woocommerce / woocommerce-rest-api

src/Controllers/Version4/ProductAttributes.php

<?php
/**
 * REST API Product Attributes controller
 *
 * Handles requests to the products/attributes endpoint.
 *
 * @package Automattic/WooCommerce/RestApi
 */

namespace Automattic\WooCommerce\RestApi\Controllers\Version4;

defined( 'ABSPATH' ) || exit;

/**
 * REST API Product Attributes controller class.
 */
class ProductAttributes extends AbstractController {

	/**
	 * Route base.
	 *
	 * @var string
	 */
	protected $rest_base = 'products/attributes';

	/**
	 * Permission to check.
	 *
	 * @var string
	 */
	protected $resource_type = 'attributes';

	/**
	 * Attribute name.
	 *
	 * @var string
	 */
	protected $attribute = '';

	/**
	 * Register the routes for product attributes.
	 */
	public function register_routes() {
		register_rest_route(
			$this->namespace,
			'/' . $this->rest_base,
			array(
				array(
					'methods'             => \WP_REST_Server::READABLE,
					'callback'            => array( $this, 'get_items' ),
					'permission_callback' => array( $this, 'get_items_permissions_check' ),
					'args'                => $this->get_collection_params(),
				),
				array(
					'methods'             => \WP_REST_Server::CREATABLE,
					'callback'            => array( $this, 'create_item' ),
					'permission_callback' => array( $this, 'create_item_permissions_check' ),
					'args'                => array_merge(
						$this->get_endpoint_args_for_item_schema( \WP_REST_Server::CREATABLE ),
						array(
							'name' => array(
								'description' => __( 'Name for the resource.', 'woocommerce' ),
								'type'        => 'string',
								'required'    => true,
							),
						)
					),
				),
				'schema' => array( $this, 'get_public_item_schema' ),
			),
			true
		);

		register_rest_route(
			$this->namespace,
			'/' . $this->rest_base . '/(?P<id>[\d]+)',
			array(
				'args' => array(
					'id' => array(
						'description' => __( 'Unique identifier for the resource.', 'woocommerce' ),
						'type'        => 'integer',
					),
				),
				array(
					'methods'             => \WP_REST_Server::READABLE,
					'callback'            => array( $this, 'get_item' ),
					'permission_callback' => array( $this, 'get_item_permissions_check' ),
					'args'                => array(
						'context'         => $this->get_context_param( array( 'default' => 'view' ) ),
					),
				),
				array(
					'methods'             => \WP_REST_Server::EDITABLE,
					'callback'            => array( $this, 'update_item' ),
					'permission_callback' => array( $this, 'update_item_permissions_check' ),
					'args'                => $this->get_endpoint_args_for_item_schema( \WP_REST_Server::EDITABLE ),
				),
				array(
					'methods'             => \WP_REST_Server::DELETABLE,
					'callback'            => array( $this, 'delete_item' ),
					'permission_callback' => array( $this, 'delete_item_permissions_check' ),
					'args'                => array(
						'force' => array(
							'default'     => true,
							'type'        => 'boolean',
							'description' => __( 'Required to be true, as resource does not support trashing.', 'woocommerce' ),
						),
					),
				),
				'schema' => array( $this, 'get_public_item_schema' ),
			),
			true
		);

		$this->register_batch_route();
	}

	/**
	 * Get all attributes.
	 *
	 * @param \WP_REST_Request $request Request params.
	 * @return array
	 */
	public function get_items( $request ) {
		$attributes = wc_get_attribute_taxonomies();
		$data       = array();
		foreach ( $attributes as $attribute_obj ) {
			$attribute = $this->prepare_item_for_response( $attribute_obj, $request );
			$attribute = $this->prepare_response_for_collection( $attribute );
			$data[]    = $attribute;
		}

		return rest_ensure_response( $data );
	}

	/**
	 * Create a single attribute.
	 *
	 * @param \WP_REST_Request $request Full details about the request.
	 * @return \WP_REST_Request|\WP_Error
	 */
	public function create_item( $request ) {
		global $wpdb;

