Yves Senn 7d196cf360 #to_param returns nil if to_key returns nil. Closes #11399. ... The documentation of `#to_key` (http://api.rubyonrails.org/classes/ActiveModel/Conversion.html#method-i-to_key) states that it returns `nil` if there are no key attributes. `to_param` needs to be aware of that fact and return `nil` as well. Previously it raised the following exception: ``` 1) Error: ConversionTest#test_to_param_returns_nil_if_to_key_is_nil: NoMethodError: undefined method `join' for nil:NilClass /Users/senny/Projects/rails/activemodel/lib/active_model/conversion.rb:65:in `to_param' /Users/senny/Projects/rails/activemodel/test/cases/conversion_test.rb:34:in `block in <class:ConversionTest>' ```		2014-02-04 10:27:46 +01:00
..
cases	#to_param returns nil if to_key returns nil. Closes #11399.	2014-02-04 10:27:46 +01:00
models	Removed old tests	2014-01-24 19:49:31 -08:00
validators	This is not an executable file	2010-12-16 01:49:28 +05:30
config.rb	Make Active Model test suite similar to Active Record	2009-03-20 10:32:24 +00:00