[ZOPE] Pb with ZGDchart or ZSQLMethod ??

[David PEYRIERES]

Hello,
I have a problem with ZGDChart 0.6.2 .
I've linked it to a ZSQLMethod (via an ZODBC Database Connection) to
plot data curves.
When, at least, 1 data misses, there's no graph plotted.
How can I do to plot this even if I got misses ?
(NB: I've tried the SQL fonction nvl(col,substitute value) into my SQL
Method to obtain values when ODBC returns no values,  but it doesn't
work !!)
Thanks.


mailto david.peyrieres@meteo.fr