		$id = wc_create_attribute(
			array(
				'name'         => $request['name'],
				'slug'         => wc_sanitize_taxonomy_name( stripslashes( $request['slug'] ) ),
				'type'         => ! empty( $request['type'] ) ? $request['type'] : 'select',
				'order_by'     => ! empty( $request['order_by'] ) ? $request['order_by'] : 'menu_order',
				'has_archives' => true === $request['has_archives'],
			)
		);

		// Checks for errors.
		if ( is_wp_error( $id ) ) {
			return new \WP_Error( 'woocommerce_rest_cannot_create', $id->get_error_message(), array( 'status' => 400 ) );
		}

		$attribute = $this->get_attribute( $id );

It seems like $id can also be of type WP_Error; however, parameter $id of Automattic\WooCommerce\RestApi\Controllers\Version4\ProductAttributes::get_attribute() does only seem to accept integer, maybe add an additional type check?

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

		$this->update_additional_fields_for_object( $attribute, $request );

$attribute of type Automattic\WooCommerce\RestApi\Controllers\Version4\stdClass|WP_Error is incompatible with the type array expected by parameter $object of WP_REST_Controller::update_additional_fields_for_object().

		/**
		 * Fires after a single product attribute is created or updated via the REST API.
		 *
		 * @param stdObject       $attribute Inserted attribute object.
		 * @param \WP_REST_Request $request   Request object.
		 * @param boolean         $creating  True when creating attribute, false when updating.
		 */
		do_action( 'woocommerce_rest_insert_product_attribute', $attribute, $request, true );

		$request->set_param( 'context', 'edit' );
		$response = $this->prepare_item_for_response( $attribute, $request );
		$response = rest_ensure_response( $response );
		$response->set_status( 201 );
		$response->header( 'Location', rest_url( '/' . $this->namespace . '/' . $this->rest_base . '/' . $attribute->attribute_id ) );

		return $response;
	}

	/**
	 * Get a single attribute.
	 *
	 * @param \WP_REST_Request $request Full details about the request.
	 * @return \WP_REST_Request|\WP_Error
	 */
	public function get_item( $request ) {
		$attribute = $this->get_attribute( (int) $request['id'] );

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

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

		return rest_ensure_response( $response );
	}

	/**
	 * Update a single term from a taxonomy.
	 *
	 * @param \WP_REST_Request $request Full details about the request.
	 * @return \WP_REST_Request|\WP_Error
	 */
	public function update_item( $request ) {
		global $wpdb;

		$id     = (int) $request['id'];
		$edited = wc_update_attribute(
			$id,
			array(
				'name'         => $request['name'],
				'slug'         => wc_sanitize_taxonomy_name( stripslashes( $request['slug'] ) ),
				'type'         => $request['type'],
				'order_by'     => $request['order_by'],
				'has_archives' => $request['has_archives'],
			)
		);

		// Checks for errors.
		if ( is_wp_error( $edited ) ) {
			return new \WP_Error( 'woocommerce_rest_cannot_edit', $edited->get_error_message(), array( 'status' => 400 ) );
		}

		$attribute = $this->get_attribute( $id );

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

		$this->update_additional_fields_for_object( $attribute, $request );

$attribute of type Automattic\WooCommerce\RestApi\Controllers\Version4\stdClass|WP_Error is incompatible with the type array expected by parameter $object of WP_REST_Controller::update_additional_fields_for_object().

