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POModel validation Symfony2
 

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  1. POModel validation Symfony2
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    <p>I have read how to validate forms in server side with sf2. The solution is by using the Constraints in the Entity as annotations, validation.yml or inside the EntityType (Form).</p> <p>Everything is fine, however, all of these validations work just with the form. But when you instance a new object and try to persist, validation doesn't work.</p> <p>I will give you an example. </p> <p>Imagine I have a user entity:</p> <pre><code>/** * @ORM\Entity * @ORM\Table(name="sf_user") */ class User{ /** * @ORM\Id * @ORM\Column(type="integer") * @ORM\GeneratedValue(strategy="AUTO") */ protected $id; /** * @var string * @ORM\Column( name="username", type="string", length=50, unique=true ) */ protected $username; /** * @var string * @ORM\Column( name="email", type="string", length=100, unique=true ) */ protected $email; public static function loadValidatorMetadata(\Symfony\Component\Validator\Mapping\ClassMetadata $metadata) { $metadata-&gt;addPropertyConstraint('username', new \Symfony\Component\Validator\Constraints\NotBlank()); $metadata-&gt;addPropertyConstraint('email', new \Symfony\Component\Validator\Constraints\NotNull()); } } </code></pre> <p>Then, in some controller I try to save my form with:</p> <pre><code>$this-&gt;form = $this-&gt;create(new UserType()); $this-&gt;form-&gt;setData(new User()); $this-&gt;form-&gt;bind($this-&gt;request); if( $this-&gt;form-&gt;isValid()) { //Persist with entity manager } </code></pre> <p>Everything works perfectly because I have an association between my Entity and my form. But what happen if i need to instance an object without a form?. I should do something like this:</p> <pre><code>$user = new User(); $user-&gt;setUsername("username"); //Persist with entity manager </code></pre> <p>If I do that, entity is not validated and DB throws an error because the field "email" is required.</p> <p>Should I always associate my entity with the form to validate? If that is the case, I don't agree at all because if I am working with web services, I don't wanna create a form just to validate on the server side.</p> <p>So, how could I do this validation?. Thanks for your help.</p>
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    1. COIndeed, if you create a wevbservice you work with forms too. Serialization and deserialization is magically easy with forms. See FOSRestBundle.
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      1. USEmii Khaos
 

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