January 2002 - Zope-Dev

Calling every zoper, newbies to gurus
by seb bacon 14 Jan '02

14 Jan '02

First, apologies for the cross posting. I need to make sure this gets to as many people as possible, for obvious reasons... Everyone's got grumbles about how zope.org is organised. Now is the time to quit grumbling and do something about it. If you are a newbie or a guru, please take the time to respond to this email! I'm currently in the process of defining requirements for improving the zope.org website. The first part of this process is listening to the key constituencies for the site. Please note, I'm *not* planning on making a new products rating system, or a replacement for the fishbowl: I'm interested in the graphical design and informational content of the site. The questions are intended to help me understand who is using zope.org, how they use it, and what they would like it to be. If you don't want to answer all the questions, that's fine - just one answer is better than none. Reply to this email privately. I won't divulge any of the information to anyone else for any reasons, and the information will only be used to help improve the zope.org website. I will write up a report once I've received enough input, and publish the results online. Thanks for taking the time to help improve the web site... seb -=-=-=-=-=- 1) How did you hear about Zope? 2) Before you used Zope, what were you expecting? 3) How did the zope.org website change this? Did it confirm, exceed or undermine your expectations? 4) Are you: (a) just trying to find out about this zope thing (b) a zope newbie (c) a zoper of moderate ability (d) a zoper of distinction (e) a guru 5) How would you describe your role in your organisation? The following list is for guidance only - try to describe what you do in your own words. (a) developer (b) technology decision maker (c) business decision maker (d) technical architect / technical lead (e) content developer (f) content manager (g) just a hobby 6) (developers only) Give an estimate of your skill level (none, low, medium or high) for the following: (i) Client side development - HTML - Javascript - XML (ii) Server side development - ASP - PHP - ColdFusion - JSP - perl - SQL (iii) Server admin skills - Apache - IIS - mySQL - shell - postgres - oracle - ms sql server 7) Have you ever used the following products? - broadvision - vignette - interwoven - spectra - midguard - phpnuke - cocoon - mediasurface 8) Which of the technologies mentioned in questions 6 and 7 do you see as closest to Zope? (You can name more than one) 9) What is your preferred operating system? 10) If you could make one piece of information easier to find on zope.org, what would it be? 11) Graphically, what would you expect from a site like zope.org? Give examples from other sites, if possible. 12) Give 3 adjectives which describe the current zope.org website 13) Give 3 adjectives which describe how you'd like it to be 14) How often do you visit the zope.org website? 15) Which part of the current site do *you* find the most useful? 16) Give the current zope.org website a score between 1 and 10 (1=completely useless; 3=pretty bad 5=just about usable 7=pretty good 10=my favourite site) 17) Would you be happy for me to contact you again for more detail (I'm thinking of further emails or IRC sessions)? 18) Any other comments?

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Bug Or Feature in ZopeSplitter
by Andre Schubert 14 Jan '02

14 Jan '02

Hi all, After playing with Zope 2.4.3 and TextIndexes i found out that the TextIndex does not Index Digits( "12345" ). Thatswhy i looked in the sources and i saw in "next_word", that there is the caracter checked with "isalnum", but in "check_synstop" the caracter is checked with "isalpha"....? This means to me that every DIGIT is a stop-word and not a real character. If have changed the isalpha with isalnum and it seems to work... Can anyone explain this... thanks as

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Temporary Storage + Sessions + Versions: How?
by Joachim Werner 14 Jan '02

14 Jan '02

Hi! I have a problem concerning using versions and sessions together in Zope 2.5 beta 3: As the Temporary Storage is incompatible with versions, it seems to me that I can not at all use any session manipulating code in a method that might be called under version control. This is very disturbing to me. Are there any workarounds like temporarly switching off versioning before the SESSION.set is called? I guess the best fix would be if Temporary Storage would actually work with versions. This would mean to me that it should gracefully ignore the fact that we are working in a version. Joachim

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modify modification time of an object inside a product
by hoelzla＠t-online.de 14 Jan '02

14 Jan '02

dear zope gurus, i hope, this is the right place to post this: i'm trying to modify a modified ZSyncer product. The first modification implements bidirectional syncronisation. It simply exports any Zope object, transmitts it via XML-RPC and imports it remotely, or vice versa. The problem i'm trying to fix is that synced objects should have synced timestamps and not the original one vs. the importation time. My solution is to *ship* the modification time of the original object together with the object, but i don't know how to explicitly change the timestamp of the freshly imported one. the essential part of the code is the following method, which imports the object -- it gets the object data, the path of the object and its modification time (see "# change modification time"): def manage_addXMLRPC(self, data, obj_path, mod_time=0, add_in=1): """ Adds / imports an object """ # make sure we always get a string or a list if type(obj_path) == type('string'): obj_path = string.split(obj_path, '/') # object lets try finding the parent try: parent = self.restrictedTraverse(obj_path[:-1]) except KeyError: return 404 # lets check they are allowed to do this c = getSecurityManager().checkPermission allowed = 1 for perm in ['Delete objects', 'Import/Export objects']: if not c(perm, parent): allowed = 0 if not allowed: return 403 # if there is one there already, delete it if obj_path[-1] in parent.objectIds(): parent.manage_delObjects([obj_path[-1],]) # lets do it if add_in: # fake a file using StringIO file = StringIO() file.write(self._decode(data)) file.seek(0) # now import new = parent._p_jar.importFile(file) parent._setObject(new.getId(), new) # change modification time my_obj = self.restrictedTraverse(obj_path) my_obj._p_mtime = mod_time # yay! return 200 i tryed to change the modification time via the _p_mtime attribute (because bobobase_modification_time() returns it normally), but it doesn't work. I played around with it but there was no enlightenment. i guess its a secret of the ZODB. please help me to get on the right path. yours faithfully. Andreas Hoelzl

