Symfony update Entity value + 1 - mysql

Question

I would like to summate or add one up while I update an existing db entry.
For the Reason that I will have to work with MagicCalls, I just wonder how I can handle this.
In raw sql, I would do it like:
UPDATE table SET value= value + 1 WHERE ....
But in this case, I have absolutely no idea how to work it out.
My code looks like:
Entity:
class Properties
{
/**
* #var integer
*
* #ORM\Column(name="id", type="integer")
* #ORM\Id
* #ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* #var string
*
* #ORM\Column(name="Sport", type="string", length=11, nullable=true)
*/
private $sport;
/**
* #var string
*
* #ORM\Column(name="Entertainment", type="string", length=11, nullable=true)
*/
private $entertainment;
/**
* #var string
*
* #ORM\Column(name="Wellness", type="string", length=11, nullable=true)
*/
private $wellness;
Now, I get those column names by
$metadata = $em->getClassMetadata($className);
$columnNames=$metadata->getColumnNames();
I recieve an array, which I can foreach and add values to each of them which I will have to write back by using an accessor:
$properties= new Properties();
$accessor = PropertyAccess::createPropertyAccessorBuilder()
->enableMagicCall()
->getPropertyAccessor();
foreach($columnNames as $merkmale) {
$accessor->setValue($properties, $merkmale, 1);
}
So how can I handle an update by counting one up ? I missed something I guess

Answer 1

Why don't you use Lifecycle callbacks? This way you can choose doctrine event which suits your case best and increment all values you need in one method.
/**
* #ORM\Entity()
* #ORM\HasLifecycleCallbacks()
*/
class Properties
{
/**
* #var string
*
* #ORM\Column(name="Sport", type="string", length=11, nullable=true)
*/
private $sport;
/**
* #var string
*
* #ORM\Column(name="Entertainment", type="string", length=11, nullable=true)
*/
private $entertainment;
/**
* #var string
*
* #ORM\Column(name="Wellness", type="string", length=11, nullable=true)
*/
private $wellness;
/**
* #ORM\PrePersist
*/
public function incrementValues()
{
$this->entertainment = 1; //you don't need any magic any more
$this->wellness = $this->wellness + 5; //you can access your entity values directly
}
}
All you need to do is annotate your entity with #ORM\HasLifecycleCallbacks() and add method which you also need to annotate with given event, like #ORM\PrePersist and this method will be called by doctrine each time this event occurs