Namespace model added. Migration to convert exit project/groups

app/models/group.rb

@@ -10,26 +10,7 @@
 #  updated_at :datetime         not null
 #
 
-class Group < ActiveRecord::Base
-  attr_accessible :code, :name, :owner_id
-
-  has_many :projects
-  belongs_to :owner, class_name: "User"
-
-  validates :name, presence: true, uniqueness: true
-  validates :code, presence: true, uniqueness: true
-  validates :owner, presence: true
-
-  delegate :name, to: :owner, allow_nil: true, prefix: true
-
-  def self.search query
-    where("name LIKE :query OR code LIKE :query", query: "%#{query}%")
-  end
-
-  def to_param
-    code
-  end
-
+class Group < Namespace
   def users
     User.joins(:users_projects).where(users_projects: {project_id: project_ids}).uniq
   end