changed?() Instance Public methods Returns true if any attribute

[](attribute) Instance Public methods When passed a symbol or a name of a method

to_param() Instance Public methods Returns a string representing

uncountable?(record_or_class) Class Public methods Identifies whether the class

errors() Instance Public methods Returns the Errors object that

respond_to_without_attributes?(method, include_private_methods = false) Instance Public methods

each() Instance Public methods Iterates through each error key, value pair in

attribute_alias?(new_name) Instance Public methods Is new_name

as_json(options = nil) Instance Public methods Returns a hash representing the

!~(regexp) Instance Public methods Equivalent to String#!~. Match