PHP ValidatorGroup

Validator group for validating form and json body data.

Usage

Validation Group

Create a class and extend \District5\ValidatorGroup\Group, adding fields to be validated against.

/**
 * Creates a new instance of AuthValidationGroup
 */
public function __construct()
{
    $stringTrim = new StringTrim();

    $this->addField('username', [new StringLength(['min' => 4, 'max' => 254])], [$stringTrim], true);
    $this->addField('password', [new StringLength(['min' => 6, 'max' => 64])], [$stringTrim], true);
    $this->addField('device_id', [new StringLength(['min' => 6, 'max' => 64])], [], true);
}

Validating

This can then be used in a route, with a handler, for example with the following code:

$request = $app->request();

$vg = new \Project\Validate\Group\AuthAuthValidationGroup();

The validation group can be used to validate against any custom data with the correct handler; the library as a default ships with a JSON handler:

$handler = new \District5\ValidatorGroup\Handler\JSON($request->getBody());
$valid = $vg->isValid($handler);

Custom Handlers

You can create your own handlers by implementing the \District5\ValidationGroup\Handler\HandlerInterface and passing this into the ValidationGroup.

Errors

If validation failed, the validation group will give you some hint as to why it failed by calling:

$vg->getLastErrorMessage();