March 2001 - Zope-Dev

(Z)Catalog searches
by richard＠bizarsoftware.com.au 16 Mar '01

16 Mar '01

We're using the internals of ZCatalog to do searching stuff in our Python Product. I've managed to get it working at a basic level by constructing a Catalog instance and adding indexes and calling searchResults(). Only now I need to get into more advanced features, like partial word matches and multiple or'ed search fields. I tried just passing a GlobbingLexicon() to Catalog instantiation, but that completely failed to work. As far as I can tell, it's not using the GlobbingLexicon at all (I put a print statements in all the methods and nothing is printed). I then tried using ZCatalog.Vocabulary(globbing=1) and that didn't seem to work either (still no hits on the GlobbingLexicon methods). Also, any hints as to how to have a "match any" multiple field "or" search would be greatly appreciated. I _think_ I can somehow pass a list of the fields to searchResults() as some sort of argument, but I'm really not sure how. Richard -- Richard Jones richard(a)bizarsoftware.com.au Senior Software Developer, Bizar Software (www.bizarsoftware.com.au)

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ZFormulator
by Chui Tey 15 Mar '01

15 Mar '01

I had fixed zformulator to work with 2.2.4, haven't checked against 2.3 though. Get this at http://teyc.editthispage.com/filedownloads

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ANNOUNCE: Zope 2.3.1 beta 2 released
by Brian Lloyd 15 Mar '01

15 Mar '01

Hello all, Zope 2.3.1 beta 2 has been released - you can download it from Zope.org: http://www.zope.org/Products/Zope/2.3.1b2/ Zope 2.3.1b2 contains a number of bug fixes, including the fixes for the issues addressed by the 02/23 and 03/08 hotfixes. It also contains a number of changes to address issues with ZCatalog. New data structures have been introduced to reduce the number of conflict errors caused by object indexing under some types of usage, and to reduce the amount of object database bloat that occurs when indexed objects change frequently. The changes to ZCatalog have been designed so that newly created ZCatalog objects will take advantage of the new data structures. Existing ZCatalog objects will continue to work with the old data structures, but will not gain any of the benefits of the new code. It is possible to upgrade an existing ZCatalog object to use the new data structures by following the How-To at: http://www.zope.org/Members/mcdonc/HowTos/UpgradeToNewCatalog **Users of the Zope source releases should note** that this release contains new C code, as well as a few changes to existing C code. If you are using a source release (or the source diff update), be sure to run 'w_pcgi.py' or 'wo_pcgi.py' as appropriate before starting Zope to ensure that your binaries are rebuilt. 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/2.3.1b2/CHANGES.txt http://www.zope.org/Products/Zope/2.3.1b2/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

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manage_main <select ... /> don't work with Mozilla
by Cyril Elkaim 15 Mar '01

15 Mar '01

Hi, The last builds of Mozilla do not accept anymore this kind of HTML tags: <select .... /> I have discuss with Moz developers and they say it's not in the standard. So now we must use something like <select ...>. All the other tags must follow the same syntax, of course. The problem with the management interface of Zope is it uses '/>' in many places. So it's not possible to use Moz for creating new objects for example. So should it be possible to do something about it :-) Cyril

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Need Help: Can I use Folder w/Customizer to implement a ImapClient ???
by Ulrich Eck 15 Mar '01

15 Mar '01

hi ZPattern-Freaks out there, i want to write an ImapClient for CyrusImap as Zope-Product. - Handle several Mailboxes - Use Zope-Management for IMAP-Folder-Management and ACL/Security - Use Custom-Interface as Mailclient The Final Structue I want to have. It should act like a standart Zope Folder-Tree: - ImapClient ( holds Connection-Objects toIMAP-Mailboxes, Storage=ZODB) |- ImapRootFolder ( Connection-Object and Root-Folder , Storage=ZODB) | |-ImapFolder (a folder on the imapserver, not persitantly stored) | | |-ImapFolder (..) | | | | ... | | |-ImapMessage (a message on the imapserver, not persitantly stored) | |-ImapMessage (..) |- ImapRootFolder (..) | |-ImapFolder (..) | | |-ImapFolder (..) | | | | ... | | |-ImapMessage (..) | |-ImapMessage (..) after big thougths about whether to use an Implementation like - ZLDAPConnection * A Root Connection Object class ZLDAPConnection (Acquisition.Implicit,Persistent, OFS.SimpleItem.Item,...) * the nodes ar stored in a Tree of Entries class Entry(Acquisition.Implicit,OFS.SimpleItem.Item) or LocalFS does quite the same ... BUT: I want to be able to "skin" every meta_type separately, but I cannot just use Acquisition because of duplicates like "index_html" ------------------- - Use a Specialist AFAIK a Rack can only serve one meta-type It's hard to implement the Folder Structure in racks ------------------- - Use a Folder w/Customizer this pretty looks like the one to use ... but phillip told me some time ago,that I can use it only with persistant ZODB-Storage like other zope-objects - just use Dataskins with factory. So I decided to give it a try. I now have an ImapClient (CustomizerFolder) which stores ImapRootFolder(Dataskin,Acquisition.Implicit,Folder) the RootFolder emulates an ObjectManager to serve the Folders retrieved from the IMAP-Server. The ImapFolder-Objects are stored in an Attribute Children which is a List. and are created like this: def IMAPFolderFactory(client,Name,FullName="", PaddedName=""): handle = ImapDataSkins.ImapFolder(Name) handle._setRack(client.aq_inner.aq_parent._getDataManagerFor(handle)) handle.__dict__['_rackMounted'] = 0 handle = handle.__of__(client) handle.setup(Name,FullName,PaddedName) return handle Now I have an Tree I can browse in the ZMI ... BUT ... "I lose contact to Zope" when i browse down into the first object wich is not persistantly stored. I allthough don't get the "mapped Attributes/Methods" from the Customizer. Is there a possiblity to use the CustomizerFolder with not ZODB-Objects - What Methods need to be implemented that this could work any help appreciated .. don't want to stop halfway ;-) .. thanks Ulrich Eck

