Update `children` route to handle projects and groups

app/controllers/groups_controller.rb

@@ -61,7 +61,11 @@ class GroupsController < Groups::ApplicationController
   end
 
   def children
-    parent = Group.find_by(parent_id: params[:parent_id]) || @group
+    parent = if params[:parent_id].present?
+               Group.find(params[:parent_id])
+             else
+               @group
+             end
     if parent.nil? || !can?(current_user, :read_group, parent)
       render_404
     end
@@ -70,7 +74,7 @@ class GroupsController < Groups::ApplicationController
 
     respond_to do |format|
       format.json do
-        render json: GroupChildrenSerializer
+        render json: GroupChildSerializer
                  .new(current_user: current_user)
                  .with_pagination(request, response)
                  .represent(@children)

config/routes/group.rb

@@ -41,6 +41,9 @@ scope(path: 'groups/*id',
   get :merge_requests, as: :merge_requests_group
   get :projects, as: :projects_group
   get :activity, as: :activity_group
+  scope(path: '-') do
+    get :children, as: :group_children
+  end
   get '/', action: :show, as: :group_canonical
 end
 

lib/gitlab/path_regex.rb

@@ -129,7 +129,6 @@ module Gitlab
       notification_setting
       pipeline_quota
       projects
-      subgroups
     ].freeze
 
     ILLEGAL_PROJECT_PATH_WORDS = PROJECT_WILDCARD_ROUTES

spec/controllers/groups_controller_spec.rb

@@ -150,39 +150,79 @@ describe GroupsController do
     end
   end
 
-  describe 'GET #subgroups', :nested_groups do
+  describe 'GET #children' do
+    context 'for projects' do
+      let!(:public_project) { create(:project, :public, namespace: group) }
+      let!(:private_project) { create(:project, :private, namespace: group) }
+
+      context 'as a user' do
+        before do
+          sign_in(user)
+        end
+
+        it 'shows all children' do
+          get :children, id: group.to_param, format: :json
+
+          expect(assigns(:children)).to contain_exactly(public_project, private_project)
+        end
+
+        context 'being member of private subgroup' do
+          it 'shows public and private children the user is member of' do
+            group_member.destroy!
+            private_project.add_guest(user)
+
+            get :children, id: group.to_param, format: :json
+
+            expect(assigns(:children)).to contain_exactly(public_project, private_project)
+          end
+        end
+      end
+
+      context 'as a guest' do
+        it 'shows the public children' do
+          get :children, id: group.to_param, format: :json
+
+          expect(assigns(:children)).to contain_exactly(public_project)
+        end
+      end
+    end
+
+    context 'for subgroups', :nested_groups do
       let!(:public_subgroup) { create(:group, :public, parent: group) }
       let!(:private_subgroup) { create(:group, :private, parent: group) }
+      let!(:public_project) { create(:project, :public, namespace: group) }
+      let!(:private_project) { create(:project, :private, namespace: group) }
 
       context 'as a user' do
         before do
           sign_in(user)
-        pending('spec the children path instead')
         end
 
-      it 'shows all subgroups' do
-        get :subgroups, id: group.to_param
+        it 'shows all children' do
+          get :children, id: group.to_param, format: :json
 
-        expect(assigns(:nested_groups)).to contain_exactly(public_subgroup, private_subgroup)
+          expect(assigns(:children)).to contain_exactly(public_subgroup, private_subgroup, public_project, private_project)
         end
 
         context 'being member of private subgroup' do
-        it 'shows public and private subgroups the user is member of' do
+          it 'shows public and private children the user is member of' do
             group_member.destroy!
             private_subgroup.add_guest(user)
+            private_project.add_guest(user)
 
-          get :subgroups, id: group.to_param
+            get :children, id: group.to_param, format: :json
 
-          expect(assigns(:nested_groups)).to contain_exactly(public_subgroup, private_subgroup)
+            expect(assigns(:children)).to contain_exactly(public_subgroup, private_subgroup, public_project, private_project)
           end
         end
       end
 
       context 'as a guest' do
-      it 'shows the public subgroups' do
-        get :subgroups, id: group.to_param
+        it 'shows the public children' do
+          get :children, id: group.to_param, format: :json
 
-        expect(assigns(:nested_groups)).to contain_exactly(public_subgroup)
+          expect(assigns(:children)).to contain_exactly(public_subgroup, public_project)
+        end
       end
     end
   end

spec/lib/gitlab/path_regex_spec.rb

@@ -213,7 +213,7 @@ describe Gitlab::PathRegex do
     it 'accepts group routes' do
       expect(subject).to match('activity/')
       expect(subject).to match('group_members/')
-      expect(subject).to match('subgroups/')
+      expect(subject).to match('labels/')
     end
 
     it 'is not case sensitive' do
@@ -246,7 +246,7 @@ describe Gitlab::PathRegex do
         it 'accepts group routes' do
           expect(subject).to match('activity/')
           expect(subject).to match('group_members/')
-          expect(subject).to match('subgroups/')
+          expect(subject).to match('labels/')
         end
       end
 
@@ -268,7 +268,7 @@ describe Gitlab::PathRegex do
         it 'accepts group routes' do
           expect(subject).to match('activity/more/')
           expect(subject).to match('group_members/more/')
-          expect(subject).to match('subgroups/more/')
+          expect(subject).to match('labels/more/')
         end
       end
     end
@@ -292,7 +292,7 @@ describe Gitlab::PathRegex do
         it 'rejects group routes' do
           expect(subject).not_to match('root/activity/')
           expect(subject).not_to match('root/group_members/')
-          expect(subject).not_to match('root/subgroups/')
+          expect(subject).not_to match('root/labels/')
         end
       end
 
@@ -314,7 +314,7 @@ describe Gitlab::PathRegex do
         it 'rejects group routes' do
           expect(subject).not_to match('root/activity/more/')
           expect(subject).not_to match('root/group_members/more/')
-          expect(subject).not_to match('root/subgroups/more/')
+          expect(subject).not_to match('root/labels/more/')
         end
       end
     end
@@ -349,7 +349,7 @@ describe Gitlab::PathRegex do
     it 'accepts group routes' do
       expect(subject).to match('activity/')
       expect(subject).to match('group_members/')
-      expect(subject).to match('subgroups/')
+      expect(subject).to match('labels/')
     end
 
     it 'is not case sensitive' do
@@ -382,7 +382,7 @@ describe Gitlab::PathRegex do
     it 'accepts group routes' do
       expect(subject).to match('root/activity/')
       expect(subject).to match('root/group_members/')
-      expect(subject).to match('root/subgroups/')
+      expect(subject).to match('root/labels/')
     end
 
     it 'is not case sensitive' do