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Z SQL Methods appear broken in 2.4.x
by joe＠silverwolf.com 28 Sep '01

28 Sep '01

It appears that Z SQL Methods are broken in 2.4.x. Specifically, the type=string in a <dtml-sqlvar> is broken - a simple ZSQL query such as: select id, cost, name from choices where name = <dtml-sqlvar nam type=string> results in the following error: exceptions.NameError: global name 'string' is not defined It's broken on 2.4.0 and 2.4.1, and works fine on 2.2.5, 2.3.0, and 2.3.2 - in fact, it's in production on our 2.2.5. Integer parameters work fine. It's hard to believe that no one else has run into this, and that the stable 2.4.x branch has gotten this far without anyone noticing this - I've even tried it on 2 different servers running Zope 2.4 (2.4.1 on FreeBSD 4.0, our production web server, and 2.4.0 on FreeBSD 4.3, our dev server) Any ideas? Regards, joe Joseph J Wolff eRacks Open Source Rackmount Systems www.eracks.com joe(a)eracks.com

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Zope 2.5: User limit for Local Security Role assignment list
by Matthew T. Kromer 28 Sep '01

28 Sep '01

One of the things Zope 2.5 is going to do is limit the answers that are available from a user folder when presenting the local role dialog; this will prevent humongous lists from displaying and instead show a simple text box where a user ID can be typed. However, for existing user folders, this poses a question of: what's the reasonable number of users to list without having to go adjust a property on the folder? The revised implementation will let you tune how many users to display before putting up an input box; but currently I've just defaulted it to 'old behavior' -- ie show all the possible users. Maybe a better thing to do would be to define a default of 250 or so. This would probably be large enough to not impact most sites, yet small enough to make it meaningful for those sites that do have enormous user folders. It is also worth pointing out that local role assignment code doesn't enforce that the users for whom it has local roles exist in any current database; it is possible to grant rights to nonexistent users. Before the ability to enter a name in directly was available, you would have had to explicitly change the form values manually -- but this exposes the problem. I dont think it poses a problem (ie I dont believe Zope has ever tried to define a mechanism whereby objects are notified that a user for whom they have permissions has been deleted.)

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testing types in PythonScripts
by Steve Alexander 28 Sep '01

28 Sep '01

I have a variable, f. The value of f might be a list, or it might be a string. I want to do different things to f depending what type it is. How do I check its type from a PythonScript? I can't use type(), as this opens up a security hole with Extension Classes, where the type is the class. I can't import types, as that seems to be restricted. I suggest that either one or both of the following be altered: * The types module is allowed to be imported into restricted stuff. * A safe version of type() is put into the restricted global namespace. I seem to recall a discussion of this a few months ago, where someone (Evan?) proposed a safe version of type(). I guess this got lost in the conversion to RestrictedPython with Zope 2.4. Oh yeah... an ugly workaround is to try to append to f and see if you get and AttributeError. -- Steve Alexander Software Engineer Cat-Box limited

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python 2 Win32 binary for LocalFS
by kent sin 28 Sep '01

28 Sep '01

Does anyone have the win32wnet.pyd work with python2? Can someone upgrade the localfs product? Or are there better replacement available? Rgs, Kent Sin __________________________________________________ Do You Yahoo!? Listen to your Yahoo! Mail messages from any phone. http://phone.yahoo.com

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SV: [Zope-dev] Web Services for Zope
by Magnus Heino (Rivermen) 28 Sep '01

28 Sep '01

> Well... the status is that I'm trying to work on it on an > as-possible basis :) The problem is that it hasn't been very > possible for the last few weeks. > > If you just need to generate WSDL and you're willing to live > on the bleeding edge and use some code that might still change > a lot in the future to get the job done, let me know and I'll > be happy to send you a snapshot of what I have... Why don't you put into the public CVS instead? /Magnus

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Zope Dying
by Andre Schubert 27 Sep '01

27 Sep '01

Hi, Yesterday our Zope(2.2.5) on redhat 6.2 immunix was dying 3-4 times in about 2 hours. There are nothing to report in all the logs zope can produce. But is there a way that zope makes a core dump when he is dying unexpectly? as

