Yii Form Model

The package provides a base for form models and helps to fill them with data, validate them and display them.

Requirements

• PHP 8.1 or higher.
• mbstring PHP extension.

Installation

The package could be installed with Composer:

composer require yiisoft/form-model

General usage

Define a form model:

use Yiisoft\FormModel\Attribute\Safe;
use Yiisoft\FormModel\FormModel;
use Yiisoft\Validator\Rule\Email;
use Yiisoft\Validator\Rule\Length;
use Yiisoft\Validator\Rule\Required;

final class LoginForm extends FormModel
{
    #[Label('Your login')]
    #[Required]
    #[Length(min: 4, max: 40, skipOnEmpty: true)]
    #[Email(skipOnEmpty: true)]
    private ?string $login = null;

    #[Label('Your password')]
    #[Required]
    #[Length(min: 8, skipOnEmpty: true)]
    private ?string $password = null;

    #[Label('Remember me for 1 week')]
    #[Safe]
    private bool $rememberMe = false;
}

Fill it with data and validate using form hydrator:

use Psr\Http\Message\RequestInterface;
use Yiisoft\FormModel\FormHydrator;
use Yiisoft\FormModel\FormModel;

final class AuthController 
{
    public function login(RequestInterface $request, FormHydrator $formHydrator): ResponseInterface
    {
        $formModel = new LoginForm();
        $errors = [];
        if ($formHydrator->populateFromPostAndValidate($formModel, $request)) {
            $errors = $formModel->getValidationResult()->getErrorMessagesIndexedByProperty();
        }
        
        // You can pass $formModel and $errors to the view now.
    }
}

Display it using fields in the view:

use Yiisoft\FormModel\Field;
use Yiisoft\FormModel\FormModel;

echo Field::text($formModel, 'login');
echo Field::password($formModel, 'password');
echo Field::checkbox($formModel, 'rememberMe');

// ...

Documentation

• Guide
• Internals

If you need help or have a question, the Yii Forum is a good place for that. You may also check out other Yii Community Resources.

License

The Yii Form Model is free software. It is released under the terms of the BSD License. Please see LICENSE for more information.

Maintained by Yii Software.

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