[ZPT] simple condition statement

[Fabiano Weimar dos Santos]

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Hi

try

<span tal:define=3D"xyz python:request.get('Year',0)"></span>

if Year does not exist in request, the next parameter ( 0 ) will be
returned. The request implementation is a dict. Thus, you allway can use
.get and .set methods.

bye

Em Sex, 2002-06-14 =E0s 18:17, Daniel Tang escreveu:
>=20
> Hello,
>=20
> I am trying to assign a value to a variable if it was not given in the
> request/form variables.  But there is an error if the Year isn't defined,
> which occurs on the "exists" condition.  What is the correct way to do
> this?
>=20
>=20
>=20
>=20
>=20
>=20
> <!-- Get the year from the form IF it is defined -->
>=20
> <span tal:condition=3D"exists:request/form/Year" tal:define=3D"global Yea=
r
> string:${request/form/Year}"></span>
>=20
>=20
>=20
> <!-- Else set to default value 2001 -->
>=20
> <span tal:condition=3D"not:exists:request/form/Year" tal:define=3D"global=
 Year
> string:2001"></span>
>=20
>=20
>=20
>=20
>=20
> Error Type: Undefined
> Error Value: Year not found in 'request/form/Year', at line 12, column 1
>=20
>=20
>=20
> Thanks in advance,
> Daniel
>=20
>=20
>=20
> _______________________________________________
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>=20
--=20
Fabiano Weimar dos Santos (Xiru) <fabiano@x3ng.com.br>
X3ng Web Technology <http://www.x3ng.com.br>

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