public function getFieldMetadata($contenttype, $column, $field = null)
{
if ($field !== null) {
if (isset($this->metadata[$contenttype]['fields'][$column]['data']['fields'][$field])) {
$metadata = $this->metadata[$contenttype]['fields'][$column]['data']['fields'][$field];
}
} elseif (isset($this->metadata[$contenttype]['fields'][$column])) {
$metadata = $this->metadata[$contenttype]['fields'][$column];
}
return $metadata;
}