class-wc-rest-data-currencies-controller.php
<?php
/**
* REST API Data currencies controller.
*
* Handles requests to the /data/currencies endpoint.
*
* @package WooCommerce\RestApi
* @since 3.5.0
*/
use Automattic\WooCommerce\Internal\Traits\RestApiCache;
defined( 'ABSPATH' ) || exit;
/**
* REST API Data Currencies controller class.
*
* @package WooCommerce\RestApi
*/
class WC_REST_Data_Currencies_Controller extends WC_REST_Data_Controller {
use RestApiCache;
/**
* Endpoint namespace.
*
* @var string
*/
protected $namespace = 'wc/v3';
/**
* Route base.
*
* @var string
*/
protected $rest_base = 'data/currencies';
/**
* Constructor.
*/
public function __construct() {
$this->initialize_rest_api_cache();
}
/**
* Register routes.
*/
public function register_routes() {
register_rest_route(
$this->namespace,
'/' . $this->rest_base,
array(
array(
'methods' => WP_REST_Server::READABLE,
'callback' => $this->with_cache( array( $this, 'get_items' ) ),
'permission_callback' => array( $this, 'get_items_permissions_check' ),
),
'schema' => array( $this, 'get_public_item_schema' ),
)
);
register_rest_route(
$this->namespace,
'/' . $this->rest_base . '/current',
array(
array(
'methods' => WP_REST_Server::READABLE,
'callback' => array( $this, 'get_current_item' ),
'permission_callback' => array( $this, 'get_item_permissions_check' ),
),
'schema' => array( $this, 'get_public_item_schema' ),
)
);
register_rest_route(
$this->namespace,
'/' . $this->rest_base . '/(?P<currency>[\w-]{3})',
array(
array(
'methods' => WP_REST_Server::READABLE,
'callback' => $this->with_cache( array( $this, 'get_item' ) ),
'permission_callback' => array( $this, 'get_item_permissions_check' ),
'args' => array(
'location' => array(
'description' => __( 'ISO4217 currency code.', 'woocommerce' ),
'type' => 'string',
),
),
),
'schema' => array( $this, 'get_public_item_schema' ),
)
);
}
/**
* Get currency information.
*
* @param string $code Currency code.
* @param WP_REST_Request $request Request data.
* @return array|mixed Response data, ready for insertion into collection data.
*/
public function get_currency( $code, $request ) {
$currencies = get_woocommerce_currencies();
$data = array();
if ( ! array_key_exists( $code, $currencies ) ) {
return false;
}
$currency = array(
'code' => $code,
'name' => $currencies[ $code ],
'symbol' => get_woocommerce_currency_symbol( $code ),
);
return $currency;
}
/**
* Return the list of currencies.
*
* @param WP_REST_Request $request Request data.
* @return WP_Error|WP_REST_Response
*/
public function get_items( $request ) {
$currencies = get_woocommerce_currencies();
$data = array();
foreach ( array_keys( $currencies ) as $code ) {
$currency = $this->get_currency( $code, $request );
$response = $this->prepare_item_for_response( $currency, $request );
$data[] = $this->prepare_response_for_collection( $response );
}
return rest_ensure_response( $data );
}
/**
* Return information for a specific currency.
*
* @param WP_REST_Request $request Request data.
* @return WP_Error|WP_REST_Response
*/
public function get_item( $request ) {
$data = $this->get_currency( strtoupper( $request['currency'] ), $request );
if ( empty( $data ) ) {
return new WP_Error( 'woocommerce_rest_data_invalid_currency', __( 'There are no currencies matching these parameters.', 'woocommerce' ), array( 'status' => 404 ) );
}
return $this->prepare_item_for_response( $data, $request );
}
/**
* Return information for the current site currency.
*
* @param WP_REST_Request $request Request data.
* @return WP_Error|WP_REST_Response
*/
public function get_current_item( $request ) {
$currency = get_option( 'woocommerce_currency' );
return $this->prepare_item_for_response( $this->get_currency( $currency, $request ), $request );
}
/**
* Prepare the data object for response.
*
* @param object $item Data object.
* @param WP_REST_Request $request Request object.
* @return WP_REST_Response $response Response data.
