How does a dtml-method of a ZClass refer to the ZClass instance?
Help! I think I still have a long way to go to fully grasp the namespace/acquisition/whereverelsevaluescomefrom structure of Zope (and I suppose I'll find all of it rather obvious once I 'get it'). Simply put, I would like to access the objectValues (i.e. the contained objects) of a ZClass instance (based on ObjectManager) from a dtml-method of the ZClass, no matter what the calling path is, and I just can't figure it out. My specific problem is that I am calling the dtml-method of a ZClass instance from a dtml-document contained in a second instance of that same ZClass, and no matter what I've tried so far, the dtml-method always ends up using the objectValues in the second instance. I have verified that the ZClass dtml-method is called within the context of the instance I want, because if I insert <dtml-var aPropertyOfMyZClass> in the method, it spits out the correct value of the property for the instance. What I really need is to get a hold of the ZClass instance itself, let's call it 'self', so I can use 'self.objectValues()' inside of my dtml-method. It seems to me that if I can get to aPropertyOfMyZClass, I should be able to get to the instance that owns that property, but how? I know that 'aq_parent' and 'this' are not what I need. I have also tried 'superValues()', and 'getParentNode().objectValues()', just in case. Any suggestion would be appreciated. I have kept the description of my setup pretty simple here (there are a few intermediate calls between the dtml document and the dtml-method of my ZCLass); I can provide more details as required. Also, nobody has volunteered to answer my question at http://groups.yahoo.com/group/zope/message/64321; given the flow of messages on this list queries quickly get lost, so I hope that this reminder will get me a reply or two ;-) Cheers, Jean
Of course, one obvious solution is to use a Python script instead, which is what I have now done, but I am still curious to know if this is possible with a dtml method. Cheers, Jean
-----Original Message----- From: Jean Lagarde Sent: Thursday, June 28, 2001 11:10 AM
Help!
I think I still have a long way to go to fully grasp the namespace/acquisition/whereverelsevaluescomefrom structure of Zope (and I suppose I'll find all of it rather obvious once I 'get it').
Simply put, I would like to access the objectValues (i.e. the contained objects) of a ZClass instance (based on ObjectManager) from a dtml-method of the ZClass, no matter what the calling path is, and I just can't figure it out.
My specific problem is that I am calling the dtml-method of a ZClass instance from a dtml-document contained in a second instance of that same ZClass, and no matter what I've tried so far, the dtml-method always ends up using the objectValues in the second instance. I have verified that the ZClass dtml-method is called within the context of the instance I want, because if I insert <dtml-var aPropertyOfMyZClass> in the method, it spits out the correct value of the property for the instance. What I really need is to get a hold of the ZClass instance itself, let's call it 'self', so I can use 'self.objectValues()' inside of my dtml-method. It seems to me that if I can get to aPropertyOfMyZClass, I should be able to get to the instance that owns that property, but how?
I know that 'aq_parent' and 'this' are not what I need. I have also tried 'superValues()', and 'getParentNode().objectValues()', just in case.
Any suggestion would be appreciated. I have kept the description of my setup pretty simple here (there are a few intermediate calls between the dtml document and the dtml-method of my ZCLass); I can provide more details as required.
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Jean Lagarde