Get the old data in preUpdate SonataAdminBundle

[tttony]

I have a product entity and it has an images field that store the images names from the product but the images names depends of a part_number field that is unique, so if the user make a mistake in the part number and he wants to edit it then I also have to change the images names

I tried this but it does not works:

// class ProductsAdmin extends Admin

public function preUpdate($product) {

    $old_product = $this->getSubject();

    if ($old_product->getPartNumber() != $product->getPartNumber)
    {
         // change file names
    }

    $this->saveFile($product);
}
 

How I get the original row in preUpdate() function?

Or there is other better way?

[l3ia-et]

you have to use the doctrine listener

in the orm.yml

 entityListeners:

  l3ia\Bundle\ERPBundle\Listener\ReglementFactureListener:

   preUpdate: [preUpdateHandler]

   postUpdate: [postUpdateHandler]

   postRemove: [postRemoveHandler]

public function preUpdateHandler(ReglementFacture $rf, PreUpdateEventArgs $args)

{

if ($args->hasChangedField('facture'))

{

$this->old_facture = $args->getOldValue('facture');

}

}

[M Khalid Junaid]

You can use Unit Of Work

As from docs You can get direct access to the Unit of Work by calling EntityManager#getUnitOfWork(). This will return the UnitOfWork instance the EntityManager is currently using.An array containing the original data of entity

I have answered on stackoverflow see below link for more details
 

Symfony 2 Get original data of entity from entity manager