Thierry Florac wrote:
I want to set some references from object to another object through. I try to explain this with example classes.Le vendredi 29 janvier 2010, Vladislav Vorobiev <vav...@mykniga.de> a écrit : ====================================================================== ...Thierry thank you for answer but it doesn't help. I implement all what you sad. I tried with normal “list” and than swiched to “PersistentList” code looks like that: from persistent.list import PersistentList import transaction <snip> myList=PersistentList([self.context.pfad, 'object]) myList[0] = PersistentList([self.context.pfad, 'object])[0] #hope I anderstud you right ob.refList= myList ob._p_changed = True ob.refList._p_changed = True self.context._setObject(id, ob) After add I call again: ob._p_changed = True ob.refList._p_changed = True transaction.commit() I see the commitet trunsactions in ZMI The same problem. After restart ist the Attribut not in context. For example return's Before restart: ***1 ob.refList[0].objectValues()[0].absolute_url() /pfad/object/FirstObjectOfReferencedObject After restart only the id of the object: ob.refList[0].objectValues()[0].absolute_url() FirstObjectOfReferencedObject Here is a place for an other question: Normaly self.absolute_url() returns url with hostname, (http://localhost/bla/bla) but already befor restart I get without http://localhost/... see ***1 It seem's that I forgot something. I would be glad to if somebody explain me this problem.====================================================================== In fact I'm not really sure to understand your data structure and it's goals... Could you explain me what you want to do ?? Thierry Example with two classes: #Create classes >>>class School: >>> pass >>>class People: >>> pass #Create objects >>>p=People() >>>s0=School() >>>s0.name="Konrad School" >>>s1=School >>>s1.name="Leopold School" Now I set the referece >>>p.school1=s0 >>>p.school2=s1 Now I can access through the attribut to s0 and s1 objects: p.school1.name “Konrad School“ This construction works persistent without problems. The idea is to put the references in a list. >>>p.schools=[s0,s1] to access them >>>p.schools[0].name “Konrad School“ >>>s1.name="Leo School" >>>p.schools[1].name “Leo School“ >>>type(p.schools[1]) <type 'classobj'> It works in zope without restart. If the server was restartet I get some unwanted results. See my previews posts. The same effects I get with PersistentLists... I hope it is more understandable. Thanks Vlad |
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