BigDecimal conversion doesn't work with 1.9.2p-180

[lolow]

I have just upgrade ruby 1.9.2 to 1.9.2.p180 and I have this error when converting the changes into yaml

TypeError (can't define singleton method "encode_with" for BigDecimal):
  /usr/local/rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/deprecated.rb:16:in `singleton_method_added'
  /usr/local/rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/deprecated.rb:16:in `define_method'
  /usr/local/rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/deprecated.rb:16:in `quick_emit'
  activesupport (3.0.4) lib/active_support/core_ext/big_decimal/conversions.rb:15:in `to_yaml'
  /usr/local/rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:55:in `accept'
  /usr/local/rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:246:in `block in visit_Array'
  /usr/local/rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:246:in `each'
  /usr/local/rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:246:in `visit_Array'
  /usr/local/rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:63:in `accept'
  /usr/local/rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:227:in `block in visit_Hash'
  /usr/local/rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:225:in `each'
  /usr/local/rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:225:in `visit_Hash'
  /usr/local/rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:63:in `accept'
  /usr/local/rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:36:in `<<'
  /usr/local/rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/psych.rb:165:in `dump'
  activerecord (3.0.4) lib/active_record/base.rb:1719:in `block in arel_attributes_values'
  activerecord (3.0.4) lib/active_record/base.rb:1712:in `each'
  activerecord (3.0.4) lib/active_record/base.rb:1712:in `arel_attributes_values'
  activerecord (3.0.4) lib/active_record/persistence.rb:265:in `create'
  activerecord (3.0.4) lib/active_record/timestamp.rb:47:in `create'
  activerecord (3.0.4) lib/active_record/callbacks.rb:281:in `block in create'
  activesupport (3.0.4) lib/active_support/callbacks.rb:413:in `_run_create_callbacks'
  activerecord (3.0.4) lib/active_record/callbacks.rb:281:in `create'
  activerecord (3.0.4) lib/active_record/persistence.rb:246:in `create_or_update'
  activerecord (3.0.4) lib/active_record/callbacks.rb:277:in `block in create_or_update'
  activesupport (3.0.4) lib/active_support/callbacks.rb:423:in `_run_save_callbacks'
  activerecord (3.0.4) lib/active_record/callbacks.rb:277:in `create_or_update'
  activerecord (3.0.4) lib/active_record/persistence.rb:39:in `save'
  activerecord (3.0.4) lib/active_record/validations.rb:43:in `save'
  activerecord (3.0.4) lib/active_record/attribute_methods/dirty.rb:21:in `save'
  activerecord (3.0.4) lib/active_record/transactions.rb:240:in `block (2 levels) in save'
  activerecord (3.0.4) lib/active_record/transactions.rb:292:in `block in with_transaction_returning_status'
  activerecord (3.0.4) lib/active_record/connection_adapters/abstract/database_statements.rb:139:in `transaction'
  activerecord (3.0.4) lib/active_record/transactions.rb:207:in `transaction'
  activerecord (3.0.4) lib/active_record/transactions.rb:290:in `with_transaction_returning_status'
  activerecord (3.0.4) lib/active_record/transactions.rb:240:in `block in save'
  activerecord (3.0.4) lib/active_record/transactions.rb:251:in `rollback_active_record_state!'
  activerecord (3.0.4) lib/active_record/transactions.rb:239:in `save'
  activerecord (3.0.4) lib/active_record/associations/association_collection.rb:271:in `block in create'
  activerecord (3.0.4) lib/active_record/associations/association_collection.rb:502:in `block in create_record'
  activerecord (3.0.4) lib/active_record/associations/association_collection.rb:479:in `add_record_to_target_with_callbacks'
  activerecord (3.0.4) lib/active_record/associations/association_collection.rb:502:in `create_record'
  activerecord (3.0.4) lib/active_record/associations/association_collection.rb:269:in `create'
  /home/lolow/.bundler/ruby/1.9.1/vestal_versions-6273df533f85/lib/vestal_versions/creation.rb:51:in `create_version'

[adamcooper]

Hi,

Could you give me a bit more of a sample of how to reproduce this?

Thanks,
Adam

[lolow]

Hi,
Sorrry for the delay, here is the workaround:
https://github.com/collectiveidea/acts_as_audited/issues/48/#issue/48