Add query for distinct related users

ee/app/models/users_ops_dashboard_project.rb

@@ -7,4 +7,8 @@ class UsersOpsDashboardProject < ApplicationRecord
   validates :user, presence: true
   validates :user_id, uniqueness: { scope: [:project_id] }
   validates :project, presence: true
+
+  def self.distinct_users(users)
+    select('distinct user_id').joins(:user).merge(users)
+  end
 end