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PROPOSAL: ExplicitObjectReferences
by Casey Duncan 13 Jan '02

13 Jan '02

This is my general solution to many recurrent problems I have witnessed when developing in Zope both at a high and low level. I think it's a pretty important proposal (big surprise, I wrote it) that could have a profound affect on Zope development. Please give it a read and post your comments! http://dev.zope.org/Wikis/DevSite/Proposals/ExplicitObjectReferences Murky Buckets, Casey Duncan __________________________________________________ Do You Yahoo!? Send FREE video emails in Yahoo! Mail! http://promo.yahoo.com/videomail/

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Refresh Product with exUserFolder
by Gunther Klessinger 13 Jan '02

13 Jan '02

Hi, for adding a new auth source to the XUF and customize it a bit, it would be *very* nice to have zope's refresh product work with it. Has anybody managed to get both products work together (any version combination of zope/xuf/refresh) ? Thanx so much, Gunther

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Re: [ZPT] accessing object attributes from python expression raises error
by Michael R. Bernstein 11 Jan '02

11 Jan '02

On Tue, 2002-01-08 at 14:01, Evan Simpson wrote: > Michael R. Bernstein wrote: > > > > [snip stuff about accessing a browser_id_manager's > > meta_type from unrestricted code raising an > > unauthorized exception] > > > > Will this be fixed for 2.5 final? > > > That depends. We're currently waiting for feedback on 2.5b3. Depending > on how that goes, these changes may need to wait for 2.5.1. Perhaps I am under-estimating how difficult the fix is. I'm assuming that you simply need to add an appropriate security declaration to the BrowserIdManager class... Oh, wait... meta_type is an attribute, so you can't just do security.declareProtected(ACCESS_CONTENTS_PERM, 'meta_type') Hmm... The id attribute has the getId method, perhaps what's required is a getMetaType method that can be suitably protected? This would still be a pretty easy fix: security.declareProtected(ACCESS_CONTENTS_PERM, 'getMetaType') def getMetaType(self): """ """ return self.meta_type Am I missing something? Michael Bernstein.

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more problems.
by Andrew Sydelko 11 Jan '02

11 Jan '02

So, I thought I fixed my problems... But now I can't get to / or /manage_main again. Although I _can_ ftp in to see stuff. I don't understand the problem here... / returns 400 Bad Request /manage_main returns 404 Not Found --andy.

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Re: [Zope-dev] Re: [ZODB-Dev] Big problem.
by Andrew Sydelko 11 Jan '02

11 Jan '02

Chris McDonough wrote: > Make sure you try the "unscrew.py" thing I sent over before doing that... sitting here waiting for you response to my last email saying that didn't work, I realized I hadn't deleted the cache before restarting. So, now that that the cache is gone, I restarted it up and it now works. Phew! Ok. So I _really_ appreciate your help on this. (Someone ought to create a document on what I just went through.) My next question is: What is the best way to recreate a clean Data.fs from the one I have currently (I'm thinking your answer is going to use your zopebackup.py external method.) --andy.

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Re: [Zope-dev] Re: [ZODB-Dev] Big problem.
by Chris McDonough 11 Jan '02

11 Jan '02

Note that untarring the attached "products" into your 2.4 Products directory should allow you to start 2.4 up with the Data.fs from your foray into 2.5 without needing to truncate anything. At that point you should be able to delete the session_data_manager, temp_folder, and browser_id_manager objects and restart without the faux products. Andrew Sydelko wrote: > Chris McDonough wrote: > >>Darn. At this point you can try just hacking off bits of file at the >>end of a *copy* of the Data.fs you have by using the trunctate method >>described in Itamar's howto. Start small and just cut off pieces at the >>end of the file until you're able to start Zope again. You might lose >>some data this way but at least it will start. After you get it to >>start, and you've lost data, you can also use (painfully slow) binary >>search to pinpoint where exactly you need to truncate on further copies. >> >>I am working on preventing this on the 2.5 branch now. >> >>It's ironic that I got on Jeremy's case for something like this not too >>long ago. ;-) Mea culpa. >> > > Well, the plan for the night will be to bring the Data.fs up with 2.5.0b3 > and export a critical part of the database. This part will be brought up > on a separate 2.4.3 server. Then we will try to fix the problems we've > been having with 2.5.0b3... > > Any quick pointers on where I can find info on exporting part of the > database from the command line? Either thru a ZEO client (import Zope) > or some other method... > > --andy. >

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