instance method
attribute_method_affix
Ruby on Rails edge
Since v3.0.20Signature
attribute_method_affix(*affixes)Declares a method available for all attributes with the given prefix and suffix. Uses method_missing and respond_to? to rewrite the method.
“‘ #{prefix}#{attr}#{suffix}(*args, &block) “`
to
“‘ #{prefix}attribute#{suffix}(#{attr}, *args, &block) “`
An ‘#{prefix}attribute#{suffix}` instance method must exist and accept at least the attr argument.
“‘ class Person
include ActiveModel::AttributeMethods
attr_accessor :name
attribute_method_affix prefix: 'reset_', suffix: '_to_default!'
define_attribute_methods :name
private
def reset_attribute_to_default!(attr)
send("#{attr}=", 'Default Name')
end
end
person = Person.new person.name # => ‘Gem’ person.reset_name_to_default! person.name # => ‘Default Name’ “‘
Parameters
-
affixesrest
Source
# File activemodel/lib/active_model/attribute_methods.rb, line 191
def attribute_method_affix(*affixes)
affixes.map! { |affix| AttributeMethodPattern.new(**affix) }
self.attribute_method_patterns = (attribute_method_patterns + affixes).freeze
undefine_attribute_methods
end
Defined in activemodel/lib/active_model/attribute_methods.rb line 191
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Defined in ActiveModel::AttributeMethods::ClassMethods