class Route < ActiveRecord::Base include CaseSensitivity belongs_to :source, polymorphic: true # rubocop:disable Cop/PolymorphicAssociations validates :source, presence: true validates :path, length: { within: 1..255 }, presence: true, uniqueness: { case_sensitive: false } validate :ensure_permanent_paths, if: :path_changed? before_validation :delete_conflicting_orphaned_routes after_create :delete_conflicting_redirects after_update :delete_conflicting_redirects, if: :path_changed? after_update :create_redirect_for_old_path after_update :rename_descendants scope :inside_path, -> (path) { where('routes.path LIKE ?', "#{sanitize_sql_like(path)}/%") } def rename_descendants return unless path_changed? || name_changed? descendant_routes = self.class.inside_path(path_was) descendant_routes.each do |route| attributes = {} if path_changed? && route.path.present? attributes[:path] = route.path.sub(path_was, path) end if name_changed? && name_was.present? && route.name.present? attributes[:name] = route.name.sub(name_was, name) end if attributes.present? old_path = route.path # Callbacks must be run manually route.update_columns(attributes.merge(updated_at: Time.now)) # We are not calling route.delete_conflicting_redirects here, in hopes # of avoiding deadlocks. The parent (self, in this method) already # called it, which deletes conflicts for all descendants. route.create_redirect(old_path, permanent: permanent_redirect?) if attributes[:path] end end end def delete_conflicting_redirects conflicting_redirects.delete_all end def conflicting_redirects RedirectRoute.temporary.matching_path_and_descendants(path) end def create_redirect(path, permanent: false) RedirectRoute.create(source: source, path: path, permanent: permanent) end private def create_redirect_for_old_path create_redirect(path_was, permanent: permanent_redirect?) if path_changed? end def permanent_redirect? source_type != "Project" end def ensure_permanent_paths return if path.nil? errors.add(:path, "has been taken before") if conflicting_redirect_exists? end def conflicting_redirect_exists? RedirectRoute.permanent.matching_path_and_descendants(path).exists? end def delete_conflicting_orphaned_routes conflicting = self.class.iwhere(path: path) conflicting_orphaned_routes = conflicting.select do |route| route.source.nil? end conflicting_orphaned_routes.each(&:destroy) end end