July 2000 - Zope-Dev

ZPatterns
by jdiebold＠imexpert.com 26 Jul '00

26 Jul '00

Hi, I wonder where I can find lots of information about the Zpatterns. It seems wonderfull but a little hard to understand. I want to know exactly how it works and what it does. thanks in advance.

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RE: [Zope] Re: Probably ZopeFind Bug
by Brian Lloyd 26 Jul '00

26 Jul '00

> By now, I know why we get this strange "objectValues__roles__" > result inside ZopeFind. > > In "FindSupport:145", "ZopeFind" strips away the acquisition > context of an object. Thanks Dieter, I've checked in a fix for this. Brian Lloyd brian(a)digicool.com Software Engineer 540.371.6909 Digital Creations http://www.digicool.com

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ZODB....
by jdiebold＠imexpert.com 26 Jul '00

26 Jul '00

Hi, I want to develop an external program that can store and retrieve an Object (such as a Person) in the ZoDB I tried the example that I found in the How to's but it doesn't works .... In fact, I have the following message : ZODB.FileStorage(file) attribute Error : FileStorage -->But I have imported ZODB And, when I try to import ZODB.FileStorage : the program stops with the following message : TypeError : call of non-function type what's wrong ? did Anybody have an example like this... ? Can anybody help me ?

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display of SQL request answer
by Vincent DELHOMMOIS 26 Jul '00

26 Jul '00

Hi, I am using the Z ODBC DA connexion to access an "Access" database via ODBC. I created a connexion -> No problem An SQL method -> No problem How can I customise the display of the answer of the SQL request ? Thanks a lot. Vincent

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Incorrect Padding?
by Chris Withers 26 Jul '00

26 Jul '00

Does anyone know what this means? The page views fine for me and this is the first error of this type I've seen since we launched the archives. I wonder what WebWhacker is doing to cause this? cheers, Chris Automatic Zope Response wrote: > > Zope reported an error for: > http://zope.nipltd.com/public/lists.html > Error Type: Error > Error Value: Incorrect padding > Traceback: > Traceback (innermost last): > File /mnt/data/2/zope/external/2-1-6/lib/python/ZPublisher/Publish.py, line 151, in publish > File /mnt/data/2/zope/external/2-1-6/lib/python/Products/SiteAccess/ChangeBehaviors.py, line 228, in traverse > File /mnt/data/2/zope/external/2-1-6/lib/python/AccessControl/User.py, line 433, in validate > (Object: RoleManager) > File /var/tmp/python/python-root/usr/lib/python1.5/base64.py, line 46, in decodestring > File /var/tmp/python/python-root/usr/lib/python1.5/base64.py, line 32, in decode > Error: Incorrect padding > HTTP_USER_AGENT => Mozilla/4.0 (compatible; WebWhacker 4.0; Windows) > PARENTS => [<Folder instance at 88d4e10>, <Application instance at 869e048>] > PATH_INFO => /public/lists.html > PATH_TRANSLATED => /public/lists.html > REMOTE_ADDR => 127.0.0.1 > REQUEST_METHOD => GET > RESPONSE => HTTP/1.0 204 No Content > Server: Zope/Zope 2.1.6 (source release, python 1.5.2, linux2) ZServer/1.1b1 > Date: Sun, 23 Jul 2000 05:12:21 GMT > Connection: close > Content-Length: 0 > SERVER_SOFTWARE => Zope/Zope 2.1.6 (source release, python 1.5.2, linux2) ZServer/1.1b1

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Re: Probably ZopeFind Bug (was: Re: [Zope] all DTML Methods of current folder and subfolder)
by Dieter Maurer 26 Jul '00

