Role-based issue custom field visibility (#5037).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@12012 e93f8b46-1217-0410-a6f0-8f06a7374b81

db/migrate/20130713104233_create_custom_fields_roles.rb

@@ -0,0 +1,14 @@
+class CreateCustomFieldsRoles < ActiveRecord::Migration
+  def self.up
+    create_table :custom_fields_roles, :id => false do |t|
+      t.column :custom_field_id, :integer, :null => false
+      t.column :role_id, :integer, :null => false
+    end
+    add_index :custom_fields_roles, [:custom_field_id, :role_id], :unique => true, :name => :custom_fields_roles_ids
+    CustomField.update_all({:visible => true}, {:type => 'IssueCustomField'})
+  end
+
+  def self.down
+    drop_table :custom_fields_roles
+  end
+end