type_cast

# File activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb, line 84
        def type_cast(value, column, array_member = false)
          return super(value, column) unless column

          case value
          when Range
            return super(value, column) unless /range$/ =~ column.sql_type
            PostgreSQLColumn.range_to_string(value)
          when NilClass
            if column.array && array_member
              'NULL'
            elsif column.array
              value
            else
              super(value, column)
            end
          when Array
            case column.sql_type
            when 'point' then PostgreSQLColumn.point_to_string(value)
            when 'json' then PostgreSQLColumn.json_to_string(value)
            else
              return super(value, column) unless column.array
              PostgreSQLColumn.array_to_string(value, column, self)
            end
          when String
            return super(value, column) unless 'bytea' == column.sql_type
            { :value => value, :format => 1 }
          when Hash
            case column.sql_type
            when 'hstore' then PostgreSQLColumn.hstore_to_string(value)
            when 'json' then PostgreSQLColumn.json_to_string(value)
            else super(value, column)
            end
          when IPAddr
            return super(value, column) unless ['inet','cidr'].include? column.sql_type
            PostgreSQLColumn.cidr_to_string(value)
          else
            super(value, column)
          end
        end