Generate a model with a property named 'y' of any type. You should end up with a migration something like this:
class CreateYTests < ActiveRecord::Migration def self.up create_table :y_tests do |t|
t.integer :y end end
def self.down drop_table :y_tests end end
Then try to run YTest.new.to_xml and YTest.new.to_json in the console.
They should error and YTest.to_yaml should not error. Do they?
See:
