module ActiveModel::Attributes::ClassMethods
Public Instance Methods
attribute(name, type = Type::Value.new, **options)
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# File lib/active_model/attributes.rb, line 18 def attribute(name, type = Type::Value.new, **options) name = name.to_s if type.is_a?(Symbol) type = ActiveModel::Type.lookup(type, **options.except(:default)) end self.attribute_types = attribute_types.merge(name => type) define_default_attribute(name, options.fetch(:default, NO_DEFAULT_PROVIDED), type) define_attribute_method(name) end
Private Instance Methods
define_default_attribute(name, value, type)
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# File lib/active_model/attributes.rb, line 47 def define_default_attribute(name, value, type) self._default_attributes = _default_attributes.deep_dup if value == NO_DEFAULT_PROVIDED default_attribute = _default_attributes[name].with_type(type) else default_attribute = Attribute::UserProvidedDefault.new( name, value, type, _default_attributes.fetch(name.to_s) { nil }, ) end _default_attributes[name] = default_attribute end
define_method_attribute=(name)
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# File lib/active_model/attributes.rb, line 30 def define_method_attribute=(name) safe_name = name.unpack("h*".freeze).first ActiveModel::AttributeMethods::AttrNames.set_name_cache safe_name, name generated_attribute_methods.module_eval <<-STR, __FILE__, __LINE__ + 1 def __temp__#{safe_name}=(value) name = ::ActiveModel::AttributeMethods::AttrNames::ATTR_#{safe_name} write_attribute(name, value) end alias_method #{(name + '=').inspect}, :__temp__#{safe_name}= undef_method :__temp__#{safe_name}= STR end