[Zope-dev] AttributeError
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 ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
[Zope-dev] SkinScripts instantiating new objects
Hi,
I want my SkinScript to instantiate a new object of type ProjektHandler
and put it into an attribute called projekt. For this I have created
an external method, returning a new object of type ProjektHandler (simplified):
def getNewProjektHandler(self, parentId, parentClass):
h = ProjektHandler()
return h
The skinscript look like this:
WITH self.getNewProjektHandler(self.id, 'Projektagare') COMPUTE projekt=RESULT
This works if I call it from python, e. g
print self.mySpecialist.getItem('foo').projekt
But it does not work when I call it from the web, e. g
http://server/mySpecialist/foo/projekt (see the traceback from the log file below)
Has anyone an idea why this doesn't work?
Zope 2.3.0b2
ZPatterns 0.4.3b1
/Stefan Karlsson
--
2001-02-16T11:28:35 PROBLEM(100) ZPatterns Error computing attribute projekt
Traceback (innermost last):
File /home/stefan/myzope/zope2/lib/python/Products/ZPatterns/AttributeProviders.py,
line 311, in _
AttributeFor
(Object: GAPMixin)
File Products/ZPatterns/Expressions.py, line 122, in eval
File DocumentTemplate/DT_Util.py, line 336, in eval
(Object: self . getNewProjektHandler ( self . id , 'Projektagare' ))
(Info: self)
File string, line 0, in ?
File DocumentTemplate/DT_Util.py, line 140, in careful_getattr
AttributeError: getNewProjektHandler
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Re: [Zope-dev] LONGing for normal integers... the sequal
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:
(['E5M=', []], {'childless_decoration': '', 'id': 'search_id',
'branches_expr': method Eval.eval of Eval instance at 0x899ea4c, 'url': 'tpURL'},
(['E5M=', []],), (['E5M=', []],)))
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 E5M 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)
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[Zope-dev] crazy idea?
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? ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Problem upgrading to Zope2.3
"Jay, Dylan" wrote: 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 ... 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? Try this: (1) Upgrade to 2.3.1 beta 1 (released yesterday). There's an relevant note in the changelog: "Hardened ZMI contents view against subobjects w/ flaky 'get_size' (Collector #1900)" (2) If that doesn't work, temporarily reinstall PythonMethod and report back so we can fix the bug. Shane ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
[Zope-dev] The structure of lib/python/*
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? ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Zope 2.2.4 Dying
Andre Schubert wrote: Hi, since the last time i had some problems with my zope server. The zope 2.2.4 running under linux dies unexpectly with the following messages. 2001-02-16T01:50:08 ERROR(200) zdaemon zdaemon: Fri Feb 16 02:50:08 2001: Aiieee! 5451 exited with error code: 13 -- 2001-02-16T02:29:38 ERROR(200) zdaemon zdaemon: Fri Feb 16 03:29:38 2001: Aiieee! 10313 exited with error code: 13 What does the error code 13 say and could anyone help me to solve the problem Hmm, according to "kill -l", code 13 is "SIGPIPE". What's your setup? Shane ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] SkinScripts instantiating new objects
At 14:31 2001-02-16, Steve Alexander wrote:
Stefan Karlsson wrote:
Hi,
I want my SkinScript to instantiate a new object of type
ProjektHandler and put it into an attribute called projekt.
In your example, there is no sense of the ProjektHandler instance being
saved persistently in the attribute. A new object is created for each
transaction. Is this what you want?
Yes, that was my intention.
BTW is it possible to save the ProjektHandler instance persistently
in the attribute? Is there an easier way than creating a separate
specialist for the ProjektHandler class and storing the instances there?
For this I have created
an external method, returning a new object of type ProjektHandler
Where have you put this external method? That is, where in the ZODB?
I have put it in the rack, the specialist and higher up in the hierarchy.
Makes no difference.
The skinscript look like this:
WITH self.getNewProjektHandler(self.id, 'Projektagare')
COMPUTE projekt=RESULT
This works if I call it from python, e. g print
self.mySpecialist.getItem('foo').projekt
But it does not work when I call it from the web, e. g
http://server/mySpecialist/foo/projekt
That's as I expect. Generally, you call methods from URLs, you don't
retrieve the values of attributes.
So, what do you suggest, should I implement __bobo_traverse__ or
something in foo to make the URL work?
/Stefan Karlsson
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RE: [Zope-dev] Import Libraries into Python Script
What's wrong with:
import imaplib
imaplib.__allow_access_to_unprotected_subobjects__ = 1
Nothing is wrong with it per se - but using the SecurityInfo
interfaces (even indirectly through the helper stuff I checked
in to PythonScripts for 2.3.1) is more future-proof, in case
the actual mechanics of protection change one day.
