如何根据另一个字段值有条件地要求 Yii2 SettingsForm 模型中的字段？

Question

我在我的 Yii Web 应用程序中使用来自 Dektrium 的 SettingsForm 模型进行用户配置文件设置。在此模型中，每当用户想要更新其个人资料时，都需要输入当前密码 (current_password)。但是，我只想在用户打算更改密码时才需要 current_password （在“new_password”字段中插入新值；否则，对于其他配置文件更改来说不应该是强制的。 如何在不更改库模型SettingsForm的情况下实现这一目标？

这是我的代码相关部分的片段：

 /**
     * SettingsForm gets user's username, email and password and changes them.
     *
     * @property User $user
     *
     * @author Dmitry Erofeev <[email protected]>
     */
    class SettingsForm extends Model
    {
       /** @var string */
    public $new_password;

    /** @var string */
    public $current_password;

    /** @inheritdoc */
    public function rules()
    {
        return [
            'newPasswordLength' => ['new_password', 'string', 'max' => 72, 'min' => 6],
            'currentPasswordRequired' => ['current_password', 'required'],
            'currentPasswordValidate' => ['current_password', function ($attr) {
                if (!Password::validate($this->$attr, $this->user->password_hash)) {
                    $this->addError($attr, Yii::t('user', 'Current password is not valid'));
                }
            }],
        ];
    }

这是控制器中的操作

public function actionAccount()
{
    /** @var SettingsForm $model */
    $model = \Yii::createObject(SettingsForm::className());
    $profile = Profile::find()->where(['user_id' => Yii::$app->user->identity->getId()])->one();
    $event = $this->getFormEvent($model);

    $this->performAjaxValidation($model);

    $old_attachs = [];
    $files_preview = [];
    if ($profile->gravatar_id) {
        $old_attachs = $profile->getImageUrl();
        $files_preview = $profile->getImagePreview();
    }

    $this->trigger(self::EVENT_BEFORE_ACCOUNT_UPDATE, $event);
    if ($model->load(\Yii::$app->request->post()) && $model->save()) {
        \Yii::$app->session->setFlash('success', \Yii::t('user', 'Your account details have been updated'));
        $this->trigger(self::EVENT_AFTER_ACCOUNT_UPDATE, $event);
        if ($profile->load(\Yii::$app->request->post())) $profile->save();
        $profile->avatarFile = UploadedFile::getInstance($profile, 'avatarFile');
        $profile->upload();

        return $this->refresh();
    }

    return $this->render('@app/views/my-settings/account', [
        'model' => $model,
        'profile' => $profile,
        'old_attachs' => $old_attachs,
        'files_preview' => $files_preview,
    ]);
}

最后视图内的字段是

<?php echo $form->field($model, 'new_password')->passwordInput() ?>

<?php echo $form->field($model, 'current_password')->passwordInput() ?>

Answer 1

可以使用条件验证来制作Yii 文档：

['old_password', 'required', 'when' => function($model) {
    return $model->new_password != '';
}]