I’m in the process of upgrading an app from rails 3.0.6 to 3.2.13.
I have a problem with multi_json not recognising any json adapter.
I have tested with the gems json-1.8.0 and oj (2.1.4), without success…
Inpsecting the adapter it is looking for, I get JSONGem, which seems correct, as I have an adapter in /usr/lib/ruby/gems/1.8/gems/multi_json-1.7.7/lib/multi_json/adapters/json_gem.rb
which has the class
class JsonGem < JsonCommon
I’ve tried to manually set the adapter used as described at http://weblog.rubyonrails.org/2009/4/24/this-week-in-edge-rails/ :
ActiveSupport::JSON.backend = “JsonGem”/“JSONGem”/…
but to no avail.
The gems are available, as checked with:
$ bundle show | grep json
- json (1.8.0)
- multi_json (1.7.7)
I’ve tried with ruby 1.8.7 and ruby 1.9.2.
Does anyone have suggestions of how to fix this?