[Zope-dev] Expressions like <dtml-var this url> bail out cont rary to intuition -- proposed fix enclosed

[Martijn Pieters]

From: Jarkko Kniivilä [mailto:jarkko.kniivila@ambientfactor.fi]
> 
> While upgrading a Zope 2.1.0 beta installation recently to 2.1.3, I
> discovered that a recent change made to 'DT_Var.py' rendered DTML
> expressions like <dtml-var this url> and &dtml.url-this; 
> inoperative. I had
> been relying on them for a default action url on my forms (in 
> DTML methods).
> Especially the entity reference syntax is quite a nice 
> abbreviation for the
> more explicit <dtml-var "this().absolute_url()"> which still 
> continues to
> work.
> 
> The enclosed fix simply acknowledges that 'this' isn't a ZODB 
> namespace
> object but a method encapsulating python 'self' and thus 
> always needs to be
> invoked. I'm not quite on the top of things why the previous 
> behavior was
> changed in the first place (Jim? Anyone?).
> 
> I'll file this to the Collector if there's no objection by 
> you. Copyright to
> the patch is hereby transfered to Digital Creations to be used freely.

Breaking access to this().abosulte_url() in the above way was probably
not intentional. Yes, please put it in the Collector, as it may get lost
otherwise.

-- 
Martijn Pieters, Software Engineer 
| Digital Creations http://www.digicool.com 
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