在collect_select上使用大写 [英] using capitalize on a collection_select

问题描述

如果在我找不到之前已回答。

If this has been answered before I cannot find it.

我有以下：

= f.collection_select :sex_id, @sexes, :id, :name

并在控制器中：

@sexes = Sex.all

性别都以小写形式存储，如下所示：

the sexes are all stored in lowercase, like this:

id|name
 1|steer
 2|heifer
 3|holstein

我需要他们输出与首字母字母：

I need them to output with Capital First letters:

Steer
Heifer
Holstein

我试过：

= f.collection_select :sex_id, @sexes, :id, :name.capitalize
= f.collection_select :sex_id, @sexes, 'id', 'name'.capitalize

但他们不工作，我真的不希望他们，但必须尝试他们发布之前。

but they do not work, and I didn't really expect them to, but had to try them before posting this.

推荐答案

collection_select 在每个对象上调用一个方法，选项值。您可以在模型中添加一个新方法以获得正确的值：

collection_select calls a method on each object to get the text for the option value. You can add a new method in the model to get the right value:

def name_for_select
  name.capitalize
end

然后在视图中：

= f.collection_select :sex_id, @sexes, :id, :name_for_select

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