[DDC-1942] problem with serialize/merging entities with aggregation Created: 24/Jul/12  Updated: 29/Apr/14  Resolved: 27/Feb/13

Status: Resolved
Project: Doctrine 2 - ORM
Component/s: ORM
Affects Version/s: 2.2.2
Fix Version/s: None

Type: Bug Priority: Major
Reporter: gabriel sancho Assignee: Marco Pivetta
Resolution: Duplicate Votes: 3
Labels: merge, serialize
Environment:

linux, php 5.4.4, apache 2.2.22, mysql 5.5


Attachments: Text File project_debug.log    

 Description   

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]


 Comments   
Comment by gabriel sancho [ 24/Jul/12 ]

if i call $em->find() i still not able to view the object

//----------------------------------------
$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]

$aux_orm = $em->find('nuevo_paquete\Clase_01', 1);
echo '['.$aux_orm->getId().']'; // [1]
echo '['.$aux_orm->getClase_03()->getId().']'; // still empty [] expected : [1]

//----------------------------------------
and if i have another register referencing the same object of class_03, i can't view
ej:

$aux_orm = $em->find('nuevo_paquete\Clase_01', 2);
echo '['.$aux_orm->getId().']'; // [2]
echo '['.$aux_orm->getClase_03()->getId().']'; // still empty [] expected : [1]
Comment by Marquez Alejandra [ 24/Jul/12 ]

i have the same problem

Comment by Benjamin Eberlei [ 29/Jul/12 ]

formatted code

Comment by Benjamin Eberlei [ 29/Jul/12 ]

Can you paste a var_dump() of class1 after you call detach and before serialize and then another one after you called unserialize? Also a var_dump of the serialized string $aux_s

Comment by gabriel sancho [ 30/Jul/12 ]

var_dump in attached file

Comment by gabriel sancho [ 11/Sep/12 ]

i found that if the class has more than two levels have the same problem
by ex. i have to do

// class1 -> register id 1
// class2 -> register id 1
// class3 -> null, don't exist
$class2 = $class1->getClass2();
$class3 = $class2->getClass3();
$class3->getId();

otherwise doctrine insert new registers in database for class3
after unserialize

Comment by gonzalo [ 11/Sep/12 ]

I have same problems

Comment by gabriel sancho [ 11/Sep/12 ]

if i declare in the entity annotation fetch="EAGER" works fine

Comment by Valentin Claras [ 11/Dec/12 ]

I have the same problem.

From what I saw, if I use fetch: EAGER, all my distinct entities are merged indeed, but if a specific entity (instance) is in two different collections, only one collection will have this instance.

So, any news about this bug ?

Comment by Valentin Claras [ 13/Dec/12 ]

I'm still trying to get my stuff works, and I'm now pretty sure that as soon as an object have to be merge more than once in a row (because of cascade associations), it end up being only in one collection, and lost for other entities.

I hope this could help.

Comment by Marco Pivetta [ 23/Jan/13 ]

I think this one is also related with DDC-1734 (noticed a lot of un-initialized objects).

gabriel sancho can you please try initializing ALL of these related objects prior to detaching/serializing and repeat your checks?

Comment by gabriel sancho [ 24/Jan/13 ]

How do I have to initialize the objects?

Comment by Marco Pivetta [ 24/Jan/13 ]

gabriel sancho by calling any method that is not `getId` on them.
This will initialize them

Comment by Marco Pivetta [ 23/Feb/13 ]

gabriel sancho news on this one? Managed to verify it?

Comment by Marco Pivetta [ 23/Feb/13 ]

This may be a duplicate of DDC-2306

Comment by Benjamin Eberlei [ 26/Feb/13 ]

A related Github Pull-Request [GH-585] was closed
https://github.com/doctrine/doctrine2/pull/585

Comment by Marco Pivetta [ 27/Feb/13 ]

This issue is valid only before the fix introduced at DDC-2306. Duplicate confirmed

Comment by Doctrine Bot [ 29/Apr/14 ]

A related Github Pull-Request [GH-585] was closed:
https://github.com/doctrine/dbal/pull/585

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