validates_presence_of :name, :identifier
   validates_uniqueness_of :identifier
+  validates_uniqueness_of :name
   validates_associated :repository, :wiki
   # validates_length_of :description, :maximum => 255
   validates_length_of :name, :maximum => 255