Hi, Herman Geldenhuys wrote:
Thanks Tino!
I understand that I need to initialize a _v_ attribute each time I create my client connection, seeing that it cannot be stored in the ZODB. My problem is that I need a way to initiate that attribute at Zope's startup. Lets say that there are certain ZOPE objects in the hierarchy of ZOPE. I need to initialize all these objects _v_clientConnection attributes at Zope's startup. Does anybody know of a way?
Why on startup? You have to instantiate it on each thread which is created. Why not just make the connection as soon as a method is called on the object? Imagine your object might be not actually loaded from ZODB on Zopes startup. something like: class myFancyProxy: def __init__(self,id,proxyparams): self.id=id self.proxyparams=proxyparams def doSomething(self,args): if not hasattr(self,'_v_connection'): self.connect() self._v_connection.doSomething(args) def connect(self) self._v_connection=createConnectionSomeHow(self.proxyparams) (Just a rough outline!) HTH Tino
Thanks
Herman
----- Original Message ----- From: "Tino Wildenhain" <tino@wildenhain.de> To: "Herman Geldenhuys" <hgeldenhuys@gmsonline.co.za> Cc: <zope@zope.org> Sent: Monday, July 28, 2003 9:35 AM Subject: Re: [Zope] Running a script at Zope startup
---------- From: Tino Wildenhain[SMTP:TINO@WILDENHAIN.DE] Sent: Monday, July 28, 2003 9:35:19 AM To: Herman Geldenhuys Cc: zope@zope.org Subject: Re: [Zope] Running a script at Zope startup Auto forwarded by a Rule
Hi Herman,
Herman Geldenhuys wrote:
EmailHi all!
I have searched for a sollution, but could not find an appropriate way
to
execute a python script when Zope starts up.
Does anybody know of a way that I am able to do this? What I basically
have,
is client objects residing inside Zope objects, that needs to connect to remote servers each time zope starts up. The client connections cannot persist in the ZODB, so I need to create them each time. The zope
objects in
this instance acts only as a proxy-type object.
A common way to do this not at start up but soon as the object is needed. Thats the way most DB adaptors do it. Search for _v_* volatile attributes for a start.
HTH Tino Wildenhain
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