在哪里可以找到有关如何开发（rails 3）帮助器的文档 [英] where to find documentation on how to develop (rails 3) helpers

问题描述

我可能是盲人的，但我找不到任何关于如何在rails 3中为自己的意见编写帮助者的好的文档。
我正在寻找的答案是：

我有一个局部视图（说shared / _error_messages.html），它的帮助应该在哪里去，我该怎么命名，哪些约定？
如何将局部变量从视图传递给助手，反之亦然？

是的，我们从基础知道...
提前感谢

解决方案

将方法从_error_messages.html.erb提取为helpers / application_helper.html.erb，这是一个全局帮助者，这意味着整个项目中可用的方法。

您可以将其作为部分留下，并将其加载到

 <％= render：partial => shared / error_messages％> 
  

。

I may be blind but I can't really find any good documentation on how to write helpers for your own views in rails 3. The kind of answers I'm looking for is:

I have a partial view (say shared/_error_messages.html), where should its helper go, how should I name it, which are the conventions? How to pass local variables from the view to the helper and vice-versa?

Yeap, so let's say from the basics... Thanks in advance

解决方案

Extract the method from _error_messages.html.erb to helpers/application_helper.html.erb, this is a global helper, which means the methods there are available in the whole project.

You could leave it as a partial and load it with

<%= render :partial => "shared/error_messages" %> 

as well.

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