Symfony2 Validation with conditions

Question

It looks like symfony tries to help you out a lot with Validation but I am a bit confused. I have an Address object that looks like this

/**
 * @ORM\Entity
 * @ORM\Table(name="address")
 */
class Address {
    /**
     * @ORM\Id
     * @ORM\Column(type="integer")
     * @ORM\GeneratedValue
     * @var int $id
     */
    private $id;

    /**
     * @ORM\Column(name="street1", type="string", nullable=true)
     * @var string $street1
     */
    private $street1;

    /**
     * @ORM\Column(name="street2", type="string", nullable=true)
     * @var string $street2
     */
    private $street2;

    /**
     * @ORM\Column(name="street3", type="string", nullable=true)
     * @var string $street3
     */
    private $street3;

    /**
     * @ORM\Column(name="city", type="string", nullable=true)
     * @var string $city
     */
    private $city;

    /**
     * @ORM\Column(name="state", type="string", nullable=true)
     * @var string $state
     */
    private $state;

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

    /**
     * @var AddressType
     * This is only used for previous addresses
     * @DoctrineAssert\Enum(entity="RLD\AppBundle\DBAL\AddressType")
     * @ORM\Column(name="address_type", type="AddressType", nullable=true)
     */
    private $addressType;
}

I am using this object twice. Once for Current address and another time for previous address. The problem is I only need the info for previous address if the user hasn't been in the current address for more than 5 years. I suspect I am going to need to extend the class in order to get what I want working. However even after extending I am not sure how to make conditional validation.

The Question

How do you make conditional validation?

if(currentAddress < 5)
    validate previous address;

Anyone have ideas for this? This form seems to carry a common theme across it that needs this functionality. Any help/suggestions would be appreciated.

How you can do the year control? Where is the field with the date? Usually i implements this kind of conditional validation with a Callback validator in conjunction with Validation Groups. Let me know if you need an example about it — Matteo
– Matteo, Commented Mar 23, 2015 at 8:13
@Matteo So can I use the Validation Group inside the Callback validator. I have been looking at the callback and I think its what I need the only thing I don't know is how to tell it to use a specific set of validation parameters and Groups does seem to do that job. I just cant figure out how to use them together. — B Rad
– B Rad, Commented Mar 23, 2015 at 15:21

Matteo · Accepted Answer · 2015-03-23 15:52:34Z

You can use the validation group for activate selectively the validation callback. As Example:

Address Entity

/**
 *
 * @Assert\Callback(methods={"validateCurrentAddress"}, groups={"currentAddress"})
 * @Assert\Callback(methods={"validatePreviousAddress"}, groups={"previousAddress"})
 */
class Address
{

    ....

        public function validatePreviousAddress(ExecutionContextInterface $context)
    {
        if (/* is not valid */)
        {
            $context->addViolationAt('/*your field*/','error.previous_address_invalid');
        }

    }

}

CurrentAddressFormType

class CurrentAddressFormType extends AbstractType
{

    public function setDefaultOptions(OptionsResolverInterface $resolver)
    {
        $resolver->setDefaults(array(
            'data_class'=> 'Acme\DemoBundle\Entity\Address',
            'validation_groups' => array('currentAddress')
        ));
    }
}

PreviousAddressFormType

class PreviousAddressFormType extends AbstractType
{

    public function setDefaultOptions(OptionsResolverInterface $resolver)
    {
        $resolver->setDefaults(array(
            'data_class'=> 'Acme\DemoBundle\Entity\Address',
            'validation_groups' => array('previousAddress')
        ));
    }

Hope this help

thorben.t · Accepted Answer · 2015-03-22 19:47:15Z

1

What about using Traits?

http://php.net/manual/de/language.oop5.traits.php

Define a trait for your default attributes and then create 2 classes:

Class Address
Class PreviousAddress

The class PreviousAddress has the addiotional attribute.

You can then validate via instanceof:

if ($object instanceof PreviousAddress) {
    // has type
}

answered Mar 22, 2015 at 19:47

thorben.t

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3 Comments

B Rad Over a year ago

I am not very familiar with Traits however I would rather use the framework if possible. It seems like there would be a lot of overhead to get what you are talking about working in all the instances needed in this project. However this seems like a reasonable option to fall back on. Thank you!

thorben.t Over a year ago

You can also extend the class using Inheritance Strategies. But also you have to use instanceof

B Rad Over a year ago

I am looking at Callbacks to accomplish this and then maybe using yml so I don't need to extend a class just for validation.

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