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[Bug&Patch] "range" searches for "FieldIndexes" fail
by Dieter Maurer 27 Sep '01

27 Sep '01

.... affected "Zope 2.4.1 and Zope CVS (from about 1 1/2 weeks ago). Patch attached. Dieter --- PluginIndexes/common/UnIndex.py~ Fri Jun 1 20:53:40 2001 +++ PluginIndexes/common/UnIndex.py Thu Sep 27 19:09:30 2001 @@ -399,6 +399,7 @@ if record.get('range',None): opr = "range" opr_args = [] + range= record.get('range') if range.find("min")>-1: opr_args.append("min") if range.find("max")>-1: opr_args.append("max")

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Re: [Zope-dev] zcatalog and versions
by Oliver Bleutgen 27 Sep '01

27 Sep '01

Thanks for the fast reply Casey. Casey Duncan wrote: > On Thursday 27 September 2001 12:48 pm, Oliver Bleutgen allegedly wrote: >> Hi, >> I'm resending this to zope-dev because on zope >> nobody answered, it would be very nice if someone >> could step up with a small hint. >> >> >> >> Can somenone briefly explain what exactly gets >> locked in zope 2.3.3's catalog when it tries to >> index an object which is hold in a version? >> The whole catalog? > Any Btree buckets (in the indexes) which get changed get locked, which can > effectively lock out other changes to the catalog. This is a limitation of > the way the indexes are implemented, for which, sadly, there is no easy > fix. >> >> I found some answers which indicate that it has >> to do with the catalog when we see version lock errors >> where there shouldn't be any (from a naive POV). >> I would like to know how far reaching these problems >> are, because I'm currently rewriting an application, >> and I might be able to work around that. > I would suggest that if any objects are reindexed in a version, that no > cataloged objects should be reindexed in any other version until that > version > is saved. I hope I understand you correctly, but I'd say that if there's already a locked bucket, I've lost. There's no guarantee how long this particular version will stay uncommitted. I would also have to check anyhow whether there is a lock somewhere in the catalog's index. > You could also get around that by deferring the indexing until the version > is > commited, but this will take some coding on your part. This seems easier - if I'm a little bit lax about when the indexing occurs. Like making the object only index/reindex/unindex itself if it's not in a version, and combining that with a nightly cronjob which reindexes all (non-versioned) documents. With "some coding on your part" you mean making Version.py more intelligent? Like instead of just doing commitVersion(s,'') doing the following: 1) search for objects which have been deleted in the version 2) search for objects which want to catalog themselves and are locked in version s 3) unindex the objects found in 1) 4) commit version 5) index/reindex objects found in 2) Where it's not clear to me how to prevent that 3) and 5) will not itself get versioned. > Ultimately I think > that ZCatalog should do this for you, or at least somehow let indexes have > concurrent versioning (any volunteers?) I should say that I really don't grasp this ZODB voodoo, but I suspect that this will also be not too easy. AFAIK, the decision to write "in" a version (and in which) is taken deep down in zope's innards. > I am thinking about writing a fishbowl proposal for ZCatalog upgrades > sometime next month, and this is one potential problem areas to address > there, especially as things like the CMF make it more ubiquitous If I don't misunderstand how versions work (not unlikely), it might be necessary in the end rather to improve versions than the zcatalog in order to remedy this specific problem. thanks again, oliver

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zcatalog and versions
by Oliver Bleutgen 27 Sep '01

27 Sep '01

Hi, I'm resending this to zope-dev because on zope nobody answered, it would be very nice if someone could step up with a small hint. Can somenone briefly explain what exactly gets locked in zope 2.3.3's catalog when it tries to index an object which is hold in a version? The whole catalog? I found some answers which indicate that it has to do with the catalog when we see version lock errors where there shouldn't be any (from a naive POV). I would like to know how far reaching these problems are, because I'm currently rewriting an application, and I might be able to work around that. Do these problems still persist in zope 2.4.x? cheers, oliver

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27 Sep '01

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