September 2001 - Zope

Lifting the profile of Zope - Down Under (ie Australia)
by Richard Volpato 08 Sep '01

08 Sep '01

Hi, I am looking for Australian Zope developers and would also like to get an estimate of the current state of the Zope developer base in Australia. I have gone to the new Australian Users group site OzZope.org but it's too new to give a good indication. A reasonably large organisation in Australia is currently exploring whether to fund a major Zope based application. It is probably the largest such Zope project in Australia. The key business units within that organisation need to manage complex documents whose schema changes at various times. Zope's distributed authoring, object database, role based delegations, LDAP adapter and, of course, zero license fee make it ideal. As the IT infra-structure at the periphery of this organisation is very uneven a web-based approach is particularly appropriate. A prototype has already revealed the power of Zope. However the enthusiasms of the users in these business units who need it, have generated disquiet and then resistance from others in the organisation particularly those in Head Office who have invested in a 'one-size fits all' platform based on Lotus Notes. The failure of this platform to deal with the complexities of the content management problem in the first place led to a Zope based solution appearing so compelling. Other, smaller Zope based applications in other organisations, are also generating similar 'divisions'. As an Australian Zope users group OzZope has been formed, it will help me and presumably other organisations, if developers in Australia, would go to OzZope.org and register. In this way, those interested in exploring Zope solutions can make contact with a developer base. If you are keen to offer services for Zope related work, please contact me. The more we can show that a developer community exists in Australia, the more likely I can convince corporate skeptics that Zope is part of something vibrant, growing and here for the long term. And, of course, if I can assist in getting this larger project running, then further spin off projects will emerge as well. Look forward to hearing from you - and see you over at OzZope.org. Richard Volpato

1 0

Formulator question
by Kevin Lewandowski 08 Sep '01

08 Sep '01

I'm using the "automatic rendering" method described in the HOWTO, so I have a method called "render_form". Is it possible to populate a formulator with values when rendering? such as from a ZSQL method? for example: <dtml-in "zsql_method(key='xyz')"> <dtml-var render_form> </dtml-in> And then the form values would be populated from the sql output. Is that possible? thanks a lot -Kevin __________________________________________________ Do You Yahoo!? Get email alerts & NEW webcam video instant messaging with Yahoo! Messenger http://im.yahoo.com

2 2

Re: [Zope] has_permission for arbitrary user
by Mark N. Gibson 07 Sep '01

07 Sep '01

> > > > > Mark N. Gibson writes: > > > <dtml-if expr="acl_users.getUser('someuser').has_permission('Change DTML > > > Document',this())"> > > > Yes > > > <dtml-else> > > > No > > > </dtml-if> > > > > > > Unfortunately, has_permissions seems to be implented to call > > > has_permission on the currently logged in user; i.e. AUTHENTICATED_USER. > > I doubt this very much! > > > > But "getUser" is probably protected. > > You may consider using a proxie role... > > > > Here's the code for has_permission from the BasicUser Class > > def has_permission(self, permission, object): > """Check to see if a user has a given permission on an object.""" > return getSecurityManager().checkPermission(permission, object) > > Draw your own conclusions. > > I wrote my own to deal with the problem: Oops. There's a typo in the code below, should be > > def hasPermissions( user, obj, permissions ): > """ check to see if user has permissions for object """ > > # if type(permissions) == type(''): > # roles = [roles] if type(permissions) == type(''): permissions = [permissions] > > #get roles for user, include local roles on obj > userRoles=user.getRoles() + obj.get_local_roles_for_userid(user.getUserName()) > for perm in permissions: > objRoles=obj.rolesOfPermission(perm) > for oRole in objRoles: > if oRole['name'] in userRoles: > if oRole['selected']: > return 1 > return 0 > > > > Dieter > > > > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://lists.zope.org/mailman/listinfo/zope > ** No cross posts or HTML encoding! ** > (Related lists - > http://lists.zope.org/mailman/listinfo/zope-announce > http://lists.zope.org/mailman/listinfo/zope-dev ) >

1 0

Zope 2.3.3 crashes questions
by Holger Lehmann 07 Sep '01

07 Sep '01

Hi all, we have noticed a very interesting phenomenon: Using Zope 2.3.0 without any add-ons to server static (!) HTML Pages works fine. Sometimes (e.g. late sunday nights) the Zope Master Process seems to restart all his children .... After Upgrading to a new (!) Zope 2.3.3 with the same job to do as above we noticed that the Zope Master Process seemed not to be able anymore to restart it's children but itself died. Q: Why does this happen ? Q: Whay can 2.3.0 survive and 2.3.3 crashes ? Q: How can we work around it ? Remark: We have to continue using 2.3.3 since we are developing a dynamic website based on products that do only work properly in 2.3.3 and not in 2.3.0 :-( Thanks in advance, Holger -- ----------------------------------------------------------------- Building Bridges -o-o-o-o--------------------------------------------------------- catWorkX GmbH Dipl.-Ing. Holger Lehmann Buxtehuder Straße 112c 21073 Hamburg Tel: +49 (700) catWorkX Tel: +49 (40) 89 06 46-0 Fax: +49 (40) 89 06 46-66 mailto:Holger.Lehmann@catworkx.de http://www.catworkx.de http://www.catbridge.de

2 1

regex in 2.4.0
by Paul Zwarts 07 Sep '01

07 Sep '01

Greetings all, I keep getting errors from my Zope240 (using python2.1.1) that the following python file: /Zope/lib/python/ts_regex.py is using a the deprecated regex library. Is this an oversight or did I compile something wrong? Its pretty old news that re.sub is the way to go. Thanks, Paul Zwarts

4 5

'dtlm-tree' function
by Ismet 07 Sep '01

07 Sep '01

hi i needed make use of dtml-tree function of Zope, but don't know how to do following: in dtml-tree i want to list everything except images, all index_html files and any object that has noSitemap property. is this possible or a big problem? if anyone know please help me. ismet

2 1

unique ID of object
by Tom Cameron 07 Sep '01

07 Sep '01

I need to be able to uniquely identify a zope object by another way other than its context and id. I want to be able to create an object and then identify that object again even if it has been moved in the zope tree. I assume that each zope object must have some totally unique id that I can call somehow. I could write a routine that generates random ids that would be almost unique, but I am wondering if Zope has such a feature already built in somewhere. Tom

3 2

Abstract ZClasses
by Tom Cameron 07 Sep '01

07 Sep '01

I am wondering if I can create an abstract Zclass. By this I mean a class off which I can subclass other objects, but that class itself is not visible in any of the dropdown menus to the users. I want to do this so that at a later date I can add methods to this class and have those methods inherited by its subclasses. I hope this makes sense. Thanks Tom

3 2

get last change userid of history
by Marcus Schopen 07 Sep '01

07 Sep '01

Hi, how to get the userid of the last user who changed an object? Marcus

2 1

has_permission for arbitrary user
by Mark N. Gibson 07 Sep '01

07 Sep '01

I'm basically trying to do this: <dtml-if expr="acl_users.getUser('someuser').has_permission('Change DTML Document',this())"> Yes <dtml-else> No </dtml-if> Unfortunately, has_permissions seems to be implented to call has_permission on the currently logged in user; i.e. AUTHENTICATED_USER. So the question is, how do I determine if an arbitrary user (not the logged in user) has a certain permission on a certain object? Thanks, Mark --- Mark Gibson Kaivo, Inc. mark(a)kaivo.com

2 1