public function FileMetadata::getSupportedKeys in File metadata manager 8

Same name and namespace in other branches

1. 8.2 src/FileMetadata.php \Drupal\file_mdm\FileMetadata::getSupportedKeys()

Returns a list of supported metadata keys.

Parameters

string $metadata_id: The id of the FileMetadata plugin.

mixed $options: (optional) Allows specifying additional options to control the list of metadata keys returned.

Return value

array A simple array of metadata keys supported.

Overrides FileMetadataInterface::getSupportedKeys

File

src/FileMetadata.php, line 161

Class

FileMetadata

A file metadata object.

Namespace

Drupal\file_mdm

Code

public function getSupportedKeys($metadata_id, $options = NULL) {
  try {
    if ($plugin = $this
      ->getFileMetadataPlugin($metadata_id)) {
      $keys = $plugin
        ->getSupportedKeys($options);
    }
    else {
      $keys = NULL;
    }
  } catch (\Exception $e) {
    $this->logger
      ->error($e
      ->getMessage());
    $keys = NULL;
  }
  return $keys;
}