Form_Frontend_Output_Handler::maybe_print_form_error( awsmug\Torro_Forms\DB_Objects\Forms\Form $form )

	protected function maybe_print_form_error( $form ) {
		$key = $this->form_manager->get_prefix() . 'form_errors';

		if ( is_user_logged_in() ) {
			$errors = get_user_meta( get_current_user_id(), $key, true );
			if ( is_array( $errors ) && isset( $errors[ $form->id ] ) ) {
				$this->print_notice( $errors[ $form->id ], 'error' );

				if ( count( $errors ) === 1 ) {
					delete_user_meta( get_current_user_id(), $key );
				} else {
					unset( $errors[ $form->id ] );
					update_user_meta( get_current_user_id(), $key, $errors );
				}
			}
			return;
		}

		if ( isset( $_SESSION ) && isset( $_SESSION[ $key ] ) && isset( $_SESSION[ $key ][ $form->id ] ) ) {
			$this->print_notice( $_SESSION[ $key ][ $form->id ], 'error', true );

			if ( count( $_SESSION[ $key ] ) === 1 ) {
				unset( $_SESSION[ $key ] );
			} else {
				unset( $_SESSION[ $key ][ $form->id ] );
			}
		}
	}