And, if the above is somehow bad or insecure, how would you use your
method to allow access to specific methods in a module, as in:
import re
re.__allow_access_to_unprotected_subobjects__ = {
'sub': 1,
}
You can see a minimal example in the standard.py module in
the PythonScripts package (though there is no helper shortcut
for that method yet - there probably should be).
Brian Lloyd[EMAIL PROTECTED]
Software Engineer 540.371.6909
Digital Creations http://www.digicool.com
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Re: [Zope-dev] AttributeError
Hi Alex, i have the following Products installed, and i don't use External Methods ExternalMethod (Installed product ExternalMethod (External Method-1-0-0)) Hotfix_2000-12-08 (Installed product Hotfix_2000-12-08) Hotfix_2000-12-15a (Installed product Hotfix_2000-12-15a) Hotfix_2000-12-18 (Installed product Hotfix_2000-12-18) MIMETools (Installed product MIMETools) MailHost (Installed product MailHost (MailHost-1-2-0)) OFSP (Installed product OFSP (OFSP-1-0-0)) SiteAccess (Installed product SiteAccess (SiteAccess-2-0-0)) ZCatalog (Installed product ZCatalog (ZCatalog-2-2-0)) ZGadflyDA (Installed product ZGadflyDA) ZMySQLDA (Installed product ZMySQLDA (ZMySQLDA-1-1-4)) ZPyGreSQLDA (Installed product ZPyGreSQLDA (ZPyGreSQLDA-0-0-3)) ZRTChat (Installed product ZRTChat) ZSQLMethods (Installed product ZSQLMethods) ZopeTutorial (Installed product ZopeTutorial (Zope Tutorial 1.0)) mysqlUserFolder (Installed product mysqlUserFolder (mysqlUserFolder-0.5.2)) as Steve Alexander schrieb: Andre Schubert wrote: 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 ?? Andre, What products do you have in your Zope installation? Are you using any External methods? This sounds like something has written something to the ZODB that shouldn't be written there. -- Steve Alexander Software Engineer Cat-Box limited http://www.cat-box.net ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope ) ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Zope 2.2.4 Dying
Hi, I'am using Zope 2.2.4 with the required patches. Python 1.5.2 Immunix 6.2 (redhat) - Production System - with apache-1.3.14-2.6.2 under a Named Virtual Host Zope is running with Zope.cgi as Shane Hathaway schrieb: Andre Schubert wrote: Hi, since the last time i had some problems with my zope server. The zope 2.2.4 running under linux dies unexpectly with the following messages. 2001-02-16T01:50:08 ERROR(200) zdaemon zdaemon: Fri Feb 16 02:50:08 2001: Aiieee! 5451 exited with error code: 13 -- 2001-02-16T02:29:38 ERROR(200) zdaemon zdaemon: Fri Feb 16 03:29:38 2001: Aiieee! 10313 exited with error code: 13 What does the error code 13 say and could anyone help me to solve the problem Hmm, according to "kill -l", code 13 is "SIGPIPE". What's your setup? Shane ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
[Zope-dev] Using Zope for Groupware/Messaging applications
Hi! We are currently developing a groupware system with Zope. As usual, the options for the storage back-end are using a SQL DB (postgres, ...) or ZODB. I know that this question has been asked a thousand times. But I'll repeat it for our specific situation: SQL or ZODB+ZCatalog, which one is better? We have thousands, maybe millions of objects (mainly mail messages, notes, appointments). There should be very flexible views on the data, e.g. a message or document can either be viewed on the owner's personal workspace or on the project portal the document was posted to. The problems with SQL: - much more complex setup - problems with using ZEO - BLOBs (large binary objects like image files) don't work well on most databases The problems with ZODB/ZCatalog: - ZCatalog is not tested for extremly large numbers of objects. We fear that the index tables will become much too big - Some advanced queries are very hard to implement using ZCatalog Any comments? Joachim. ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Using Zope for Groupware/Messaging applications
On Sat, 17 Feb 2001, Joachim Werner wrote: SQL or ZODB+ZCatalog, which one is better? Any comments? Just the obvious one: ZPatterns. grin. --RDM ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Import Libraries into Python Script
Itai Tavor wrote: What's wrong with: import imaplib ^ That's the line that barfs... imaplib.__allow_access_to_unprotected_subobjects__ = 1 ...so this one never gets executed ;-) cheers, Chris ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Calling Catalog from python script
On Fri, 16 Feb 2001, R. David Murray wrote: Howevever, I'm still getting 'None' as the result. If I print out, say, catent.id, I see the correct ID for the object I'm trying to retrieve. It doesn't make sense that this is failing. I must be doing something stupid but I still can't see it. I tried calling getObject both with and without REQUEST as a parameter, with the same result. I guess it's time for some more source spelunking. And the expedition was a qualified success. It turns out that getObject has one of those nasty unadorned try: except: structures in it. It was masking an authorization error. The auth error is occuring in urestrictedTraverse, and the last lines of my traceback are: File /usr/local/zope/Zope230/lib/python/OFS/Traversable.py, line 190, in unrestr ictedTraverse (Object: ApplicationDefaultPermissions) Unauthorized: 0060175400 0060175400 is the ID of the first object returned by the catalog. Any guesses why this is happening? I get the same result whether I'm anonymous or logged in as a manager. Also, anyone want to guess why getObject uses try/except? I can't off the top of my head think of any reason it should be there. This is 2.3.0, I suppose I should try the new beta just for kicks... --RDM ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Using Zope for Groupware/Messaging applications
