没有Rails的Ruby中的部分HAML模板 [英] Partial HAML templating in Ruby without Rails

问题描述

对于我的很小的项目，我真的不需要Rails的开销，所以我试图仅使用简单的Ruby和HAML来实现这一目标.

I really don’t need the overhead of Rails for my very small project, so I’m trying to achieve this just using just plain Ruby and HAML.

我想在我的HAML模板中包含另一个HAML文件.但是我还没有找到一种很好的方法，或者真的有用的方法.

I want to include another HAML file inside my HAML template. But I haven’t found a good—or really usable—way of doing this.

例如，我有以下两个HAML文件:

For example, I have these two HAML files:

documents.haml

documents.haml

%html
 %body
  = include(menu.haml) body
  %article …

menu.haml

menu.haml

%ul
 %li
  %a whatever …

包含显然不是走这条路的方法.但这在描述本示例中要实现的目标方面做得很好.

Include is obviously not the way to go here. But it does a nice job describing what I’m trying to achieve in this example.

推荐答案

我之前已经这样做过，仅适用于速成模板制作人.最简单的方法是只在父对象中呈现HAML:

I've done this before, just for a quick-and-dirty template producer. The easiest way is to just render the HAML inside the parent object:

%p some haml that's interesting
= Haml::Engine.new('%p this is a test').render
%p some more template

您很可能希望构建一些方法来简化此过程-几个辅助方法.也许您编写了一个名为render_file的文件，它以文件名作为参数.该方法可能类似于:

You'll more than likely want to build some methods to make this easier--a couple of helper methods. Maybe you write one called render_file that takes a filename as an argument. That method might look something like:

def render_file(filename)
  contents = File.read(filename)
  Haml::Engine.new(contents).render
end

然后，您的模板将更像:

Then, your template would look more like:

%p some template
= render_file('some_filename.haml')
%p more template

注意，您可能需要将self传递给原始的Haml :: Engine渲染，以便它知道如何找到您的render_file方法.

Note, you will probably need to pass self to the original Haml::Engine render so that it knows how to find your render_file method.

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