		/**
		 * Fires after a single product attribute is created or updated via the REST API.
		 *
		 * @param stdObject       $attribute Inserted attribute object.
		 * @param \WP_REST_Request $request   Request object.
		 * @param boolean         $creating  True when creating attribute, false when updating.
		 */
		do_action( 'woocommerce_rest_insert_product_attribute', $attribute, $request, false );

		$request->set_param( 'context', 'edit' );
		$response = $this->prepare_item_for_response( $attribute, $request );

		return rest_ensure_response( $response );
	}

	/**
	 * Delete a single attribute.
	 *
	 * @param \WP_REST_Request $request Full details about the request.
	 * @return \WP_REST_Response|\WP_Error
	 */
	public function delete_item( $request ) {
		$force = isset( $request['force'] ) ? (bool) $request['force'] : false;

		// We don't support trashing for this type, error out.
		if ( ! $force ) {
			return new \WP_Error( 'woocommerce_rest_trash_not_supported', __( 'Resource does not support trashing.', 'woocommerce' ), array( 'status' => 501 ) );
		}

		$attribute = $this->get_attribute( (int) $request['id'] );

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

		$request->set_param( 'context', 'edit' );
		$previous = $this->prepare_item_for_response( $attribute, $request );
		$deleted  = wc_delete_attribute( $attribute->attribute_id );

		if ( false === $deleted ) {
			return new \WP_Error( 'woocommerce_rest_cannot_delete', __( 'The resource cannot be deleted.', 'woocommerce' ), array( 'status' => 500 ) );
		}

		$response = new \WP_REST_Response();
		$response->set_data(
			array(
				'deleted'  => true,
				'previous' => $previous->get_data(),
			)
		);

		/**
		 * Fires after a single attribute is deleted via the REST API.
		 *
		 * @param stdObject        $attribute     The deleted attribute.
		 * @param \WP_REST_Response $response The response data.
		 * @param \WP_REST_Request  $request  The request sent to the API.
		 */
		do_action( 'woocommerce_rest_delete_product_attribute', $attribute, $response, $request );

		return $response;
	}

	/**
	 * Get data for this object in the format of this endpoint's schema.
	 *
	 * @param object           $object Object to prepare.
	 * @param \WP_REST_Request $request Request object.
	 * @return array Array of data in the correct format.
	 */
	protected function get_data_for_response( $object, $request ) {
		return array(
			'id'           => (int) $object->attribute_id,
			'name'         => $object->attribute_label,
			'slug'         => wc_attribute_taxonomy_name( $object->attribute_name ),
			'type'         => $object->attribute_type,
			'order_by'     => $object->attribute_orderby,
			'has_archives' => (bool) $object->attribute_public,
		);
	}

	/**
	 * Prepare links for the request.
	 *
	 * @param mixed            $item Object to prepare.
	 * @param \WP_REST_Request $request Request object.
	 * @return array
	 */
	protected function prepare_links( $item, $request ) {
		$base  = '/' . $this->namespace . '/' . $this->rest_base;
		$links = array(
			'self' => array(
				'href' => rest_url( trailingslashit( $base ) . $item->attribute_id ),
			),
			'collection' => array(
				'href' => rest_url( $base ),
			),
		);

		return $links;
	}

	/**
	 * Get the Attribute's schema, conforming to JSON Schema.
	 *
	 * @return array
	 */
	public function get_item_schema() {
		$schema = array(
			'$schema'              => 'http://json-schema.org/draft-04/schema#',
			'title'                => 'product_attribute',
			'type'                 => 'object',
			'properties'           => array(
				'id' => array(
					'description' => __( 'Unique identifier for the resource.', 'woocommerce' ),
					'type'        => 'integer',
					'context'     => array( 'view', 'edit' ),
					'readonly'    => true,
				),
				'name' => array(
					'description' => __( 'Attribute name.', 'woocommerce' ),
					'type'        => 'string',
					'context'     => array( 'view', 'edit' ),
					'arg_options' => array(
						'sanitize_callback' => 'sanitize_text_field',
					),
				),
				'slug' => array(
					'description' => __( 'An alphanumeric identifier for the resource unique to its type.', 'woocommerce' ),
					'type'        => 'string',
					'context'     => array( 'view', 'edit' ),
					'arg_options' => array(
						'sanitize_callback' => 'sanitize_title',
					),
				),
				'type' => array(
					'description' => __( 'Type of attribute.', 'woocommerce' ),
					'type'        => 'string',
					'default'     => 'select',
					'enum'        => array_keys( wc_get_attribute_types() ),
					'context'     => array( 'view', 'edit' ),
				),
				'order_by' => array(
					'description' => __( 'Default sort order.', 'woocommerce' ),
					'type'        => 'string',
					'default'     => 'menu_order',
					'enum'        => array( 'menu_order', 'name', 'name_num', 'id' ),
					'context'     => array( 'view', 'edit' ),
				),
				'has_archives' => array(
					'description' => __( 'Enable/Disable attribute archives.', 'woocommerce' ),
					'type'        => 'boolean',
					'default'     => false,
					'context'     => array( 'view', 'edit' ),
				),
			),
		);

