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method

changes_from_zero_to_string?

Importance_0
Ruby on Rails latest stable (v4.0.2) - 0 notes - Class: ActiveRecord::AttributeMethods::Dirty
changes_from_zero_to_string?(old, value) private

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# File activerecord/lib/active_record/attribute_methods/dirty.rb, line 108
      def changes_from_zero_to_string?(old, value)
        # For columns with old 0 and value non-empty string
        old == 0 && value.is_a?(String) && value.present? && non_zero?(value)
      end
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