WP_REST_Menus_Controller::create_item( WP_REST_Request $request ): WP_REST_Response|WP_Error

Source

public function create_item( $request ) {
	if ( isset( $request['parent'] ) ) {
		if ( ! is_taxonomy_hierarchical( $this->taxonomy ) ) {
			return new WP_Error( 'rest_taxonomy_not_hierarchical', __( 'Cannot set parent term, taxonomy is not hierarchical.' ), array( 'status' => 400 ) );
		}

		$parent = wp_get_nav_menu_object( (int) $request['parent'] );

		if ( ! $parent ) {
			return new WP_Error( 'rest_term_invalid', __( 'Parent term does not exist.' ), array( 'status' => 400 ) );
		}
	}

	$prepared_term = $this->prepare_item_for_database( $request );

	$term = wp_update_nav_menu_object( 0, wp_slash( (array) $prepared_term ) );

	if ( is_wp_error( $term ) ) {
		/*
		 * If we're going to inform the client that the term already exists,
		 * give them the identifier for future use.
		 */

		if ( in_array( 'menu_exists', $term->get_error_codes(), true ) ) {
			$existing_term = get_term_by( 'name', $prepared_term->{'menu-name'}, $this->taxonomy );
			$term->add_data( $existing_term->term_id, 'menu_exists' );
			$term->add_data(
				array(
					'status'  => 400,
					'term_id' => $existing_term->term_id,
				)
			);
		} else {
			$term->add_data( array( 'status' => 400 ) );
		}

		return $term;
	}

	$term = $this->get_term( $term );

	/** This action is documented in wp-includes/rest-api/endpoints/class-wp-rest-terms-controller.php */
	do_action( "rest_insert_{$this->taxonomy}", $term, $request, true );

	$schema = $this->get_item_schema();
	if ( ! empty( $schema['properties']['meta'] ) && isset( $request['meta'] ) ) {
		$meta_update = $this->meta->update_value( $request['meta'], $term->term_id );

		if ( is_wp_error( $meta_update ) ) {
			return $meta_update;
		}
	}

	$locations_update = $this->handle_locations( $term->term_id, $request );

	if ( is_wp_error( $locations_update ) ) {
		return $locations_update;
	}

	$this->handle_auto_add( $term->term_id, $request );

	$fields_update = $this->update_additional_fields_for_object( $term, $request );

	if ( is_wp_error( $fields_update ) ) {
		return $fields_update;
	}

	$request->set_param( 'context', 'view' );

	/** This action is documented in wp-includes/rest-api/endpoints/class-wp-rest-terms-controller.php */
	do_action( "rest_after_insert_{$this->taxonomy}", $term, $request, true );

	$response = $this->prepare_item_for_response( $term, $request );
	$response = rest_ensure_response( $response );

	$response->set_status( 201 );
	$response->header( 'Location', rest_url( $this->namespace . '/' . $this->rest_base . '/' . $term->term_id ) );

	return $response;
}

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