February 2001 - Zope-Dev

Calling Catalog from python script
by R. David Murray 16 Feb '01

16 Feb '01

I'll probably figure this out as soon as I post like last time, but I've been staring at it and can't see my mistake. The following code returns a list of None's: objs = [] for catent in container.Catalog(context.REQUEST): objs.append(container.Catalog.getobject(catent.data_record_id_)) return objs I've checked, and catent is a mybrains instance and catent.data_record_id_ has an increasing number as its value. So why doesn't this work? Also, and this is a better reason for posting this to zope-dev than asking for help is <grin>: why can't I say catent.getobject() That would seem to be a lot more OOish. This is under Zope-2.3.0, by the way. --RDM

5 8

ANNOUNCE: Call for Zopistas at O'Reilly OSCON
by Brian Lloyd 16 Feb '01

16 Feb '01

Hello all, I'm looking for some true believers who are planning to attend the O'Reilly Open Source Convention in San Diego this July and who would be interested in giving a Zope-related talk. The OSCON brings together geeks from all over the Open Source map, and this is a great opportunity to help get the word out about Zope (or your own Zope work). This is a crowd you can talk nuts and bolts with, so topics are pretty wide open. If you are interested and can give a firm commitment, please email me directly (brian(a)digicool.com) and let me know what you'd like to talk about and an approximate length. And if you need added incentive, I'll make sure that anyone who gives a talk leaves with some coveted Zope booty :^) Brian Lloyd brian(a)digicool.com Software Engineer 540.371.6909 Digital Creations http://www.digicool.com

1 0

AttributeError
by Andre Schubert 16 Feb '01

16 Feb '01

Hi all, Could anyone help me to solve the following Error that occurs sometimes. 2001-02-16T09:11:42 ERROR(200) ZODB Couldn't load state for '\000\000\000\000\000\0008\004' Traceback (innermost last): File /usr/share/Zope-2.2.4/lib/python/ZODB/Connection.py, line 443, in setstate AttributeError: 'None' object has no attribute 'load' Q: How can a find out wich object affected, by id or path or somewhat else ?? as

2 2

The structure of lib/python/*
by Erik Enge 16 Feb '01

16 Feb '01

Hi, Zopistas. I've been reading a lot of Zope code the last couple of years, but still I really don't see any overall structure of lib/python. Is this documented somewhere?

1 0

Problem upgrading to Zope2.3
by Jay, Dylan 16 Feb '01

16 Feb '01

I did a clean install (on w2k), then copied across my products and Data.fs etc and when I restarted I got the following when I tried to access manage_main on the root folder. Funny thing is this doesn't happen on any other folder. Error type: SystemError Error value: Failed to import class Guard from module Products.PythonMethod.zbytecodehacks.VSExec Traceback (innermost last): File D:\Zope\AUSLAB~1\lib\python\ZPublisher\Publish.py, line 222, in publish_module File D:\Zope\AUSLAB~1\lib\python\ZPublisher\Publish.py, line 187, in publish File D:\Zope\AUSLAB~1\lib\python\Zope\__init__.py, line 221, in zpublisher_exception_hook (Object: ApplicationDefaultPermissions) File D:\Zope\AUSLAB~1\lib\python\ZPublisher\Publish.py, line 171, in publish File D:\Zope\AUSLAB~1\lib\python\ZPublisher\mapply.py, line 160, in mapply (Object: manage_main) File D:\Zope\AUSLAB~1\lib\python\ZPublisher\Publish.py, line 112, in call_object (Object: manage_main) File D:\Zope\AUSLAB~1\lib\python\Shared\DC\Scripts\Bindings.py, line 324, in __call__ (Object: manage_main) File D:\Zope\AUSLAB~1\lib\python\Shared\DC\Scripts\Bindings.py, line 353, in _bindAndExec (Object: manage_main) File D:\Zope\AUSLAB~1\lib\python\App\special_dtml.py, line 236, in _exec (Object: manage_main) File D:\Zope\AUSLAB~1\lib\python\DocumentTemplate\DT_In.py, line 664, in renderwob (Object: objectItems) File D:\Zope\AUSLAB~1\lib\python\DocumentTemplate\DT_In.py, line 759, in sort_sequence (Object: objectItems) File D:\Zope\AUSLAB~1\lib\python\ZODB\Connection.py, line 496, in setstate SystemError: (see above) I don't even have any PythonMethods in my base directory. Why is that something obscure as this could trip up the whole management interface?

