method
save_changed_attribute
v4.2.9 -
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Class: Enum
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save_changed_attribute(attr_name, old)
private
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# File activerecord/lib/active_record/enum.rb, line 142 def save_changed_attribute(attr_name, old) if (mapping = self.class.defined_enums[attr_name.to_s]) value = _read_attribute(attr_name) if attribute_changed?(attr_name) if mapping[old] == value clear_attribute_changes([attr_name]) end else if old != value set_attribute_was(attr_name, mapping.key(old)) end end else super end end