Website bug

Dave Hodgkinson davehodg at
Sun Jan 6 00:26:06 GMT 2008

On 5 Jan 2008, at 22:48, Peter Corlett wrote:

> On 5 Jan 2008, at 18:30, Simon Wistow wrote:
>> On Fri, Jan 04, 2008 at 02:55:52PM +0000, Dave Cantrell said:
>>> There's a bug in the magic that converts XML into HTML for the  
>>> website -
>>> if a book has an ISBN-13 (and all new books should now) then the  
>>> Amazon
>>> URL used to linked them is broken cos ASINs are still only 10  
>>> digits.
>> Is there a mapping from ISBN-13 to ASIN? If not I'll hack the  
>> logic to
>> just not link.
> This page:
> ie=UTF8&pf_rd_t=501&pf_rd_m=A3P5ROKL5A1OLE&pf_rd_p=&pf_rd_s=assoc- 
> left-1&pf_rd_r=&pf_rd_i=assoc_help_main
> suggests that you're supposed to do an Amazon API call to get an  
> ASIN from an ISBN-13, which is a bit suboptimal. However, an easy  
> and obvious thing to do is to convert ISBN-13s starting 978 to  
> ISBN-10s and then use that as the ASIN.

Isn't that a cache-able do-once on first load of the book...?

Dave Hodgkinson
Back in the Market Risk swamp

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