如何设置一个变量从辅助方法包含在SASS SCSS样式表？ [英] How to set a variable from a helper method for inclusion in a SASS SCSS stylesheet?

问题描述

我有一个帮助方法来检索我需要进入SASS scss样式表的字符串。如果我在视图中调用该方法工作正常，但似乎sass是想要一个变量。似乎如果我试图在控制器中设置一个var，认为这是最初的正确方法，我不能看到var任何地方。

I have a helper method that retrieves a string that I need to get into a SASS scss stylesheet. If I call the method in the view it works fine, however it seems that sass is wanting a variable. It seems as though if I attempt to set a var in the controller, thinking that this would be the correct approach initially, I'm not able to see the var anywhere.

如果没有，

I initially thought you could simply call a helper method from SASS, but apparently that's not the case? If not,

可能你可以提供一个例子，在一个最初来自辅助方法的sass scss样式表中正确地获取变量。

推荐答案

将SASS文件重命名为 foobar.css.scss.erb 。然后通过将此行放在顶部，包含您需要的包含帮助方法的帮助程序模块：

Rename your SASS file to foobar.css.scss.erb. Then include the helper module you need that contains the helper method by placing this line at the top:

<% environment.context_class.instance_eval { include MyHelper } %>

然后您可以使用帮助方法与erb

Then you can use the helper method with erb

.foo {
    color: <%= cool_color %>
}

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