I got it working. Controller - just fetches sub categories based on the given category id. Returns @sub_category to the view.
View - it decides if a subcategory select box is to be displayed or not based on the size of the array ie. if @subcategory.length >0 I will try out "@sub_categories.blank?" to see if it works too or not. Thanks ,Sijo kg! > QUESTION: How do you test if a given collection of objects is defined > in Ruby? > ========================================================== > In the case above in my controller method, it's @sub_categories - how > do I test that there are entries in it? > > I have tried using 'nil' by means of "if �...@sub_categories.nil" and > "if �...@sub_categories == nil". > I have tried using 'defined?' by means of "if defined? > @sub_categories". > > Both do not work. > In the world of perl (where I am from), I could test the variable for > truth (ie something like "if ( $sub_categories )" ). > > Please help, guys! --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
