protected function setup_properties() {
		$this->conditional = new Papi_Core_Conditional();

		if ( $this->default_options['sort_order'] === -1 ) {
			$this->default_options['sort_order'] = papi_filter_settings_sort_order();
		}

		if ( papi_is_empty( $this->default_options['post_type'] ) ) {
			$this->default_options['post_type'] = papi_get_post_type();
		}
	}