Remove User#namespaces method from code

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

app/helpers/namespaces_helper.rb

 module NamespacesHelper
   def namespaces_options(selected = :current_user, scope = :default)
-    groups = current_user.owned_groups.select {|n| n.type == 'Group'}
-    users = current_user.namespaces.reject {|n| n.type == 'Group'}
+    groups = current_user.owned_groups
+    users = [current_user.namespace]
     group_opts = ["Groups", groups.sort_by(&:human_name).map {|g| [g.human_name, g.id]} ]
     users_opts = [ "Users", users.sort_by(&:human_name).map {|u| [u.human_name, u.id]} ]

app/models/user.rb

@@ -82,8 +82,6 @@ class User < ActiveRecord::Base
   has_many :personal_projects,        through: :namespace, source: :projects
   has_many :projects,                 through: :users_projects
   has_many :created_projects,         foreign_key: :creator_id, class_name: 'Project'
-  has_many :owned_projects,           through: :owned_groups, source: :projects
-
   has_many :snippets,                 dependent: :destroy, foreign_key: :author_id, class_name: "Snippet"
   has_many :users_projects,           dependent: :destroy
@@ -258,6 +256,12 @@ class User < ActiveRecord::Base
                              end
   end
+  def owned_projects
+    @owned_projects ||= begin
+                          Project.where(namespace_id: owned_groups.pluck(:id).push(namespace.id)).joins(:namespace)
+                        end
+  end
+
   # Team membership in authorized projects
   def tm_in_authorized_projects
     UsersProject.where(project_id: authorized_projects.map(&:id), user_id: self.id)
@@ -330,7 +334,7 @@ class User < ActiveRecord::Base
   end
   def several_namespaces?
-    namespaces.many? || owned_groups.any?
+    owned_groups.any?
   end
   def namespace_id

spec/models/user_spec.rb

@@ -135,7 +135,6 @@ describe User do
     end
     it { @user.several_namespaces?.should be_true }
-    it { @user.namespaces.should include(@user.namespace) }
     it { @user.authorized_groups.should == [@group] }
     it { @user.owned_groups.should == [@group] }
   end
@@ -162,7 +161,6 @@ describe User do
     end
     it { @user.several_namespaces?.should be_false }
-    it { @user.namespaces.should == [@user.namespace] }
   end
   describe 'blocking user' do