*/
public function prepare_item_for_response( $item, $request ) {
$data = $this->add_additional_fields_to_object( $item, $request );
$data = $this->filter_response_by_context( $data, 'view' );
$response = rest_ensure_response( $data );
$response->add_links( $this->prepare_links( $item ) );
/**
* Filter currency returned from the API.
*
* @param WP_REST_Response $response The response object.
* @param array $item Currency data.
* @param WP_REST_Request $request Request used to generate the response.
*/
return apply_filters( 'woocommerce_rest_prepare_data_currency', $response, $item, $request );
}
/**
* Prepare links for the request.
*
* @param object $item Data object.
* @return array Links for the given currency.
*/
protected function prepare_links( $item ) {
$code = strtoupper( $item['code'] );
$links = array(
'self' => array(
'href' => rest_url( sprintf( '/%s/%s/%s', $this->namespace, $this->rest_base, $code ) ),
),
'collection' => array(
'href' => rest_url( sprintf( '/%s/%s', $this->namespace, $this->rest_base ) ),
),
);
return $links;
}
/**
* Get the currency schema, conforming to JSON Schema.
*
* @return array
*/
public function get_item_schema() {
$schema = array(
'$schema' => 'http://json-schema.org/draft-04/schema#',
'title' => 'data_currencies',
'type' => 'object',
'properties' => array(
'code' => array(
'type' => 'string',
'description' => __( 'ISO4217 currency code.', 'woocommerce' ),
'context' => array( 'view' ),
'readonly' => true,
),
'name' => array(
'type' => 'string',
'description' => __( 'Full name of currency.', 'woocommerce' ),
'context' => array( 'view' ),
'readonly' => true,
),
'symbol' => array(
'type' => 'string',
'description' => __( 'Currency symbol.', 'woocommerce' ),
'context' => array( 'view' ),
'readonly' => true,
),
),
);
return $this->add_additional_fields_schema( $schema );
}
/**
* Get the default entity type for response caching.
*
* @return string|null The entity type.
*/
protected function get_default_response_entity_type(): ?string {
return 'currency';
}
/**
* Get the files relevant to response caching.
*
* @param WP_REST_Request<array<string, mixed>> $request The request object.
* @param string|null $endpoint_id Optional endpoint identifier.
* @return array Array of file paths to track for cache invalidation.
*/
protected function get_files_relevant_to_response_caching( WP_REST_Request $request, ?string $endpoint_id = null ): array { // phpcs:ignore Squiz.Commenting.FunctionComment.IncorrectTypeHint
return array( 'i18n/currencies.php' );
}
/**
* Get the hooks relevant to response caching.
*
* @param WP_REST_Request<array<string, mixed>> $request The request object.
* @param string|null $endpoint_id Optional endpoint identifier.
* @return array Array of hook names to track for cache invalidation.
*/
protected function get_hooks_relevant_to_caching( WP_REST_Request $request, ?string $endpoint_id = null ): array { // phpcs:ignore Squiz.Commenting.FunctionComment.IncorrectTypeHint
return array(
'woocommerce_rest_prepare_data_currency',
'woocommerce_currencies',
);
}
/**
* Whether the response cache should vary by user.
*
* @param WP_REST_Request<array<string, mixed>> $request The request object.
* @param string|null $endpoint_id Optional endpoint identifier.
* @return bool False since currency data doesn't vary by user.
*/
protected function response_cache_vary_by_user( WP_REST_Request $request, ?string $endpoint_id = null ): bool { // phpcs:ignore Squiz.Commenting.FunctionComment.IncorrectTypeHint
return false;
}
/**
* Extract entity IDs from response data.
*
* Currencies don't have entity IDs, cache invalidation is file-based.
*
* @param array $response_data Response data.
* @param WP_REST_Request<array<string, mixed>> $request The request object.
* @param string|null $endpoint_id Optional endpoint identifier.
* @return array Empty array since currencies don't have entity IDs.
*/
protected function extract_entity_ids_from_response( array $response_data, WP_REST_Request $request, ?string $endpoint_id = null ): array { // phpcs:ignore Squiz.Commenting.FunctionComment.IncorrectTypeHint
return array();
}
}
