Update update method.
Fix identation.
Remove commented test.
Fix compatibility with ruby 1.9
Implement a method for looger.
Refactor read_value method.
Customize error message on rescue.
Refactor create create method.
Update variables names.
Refactor test.
Re order methods.
Return field type.
Call save.
refactor to_a method.
Refactor update and create methods.
Add id to update method.
Updated logger action.
Add compatibility with ruby 1.9.3.
Add ruby logger.
Add create! and save! methods.