public function getMapping($contentTypeIdentifier, $fieldIdentifier)
    {
        $key = $contentTypeIdentifier . '.' . $fieldIdentifier;

        if (!isset($this->fieldMappings[$key])) {
            return false;
        }

        $identifier = explode('.', $this->fieldMappings[$key]);

        return array(
            'content' => $identifier[0],
            'field' => $identifier[1],
        );
    }