1 files changed, 37 insertions, 0 deletions
diff --git a/lib/gitlab/background_migration/user_mentions/models/user.rb b/lib/gitlab/background_migration/user_mentions/models/user.rb
new file mode 100644
index 00000000000..a30220b6934
--- /dev/null
+++ b/lib/gitlab/background_migration/user_mentions/models/user.rb
@@ -0,0 +1,37 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module BackgroundMigration
+    module UserMentions
+      module Models
+        # isolated Namespace model
+        class User < ActiveRecord::Base
+          include Concerns::IsolatedFeatureGate
+
+          self.table_name = 'users'
+          self.inheritance_column = :_type_disabled
+
+          has_many :project_authorizations, dependent: :delete_all # rubocop:disable Cop/ActiveRecordDependent
+
+          def authorizations_for_projects(min_access_level: nil, related_project_column: 'projects.id')
+            authorizations = project_authorizations
+                               .select(1)
+                               .where("project_authorizations.project_id = #{related_project_column}")
+
+            return authorizations unless min_access_level.present?
+
+            authorizations.where('project_authorizations.access_level >= ?', min_access_level)
+          end
+
+          def can_read_all_resources?
+            can?(:read_all_resources)
+          end
+
+          def can?(action, subject = :global)
+            Ability.allowed?(self, action, subject)
+          end
+        end
+      end
+    end
+  end
+end