Let me be a bit less cryptic. Design your system, and use ZPatterns, and you can defer questions about which storage suits the parts of the app until later, and can change your mind at need. For the kind of project you are embarking upon, the time needed to learn ZPatterns is well worth it. --RDM ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Calling Catalog from python script
On Fri, 16 Feb 2001, Steve Alexander wrote: This is 2.3.0, I suppose I should try the new beta just for kicks... Yes, do try the new beta. If this is what I think it is, it is fixed in the latest 2.3, as I submitted the patch that fixed it :-) Are your objects traversed to through an object that does __bobo_traverse__ -- like a ZPatterns Specialist, for example? Yes, the items come out of a Specialist. However, upgrading to 2.3.1b1 did not solve the problem. I don't see any changes to getObject. The patch to ZCatalog brains makes it fall back on resolve_url, which works just fine. So I changed getObject to wrap the try/except around only the restrictedTraverse call and moved the call to resovle_url outside that, and that seems to have fixed the problem. Thanks, Steve! You might want to look to see where your patch went, though wry grin. --RDM ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Using Zope for Groupware/Messaging applications
"R. David Murray" wrote: Let me be a bit less cryptic. Design your system, and use ZPatterns, and you can defer questions about which storage suits the parts of the app until later, and can change your mind at need. For the kind of project you are embarking upon, the time needed to learn ZPatterns is well worth it. --RDM I concur. It would be best to abstract the storage. Using this technique you could scale the underlying storage theoretically without changing the top level code. That would also facilitate more experimentation on which scheme or combination of schemes would work best. -- | Casey Duncan | Kaivo, Inc. | [EMAIL PROTECTED] `-- ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
[Zope-dev] Need Zope 2.3 Binary for Python 2.0 under Win32
I need a Zope 2.3 Binary that is running under Python 2.0 (not 1.5.2) for Win32 environment. I have been trying to compile one myself, but there are lot's of road blocks. If any of you have one that you already built, could you email it to me? TIA, Tim Lakey CTO, CarbonWave [EMAIL PROTECTED] ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
[Zope-dev] AttributeError validate using the Visitor pattern
OK, having helped me figure out how to work around the bug in accessing ZPatterns objects from a catalog, I've got a new challenge for you all. Now that I've got my list of objects, I want to generate a web page displaying them. The page has the structure of a series of table rows. Inside each row data about a single object is displayed, using a common format but with certain differences depending on the type of object. To implement this, I am trying to use the Visitor pattern from the Gang of Four book. So, I have a Folder displayItemList. This folder contains (at the moment) three methods: displayTable, visitAuthor, and visitBook. displayTable generates the html for the outer table, down to the tr/tr tags. Between those tags, it calls dtml-var "accept(me)", where me is this() for the displayTable method, and accept is a pythonscript method defined on each of the object type's Specialist. Each accept method is of the form: return visitor.visitBook(None,_,item=context) with _ bound to namespace on the bindings tab and 'visitor' being listed in the arguments line. visitBook begins with the line: dtml-with item Trying to display my list, I get an AttributeError on 'validate', and ZDebug flags the 'with' line as the error location. validate appears nowhere in my code, so from all I can figure from a certain amount of inspection of the source, Zope is looking for this method on the DTMLMethod and not finding it. ZDebug says the namespace stack consists of a single entry, which looks like the DTMLMethod itself (visitBook, presumably). Seems to me the namespace stack should be deeper than that. I've been poking at this for a couple hours now without making any more progress, so I'm going to quit for the day and come back to it tomorrow. If anybody has any bright ideas, or sees something obvious I'm doing wrong, please clue me in. Thanks! By the way, I also tried making accept be visitor.visitBook(context,_), but that produced the same error and ZDebug could only point to the call to accept as the error location. --RDM ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
