Сохранять данные со связанными объектами

У меня есть форма Бюджет, которая перечисляет данные от объекта клиента в select поле. Подведение итогов, бюджет и клиент связаны друг с другом. Бюджет имеет client_id столбец, то есть предположим, что хранить его, получая id значение из выбранного клиента.

<form action="{{ path('panel_add_budget') }}" method="POST">
<strong>Cliente</strong>
<div class="form-group">
<select name="cdg_budget_type[client_id]" class="form-control">
{% for client in clients %}
<option value="{{ client.id }}">{{ client.name }}</option>
{% endfor %}
</select>
</div>

<div class="form-group">
{{ form_row(form.address) }}
</div>
<div class="form-group">
{{ form_row(form.installments) }}
</div>
<div class="form-group">
{{ form_row(form.check_days) }}
</div>
<div class="form-group">
{{ form_row(form.date_start) }}
</div>
<div class="form-group">
{{ form_row(form.total_value) }}
</div>

<button type="submit" class="btn btn-success">Adicionar</button>
</form>

Мой клиентский объект:

class Client
{
/**
* @var integer
*/
private $id;

/**
* @var string
*/
private $name;

/**
* @var string
*/
private $phone;

/**
* @var string
*/
private $email;

/**
* @var string
*/
private $streetName;

/**
* @var string
*/
private $district;

/**
* @var string
*/
private $number;

/**
* @var string
*/
private $city;

/**
* @var string
*/
private $zipCode;

/**
* @var integer
*/
private $budget;


/**
* Get id
*
* @return integer
*/
public function getId()
{
return $this->id;
}

/**
* Set name
*
* @param string $name
* @return Client
*/
public function setName($name)
{
$this->name = $name;

return $this;
}

/**
* Get name
*
* @return string
*/
public function getName()
{
return $this->name;
}

/**
* Set phone
*
* @param string $phone
* @return Client
*/
public function setPhone($phone)
{
$this->phone = $phone;

return $this;
}

/**
* Get phone
*
* @return string
*/
public function getPhone()
{
return $this->phone;
}

/**
* Set email
*
* @param string $email
* @return Client
*/
public function setEmail($email)
{
$this->email = $email;

return $this;
}

/**
* Get email
*
* @return string
*/
public function getEmail()
{
return $this->email;
}

/**
* Set streetName
*
* @param string $streetName
* @return Client
*/
public function setStreetName($streetName)
{
$this->streetName = $streetName;

return $this;
}

/**
* Get streetName
*
* @return string
*/
public function getStreetName()
{
return $this->streetName;
}

/**
* Set district
*
* @param string $district
* @return Client
*/
public function setDistrict($district)
{
$this->district = $district;

return $this;
}

/**
* Get district
*
* @return string
*/
public function getDistrict()
{
return $this->district;
}

/**
* Set number
*
* @param string $number
* @return Client
*/
public function setNumber($number)
{
$this->number = $number;

return $this;
}

/**
* Get number
*
* @return string
*/
public function getNumber()
{
return $this->number;
}

/**
* Set city
*
* @param string $city
* @return Client
*/
public function setCity($city)
{
$this->city = $city;

return $this;
}

/**
* Get city
*
* @return string
*/
public function getCity()
{
return $this->city;
}

/**
* Set zipCode
*
* @param string $zipCode
* @return Client
*/
public function setZipCode($zipCode)
{
$this->zipCode = $zipCode;

return $this;
}

/**
* Get zipCode
*
* @return string
*/
public function getZipCode()
{
return $this->zipCode;
}

/**
* Set budget
*
* @param integer $budget
*/
function setBudget($budget)
{
$this->budget = $budget;
}

/**
* Get budget
*
* @return integer
*/
function getBudget()
{
return $this->budget;
}
}

Бюджетная структура:

class Budget
{
/**
* @var integer
*/
private $id;

/**
* @var integer
*/
private $clientId;

/**
* @var string
*/
private $address;

/**
* @var integer
*/
private $installments;

