Cant convert onetoone to onetomany in doctrine using symfony2 - php

Question

I got hired about 2 weeks in a company, and my first task was to update and implement new features in an existing software written in symfony2-doctrine. But one of the changes I must make is just breaking my back.
The previous model was: one "cliente" (costumer) could have only one "credito" (credit) and one "credito" could have many "venta" (sales)
The new model should be: one "cliente" (costumer) can have many "credito" and one "credito" can have many "venta" (Im keeping the onetomany association for backwards compatibity)
This is how my entities look like this:
cliente.php
class Cliente {
//put your code here
/**
* #ORM\Id
* #ORM\Column(type="integer")
* #ORM\GeneratedValue(strategy="IDENTITY")
*/
protected $id;
/**
* #ORM\Column(type="string")
* #Assert\NotBlank()
*/
protected $nombre;
/**
* #ORM\Column(type="string", unique=true)
* #Assert\NotBlank()
*/
protected $documento;
/**
* #ORM\Column(type="string", nullable=true)
*/
protected $direccion;
/**
* #ORM\Column(type="string", nullable=true)
*/
protected $telefono;
/**
* #ORM\Column(type="string", nullable=true)
*/
protected $celular;
/**
* #ORM\Column(type="string", nullable=true)
* #Assert\Email()
*/
protected $email;
/**
* #ORM\Column(type="string", nullable=true)
*/
protected $ciudad;
/**
* #ORM\Column(type="string", nullable=true)
*/
protected $departamento;
/**
* #ORM\Column(type="string", nullable=true)
*/
protected $referenciaFamiliar;
/**
* #ORM\Column(type="string", nullable=true)
*/
protected $referenciaFamiliarTelefono;
/**
* #ORM\Column(type="string", nullable=true)
*/
protected $referenciaPersonal;
/**
* #ORM\Column(type="string", nullable=true)
*/
protected $referenciaPersonalTelefono;
/**
* #ORM\OneToMany(targetEntity="Credito", mappedBy="cliente", cascade={"all"})
*/
protected $credito;
/**
* #ORM\Column(type="string", nullable=true, length=255)
*/
protected $photo;
/**
* #Assert\File(maxSize="300k", mimeTypes={"image/jpeg","image/png"},mimeTypesMessage="Debe subir una imagen JPG o PNG",maxSizeMessage="La imagen no puede pesar más de 300 kb.")
*/
protected $file;
credito.php
class Credito {
//put your code here
/**
* #ORM\Id
* #ORM\Column(type="integer")
* #ORM\GeneratedValue(strategy="IDENTITY")
*/
protected $id;
/**
* #ORM\Column(type="string",nullable=true)
* #Assert\NotBlank()
*/
protected $cc;
/**
* #ORM\Column(type="datetime",nullable=false)
* #Assert\DateTime()
*/
protected $fechaRegistro;
/**
* #ORM\ManyToOne(targetEntity="Cliente",cascade={"persist"})
* #ORM\JoinColumn(name="cliente_id",referencedColumnName="id")
*/
protected $cliente;
/**
* #ORM\OneToMany(targetEntity="Venta", mappedBy="credito",cascade={"all"})
*/
protected $ventas;
/**
* #ORM\OneToMany(targetEntity="Abono", mappedBy="credito",cascade={"persist"})
*/
protected $abonos;
/**
* #ORM\Column(type="datetime",nullable=true)
* #Assert\DateTime()
*/
protected $fechaProximoPago;
/**
* #ORM\Column(type="decimal",scale=3, precision=23)
* #Assert\NotBlank()
*/
protected $valorProximoPago;
/**
* #ORM\Column(type="integer")
* #Assert\NotBlank()
*/
protected $cuotasTotales;
/**
* #ORM\Column(type="integer")
* #Assert\NotBlank()
*/
protected $cuotasPagadas;
/**
* #ORM\ManyToOne(targetEntity="ModoPagoNom")
