My url builder requires the « id » field so _before_insert wouldn’t work.

That’s a good suggestion though!

Thanks Anthony :)

> Le 10 mars 2015 à 18:00, Anthony <abasta...@gmail.com> a écrit :
> 
> Might be easier with a _before_insert callback, so you can add the new value 
> along with the initial insert instead of after:
> 
> db.mytable._before_insert.append(lambda fields: 
> fields.update(url=make_url(fields)))
> 
> Anthony
> 
> On Tuesday, March 10, 2015 at 12:10:12 PM UTC-4, Niphlod wrote:
> code an _after_insert callback.
> 
> On Tuesday, March 10, 2015 at 4:21:26 PM UTC+1, Louis Amon wrote:
> I'm trying to hard-code URLs for SEO purposes so I have a function 
> ("make_url(row)") that builds the paths based on other fields.
> 
> I was thinking of using "compute=make_url", but it seems that update 
> operations also call the compute.
> 
> 
> Is there a way to use compute only on INSERT operations, and not on UPDATE ?
> 
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