Adding Registration Form Fields in Yii2

Step 1: Update the Database

Add the new columns first_name and last_name to the users table in your database.

Step 2: Update the Signup Form Model

In frontend/models/SignupForm.php, add the new fields to the rules section to make them required:

public function rules()
{
    return [
        ['first_name', 'required'],
        ['last_name', 'required'],
        // other rules
    ];
}

Step 3: Update the Signup Function

Modify the signup function to include the new fields:

public function signup()
{
    if ($this->validate()) {
        $user = new User();
        $user->first_name = $this->first_name;
        $user->last_name = $this->last_name;
        // other assignments and save logic
    }
}

Step 4: Update the Signup View

In frontend/views/site/signup.php, add the new fields to the registration form:

<?= $form->field($model, 'first_name')->textInput(['autofocus' => true]) ?>
<?= $form->field($model, 'last_name')->textInput(['autofocus' => true]) ?>

By following these steps, you will successfully add the first_name and last_name fields to the registration form in your Yii2 application.