* #ORM\JoinColumn(name="modo_pago_id",referencedColumnName="id")
*/
protected $modoPago;
/**
* #ORM\Column(type="decimal",scale=3, precision=23)
* #Assert\NotBlank()
*/
protected $valorFinanciado;
/**
* #ORM\Column(type="decimal",scale=3, precision=23)
* #Assert\NotBlank()
*/
protected $cupo;
/**
* #ORM\Column(type="decimal",scale=3, precision=23)
* #Assert\NotBlank()
*/
protected $cupoUsado;
venta.php
class Venta{
//put your code here
/**
* #ORM\Id
* #ORM\Column(type="integer")
* #ORM\GeneratedValue(strategy="IDENTITY")
*/
protected $id;
/**
* #ORM\Column(type="datetime")
* #Assert\DateTime()
*/
protected $fecha;
/**
* #ORM\Column(type="datetime")
* #Assert\DateTime()
*/
protected $fechaPrimerPago;
/**
* #ORM\Column(type="string")
* #Assert\NotBlank()
*/
protected $numeroFactura;
/**
* #ORM\Column(type="string")
* #Assert\NotBlank()
*/
protected $numeroAutorizo;
/**
* #ORM\Column(type="decimal",scale=3, precision=23)
* #Assert\Min(limit="0", message="El valor de la factura debe ser positivo")
*/
protected $valorFactura;
/**
* #ORM\Column(type="integer")
* #Assert\Type("integer")
* #Assert\Min(limit="1", message="Debe especificar al menos una cuota")
*/
protected $numeroCuotas;
/**
* #ORM\Column(type="integer")
* #Assert\Min(0)
*/
protected $cuotasPagadas;
/**
* #ORM\ManyToOne(targetEntity="ModoPagoNom")
* #ORM\JoinColumn(name="modo_pago_id",referencedColumnName="id")
*/
protected $modoPago;
/**
* #ORM\ManyToOne(targetEntity="Credito",cascade={"persist"})
* #ORM\JoinColumn(name="credito_id",referencedColumnName="id")
*/
protected $credito;
/**
* #ORM\Column(type="decimal",scale=3, precision=23)
* #Assert\Min(0.0)
*/
protected $valorFinanciado;
/**
* #ORM\Column(type="decimal",scale=3, precision=23)
* #Assert\Min(0.0)
*/
protected $valorCuota;
/**
* #ORM\Column(type="decimal",scale=3, precision=23)
* #Assert\Min(0.0)
*/
protected $valorPrimeraCuota;
/**
* #ORM\ManyToOne(targetEntity="Almacen")
* #ORM\JoinColumn(name="almacen_id",referencedColumnName="id")
*/
protected $almacen;
/**
* Get id
*
* #return integer
*/
The problem is: everytime I insert a new "credito", it wont be linked to the existing "cliente" instead of that, it will try to insert a duplicate entry of "cliente".
I've tried many things but none of them had any effect.
I appreciate any help, cause Im stuck with that.
If further information or code is required I will gladly provide it.

Answer 1

The cascade={"persist"} should be the core of your problem:
class Credito {
......
/**
* #ORM\ManyToOne(targetEntity="Cliente",cascade={"persist"})
* #ORM\JoinColumn(name="cliente_id",referencedColumnName="id")
*/
protected $cliente;
It tells doctrine to persist cleinte always when you persist Credito.
See docs for more details http://doctrine-orm.readthedocs.org/en/latest/reference/working-with-associations.html#transitive-persistence-cascade-operations

Answer 2

Always tell Doctrine how to do in both sides of an association :
// credito.php
/**
* #ORM\ManyToOne(targetEntity="Cliente", inversedBy="credito", cascade={"persist"})
* #ORM\JoinColumn(name="cliente_id",referencedColumnName="id")
*/
protected $cliente;
And
// venta.php
/**
* #ORM\ManyToOne(targetEntity="Credito", inversedBy="ventas", cascade={"persist"})
* #ORM\JoinColumn(name="credito_id",referencedColumnName="id")
*/
protected $credito;