php - Symfony FormBuilder - 附加元素的自定义选项？

Question

我最近才开始使用 Symfony (Symfony3)，并且正在将我的旧网站转换为使用 Symfony。目前，在我的表单元素中，我添加了一个验证错误消息元素，以及一个帮助/信息元素(一个在点击时显示文本的信息符号)。

<div id="info-username" class="additional-info">
    <p>Your username will be used as a way of <em>uniquely</em> identifying you when you log into your account. You can still log in using your email address in case you forget your username.</p>
    <p>It must be between 2-25 characters long and start with a letter. The following characters are permitted: letter, number, dot, underscore, dash.</p>
</div>

Symfony 按照标准处理验证错误消息元素，但我看不到轻松添加额外信息文本的方法。理想情况下，我希望这是一个额外的选项，然后我可以将其传递给 FormBuilder 的“添加”方法。例如

->add('username', TextType::class, array(
    'info' => '<p>Your username will be used as a way of <em>uniquely</em> identifying you when you log into your account. You can still log in using your email address in case you forget your username.</p>
<p>It must be between 2-25 characters long and start with a letter. The following characters are permitted: letter, number, dot, underscore, dash.</p>'
)

这可能吗？而不是直接将它添加到我的 Twig 模板中。

Answer 1

尝试以下操作:

->add('username', TextType::class, array(
    'help' => '<p>Your username will be used as a way of <em>uniquely</em> identifying you when you log into your account. You can still log in using your email address in case you forget your username.</p>
<p>It must be between 2-25 characters long and start with a letter. The following characters are permitted: letter, number, dot, underscore, dash.</p>'
)

如果它不适用于此字段类型，请查看 the following form extension