public function __construct(array $attributes, $content)
{
parent::__construct($attributes);
if (!$content) {
throw new ConfigurationException(sprintf('Missing content for Button: %s', $this->id));
}
$this->content = $content;
}
public function __construct(array $attributes)
{
parent::__construct($attributes);
$this->value = $this->requiredAttribute('value');
}
