validates_with(*args, &block) Instance Public methods Passes the record

validates_absence_of(*attr_names) Instance Public methods Validates that the

lookup_ancestors() Instance Public methods When localizing a string, it goes

respond_to?(method, include_private_methods = false) Instance Public methods Also

==(other) Instance Public methods Equivalent to String#==. Returns

alias_attribute(new_name, old_name) Instance Public methods Allows you to make

define_model_callbacks(*callbacks) Instance Public methods

validate(record) Instance Public methods Override this method in subclasses

validators() Instance Public methods List all validators that are being used

test_persisted?() Instance Public methods Responds to persisted?