使用 CakePHP 3 验证检查是否设置了至少一个字段

Question

我正在尝试在 CakePHP 3 中编写一个验证规则来检查是否设置了前名和姓氏或公司名称。

验证器：

$validator
    ->add('prename', 'custom', [
        'rule' => [$this, 'validateName'],
        'message' => __('Prename and lastname OR company name must be set.')
    ]);

$validator
    ->add('lastname', 'custom', [
        'rule' => [$this, 'validateName'],
        'message' => __('Prename and lastname OR company name must be set.')
    ]);

$validator
    ->add('name', 'custom', [
        'rule' => [$this, 'validateName'],
        'message' => __('Prename and lastname OR company name must be set.')
    ]);

规则定义：

public function validateName($check, array $context)
{
    if((!empty($context['data']['prename']) && !empty($context['data']['lastname'])) || !empty($context['data']['name'])){
        return true;
    } else {
        return false;
    }
}

但验证的行为与预期不符。如果我输入公司名称，我会收到 prename 和 lastname 的验证错误，表明这些字段是必需的。当我输入前名和姓氏时，它说公司名称是必需的。

我做错了什么？

Answer 1

我在 cakePhp 3.x 中也遇到过这种奇怪的行为。我设法解决了这个问题。

下面是解决问题的代码

    $validator
        ->notEmpty('company_name', 'Prename and lastname OR company name must be set.', function ($context){      
            if((!empty($context['data']['prename']) && !empty($context['data']['lastname'])) || !empty($context['data']['name'])){

                return false;
            } else {
                return true;
            }
        });

    $validator
        ->notEmpty('prename', 'Prename and lastname OR company name must be set.', function ($context){
            if((!empty($context['data']['prename']) && !empty($context['data']['lastname'])) || !empty($context['data']['name'])){

                return false;
            } else {
                return true;
            }
        });
    $validator
        ->notEmpty('lastname', 'Prename and lastname OR company name must be set.', function ($context){
           if((!empty($context['data']['prename']) && !empty($context['data']['lastname'])) || !empty($context['data']['name'])){
                return false;
            } else {

                return true;
            }
        });

我希望这将是您的问题的解决方案。

Answer 2

提供的答案都没有 100% 有效，所以我将发布我想出的答案。我正在使用 conditional validation，如 CakePHP 3 文档中所述。

CustomersTable.php：

public function validationDefault(Validator $validator)
{
    $validator->notEmpty('name', __("Required when prename and lastname is empty."), function ($context) {
        return !$context['data']['prename'] && !$context['data']['lastname'];
    });

    $validator->notEmpty('prename', __('Required when company or lastname is empty.'), function ($context) {
        return !$context['data']['name'];
    });

    $validator->notEmpty('lastname', __('Required if company or prename is empty.'), function ($context) {
        return !$context['data']['name'];
    });

    return $validator;
}

这种方法可以在提交数据时正确验证数据。但是，一些浏览器表示必须填写这些字段，因为它们是必需的。为了避免这种情况，我们必须将字段定义为required => false：

add.ctp 查看文件：

echo $this->Form->input('prename', [
   'label' => ['text' => __('Prename (*): ')],
   'required' => false,
]);

echo $this->Form->input('lastname', [
   'label' => ['text' => __('Lastname (*): ')],
   'required' => false,
]);

echo $this->Form->input('name', [
   'label' => ['text' => __('Company name (*): ')],
   'required' => false,
]);

Answer 3

我们在生产环境中运行以下代码，与您的非常相似：

$validator
    ->add('various_fee_text', 'custom', [
        'rule' => [$this, 'variousFieldsChecker'],
        'message' => __('Udfyld både Tekst og DKK feltet'),
    ])
    ->allowEmpty('various_fee_text');

有效性规则：

/**
 * Method checks whether or not various fee text and various fee prices are either both empty, both set or "dirt",
 * meaning only one of them is set and the other is empty. We want either both to be set or both to be empty.
 *
 * @return bool depending on it's OK or not
 */
public function variousFieldsChecker($value, $context)
{
    $varioustext = $context['data']['various_fee_text'];
    $variousPrice = $context['data']['various_fee_price'];

    if (!empty($varioustext) && !empty($variousPrice)) {
        return true;
    } elseif ((empty($varioustext) && empty($variousPrice))) {
        return true;
    }

    return false;
}

我认为您需要像之前建议的那样附加->allowEmpty()。

Answer 4

为此 CakePhp 提供创建自定义验证。您需要在模型类上创建两个验证函数，并在控制器函数上有条件地调用它们。您可以创建验证函数，如

    public function validationName($validator){

       $validator
       ->requirePresence('prename')
       ->notEmpty('prename', 'Prename must be set.')

       ->requirePresence('lastname')
       ->notEmpty('lastname', 'Lastname must be set.')

       ->allowEmpty('name');

       return $validator;
   }



public function validationCompany($validator){

       $validator
       ->requirePresence('name')
       ->notEmpty('name', 'Company name must be set.')

       ->allowEmpty('prename')
       ->allowEmpty('lastname');

       return $validator;
   }

在控制器上，您可以有条件地调用这些函数，如

$validator = 'company';
if(empty($this->request->data[''])){
  $validator = 'name';
}
$entity = $this->{$this->modelClass}->newEntity();
$entitydata = $this->{$this->modelClass}->patchEntity($entity, $this->request->data, ['validate' => $validator]);

$this->{$this->modelClass}->save($entitydata);