How can I do to write "Text" just once and in the same time check if the path_info includes 'A'?

Question

- if !request.path_info.include? 'A'
  %{:id => 'A'}
   "Text"
- else
  "Text"

"Text" is written twice. How can I do to write it just once and in the same time check if the path_info includes 'A'?

Answer 1

There are two ways to do this. Using a partial, or using a content_for block:

If "Text" was longer, or was a significant subtree, you could extract it into a partial. This would DRY up your code a little. In the example given this would seem like overkill.

The better way in this case would be to use a content_for block, like so:

- if !request.path_info.include? 'A'
  %{:id => 'A'}
    =yield :content
- else
  =yield :content

-content_for :content do
  Text

Here we yield to the content_for block in both places, removing the need to duplicate "Text". I would say in this case this is your best solution.

Answer 2

You can make the attribute conditional using this constuct:

%{:id => ('A' if request.path_info.include? 'A')}
  "Text"

Answer 3

What about simply saving it inside a local variable?

- text = "Text"     
- if !request.path_info.include? 'A'
  %div{:id => 'A'}
    = text
- else
  = text