changes() Instance Public methods Returns a hash of changed attributes indicating

clear() Instance Public methods Clear the error messages.

validates_inclusion_of(*attr_names) Instance Public methods Validates whether

to_hash(full_messages = false) Instance Public methods Returns a

define_attribute_method(attr_name) Instance Public methods Declares an attribute

persisted?() Instance Public methods Indicates if the model is persisted.

changed() Instance Public methods Returns an array with the name of the attributes

define_attribute_methods(*attr_names) Instance Public methods Declares the attributes

attribute_method?(attribute) Instance Public methods Returns true

attribute_method_prefix(*prefixes) Instance Public methods Declares a method