2 1

crazy idea?
by Huayin Wang 16 Feb '01

16 Feb '01

Imagine this: 1) for every zope objects we implement a generic handler called "deploy", which return true or false. 2) we then plug in a little check in zope's acquisition process to first call the handler of the objects in the acquisition hierarchy, if true, use that object. Otherwise, keep going down the acquisition tree. of course, there can be an option indicating whether the rendered results for objects whose deploy method return false should be collected and used. 3) an easy implementation could be: define an attribute "_deploy" for every object, default to true. define a zope object "deploy" which is the default, when invoked as an object's method, just return the "_deploy" attribute of the object. the deploy method can be overridden with user provided method. 4) the "-deploy" attribute can be turned on or off through the web management interface. treat them as just the same as other attribute. I think this little device can be used to turn an object on or off easily, and if you think about the fact that it can be changed dynamically, the possibility is endless. comments?

1 0

Re: [Zope-dev] LONGing for normal integers... the sequal
by francine broekhove 16 Feb '01

16 Feb '01

Hi guys, after solving the problem with the long integers (thanx) there's another related incident happening with the tree tag. I've used the tree tag according to the 'book' like: <dtml-tree id=search_id branches_expr="sql.zt_child_lookup(parent_id=search_id)"> ... </dtml-tree> The Mysqlda returns again something incompatible (couldn't it simply be handled in the Mysqlda code for downward compatibility reasons?) so i get: 'call of non-function (type long int)' which kills the zope function, with Info: (['AAAAAAAAE5M=', []], {'childless_decoration': '', 'id': 'search_id', 'branches_expr': <method Eval.eval of Eval instance at 0x899ea4c>, 'url': 'tpURL'}, (['AAAAAAAAE5M=', []],), (['AAAAAAAAE5M=', []],))) Trying to fix it with an adjusted ('_.int(search_id)' didn't work, which is hardly surpricing as i do not know what i'm doing in the first place when the tree tag is involved. So again LONGing (..the AAAAAAAAE5M seems somehow appropriate ..). In the mean time i'm trying to figure it out. Will keep you posted. (zope 2.3.0.src, python 2.0, MySQL-python-0.3.2, MySQL 3.23, Z MySQL DA 2.0.0) _____________________________________________________________ Get Your Private, Free Email at <A HREF="http://www.burningmail.com" target="_new">http://www.BurningMail.com</A>

1 0

2gb ZODB size limit
by Tim McLaughlin 16 Feb '01

16 Feb '01

Is this true on windows too? I saw some mention of this limit be lifted, but if so, in what version?

7 11

How to read ZODB with Python script?
by Petr Knapek 15 Feb '01

15 Feb '01

Hi Zopists, I would like to know how to connect to running Zope ZODB from a python script. I would like to have possibility to read only objects from ZODB? Is there any possibility how to do it when Zope application server is running and not to corrupt the ZODB? Thanks, Petr -- Petr Knápek NEXTRA Czech Republic, s.r.o., Hlinky 114, 603 00 Brno, Czech Republic e-mail: mailto:petr.knapek@nextra.cz tel:+420-5-43 554 150 FAX:+420-5-43 554 214

5 4

ANNOUNCE: Zope 2.3.1 beta 1 released...
by Brian Lloyd 15 Feb '01

15 Feb '01

Hello all, Zope 2.3.1 beta 1 has been released - you can download it from Zope.org: http://www.zope.org/Products/Zope/2.3.1b1/ Zope 2.3.1b1 fixes a number of issues that have come up through usage of 2.3.0, as well as some previously reported issues from the Zope bug collector. For more information on what is new in this release, see the CHANGES.txt and HISTORY.txt files for the release: http://www.zope.org/Products/Zope/2.3.1b1/CHANGES.txt http://www.zope.org/Products/Zope/2.3.1b1/HISTORY.txt Note that we have also posted "diff" updates as .tgz files that will let you easily upgrade an existing 2.3.x site. These updates are available for those currently using the 2.3.x source release or the 2.3.x binary releases. To apply a differential update to your site: - download the appropriate .tgz file from zope.org - shutdown your Zope process - copy the .tgz to your Zope directory and extract it - run w_pcgi or wo_pcgi *if you are not using a binary release* - restart your process Brian Lloyd brian(a)digicool.com Software Engineer 540.371.6909 Digital Creations http://www.digicool.com

1 0