Feature implemented

app/models/users_project.rb

@@ -21,6 +21,22 @@ class UsersProject < ActiveRecord::Base
   delegate :name, :email, to: :user, prefix: true
 
   class << self
+    def import_team(source_project, target_project)
+      UsersProject.transaction do
+        team = source_project.users_projects.all
+
+        team.each do |tm|
+          # Skip if user already present in team
+          next if target_project.users.include?(tm.user)
+
+          new_tm = tm.dup
+          new_tm.id = nil
+          new_tm.project_id = target_project.id
+          new_tm.save
+        end
+      end
+    end
+
     def bulk_delete(project, user_ids)
       UsersProject.transaction do
         UsersProject.where(:user_id => user_ids, :project_id => project.id).each do |users_project|