Ah silly me, I totally overlooked the default functionality. And those triggers seem useful. Thanks :-)
On Thursday, April 25, 2013 8:23:24 PM UTC+2, Niphlod wrote: > > a computed field gets calculated on update by design..... it's something > "dependant" on all other rows values, so if they change, the computed value > needs to change also. > If you want to calculate it only on insert, why don't you just set a > default value ? > If the case is more complicated, I urge you to make good use of > "triggers": they're definitely a time saver. > > web2py.com/books/default/chapter/29/06#before-and-after-callbacks > > On Thursday, April 25, 2013 5:47:30 PM UTC+2, Ivan Šandrk wrote: >> >> I'm using a compute field to set uid's for model instances. The problem >> is that the compute function gets called on INSERT and on each subsequent >> UPDATE operation. >> >> I don't want the UPDATE's to change this field - can I somehow detect >> where there's an INSERT or an UPDATE in progress? I thought about checking >> the field's previous value, but unfortunately compute fields are excluded. >> > -- --- You received this message because you are subscribed to the Google Groups "web2py-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
