Optional embed form in Symfony 2

Question

I have two entities in my system: Person and Phone as the following code.

class Person
{
    /**
     * @ORM\\Id
     * @ORM\\Colum         


        

Answer 1

Do this:

First on your phone entity, declare the fields as "nullable" like this:

/**
 * @ORM\Column(type="integer", nullable=true)
 */
private $countryCode;

This will allow these fields to have a null value.

Then you need to declare a validator that will check if either none of the fields or all of them are filled

class Phone {

...
/**
 * @Assert\True(message = "Phone must be empty of fill all fields")
 */
public function isPhoneOK()
{
    // check if no field is null or all of them are
    // return false if these conditions are not met
}