instance method cast_value

# File activemodel/lib/active_model/type/integer.rb, line 118
        def cast_value(value)
          case value
          when ::Integer
            value
          when ::String
            max_bytesize = max_cast_bytesize
            str = value.bytesize > max_bytesize ? value.byteslice(0, max_bytesize) : value
            str.to_i rescue nil
          else
            value.to_i rescue nil
          end
        end