Twig form_errors函数未在Validators.lang.yml中加载翻译消息

Question

I'm using Symfony2 translations in order to display error messages in my forms. My message is defined in validators.fr.yml located in the Ressources/translations subfolder of my bundle. I'm also using annotations to set the message to use.

The problem is that the message is not shown in my template. I only get the key that i've defined in my annotation.

A sample of code from my entity :

/**
 * Nom du site de travail.
 *
 * @var string le nom du site de travail.
 *
 * @ORM\Column(
 *      name   = "nom",
 *      type   = "string",
 *      length = 255
 * )
 *
 * @Assert\NotBlank(message = "structure.siteTravail.nom.notnull")
 */
private $nom;

In my form class, I've implemented the getDefaultOptions method with the data_class option (don't really know if it helps) :

public function getDefaultOptions(array $options)
{
    return array(
        'data_class' => 'My\FreakingBundle\Entity\SiteTravail'
    );
}

Here is the content of validators.fr.yml :

structure:
    siteTravail:
        nom:
            notnull: Le nom est obligatoire.

In my Twig template I'm using this code to render the field's errors :

{{ form_errors(form.nom) }}

Also, translation is activated in app/config/config.yml :

framework:
    translator: { fallback: fr }

All my translations are working perfectly in messages.fr.yml for this bundle and I've got another bundle using both messages.fr.yml and validators.fr.yml as well.

The weirdest part is that when I put the content of validators.fr.yml in my other bundle, it works.

Answer 1

You can force the translation overriding the field_errors form block.

So, when you render the form in your twig template:

{% form_theme form _self %}

{% block field_errors %}
{% spaceless %}
    {% if errors|length > 0 %}
        <ul>
            {% for error in errors %}
                <li>{{ error.messageTemplate|trans(error.messageParameters, 'validators')|trans }}</li>
            {% endfor %}
        </ul>
    {% endif %}
{% endspaceless %}
{% endblock %}

{% block content %}
    {# ... other stuffs ... #}
        {{ form_widget(form) }}
    {# ... other stuffs ... #}
{% endblock %}

If you put the translations in a specific domain file (for example: "validators.lang.yml") use this syntax:

<li>{{ error.messageTemplate|trans(error.messageParameters, 'validators')|trans({}, 'validators') }}</li>

Here you can find all the default form blocks for custom replacements purposes: https://github.com/symfony/symfony/blob/master/src/Symfony/Bridge/Twig/Resources/views/Form/form_div_layout.html.twig