# File lib/big_record/connection_adapters/column.rb, line 170
      def type_cast_code(var_name)
        if collection?
          case type
            when :string    then "#{self.class.name}.hash_to_string_collection(#{var_name})"
            when :text      then "#{self.class.name}.hash_to_string_collection(#{var_name})"
            when :integer   then "#{self.class.name}.hash_to_integer_collection(#{var_name})"
            when :float     then "#{self.class.name}.hash_to_float_collection(#{var_name})"
            when :decimal   then "#{self.class.name}.hash_to_decimal_collection(#{var_name})"
            when :datetime  then "#{self.class.name}.hash_to_time_collection(#{var_name})"
            when :timestamp then "#{self.class.name}.hash_to_time_collection(#{var_name})"
            when :time      then "#{self.class.name}.hash_to_dummy_time_collection(#{var_name})"
            when :date      then "#{self.class.name}.hash_to_date_collection(#{var_name})"
            when :binary    then "#{self.class.name}.hash_to_string_collection(#{var_name})"
            when :boolean   then "#{self.class.name}.hash_to_boolean_collection(#{var_name})"
            when :map       then nil
            when :object    then nil
            else nil
          end
        else
          case type
            when :string    then nil
            when :text      then nil
            when :integer   then "(#{var_name}.to_i rescue #{var_name} ? 1 : 0)"
            when :float     then "#{var_name}.to_f"
            when :decimal   then "#{self.class.name}.value_to_decimal(#{var_name})"
            when :datetime  then "#{self.class.name}.string_to_time(#{var_name})"
            when :timestamp then "#{self.class.name}.string_to_time(#{var_name})"
            when :time      then "#{self.class.name}.value_to_dummy_time(#{var_name})"
            when :date      then "#{self.class.name}.string_to_date(#{var_name})"
            when :binary    then "#{self.class.name}.binary_to_string(#{var_name})"
            when :boolean   then "#{self.class.name}.value_to_boolean(#{var_name})"
            when :map       then nil
            when :object    then nil
            else nil
          end
        end
      end