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<?php
/**
* REST API Product Variations Controller
*
* Handles requests to /products/variations.
*/
namespace Automattic\WooCommerce\Admin\API;
defined( 'ABSPATH' ) || exit;
/**
* Product variations controller.
*
* @internal
* @extends WC_REST_Product_Variations_Controller
*/
class ProductVariations extends \WC_REST_Product_Variations_Controller {
/**
* Endpoint namespace.
*
* @var string
*/
protected $namespace = 'wc-analytics';
/**
* Register the routes for products.
*/
public function register_routes() {
parent::register_routes();
// Add a route for listing variations without specifying the parent product ID.
register_rest_route(
$this->namespace,
'/variations',
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(),
),
'schema' => array( $this, 'get_public_item_schema' ),
)
);
}
/**
* Get the query params for collections.
*
* @return array
*/
public function get_collection_params() {
$params = parent::get_collection_params();
$params['search'] = array(
'description' => __( 'Search by similar product name, sku, or attribute value.', 'woocommerce' ),
'type' => 'string',
'validate_callback' => 'rest_validate_request_arg',
);
return $params;
}
/**
* Add in conditional search filters for variations.
*
* @internal
* @param string $where Where clause used to search posts.
* @param object $wp_query WP_Query object.
* @return string
*/
public static function add_wp_query_filter( $where, $wp_query ) {
global $wpdb;
$search = $wp_query->get( 'search' );
if ( $search ) {
$like = '%' . $wpdb->esc_like( $search ) . '%';
$conditions = array(
$wpdb->prepare( "{$wpdb->posts}.post_title LIKE %s", $like ), // phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
$wpdb->prepare( 'attr_search_meta.meta_value LIKE %s', $like ), // phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
);
if ( wc_product_sku_enabled() ) {
$conditions[] = $wpdb->prepare( 'wc_product_meta_lookup.sku LIKE %s', $like );
}
$where .= ' AND (' . implode( ' OR ', $conditions ) . ')';
}
return $where;
}
/**
* Join posts meta tables when variation search query is present.
*
* @internal
* @param string $join Join clause used to search posts.
* @param object $wp_query WP_Query object.
* @return string
*/
public static function add_wp_query_join( $join, $wp_query ) {
global $wpdb;
$search = $wp_query->get( 'search' );
if ( $search ) {
$join .= " LEFT JOIN {$wpdb->postmeta} AS attr_search_meta
ON {$wpdb->posts}.ID = attr_search_meta.post_id
AND attr_search_meta.meta_key LIKE 'attribute_%' ";
}
if ( wc_product_sku_enabled() && ! strstr( $join, 'wc_product_meta_lookup' ) ) {
$join .= " LEFT JOIN {$wpdb->wc_product_meta_lookup} wc_product_meta_lookup
ON $wpdb->posts.ID = wc_product_meta_lookup.product_id ";
}
return $join;
}
/**
* Add product name and sku filtering to the WC API.
*
* @param WP_REST_Request $request Request data.
* @return array
*/
protected function prepare_objects_query( $request ) {
$args = parent::prepare_objects_query( $request );
if ( ! empty( $request['search'] ) ) {
$args['search'] = $request['search'];
unset( $args['s'] );
}
// Retrieve variations without specifying a parent product.
if ( "/{$this->namespace}/variations" === $request->get_route() ) {
unset( $args['post_parent'] );
}
return $args;
}
/**
* Get a collection of posts and add the post title filter option to WP_Query.
*
* @param WP_REST_Request $request Full details about the request.
* @return WP_Error|WP_REST_Response
*/
public function get_items( $request ) {
add_filter( 'posts_where', array( __CLASS__, 'add_wp_query_filter' ), 10, 2 );
add_filter( 'posts_join', array( __CLASS__, 'add_wp_query_join' ), 10, 2 );
add_filter( 'posts_groupby', array( 'Automattic\WooCommerce\Admin\API\Products', 'add_wp_query_group_by' ), 10, 2 );
$response = parent::get_items( $request );
remove_filter( 'posts_where', array( __CLASS__, 'add_wp_query_filter' ), 10 );
remove_filter( 'posts_join', array( __CLASS__, 'add_wp_query_join' ), 10 );
remove_filter( 'posts_groupby', array( 'Automattic\WooCommerce\Admin\API\Products', 'add_wp_query_group_by' ), 10 );
return $response;
}
/**
* Get the Product's schema, conforming to JSON Schema.
*
* @return array
*/
public function get_item_schema() {
$schema = parent::get_item_schema();
$schema['properties']['name'] = array(
'description' => __( 'Product parent name.', 'woocommerce' ),
'type' => 'string',
'context' => array( 'view', 'edit' ),
);
$schema['properties']['type'] = array(
'description' => __( 'Product type.', 'woocommerce' ),
'type' => 'string',
'default' => 'variation',
'enum' => array( 'variation' ),
'context' => array( 'view', 'edit' ),
);
$schema['properties']['parent_id'] = array(
'description' => __( 'Product parent ID.', 'woocommerce' ),
'type' => 'integer',
'context' => array( 'view', 'edit' ),
);
return $schema;
}
/**
* Prepare a single variation output for response.
*
* @param WC_Data $object Object data.
* @param WP_REST_Request $request Request object.
* @return WP_REST_Response
*/
public function prepare_object_for_response( $object, $request ) {
$context = empty( $request['context'] ) ? 'view' : $request['context'];
$response = parent::prepare_object_for_response( $object, $request );
$data = $response->get_data();
$data['name'] = $object->get_name( $context );
$data['type'] = $object->get_type();
$data['parent_id'] = $object->get_parent_id( $context );
$response->set_data( $data );
return $response;
}
}
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