Re: [Zope3-Users] Principal annotations
On Wednesday 08 March 2006 03:32, Shane Hathaway wrote: Chapter 27 of the Zope 3 book and the docstring for IPrincipal in Zope 3.2 both suggest Zope has the ability to provide a browser view of principal annotations. That would be a really great bit of functionality to have! Unfortunately, AFAICT, the system doesn't work at all in Zope 3.2. The Zope 3 book says you have to create an Authentication Service, but no such thing exists anymore. Unfortunately, this is correct. The PAS is gone. It was one of those bits in the book that I knew would be a problem with Zope 3.1, but could do nothing about. :-( Instead, I created Pluggable Authentication Utility and put a principal folder inside it. But principals created this way are InternalPrincipal objects which do not implement IPrincipal, so they don't have the extra view I registered. I could find no other way to visit a user object in the management interface. Therefore, views of IPrincipal are currently never used. Okay. IPrincipal is used though. The strategy changed from PAS to PAU. In PAS a principal always existed, once you created it. In PAU, only information about the principal is stored and the principal (providing IPrincipal) is created once the authentication was successful. Was this an accident? Did it work at one time? Are there plans to make principal annotation views work again? And how can I edit user annotations in the meanwhile? The principal annotation views (can you actually give me some names?) could be easily fixed by working with IPrincipalInfo objects instead IPrincipal objects. This step should not be too hard. Regards, Stephan -- Stephan Richter CBU Physics Chemistry (B.S.) / Tufts Physics (Ph.D. student) Web2k - Web Software Design, Development and Training ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] Principal annotations
On Mar 11, 2006, at 3:14 AM, Thierry FLORAC wrote: On Thu, 2006-03-09 at 01:14 -0700, Shane Hathaway wrote: Your idea of annotating InternalPrincipals rather than Principals seems to work, but I apparently did something wrong, because edited annotations don't persist! I can save edits, but when I reload the page, they're gone. I don't know why. As said in a previous (and un-replied :-( !) post a few days ago, I have the same kind of problem with an adapter using annotations : if I set my attributes using a property attribute, the setter is not called and modifications are lost when page is reloaded ; I have to call the setter directly (after modifying the interface, of course) from my adapter for modifications to be stored... I haven't had time to read much or reply, so these may not be what you and Shane are talking about, but I just saw this... - yes, don't annotate principals. principal objects are not persistent, and like the Zope 2 PAS are created and discarded within a request. annotating internal principals is not recommended either: it won't work with other plugin designs. Use principal annotations. Make sure that the adapter providing IAnnotations for principals returns the principal annotations. (I thought I had done this for Zope 3, but maybe I just did it for some internal work...) - Thierry, send me a link to your email and I'll try to look at it (especially if it is short :-) ). It could be that you are not using a persistent-aware data structure (PersistentDict or a BTree). We successfully do the sort of thing you seem to be describing, so I suspect some disconnect. Gary ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] Principal annotations
Shane Hathaway wrote: Alternatively, it may possible to setup an adapter for IInternalPrincipal to IPrincipal ? I tried that first, but it got messy. IPrincipal needs an id, but InternalPrincipal doesn't know its own id; only the folder that contains it knows. However, the folder has no method for giving me the id of an InternalPrincipal, so the encapsulation isn't complete. Maybe I should work harder in this direction anyway. zapi.getName(principal) will get the id managed by principal folder, e.g. site=root['mysite'] sm = site.getSiteManager() pf = sm['tools']['PluggableAuthentication']['PrincipalFolder'] pf zope.app.authentication.principalfolder.PrincipalFolder object at 0x419957ec list(pf) [u'1'] principal = pf['1'] principal zope.app.authentication.principalfolder.InternalPrincipal object at 0x4183d3ec from zope.app import zapi zapi.getName(principal) u'1' Your idea of annotating InternalPrincipals rather than Principals seems to work, but I apparently did something wrong, because edited annotations don't persist! I can save edits, but when I reload the page, they're gone. I don't know why. I seem to recall encountering a similar problem once before, but unfortunately can't remember the details. I do remember looking at the annotation code to work it out. Thanks for helping me over a hurdle. You'd think a Zope 2 veteran like me would have little trouble with Zope 3 Maybe that has something to do with it. We switched from zope2/cmf/plone to zope3 early on in the development of a new application. Interestingly the python-only programmer back then took to zope3 much easier than zope2/cmf/plone. get to know practically all of Zope 3 before I can really do anything with it. (I had to do the same thing with Zope 2.) I'm sure it will all click into place soon enough. -Tom ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] Principal annotations
Shane Hathaway wrote:
Your idea of annotating InternalPrincipals rather than Principals seems
to work, but I apparently did something wrong, because edited
annotations don't persist! I can save edits, but when I reload the
page, they're gone. I don't know why.
