ISBN

Summary

Validates and stores an ISBN value.

Properties

Description

The "ISBN" datatype allows the validation, storage and retrieval of a single ISBN (International Standard Book Number) value. From version 3.9 of Exponential, this datatype also supports the new ISBN-13 format. Note that from the 1st of January, 2007, the book industry will start using 13 digit ISBN codes (ISBN-13) to identify all books in their supply chains. The following screenshot shows the class attribute edit interface for this datatype.

Class attribute edit interface for the "ISBN" datatype.

The "ISBN-13 format" checkbox makes it possible to configure the datatype so that it validates and stores the ISBN codes according to the ISBN-13 format (this is off by default). Note that the object edit interface will appear differently (one input field instead of four) when this checkbox is checked (see below).

Object attribute edit interface

The following screenshot shows the default object attribute edit interface for this datatype.

Object attribute edit interface for the "ISBN" datatype.

The following screenshot shows the object attribute edit interface for this datatype when configured to handle ISBN-13 codes.

Object attribute edit interface for the "ISBN" datatype when in ISBN-13 mode..

Raw output

The ".content" of an ezcontentobjectattribute object returns a string containing the actual ISBN value.