Salty Bits


Beware of nil ActiveRecord stores in Ruby 2.0

14 Jan 2014

Edit: Better yet, just switch over to JSON

We're in the process of upgrading Kumu to Rails 4 on Ruby 2.0. So far things have gone pretty smooth but today we ran into issue that hasn't had much coverage.

If you're using ActiveRecord::Store and upgrading to Ruby 2.0 you'll want to make sure your store columns default to empty strings instead of nils. If you don't you may run into the following:

TypeError: no implicit conversion of nil into String
~/.rbenv/versions/2.0.0-p353/lib/ruby/2.0.0/psych.rb:205:in `parse'
~/.rbenv/versions/2.0.0-p353/lib/ruby/2.0.0/psych.rb:205:in `parse_stream'
~/.rbenv/versions/2.0.0-p353/lib/ruby/2.0.0/psych.rb:153:in `parse'
~/.rbenv/versions/2.0.0-p353/lib/ruby/2.0.0/psych.rb:129:in `load'

We use the YAML coder and since this is a parsing issue it's likely coder specific. Not sure if the other coders have the same issue but wanted to throw out a quick heads up.