public function ajax_render_fields() {

		$data = null;

		if ( empty( $_POST['type'] ) ) {
			wp_send_json_error( '' );
		}

		$field = $this->generate_field( null, $_POST['type'] );

		if ( $field ) {
			$data = $field->render_admin_field();
		}

		if ( empty( $data ) ) {
			wp_send_json_error( $data );
		}

		wp_send_json_success( $data );
	}