简单的领域在Rails中(Simple Fields in Rails)

简单的领域在Rails中(Simple Fields in Rails)

我在Person模型的show.html.erb中写了这行show.html.erb 。

<%= f.simple_fields_for :holidays do |holiday| %> <%= holiday.input :number, :label => holiday.day.name, :input_html=>{ :required => false } %>

我有两个问题：

1.假期在这里意味着什么。 我的意思是它包含什么？

:label => holiday.day.name行给出错误=> undefined method day 。

有一个连接表holidays ，其中包含（ person_id, day_id, number) 。

I have written this line in my show.html.erb of Person model.

<%= f.simple_fields_for :holidays do |holiday| %> <%= holiday.input :number, :label => holiday.day.name, :input_html=>{ :required => false } %>

I have two questions :

1. What does holiday mean here. I mean what does it contain?

2. :label => holiday.day.name line gives an error => undefined method day.

There is a join table holidays which contains (person_id, day_id, number).

最满意答案

holiday是表单生成器对象。

要获取包装在表单构建器对象中的对象，您需要调用其上的object方法。 以下将工作。

holiday.object.day.name

holiday is form builder object.

To get the object which is wrapped inside a form builder object, you need to call the object method on it. The below will work.

holiday.object.day.name