Refactor controller code that creates project/group members

app/controllers/concerns/membership_actions.rb

 module MembershipActions
   extend ActiveSupport::Concern
 
+  def create
+    status = Members::CreateService.new(membershipable, current_user, params).execute
+
+    redirect_url = polymorphic_url([membershipable, :members])
+
+    if status
+      redirect_to redirect_url, notice: 'Users were successfully added.'
+    else
+      redirect_to redirect_url, alert: 'No users specified.'
+    end
+  end
+
   def request_access
     membershipable.request_access(current_user)
 

app/controllers/groups/group_members_controller.rb

@@ -21,21 +21,6 @@ class Groups::GroupMembersController < Groups::ApplicationController
     @group_member = @group.group_members.new
   end
 
-  def create
-    if params[:user_ids].blank?
-      return redirect_to(group_group_members_path(@group), alert: 'No users specified.')
-    end
-
-    @group.add_users(
-      params[:user_ids].split(','),
-      params[:access_level],
-      current_user: current_user,
-      expires_at: params[:expires_at]
-    )
-
-    redirect_to group_group_members_path(@group), notice: 'Users were successfully added.'
-  end
-
   def update
     @group_member = @group.group_members.find(params[:id])
 

app/controllers/projects/project_members_controller.rb

@@ -10,18 +10,6 @@ class Projects::ProjectMembersController < Projects::ApplicationController
     redirect_to namespace_project_settings_members_path(@project.namespace, @project, sort: sort)
   end
 
-  def create
-    status = Members::CreateService.new(@project, current_user, params).execute
-
-    redirect_url = namespace_project_settings_members_path(@project.namespace, @project)
-
-    if status
-      redirect_to redirect_url, notice: 'Users were successfully added.'
-    else
-      redirect_to redirect_url, alert: 'No users or groups specified.'
-    end
-  end
-
   def update
     @project_member = @project.project_members.find(params[:id])
 

app/models/project.rb

@@ -181,7 +181,7 @@ class Project < ActiveRecord::Base
   delegate :name, to: :owner, allow_nil: true, prefix: true
   delegate :count, to: :forks, prefix: true
   delegate :members, to: :team, prefix: true
-  delegate :add_user, to: :team
+  delegate :add_user, :add_users, to: :team
   delegate :add_guest, :add_reporter, :add_developer, :add_master, to: :team
   delegate :empty_repo?, to: :repository
 

app/services/members/create_service.rb

 module Members
   class CreateService < BaseService
+    def initialize(source, current_user, params = {})
+      @source = source
+      @current_user = current_user
+      @params = params
+    end
+
     def execute
       return false if params[:user_ids].blank?
 
-      project.team.add_users(
+      @source.add_users(
         params[:user_ids].split(','),
         params[:access_level],
         expires_at: params[:expires_at],

changelogs/unreleased/dz-refactor-create-members.yml

+---
+title: Refactor code that creates project/group members
+merge_request: 10735
+author:

spec/controllers/projects/project_members_controller_spec.rb

@@ -55,7 +55,7 @@ describe Projects::ProjectMembersController do
                       user_ids: '',
                       access_level: Gitlab::Access::GUEST
 
-        expect(response).to set_flash.to 'No users or groups specified.'
+        expect(response).to set_flash.to 'No users specified.'
         expect(response).to redirect_to(namespace_project_settings_members_path(project.namespace, project))
       end
     end