method
attribute
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Class: ClassMethods
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attribute(name, cast_type = nil, default: NO_DEFAULT_PROVIDED, **options)
public
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# File activemodel/lib/active_model/attributes.rb, line 19 def attribute(name, cast_type = nil, default: NO_DEFAULT_PROVIDED, **options) name = name.to_s cast_type = Type.lookup(cast_type, **options) if Symbol === cast_type cast_type ||= attribute_types[name] self.attribute_types = attribute_types.merge(name => cast_type) define_default_attribute(name, default, cast_type) define_attribute_method(name) end