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Posted By

xurde on 07/12/06


Tagged

css class match


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alvaroisorna
episod


class_if_match

Published in: Ruby 

This very simple but useful helper lets you putting some particular class tag to an html entity in case of coincidence of two arguments given. This case is very usual when building rhtml code and quite painful for programming it at the ERB. The most normal use is for

Plain TextExpand 
  1. Helper:
  2.  
  3. def class_if_match (class_id, arg_1, arg_2)  
  4.     if arg_1 == arg_2
  5.       return 'class="' + class_id + '"'
  6.     else
  7.       return nil
  8.     end    
  9. end
  10.  
  11. Example
  12.  
  13. rhtml file:
  14. <li <%= class_if_match ('active-item', item, @active_item) %>> the item </li>
  15.  
  16. css file:
  17. .active-item
  18. {
  19.   font-weight: bold;
  20. }

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