强行“人性化” Rails 3 中字段名称要小写

发布于 2024-10-14 18:57:49 字数 378 浏览 1 评论 0原文

据我所知，在 Rails 3 中设置字段的“人性化”名称的公认方法是使用语言环境：

# config/locales/en.yml
en:
  activerecord:
    attributes:
      member:
        username: 'username' # rather than 'Username'

但是，我只是希望 Rails 3 使用其默认人性化名称的小写版本。有没有一种简单的内置方法可以做到这一点？

一个有助于澄清的示例：在 form_for 内部时，<%= f.label :username %> 默认显示“用户名”。我希望它显示“用户名”。

原文

As far as I know, the accepted way to set the "humanized" names of fields in Rails 3 is to use locales:

# config/locales/en.yml
en:
  activerecord:
    attributes:
      member:
        username: 'username' # rather than 'Username'

However, I simply want Rails 3 to use lowercase versions of its default humanized names. Is there an easy, built-in way to do this?

An example to help clarify: When inside of a form_for, <%= f.label :username %> displays "Username" by default. I want it to display "username".

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冷…雨湿花 2024-10-21 18:57:49

我也有同样的问题。
我通过 css 解决了它：

In foo.html.erb:

<%= f.label :username, :class => "my_class" %>

In bar.css:

label.my_class {
    text-transform:   lowercase;
}

我也更喜欢不同的解决方案。但到目前为止，这是我唯一能找到的。

I had the same problem.
I solved it via css:

In foo.html.erb:

<%= f.label :username, :class => "my_class" %>

In bar.css:

label.my_class {
    text-transform:   lowercase;
}

I would prefer a different solution, too. But that's the only one I've been able to find, so far.

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是伱的 2024-10-21 18:57:49

label 帮助器默认使用 human_attribute_name< /a> 将属性转换为人名。如果您查看源代码，human_attribute_name 会尝试一些操作，然后再返回到attributes.to_s. humanize 。它首先尝试翻译，然后在选项哈希中查找 :default 选项。

因此，获得所需功能的最简单/最好的方法是用您自己的提供 :default 选项覆盖 human_attribute_name ，然后调用原始选项。 Rails 提供了一种合理的方法来使用 alias_method_chain 完成此类操作，所以...

我已经听够了，只需给我答案即可！

将以下内容放入 config/initializers 中的任意文件中，然后重新启动您的应用：

module ActiveModel
  module Translation
    def human_attribute_name_with_foo attribute, options = {}
      human_attribute_name_without_foo attribute, options.merge( :default => attribute.humanize.downcase )
    end

    alias_method_chain :human_attribute_name, :foo
  end
end

The label helper defaults to using human_attribute_name to turn an attribute into a human name. If you look at the source, human_attribute_name tries a few things before falling back to attributes.to_s.humanize. It tries the translation first, and then it looks for a :default option in the options hash.

So, the simplest/best way to get the functionality you want is to override human_attribute_name with your own that provides a :default option and then calls the original. Rails provides a reasonable way to do this sort of thing with alias_method_chain, so...

I've heard enough, just give me the answer!

Put the following in any file in config/initializers and restart your app:

module ActiveModel
  module Translation
    def human_attribute_name_with_foo attribute, options = {}
      human_attribute_name_without_foo attribute, options.merge( :default => attribute.humanize.downcase )
    end

    alias_method_chain :human_attribute_name, :foo
  end
end

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