		return $this->add_additional_fields_schema( $schema );
	}

	/**
	 * Get the query params for collections
	 *
	 * @return array
	 */
	public function get_collection_params() {
		$params = array();
		$params['context'] = $this->get_context_param( array( 'default' => 'view' ) );

		return $params;
	}

	/**
	 * Get attribute name.
	 *
	 * @param \WP_REST_Request $request Full details about the request.
	 * @return string
	 */
	protected function get_taxonomy( $request ) {
		if ( '' !== $this->attribute ) {
			return $this->attribute;
		}

		if ( $request['id'] ) {
			$name = wc_attribute_taxonomy_name_by_id( (int) $request['id'] );

			$this->attribute = $name;
		}

		return $this->attribute;
	}

	/**
	 * Get attribute data.
	 *
	 * @param int $id Attribute ID.
	 * @return stdClass|\WP_Error

The type Automattic\WooCommerce\RestApi\Controllers\Version4\stdClass was not found. Did you mean stdClass? If so, make sure to prefix the type with \.

	 */
	protected function get_attribute( $id ) {
		global $wpdb;

		$attribute = $wpdb->get_row(
			$wpdb->prepare(
				"
				SELECT *
				FROM {$wpdb->prefix}woocommerce_attribute_taxonomies
				WHERE attribute_id = %d
				",
				$id
			)
		);

		if ( is_wp_error( $attribute ) || is_null( $attribute ) ) {
			return new \WP_Error( 'woocommerce_rest_attribute_invalid', __( 'Resource does not exist.', 'woocommerce' ), array( 'status' => 404 ) );
		}

		return $attribute;
	}

	/**
	 * Validate attribute slug.
	 *
	 * @deprecated 3.2.0
	 * @param string $slug Slug being set.
	 * @param bool   $new_data Is the data new or old.
	 * @return bool|\WP_Error
	 */
	protected function validate_attribute_slug( $slug, $new_data = true ) {
		if ( strlen( $slug ) >= 28 ) {
			/* Translators: %s slug. */
			return new \WP_Error( 'woocommerce_rest_invalid_product_attribute_slug_too_long', sprintf( __( 'Slug "%s" is too long (28 characters max). Shorten it, please.', 'woocommerce' ), $slug ), array( 'status' => 400 ) );
		} elseif ( wc_check_if_attribute_name_is_reserved( $slug ) ) {
			/* Translators: %s slug. */
			return new \WP_Error( 'woocommerce_rest_invalid_product_attribute_slug_reserved_name', sprintf( __( 'Slug "%s" is not allowed because it is a reserved term. Change it, please.', 'woocommerce' ), $slug ), array( 'status' => 400 ) );
		} elseif ( $new_data && taxonomy_exists( wc_attribute_taxonomy_name( $slug ) ) ) {
			/* Translators: %s slug. */
			return new \WP_Error( 'woocommerce_rest_invalid_product_attribute_slug_already_exists', sprintf( __( 'Slug "%s" is already in use. Change it, please.', 'woocommerce' ), $slug ), array( 'status' => 400 ) );
		}

		return true;
	}

	/**
	 * Schedule to flush rewrite rules.
	 *
	 * @deprecated 3.2.0
	 * @since 3.0.0
	 */
	protected function flush_rewrite_rules() {
		wp_schedule_single_event( time(), 'woocommerce_flush_rewrite_rules' );
	}
}