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BerkeleyStorage with BerkeleyDB 3.2
by Duncan Booth 15 Mar '01

15 Mar '01

I wanted to get BerkeleyStorage installed on my Windows system. Since there is a nice downloadable binary version of the Python bindings for version 3.2, I downloaded and installed that, then modified BerkeleyStorage.py to support the new interface instead of the old one. If anyone wants a copy, see http://www.zope.org/Members/Duncan/BerkeleyStorage -- Duncan Booth duncan(a)rcp.co.uk

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get_request() idea
by Tim McLaughlin 15 Mar '01

15 Mar '01

I'm making some mod's to the property sheets to allow them to fire an event (call a hook) when they change on an instance. Anyway, it looks like I'm gonna have to hand the REQUEST object all around, so I can get the data out of it that I need (as well as allow other inspection in the future). Anyway, I propose that we could make Zope internals many times simpler by having the REQUEST object available in all places Python simply by calling get_request() (a __built_in__ method much like get_transaction). This may even speed up Zope since in fact, no stack space will have to be managed for the REQUEST object to be passed to methods that might or might not need it. Cheers, Tim Please don't kill me if this is a _really_stupid_idea_.

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Is ZFormulator alive?
by Spicklemire, Jerry 15 Mar '01

15 Mar '01

Arno said: > I am currently checking ZFormulator and could import the demo, > but was unable to add new input fields. >From a post by Steve Spicklemire to the Zope list, October, 27th, 2000: " line 312: Form.py should be: __roles__ = ('Manager',) " This was quickly retrieved by searching at NIP Ltd. http://zope.nipltd.com/public/lists/zope-archive.nsf/ Thanks again Steve, and NIP folks! Jerry S.

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PythonScript for iso_week
by Steve Alexander 15 Mar '01

15 Mar '01

Hi folks, At various times in the past, people on this list have asked about getting week numbers from DateTime instances. I recently had this requirement, so I wrote a PythonScript to produce an iso_week tuple (year, week_number, dow_monday_is_one__sunday_is_seven) from a DateTime instance. I've submitted the same to the collector as a feature-enhancement patch to DateTime.py. I've tested this by empirically comparing it with the output of mxDateTime's iso_week attribute for all days from 1920-01-01 to some date in the twenty-third century. Note also that this iso_week method does not create additional DateTime instances. See also http://www.cl.cam.ac.uk/~mgk25/iso-time.html -------- PythonScript iso_week Parameters: date doy=date.dayOfYear() dow=(date.dow()-1)%7 y=date.year() thurs_this_week=doy+(3-dow) is_leap=y%4==0 and (y%100!=0 or y%400==0) if thurs_this_week>(is_leap and 366 or 365): week=1 if dow<8: y=y+1 else: mon_this_week=doy-dow day_year_begins=(dow-doy+1)%7 day_of_4_jan=(day_year_begins+3)%7 monday_of_first_week=4-day_of_4_jan week=(mon_this_week-monday_of_first_week)/7+1 if week==0: y=y-1 is_last_leap=y%4==0 and (y%100!=0 or y%400==0) if day_year_begins==4 or (day_year_begins==5 and is_last_leap): week=53 else: week=52 return y,week,dow+1 -------- -- Steve Alexander Software Engineer Cat-Box limited http://www.cat-box.net

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Re: [Zope-dev] Permission problems
by Dieter Maurer 14 Mar '01

14 Mar '01

morten writes: > I've been struggling with some permission problems, and I'd appreciate > some help... Maybe, you take a look at URL:http://www.dieter.handshake.de/pyprojects/zope/book/chap3.html Perhaps, its security section make some aspects clearer. Dieter

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