[Zope] Re: How to do...[Rendering zpt on the fly]
Hi Garito, I saw in another thread you still need this. If I'm not wrong what you are pretending is to somehow render zpt on the fly. So, here is my idea: I would like to write things like: object.property = 'here/anotherproperty' object.anotherproperty = 'Barcelona' and ask it like: print object.property -> 'Barcelona' or -> 'Barcelona' Is this possible? I think you could perhaps create a new class to store the tal expression attributes, let's say you called it ExpressionAttribute. This class must be callable and be able to evaluate tal expressions. This is a small sketch of how I think it should look like: from Products.PageTemplates.ZopeTemplate import ZopeTemplate class ExpressionAttribute: #Here I also assume that you only enter the expressions #without html and the tal part, like: 'here/property' #Please also noticed that all sintax errors in your zpt #code must be catched somewhere def __init__(self, id, talExpr): self.talExpr = '' % talExpr #I'm not sure about this, but I think it will create a Template on #the fly. self.zpt = ZopePageTemplate(id, text = self.talExpr) #Note: I really don't know if you have to pass other parameters to #pt_render, ie: the container of your property. You will have to test #this. def __call__(self): return self.zpt.pt_render() Then, in the __init__ of your zope product you will need to do things like this: class YourProd(...): def __init__(self,prop1,prop2,prop3,...): #This is a normal property self.prop1 = prop1 #This two are tal expression properties self.prop2 = ExpressionAttribute(prop1) self.prop3 = ExpressionAttribute(prop1) Then, I guess you can call it as: yourProdObj.prop3 or in tal: here/prop3 I'm not sure about what I wrote and if this is what you are looking for. I just hope it helps. Regards Josef ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] How to create a new TAL statement?
Garito schrieb: Hi all! As Aj and Chris advise my to forget the __getattr__ bussiness I try to solve the same question by other ways Now I have a new question: Can you point me to some help about how to create a new TAL statement? I would like to create a tal:yanged (for example) statement to control would work :-) But what are you really trying to do and why? Regards Tino ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
[Zope] How to create a new TAL statement?
Hi all! As Aj and Chris advise my to forget the __getattr__ bussiness I try to solve the same question by other ways Now I have a new question: Can you point me to some help about how to create a new TAL statement? I would like to create a tal:yanged (for example) statement to control how zope give to use some properties Thanks! -- Mis Cosas http://blogs.sistes.net/Garito ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Weird ZCatalog issue...
Chris Withers wrote: This ain't right, anyone else seen this or anything like it? zopectl debug: >>> len(app.some_catalog.unrestrictedSearchResults()) 2937144 >>> i = 0 >>> for b in app.some_catalog.unrestrictedSearchResults(): i+=1 >>> i 821165 Also: >>> len(tuple(app.some_catalog.unrestrictedSearchResults()) 821165 Why is the lazy list of brains getting its length wrong? Chris -- Simplistix - Content Management, Zope & Python Consulting - http://www.simplistix.co.uk ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
[Zope] Weird ZCatalog issue...
This ain't right, anyone else seen this or anything like it? zopectl debug: >>> len(app.some_catalog.unrestrictedSearchResults()) 2937144 >>> i = 0 >>> for b in app.some_catalog.unrestrictedSearchResults(): i+=1 >>> i 821165 wtf? (Zope 2.8) Chris -- Simplistix - Content Management, Zope & Python Consulting - http://www.simplistix.co.uk ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
