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rest_preload_api_request ( $memo, $path )
rest_preload_api_request: 这是一个WordPress动作,在WordPress REST API处理一个请求之前被触发。这个动作用于在处理请求前预装数据或执行其他设置任务。
将内部请求的结果附加到REST API上,以便预先加载数据,附加到页面上。
预计将在`array_reduce`的背景下调用。
function rest_preload_api_request( $memo, $path ) { // array_reduce() doesn't support passing an array in PHP 5.2, // so we need to make sure we start with one. if ( ! is_array( $memo ) ) { $memo = array(); } if ( empty( $path ) ) { return $memo; } $method = 'GET'; if ( is_array( $path ) && 2 === count( $path ) ) { $method = end( $path ); $path = reset( $path ); if ( ! in_array( $method, array( 'GET', 'OPTIONS' ), true ) ) { $method = 'GET'; } } $path = untrailingslashit( $path ); if ( empty( $path ) ) { $path = '/'; } $path_parts = parse_url( $path ); if ( false === $path_parts ) { return $memo; } $request = new WP_REST_Request( $method, $path_parts['path'] ); if ( ! empty( $path_parts['query'] ) ) { parse_str( $path_parts['query'], $query_params ); $request->set_query_params( $query_params ); } $response = rest_do_request( $request ); if ( 200 === $response->status ) { $server = rest_get_server(); /** This filter is documented in wp-includes/rest-api/class-wp-rest-server.php */ $response = apply_filters( 'rest_post_dispatch', rest_ensure_response( $response ), $server, $request ); $embed = $request->has_param( '_embed' ) ? rest_parse_embed_param( $request['_embed'] ) : false; $data = (array) $server->response_to_data( $response, $embed ); if ( 'OPTIONS' === $method ) { $memo[ $method ][ $path ] = array( 'body' => $data, 'headers' => $response->headers, ); } else { $memo[ $path ] = array( 'body' => $data, 'headers' => $response->headers, ); } } return $memo; }