/**
* Public constructor. Overrides the parent constructor, making sure there are lft/rgt columns which make it
* compatible with nested sets.
*
* @see \Awf\Mvc\DataModel::__construct()
*
* @param Container $container
*
* @throws \RuntimeException When lft/rgt columns are not found
*/
public function __construct(\Awf\Container\Container $container = null)
{
parent::__construct($container);
if (!$this->hasField('lft') || !$this->hasField('rgt')) {
throw new \RuntimeException("Table {$this->tableName} is not compatible with TreeModel: it does not have lft/rgt columns");
}
}
