HAML: Indenting if/else statements with common content

问题

I have the following in my view:

- if (condition)
  %div.truecondition
    (Ten lines of content)
- else
  %div.falsecondition
    (Ten lines of the same content)

I'd like to factor out the ten lines of content to go below the if/else statement...but if I do that, indentation means the content won't be nested inside the div specified in the if/else. I'm sure this is a common problem, I'm just wondering what the solution is. So...how do I factor out that ten lines while keeping the content nested in the .truecondition/.falsecondition div?

回答1:

you can try Ternary operator:

%div{ :class => condition ? 'truecondition' : 'falsecondition' }
  (Ten lines of content)

回答2:

JCorcuera's answer is better, but this is dirtier:

%div(class="#{!!condition}condition")
  (Ten lines of content)

Assuming you literally have css classes named truecondition and falsecondition, which as I type this seems unlikely.

来源：https://stackoverflow.com/questions/6147610/haml-indenting-if-else-statements-with-common-content