How to use Rails 3's ActiveSupport core extensions outside Rails

ruby-on-rails rubygems activesupport
changelog picture changelog · Jun 16, 2010 · Viewed 12.6k times · Source

I'm having a problem using ActiveSupport's core extensions on a gem I am developing.

I had it working with AS 2.3.8, but as soon as I wanted to port it to 3b4, the extensions stopped working and my test results are filled with lines such as: 

undefined method `blank?' for "something":String

I've included it via 

gem "activesupport"

followed by

require "active_support"

Is there anything else I need to call to include those extensions?

Answer

shingara picture shingara · Jun 16, 2010

ActiveSupport is more separate now in Rails 3.

If you want the all active_support thing, you can require 'active_support/all' now.

But if you want only the blank? method, you can try 

require 'active_support/core_ext/string'

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