在从 Symfony2 Validator 生成的 Twig 中获取特定的错误消息 [英] Getting specific error message in Twig that was generated from Symfony2 Validator

问题描述

我将 $errors 传递给 Twig，由此生成:

I'm passing $errors to Twig, generated from this:

$insert = new MyEntity();
$insert->setTest1( 'testtesttest' );
$validator = $this->get('validator');
$errors = $validator->validate($insert);

...我如何获得一个特定的错误值，如果它有效的话，就像这样?

...how do I get a specific error value, something like this if it worked?

{{ errors('field1') }}

...它应该只返回错误消息，例如这不是一个有效的电子邮件地址"等

...which should just return the error message, e.g. "That is not a valid email address" etc.

我知道我可以循环获取所有这些:

I know I can loop through to get all of them:

{% for err in errors %}
    {{ err.label }}: {{ err.value }}<br />
{% endfor %}

...但我只想要一个特定的

...but I just want one specific one

推荐答案

您不能直接访问验证错误对象数组的字段名.你必须通过循环来搜索它.

You cant just access the fieldname of an array of validation-error objects directly. You have to search it by looping.

{% for error in errors %}
   {% if error.propertyPath = 'fieldname' %}
      {{ error.propertyPath }}: {{ error.message }}
   {% endif %}
{% endfor %}

但也许你最好只使用...

But maybe you're better off just using ...

$errors = $validator->validateProperty($insert, 'fieldname);

... 在您的控制器中，并将一个属性的错误列表传递到您的模板中.

... in your controller and just passing the list of errors for the one property into your template.

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