Symfony constraint validation not working, groups ignored

Question

Ive tried creating my validator but it does not work. Documentation does not help because it only cares for object validation and has one example for array validation.

Im trying to validate my data based on fields sent with the data. So im having a field type in the request which is either credentials, google or facebook and depending on this fields value the other fields should be validated. Of course the type has to be validated first.

What I tried was following the documentation for collections but I only get unexpected Exceptions and results. Sometimes errors, sometimes dont, the thing just does not work as expected.

Given the following example:

use Symfony\Component\Validator\Constraints as Assert;
use Symfony\Component\Validator\Validation;

require_once(__DIR__ . "/../vendor/autoload.php");

$validator = Validation::createValidator();

$constraints = new Assert\Collection([
    "type" => [
        new Assert\Required([
            "groups" => ["type"],
            "constraints" => new Assert\Choice([
                "choices" => ["credentials", "facebook", "google"],
            ])
        ]),
    ],
    "username" => [
        new Assert\NotBlank([
            "groups" => ["credentials", "facebook", "google"]
        ])
    ],
    "password" => [
        new Assert\NotBlank([
            "groups" => ["credentials"]
        ]),
        new Assert\Length([
            "min" => 6,
            "groups" => ["credentials"]
        ]),
    ],
    "passwordConfirm" => [
        new Assert\NotBlank([
            "groups" => ["credentials"],
        ]),
        new Assert\IdenticalTo([
            "groups" => ["credentials"],
            "propertyPath" => "password"
        ])
    ]
]);

$data = [];

$errors = $validator->validate($data, $constraints, "credentials");


foreach ($errors as $error) {
    echo $error->getPropertyPath() . ": " . $error->getMessage() . "<br />";
}

Will output:

[type]: This field is missing.
[username]: This field is missing.
[password]: This field is missing.
[passwordConfirm]: This field is missing.

Even though I have explicitly passed "credentials" to groups. Ive also tried using the fields option but it introducec more problems. Does anyone know how to use the validator properly and use groups to actually only validate subsets of data.

Inmarelibero Inmarelibero · Accepted Answer · 2019-02-19T13:15:41

why are you using Assert\Collection? that's useful to validate an array of similar objects/items

I think you should just substitute: $constraints = new Assert\Collection([ with $constraints = [, as to say you should use a plain array of constraints

Symfony constraint validation not working, groups ignored

1 Answers