/**
* @var integer
*/
private $checkDays;

/**
* @var \DateTime
*/
private $dateStart;

/**
* @var \DateTime
*/
private $dateCreated;

/**
* @var decimal
*/
private $totalValue;

/**
* Get id
*
* @return integer
*/
public function getId()
{
return $this->id;
}

/**
* Set clientId
*
* @param integer $clientId
* @return Budget
*/
public function setClientId($clientId)
{
$this->clientId = $clientId;

return $this;
}

/**
* Get clientId
*
* @return integer
*/
public function getClientId()
{
return $this->clientId;
}

/**
* Set address
*
* @param string $address
* @return Budget
*/
public function setAddress($address)
{
$this->address = $address;

return $this;
}

/**
* Get address
*
* @return string
*/
public function getAddress()
{
return $this->address;
}

/**
* Set installments
*
* @param integer $installments
* @return Budget
*/
public function setInstallments($installments)
{
$this->installments = $installments;

return $this;
}

/**
* Get installments
*
* @return integer
*/
public function getInstallments()
{
return $this->installments;
}

/**
* Set checkDays
*
* @param integer $checkDays
* @return Budget
*/
public function setCheckDays($checkDays)
{
$this->checkDays = $checkDays;

return $this;
}

/**
* Get checkDays
*
* @return integer
*/
public function getCheckDays()
{
return $this->checkDays;
}

/**
* Set dateStart
*
* @param \DateTime $dateStart
* @return Budget
*/
public function setDateStart($dateStart)
{
$this->dateStart = $dateStart;

return $this;
}

/**
* Get dateStart
*
* @return \DateTime
*/
public function getDateStart()
{
return $this->dateStart;
}

/**
* Set dateCreated
*
* @param \DateTime $dateCreated
* @return Budget
*/
public function setDateCreated($dateCreated)
{
$this->dateCreated = $dateCreated;

return $this;
}

/**
* Get dateCreated
*
* @return \DateTime
*/
public function getDateCreated()
{
return $this->dateCreated;
}

/**
* Set totalValue
*
* @param decimal $totalValue
* @return Budget
*/
public function setTotalValue($totalValue)
{
$this->totalValue = $totalValue;

return $this;
}

/**
* Get totalValue
*
* @return decimal
*/
public function getTotalValue()
{
return $this->totalValue;
}
}

Мои отношения OneToMany Клиента с бюджетом:

CDG\PanelBundle\Entity\Client:
type: entity
table: client
repositoryClass: CDG\PanelBundle\Entity\ClientRepository
id:
id:
type: integer
id: true
generator:
strategy: AUTO
fields:
name:
type: string
length: 255
phone:
type: string
length: 255
email:
type: string
length: 255
streetName:
type: string
length: 255
column: street_name
district:
type: string
length: 255
number:
type: string
length: 255
city:
type: string
length: 255
zipCode:
type: string
length: 255
column: zip_code
oneToMany:
budget:
targetEntity: Budget
mappedBy: clientId
lifecycleCallbacks: {  }

И мое много-единственное отношение бюджета с клиентом:

CDG\PanelBundle\Entity\Budget:
type: entity
table: budget
repositoryClass: CDG\PanelBundle\Entity\BudgetRepository
id:
id:
type: integer
id: true
generator:
strategy: AUTO
fields:
address:
type: string
length: 255
installments:
type: integer
checkDays:
type: integer
column: check_days
dateStart:
type: datetime
column: date_start
dateCreated:
type: datetime
column: date_created
totalValue:
type: decimal
column: total_value
nullable: true
manyToOne:
clientId:
targetEntity: Client
inversedBy: budget
joinColumn:
name: client_id
referencedColumnName: id
lifecycleCallbacks: {  }

Чтобы закончить, мой addAction, от BudgetController:

public function addAction(Request $request)
{
$form = $this->createForm(new BudgetType());

if ($request->getMethod() == 'POST') {
$form->handleRequest($request);

if ($form->isValid()) {
$manager = $this->getDoctrine()->getManager();
$manager->persist($form->getData());
$manager->flush();

