method
calculate_changes_from_defaults
v4.2.7 -
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Class: ActiveRecord::AttributeMethods::Dirty
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calculate_changes_from_defaults()
private
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# File activerecord/lib/active_record/attribute_methods/dirty.rb, line 84 def calculate_changes_from_defaults @changed_attributes = nil self.class.column_defaults.each do |attr, orig_value| set_attribute_was(attr, orig_value) if _field_changed?(attr, orig_value) end end