26 Jul '00

Dieter Maurer writes: > Jerome Alet writes: > > Thanks to you, the syntax you gave me is accepted by the dtml parser, but > > both > > > > <dtml-in "ZopeFind(this(), obj_metatypes=['Folder'], > > obj_expr='''not objectValues(['Folder'])''', > > search_sub=1)"> > > > > and > > > > <dtml-in "ZopeFind(this(), obj_metatypes=['Folder'], > > obj_expr='not objectValues([\'Folder\'])', > > search_sub=1)"> > > > > have given me an empty list. > I analysed this strange behavior in Zope 2.1.6 > and have a partial explanation. > > Although the permission setting for "objectValues" > is "Access contents information" which by default > is granted to "Anonymous" and "Manager", > only "Manager" is allowed to access "objectValues" > in the context of the above "ZopeFind". > > I could not yet determine, why this is the case. > > But taken this fact for granted, the behavior > becomes clear: the access to "objectValues" results > in an "Unauthorized" exception. This > is catched but prevents any object from being > added to the result list. By now, I know why we get this strange "objectValues__roles__" result inside ZopeFind. In "FindSupport:145", "ZopeFind" strips away the acquisition context of an object. base=obj if hasattr(obj, 'aq_base'): base=obj.aq_base if not hasattr(base, 'objectItems'): return result try: items=base.objectItems() except: return result This, too, removes the information needed for "acl_user" based authorization: In the traversal of the aquisition chain to determine the roles associated with "objectValues", the application object on top of the acquisition hierarchy is not longer reached. Therefore, "ApplicationDefaultPermissions" is not used and "PermissionRole" falls back to its own default "('Manager',)". This acquisition context stripping is almost surely responsible for other problems reported for ZopeFind, too. The behaviour would disappear, if the line try: items=base.objectItems() is replaced by try: items=obj.objectItems() Note: "ZopeFindAndApply" would need the same patch. I am not sure, however, whether this will have adverse effects at other places. I will put a reference to this report into the Collector. Dieter

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ZODB on MacOS?
by Tom Loredo 25 Jul '00

25 Jul '00

Hi folks- I am aware that Zope as a whole cannot be compiled on the Mac. But does anyone know the situation for the components used by ZODB alone? I have heard that threading was the main obstacle to a Mac compile of Zope. Does ZODB use threading? I have experience building NumPy C extensions on the Mac, so if all that is involved is identifying the appropriate modules and creating CodeWarrior projects to build them, I will attempt a Mac build of ZODB. But if anyone knows of serious obstacles, I'd rather not waste my time rediscovering them! Thanks, Tom Loredo

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New Border Aware Image, updated info on alternate syntax.
by Jon Franz 25 Jul '00

25 Jul '00

The Border Aware Image add-on has been updated for Zope 2.2.0 - installation has been heavily updated and is now much easier. see: http://www.zope.org/Members/Coventry/Border_aware_image Also, the alternate syntax patch/add-on has been tested with Zope 2.2.0 now, and no changes were needed. The new documentation reflects this at: http://www.zope.org/Members/Coventry/dtml_shortcut Also: I will be submitting a proposal soon to dev.zope.org: the project would handle evaluating and integrating small add-ons such as these and others into the Zope core, please email me if you would be interested in participating. ~ Jonathan M. Franz ~ Senior Developer/Technical Leader ~ ~ SW-Dev Division, Springdale, Ohio Office ~ 513.618.2248 ~ ~ OneNet Communications (A USNet/MDM Company) www.one.net ~

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RE: [Zope-dev] PATCH: Expanded "access" file
by Phillip J. Eby 25 Jul '00

25 Jul '00

At 10:54 AM 7/25/00 -0400, Brian Lloyd wrote: > >I think that this is _definitely_ the kind of thing that >should be done in the fishbowl on dev.zope.org. It's there now. See: http://dev.zope.org/Wikis/DevSite/Proposals/UserProgrammableSecurityObjects It covers in full, I think, the issues that Ty and I have been struggling with to make LoginManager and ZPatterns give users the power to script user databases and local roles in a secure way, while not having things blow up due to infinite recursion as the security model checks that it has the right to check that it has the right to check that it has the right to....

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(no subject)
by Bruno Nana 25 Jul '00

25 Jul '00

Hi, I have one problem with a Zmethod. Here is the method: select *,summe=sum(count(*)) from neuigkeiten where ( username like '%%' or autorloginname like '%%' or headline like '%%' or textfeld like '%%') order by headline That is i want to select some data from database and save the number of data who are found in summe. There is no error at this level, but there is a problem when i list the result in the dtml document. There are more data as i need. Please would you help me to resolv this problem!! Thank Bruno

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