$this->addFlash('success', 'Novo orçamento adicionado');

return $this->redirect($this->generateUrl('panel_budgets'));
}
}

return $this->render('PanelBundle:Budget:add.html.twig', array(
'clients' => $manager->getRepository('PanelBundle:Client')->findAll(),
'form' => $form->createView()
));
}

При отправке формы выдается исключение:

Предупреждение: spl_object_hash () ожидает, что параметр 1 будет объектом, задано целое число

public function getEntityState($entity, $assume = null)
{
$oid = spl_object_hash($entity);
if (isset($this->entityStates[$oid])) {
return $this->entityStates[$oid];

Своя трассировка стека:

at ErrorHandler ->handleError ('2', 'spl_object_hash() expects    parameter 1 to be object, integer given', '/home/gabriel/Documents/CasaDoGesso/vendor/doctrine/orm/lib/Doctrine/ORM/UnitOfWork.php', '1389',   array('entity' => '2', 'assume' => '2'))
at spl_object_hash ('2')
in vendor/doctrine/orm/lib/Doctrine/ORM/UnitOfWork.php at line 1389  +
at UnitOfWork ->getEntityState ('2', '2')
in vendor/doctrine/orm/lib/Doctrine/ORM/UnitOfWork.php at line 788  +
at UnitOfWork ->computeAssociationChanges (array('fieldName' =>    'clientId', 'targetEntity' => 'CDG\PanelBundle\Entity\Client', 'inversedBy' => 'budget', 'joinColumns' => array(array('referencedColumnName' => 'id', 'name' => 'client_id')), 'type' => '2', 'mappedBy' => null, 'isOwningSide' => true, 'sourceEntity' => 'CDG\PanelBundle\Entity\Budget', 'fetch' => '2', 'cascade' => array(), 'isCascadeRemove' => false, 'isCascadePersist' => false, 'isCascadeRefresh' => false, 'isCascadeMerge' => false, 'isCascadeDetach' => false, 'sourceToTargetKeyColumns' => array('client_id' => 'id'), 'joinColumnFieldNames' => array('client_id' => 'client_id'), 'targetToSourceKeyColumns' => array('id' => 'client_id'), 'orphanRemoval' => false), '2')
in vendor/doctrine/orm/lib/Doctrine/ORM/UnitOfWork.php at line 687  +
at UnitOfWork ->computeChangeSet (object(ClassMetadata), object(Budget))
in vendor/doctrine/orm/lib/Doctrine/ORM/UnitOfWork.php at line 404  +
at UnitOfWork ->computeScheduleInsertsChangeSets ()
in vendor/doctrine/orm/lib/Doctrine/ORM/UnitOfWork.php at line 711  +
at UnitOfWork ->computeChangeSets ()
in vendor/doctrine/orm/lib/Doctrine/ORM/UnitOfWork.php at line 297  +
at UnitOfWork ->commit (null)
in vendor/doctrine/orm/lib/Doctrine/ORM/EntityManager.php at line 340  +
at EntityManager ->flush ()
in src/CDG/PanelBundle/Controller/BudgetController.php at line 36  +
at BudgetController ->addAction (object(Request))
at call_user_func_array (array(object(BudgetController), 'addAction'),   array(object(Request)))
in app/bootstrap.php.cache at line 3109  +
at HttpKernel ->handleRaw (object(Request), '1')
in app/bootstrap.php.cache at line 3071  +
at HttpKernel ->handle (object(Request), '1', true)
in app/bootstrap.php.cache at line 3222  +
at ContainerAwareHttpKernel ->handle (object(Request), '1', true)
in app/bootstrap.php.cache at line 2444  +
at Kernel ->handle (object(Request))
in web/app_dev.php at line 28  +

Это ничего не значит для меня. Я не знаю что делать. Другие решения не помогли мне вообще. Если вам нужно больше кода, пожалуйста, спросите меня, и я отредактирую его. Спасибо.