Question

我尝试在SignupForm

中注册时为用户分配一个角色（RBAC）

public function signup()
{
    if (!$this->validate()) {
        return null;
    }

    $user = new User();
    $user->username = $this->username;
    $user->email = $this->email;
    $user->role = $this->role;
    $user->setPassword($this->password);
    $user->generateAuthKey();

    return $user->save() ? $user : null;

    $myRole = '';

    switch ($user->role) {
        case 0:
            $myRole = 'developer';
            break;
        case 1:
            $myRole = 'project_manager';
            break;
        case 2:
            $myRole = 'customer';
            break;
    }

    $auth = Yii::$app->authManager;
    $role = $auth->getRole($myRole);
    $auth->assign($role, $user->id);

    return true;

}

查看注册

 <?= $form->field($model, 'role')->dropDownList(
                    [
                    '0' => 'Developer',
                    '1' => 'Project Manager',
                    '2' => 'Customer'
                    ],
                    ['prompt' => 'Choose your role..']) ?>

它不起作用...表auth_assignment不会更新，但表用户更新。如果我将这段代码插入到User.php中的AfterSave方法

中

$myRole = '';

    switch ($user->role) {
        case 0:
            $myRole = 'developer';
            break;
        case 1:
            $myRole = 'project_manager';
            break;
        case 2:
            $myRole = 'customer';
            break;
    }

    $auth = Yii::$app->authManager;
    $role = $auth->getRole($myRole);
    $auth->assign($role, $user->id);

工作正常...... 谁可以解释，为什么会这样？

Answer 1

此方法中间有return，因此return $user->save() ? $user : null;之后的所有内容都是死代码。

您可能需要将其替换为：

if (!$model->save()) {
    return null;
}

Answer 2

我认为这与此有很大关系

return $user->save() ? $user : null;

您在save（）方法之后返回用户或null，因此您之后编写的任何代码都不会实际执行。

如果您只想在保存成功后分配角色，您可以这样做：

if (!$this->validate()) {
        return null;
    }

    $user = new User();
    $user->username = $this->username;
    $user->email = $this->email;
    $user->role = $this->role;
    $user->setPassword($this->password);
    $user->generateAuthKey();

    if($user->save())
    {

      $myRole = '';

      switch ($user->role) {
          case 0:
              $myRole = 'developer';
              break;
          case 1:
              $myRole = 'project_manager';
              break;
          case 2:
              $myRole = 'customer';
              break;
      }

      $auth = Yii::$app->authManager;
      $role = $auth->getRole($myRole);
      $auth->assign($role, $user->id);

      return true;
    }
    else
      return false;

用户和RBAC中的后续方法

2 个答案: