[DDC-2163] Export entity data to array and create new entity by this array

Tue, 27 Nov 2012 07:00:44 +0000

Entity serialization is really pain operation for doctrine2 entities, but why we need serialization? If we may just get array of table's row for entity and store this array anywhere!

For example, we have Entity:

id, category_id, title

(where category_id is many to one to Category entity)

If we will able to get just array from entity like
array(
'id' => 1,
'category_id' => 2,
'title' => 'Some title'
)
That's all!

I look at code and find a place where table row converted to object: https://github.com/doctrine/doctrine2/blob/master/lib/Doctrine/ORM/Internal/Hydration/ObjectHydrator.php#L341

This method is protected, so we can't call it directly. Can we change it to public?

Another question how we can get this raw values array from entity. I found method https://github.com/doctrine/doctrine2/blob/master/lib/Doctrine/ORM/UnitOfWork.php#L2692 but it return data with related entities.

[DDC-1942] problem with serialize/merging entities with aggregation

Wed, 27 Feb 2013 00:11:16 +0000

i have these two entities:

namespace nuevo_paquete;

class Clase_01{
	/**
	* @Id
	* @Column(name="id",type="integer",nullable=false)
	* @GeneratedValue
	*/
	protected $id;
        
        /**
	* @ManyToOne(targetEntity="\paquete_02\Clase_03", inversedBy="clase_01", fetch="EXTRA_LAZY", cascade={"detach","merge"})
	* @JoinColumn(name="clase_03", referencedColumnName="id")
	*/
	protected $clase_03;

        /**
	* @ManyToOne(targetEntity="\paquete_02\Clase_03", inversedBy="clase_01_1", fetch="EXTRA_LAZY", cascade={"detach","merge"})
	* @JoinColumn(name="clase_03_1", referencedColumnName="id")
	*/
	protected $clase_03_1;
}

namespace paquete_02;
class Clase_03{
   /**
	* @Id
	* @Column(name="id",type="integer",nullable=false)
	* @GeneratedValue
	*/
	protected $id;

        /**
	* @OneToMany(targetEntity="\nuevo_paquete\Clase_01", mappedBy="clase_03", fetch="EXTRA_LAZY", cascade={"detach"})
	*/
	protected $clase_01;
	
	/**
	* @OneToMany(targetEntity="\nuevo_paquete\Clase_01", mappedBy="clase_03_1", fetch="EXTRA_LAZY", cascade={"detach"})
	*/
	protected $clase_01_1;
}

Clase_01 have two aggregation association with Clase_03

Clase_01 ------> Clase_03

-----> Clase_03_1

when serialize an object of class Clase_01 and then unserialize, i lost the reference to the object of class Clase_03
but i can see Clase_03_1

ej:

$aux_orm = $em->find('nuevo_paquete\Clase_01', 1);
$em->detach($aux_orm);
$aux_s = serialize($aux_orm);
$aux_orm = unserialize($aux_s);

$aux_orm = $em->merge($aux_orm);
echo '['.$aux_orm->getId().']'; // [1]
echo '['.$aux_orm->getClase_03()->getId().']'; // [] expected : [1]
echo '['.$aux_orm->getClase_03_1()->getId().']'; // [1]

when i call get_clase_03() before detach the object, i can see the object Clase_03
ej:

$aux_orm = $em->find('nuevo_paquete\Clase_01', 1);
$aux_orm->getClase_03()->getId();

$em->detach($aux_orm);
$aux_s = serialize($aux_orm);
$aux_orm = unserialize($aux_s);

$aux_orm = $em->merge($aux_orm);
echo '['.$aux_orm->getId().']'; // [1]
echo '['.$aux_orm->getClase_03()->getId().']'; // [1]
echo '['.$aux_orm->getClase_03_1()->getId().']'; // [1]

Doctrine Project

[DDC-2163] Export entity data to array and create new entity by this array

[DDC-1942] problem with serialize/merging entities with aggregation