A quick test, hope it helps...
from zope.app.authentication.principalfolder import InternalPrincipal
from zope.app.annotation import IAttributeAnnotatable
from zope.interface import classImplements
classImplements(InternalPrincipal, IAttributeAnnotatable)
annotations = IAnnotations(principal)
annotations
{}
from persistent.dict import PersistentDict
annotations['mykey'] = PersistentDict()
info = annotations['mykey']
info['abc'] = 123
import transaction
transaction.commit()
^D
site=root['f2l']
sm = site.getSiteManager()
pf = sm['tools']['PluggableAuthentication']['PrincipalFolder']
principal = pf['1']
principal.__annotations__
BTrees._OOBTree.OOBTree object at 0x4190f974
principal.__annotations__['mykey']
persistent.dict.PersistentDict object at 0x4178496c
principal.__annotations__['mykey']['abc']
123
___
Zope3-users mailing list
Zope3-users@zope.org
http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] Principal annotations
Tom Dossis wrote: Shane Hathaway wrote: Thanks for helping me over a hurdle. You'd think a Zope 2 veteran like me would have little trouble with Zope 3 Maybe that has something to do with it. We switched from zope2/cmf/plone to zope3 early on in the development of a new application. Interestingly the python-only programmer back then took to zope3 much easier than zope2/cmf/plone. get to know practically all of Zope 3 before I can really do anything with it. (I had to do the same thing with Zope 2.) I'm sure it will all click into place soon enough. Well, I've come to realize I only had a lot of success with Zope 2 when I worked on it full time. Now I have other priorities, so Zope 2 only gets a little of my attention. I hoped that I could accomplish more in less time with Zope 3, but it certainly hasn't worked out that way. I'm sure I would enjoy working with Zope 3 full time, but working with Zope 3 in my hobby time is not fun at all. Shane ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
[Zope3-Users] Principal annotations
Chapter 27 of the Zope 3 book and the docstring for IPrincipal in Zope 3.2 both suggest Zope has the ability to provide a browser view of principal annotations. That would be a really great bit of functionality to have! Unfortunately, AFAICT, the system doesn't work at all in Zope 3.2. The Zope 3 book says you have to create an Authentication Service, but no such thing exists anymore. Instead, I created Pluggable Authentication Utility and put a principal folder inside it. But principals created this way are InternalPrincipal objects which do not implement IPrincipal, so they don't have the extra view I registered. I could find no other way to visit a user object in the management interface. Therefore, views of IPrincipal are currently never used. Was this an accident? Did it work at one time? Are there plans to make principal annotation views work again? And how can I edit user annotations in the meanwhile? Shane ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] Principal annotations
Shane Hathaway wrote: Was this an accident? Did it work at one time? Are there plans to make principal annotation views work again? And how can I edit user annotations in the meanwhile? No one knows, I guess. After spending many days on a seemingly simple problem, I've drawn a blank. Shane ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] Principal annotations
Shane Hathaway wrote: Shane Hathaway wrote: Was this an accident? Did it work at one time? Are there plans to make principal annotation views work again? And how can I edit user annotations in the meanwhile? No one knows, I guess. After spending many days on a seemingly simple problem, I've drawn a blank. Not that I've tried this myself (yet). Re: the ZopeBook example, I'd change the annotation adapter from IPrincipal to IInternalPrincipal.. adapter factory=.info.PrincipalInformation provides=.interfaces.IPrincipalInformation for=zope.app.authentication.principalfolder.IInternalPrincipal permission=zope.ManageServices / I guess you'd also need to make the InternalPrincipal class annotatable, in your application configure.zcml, add... content class=zope.app.authentication.principalfolder.InternalPrincipal implements interface=zope.app.annotation.IAttributeAnnotatable / /content Also in the example the browser:editform directive should be changed from IPrincipal to IInternalPrincipal. Good luck. -Tom ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] Principal annotations
Tom Dossis wrote: Shane Hathaway wrote: Shane Hathaway wrote: Was this an accident? Did it work at one time? Are there plans to make principal annotation views work again? And how can I edit user annotations in the meanwhile? No one knows, I guess. After spending many days on a seemingly simple problem, I've drawn a blank. Not that I've tried this myself (yet). Re: the ZopeBook example, I'd change the annotation adapter from IPrincipal to IInternalPrincipal.. Alternatively, it may possible to setup an adapter for IInternalPrincipal to IPrincipal ? ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
