在CakePHP 2.x中为hasMany关联显示验证错误的最简单的方法是什么？ [英] What is the simplest way to display validation errors for hasMany associations in CakePHP 2.x?

问题描述

在CakePHP 2.x中使用Model :: saveAssociated（）显示hasMany关联的验证错误的最简单方法是什么？

这里是CakePHP厨师书。
（ http://book.cakephp.org/2.0/en/models/saving-your-data.html#saving-related-model-data-hasone-hasmany-belongsto ）

  echo $ this-> Form-> create（'Company'，array（'action'=>'add'）） 
 echo $ this-> Form-> input（'Company.name'，array（'label'=>'Company name'））; 
 echo $ this-> Form-> input（'Company.description'）; 
 echo $ this-> Form-> input（'Company.location'）; 
 
 echo $ this-> Form-> input（'Account.0.name'，array（'label'=>'Account name'））; 
 echo $ this-> Form-> input（'Account.0.username'）; 
 echo $ this-> Form-> input（'Account.0.email'）; 
 
 echo $ this-> Form-> end（'Add'）; 
  

验证时，例如，Account.0.email失败，自动无效。虽然错误列在$ this-> Company-> Account-> validationErrors。

有没有办法自动使相应的字段无效并显示相应的验证错误？

解决方案

这不是100％自动化，但有一些你可以放在一起的CakePHP提供。

首先，我假设你使用的是最新的2.4

我提供的解决方案有两部分：

a）您在控制器级别验证数据

b）您在View级别的FormHelper确定错误消息。 / p>

对于a）

您可以参考此链接 http://book.cakephp.org /2.0/en/models/data-validation/validating-data-from-the-controller.html#validating-data-from-the-controller

根据该链接，我建议两种方式。

1）您可以单独验证每个模型数据。

  if（$ this-> Company-> validates（array（'fieldList' array（'name'，'location'）））{
 // valid 
} else {
 // invalid 
} 
  

，然后执行

  if $ this-> Account-> validates（array（'fieldList'=> array（'email'））））{
 // valid 
} else {
 // invalid 
} 
  

因为你使用hasMany，所以有可能需要验证每个不同的帐户数据集。

因此，您可能使用循环，因此您可以使用和引用

如果你在一个循环中进行验证，并且想要单独的错误集合
不使用invalidFields（）。而是使用validates（）并访问
validationErrors模型属性。

2）第二种方法是使用

  if（$ this-> Company-> saveAll（$ this-> request-> data，array（'validate' =>'only'）））{
 //验证
} else {
 //不验证
} 
  

你可以在我给的链接的底部找到这个。

）在FormHelper上显示错误。

您可以阅读 http://book.cakephp.org/2.0/en/core-libraries/helpers/form.html#FormHelper::error

What is the simplest way to display validation errors for hasMany associations using Model::saveAssociated() in CakePHP 2.x?

Here is an example from the CakePHP cook book. (http://book.cakephp.org/2.0/en/models/saving-your-data.html#saving-related-model-data-hasone-hasmany-belongsto)

echo $this->Form->create('Company', array('action' => 'add'));
echo $this->Form->input('Company.name', array('label' => 'Company name'));
echo $this->Form->input('Company.description');
echo $this->Form->input('Company.location');

echo $this->Form->input('Account.0.name', array('label' => 'Account name'));
echo $this->Form->input('Account.0.username');
echo $this->Form->input('Account.0.email');

echo $this->Form->end('Add');

When validation, for example, for Account.0.email fails the form field doesn't appear to be automatically invalidated. Although the error is listed in $this->Company->Account->validationErrors.

Is there a way to automatically invalidate the appropriate field and display the corresponding validation error?

解决方案

It is not 100% automated but there are things you can put together that CakePHP provides.

First of all, I am assuming you are using the latest 2.4

The solution I provide has 2 parts:

a) you validate the data at the controller level

b) you determine the error message at the FormHelper in the View level.

For part a)

you can reference this link http://book.cakephp.org/2.0/en/models/data-validation/validating-data-from-the-controller.html#validating-data-from-the-controller

Based on that link, I suggest 2 ways.

1) you can individually validate each model data.

Example,

if ($this->Company->validates(array('fieldList' => array('name', 'location')))) {
    // valid
} else {
    // invalid
}

and then you do a

if ($this->Account->validates(array('fieldList' => array('email')))) {
    // valid
} else {
    // invalid
}

Because you use a hasMany so there is a chance you may need to validate each different set of Account data separately.

Therefore you are likely to use a loop, so you can use and I quote,

if you are validating in a loop and want each set of errors separately don’t use invalidFields(). Instead use validates() and access the validationErrors model property.

2) second way is to use this

if ($this->Company->saveAll($this->request->data, array('validate' => 'only'))) {
  // validates
} else {
  // does not validate
}

You can find this at the bottom of the link I gave.

Now as for part b) displaying errors at the FormHelper.

You can read http://book.cakephp.org/2.0/en/core-libraries/helpers/form.html#FormHelper::error

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