/**
* Representação textual da coluna.
*
* @return string
* */
public function render()
{
$column = QueryAbstract::quotesIf($this->_name);
$entity = $this->entity();
if ($entity instanceof Entity) {
$entity = $this->toggle($entity->alias(), $entity->name());
}
$entity = $entity ? $entity . '.' : NULL;
# esta verifica eh necessario por causa das Expression
if ($this->_name instanceof Renderizable) {
$column = $this->_name->render();
$entity = NULL;
}
if ($this->_alias) {
$column .= " AS {$this->_alias}";
}
return "{$entity}{$column}";
}
/**
* @return string
* */
public function name()
{
return QueryAbstract::quotesIf($this->_name);
}
