Doctrine 2 persist only save header object why? - php

Question

I want save purchase order header with purchase order details.This my PurchaseOrder Entity Class=>
namespace AppBundle\Entity;
use AppBundle\Entity\PurchaseInvoiceDetail;
use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\ORM\Mapping as ORM;
/**
* PurchaseOrder
*
* #ORM\Table(name="purchase_order", indexes={#ORM\Index(name="fk_purchase_order_supplier1_idx", columns={"supplier_id"})})
* #ORM\Entity
*/
class PurchaseOrder
{
/**
* #var PurchaseOrderDetails
*
* #ORM\OneToMany(targetEntity="AppBundle\Entity\PurchaseOrderDetails", mappedBy="purchaseOrder",cascade={"cascade"})
* #JMS\Type("ArrayCollection<FinanceBundle\Entity\AutoAllocation>")
*/
private $purchaseOrderDetails;
public function __construct()
{
$this->purchaseOrderDetails = new ArrayCollection();
}
public function addPurchaseOrderDetail(PurchaseOrderDetails $purchaseOrderDetails)
{
$this->purchaseOrderDetails->add($purchaseOrderDetails);
}
/**
* #return PurchaseOrderDetails
*/
public function getPurchaseOrderDetails()
{
return $this->purchaseOrderDetails;
}
/**
* #param PurchaseOrderDetails $purchaseOrderDetails
*/
public function setPurchaseOrderDetails($purchaseOrderDetails)
{
$this->purchaseOrderDetails = $purchaseOrderDetails;
}
}
and PurchaseOrderDetail class as this =>
<?php
namespace AppBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
/**
* PurchaseOrderDetails
*
* #ORM\Table(name="purchase_order_details", indexes={#ORM\Index(name="fk_purchase_order_details_purchase_order1_idx", columns={"purchase_order_id"}), #ORM\Index(name="fk_purchase_order_details_invt_item1_idx", columns={"id_item"})})
* #ORM\Entity
*/
class PurchaseOrderDetails
{
/**
* #var \AppBundle\Entity\PurchaseOrder
*
* #ORM\ManyToOne(targetEntity="AppBundle\Entity\PurchaseOrder",inversedBy="purchaseOrderDetails")
* #ORM\JoinColumns({
* #ORM\JoinColumn(name="purchase_order_id", referencedColumnName="id")
* })
*/
private $purchaseOrder;
/**
* Set purchaseOrder
*
* #param \AppBundle\Entity\PurchaseOrder $purchaseOrder
*
* #return PurchaseOrderDetails
*/
public function setPurchaseOrder(\AppBundle\Entity\PurchaseOrder $purchaseOrder = null)
{
$this->purchaseOrder = $purchaseOrder;
return $this;
}
/**
* Get purchaseOrder
*
* #return \AppBundle\Entity\PurchaseOrder
*/
public function getPurchaseOrder()
{
return $this->purchaseOrder;
}
}
my php code in symfony 3.1 as follows=>
$em = $this->getDoctrine()->getManager();
$purchaseOrder = new PurchaseOrder();
$puchaseOrderDetail = new PurchaseOrderDetails();
$puchaseOrderDetail->setPrice(100);
$purchaseOrder->setPurchaseOrderDetails($puchaseOrderDetail);
$puchaseOrderDetail->setPurchaseOrder($purchaseOrder);
$em->persist($purchaseOrder);
$em->flush();
no errors occurred and just only purchase order have persisted and purchase order detail doesn't

Answer 1

You are not persisting the detail object. Either persist it manually with
$em->persist($purchaseOrderDetail);
or fix
cascade={"persist"}
in the #ORM\OneToMany annotation of PurchaseOrder::$purchaseOrderDetails (cascade={"cascade"} is probably a typo).

Answer 2

You need to persist PurchaseOrderDetails as well.
The below code should save both of your entities.
$em = $this->getDoctrine()->getManager();
$purchaseOrder = new PurchaseOrder();
$puchaseOrderDetail = new PurchaseOrderDetails();
$puchaseOrderDetail->setPrice(100);
$purchaseOrder->setPurchaseOrderDetails($puchaseOrderDetail);
$puchaseOrderDetail->setPurchaseOrder($purchaseOrder);
$em->persist($purchaseOrder);
$em->persist($puchaseOrderDetail);
$em->flush();
As #Finwe has mentioned, If your business logic requires, and you don't want to persist separately PurchaseOrderDetails entity while creating a new PurchaseOrder. You might consider configuring cascade_persist. which will persist automatically associated entity.
To do so, add cascade option to your association config :
#ORM\OneToMany(targetEntity="AppBundle\Entity\PurchaseOrderDetails", mappedBy="purchaseOrder",cascade={"persist"})