private function compress($metadata, $attachment_id) { $mime_type = get_post_mime_type($attachment_id); $tiny_metadata = new Tiny_Metadata($attachment_id, $metadata); if ($this->settings->get_compressor() === null || strpos($mime_type, 'image/') !== 0) { return $metadata; } $success = 0; $failed = 0; $compressor = $this->settings->get_compressor(); $sizes = $this->settings->get_tinify_sizes(); $missing = $tiny_metadata->get_missing_sizes($sizes); foreach ($missing as $size) { try { $tiny_metadata->add_request($size); $tiny_metadata->update(); $response = $compressor->compress_file($tiny_metadata->get_filename($size)); $tiny_metadata->add_response($response, $size); $success++; } catch (Tiny_Exception $e) { $tiny_metadata->add_exception($e, $size); $failed++; } } $tiny_metadata->update(); return array($tiny_metadata, array('success' => $success, 'failed' => $failed)); }