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xmlrpc error handling
by Kevin 11 Apr '07

11 Apr '07

In order to avoid zodb implosion, is it sufficient to raise an xmlrpclib Fault object from a method where some validation was not successful? Will zope abort transactions and avoid an other avoidable bad things from happening? Do I have to use fault or can I raise just any error an ZPublisher.xmlrpc will marshall it into <fault></fault>? from xmlrpclib import Fault SomeClass(SimpleItem): ... def myMethod(self,stuff=[]): if type(stuff) != list: f=Fault f(27,"stuff must be a list") raise f else: print stuff Thanks, Kevin

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Simple ZODB Search and Edit
by Peppe Top 11 Apr '07

11 Apr '07

Hi all, I'm new to Zope and I'm reading through a few tutorials and the Zope book. I need to do a text string search on a ZODB and I need to know which objects contain the string. Example: I have a site running up, and I need to know where my mail is mentioned, so I can edit each object and update the mail. (I think using ZMI) >From the documentation I think that ZCatalog might do the trick, but I'm not sure it's the easier solution. Am I on the right path? Can you get me started? I just need a fixed string search, returning the name (maybe the path too) of the object inside the ZODB, so I can later edit. Is ZMI the right tool to do simple editing? Also is ZCatalog already included in Zope, or do I need to install it? Thanks a lot for your time -- Peppe

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Access to list items with path expression
by Garito 11 Apr '07

11 Apr '07

Hi! Is there any way to access to some list index with TALES expression? I would like to use something like here/list/0 or here/list/int:0 Is this possible? Thanks! -- Mis Cosas http://blogs.sistes.net/Garito

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Z Search Interface returns numbers
by Peppe Top 11 Apr '07

11 Apr '07

I've diligently followed the tutorial about searching in the Zope book: http://www.zope.org/Documentation/Books/ZopeBook/2_6Edition/SearchingZCatal… You basically: - create a ZCatalog object - create a Lexicon and an Index - finding objects and cataloging them - create a web interface (with Z Search Interface) to search the ZCatalog. When I search something in the SearchForm (via the "test" tab) I just get numbers. I mean the ReportForm correctly reports the objects containing the searched string, but lists handles (I guess). Is this normal? What can I do in order to get something like: /Zoo/Serpents /Zoo/Reptiles (the above are imaginary DTML documents matching the search criteria, and their path to ZODB root) instead of: 4567489 4567480 ??? Thanks a lot -- Peppe (Plone 2.1.2, Zope 2.8.7, Python 2.3.5, Red Hat Linux)

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ZEO clients going zombie
by Bengt Giger 10 Apr '07

10 Apr '07

Hi with our new ZEO client systems, we frequently observe this problem: a ZEO process starts to use 100% CPU time (user) without a significant increase of requests. Sometimes (but not always) the process stops answering requests, still using 100% CPU. When we kill such a process, it changes to zombie state (shown in top as 'Z' and '<defunct>'), still using 100% CPU, but now its system time, not user. The HTTP port is still in use, so we have to reboot this node to restart the ZEO client. This usually fails because some filesystems cannot be unmouted, there are still files locked. I tried both start modes, runzope and zopectl, but no difference. All that is in opposition of what I know about zombie processes, they should use no CPU time. Versions are: RedHat RHEL4, Kernel 2.6.9-42.0.10.ELsmp, with address extension (16 GB RAM) Python 2.3.6 Zope 2.8.8 The older cluster nodes work perfectly, no such zombie problem ever (connected to the same storage server); they run on Debian Sarge, Kernel 2.4.27 SMP Any hint is appreciated Regards Bengt

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localfs weirdness
by pol 10 Apr '07

10 Apr '07

<posted & mailed> I have just installed localfs (and fixed according to http://www.zope.org/Members/aeg/LocalFS_1_3_andreas/talkback/1151975084) The local directory having been assigned, i have tried to have a look to a few sub-dirs Here is my weird result: - Some sub-dirs containing a 'y' in their name give rise to the enclosed error message. In my case, sub-dir 'physis' cannot be accessed. - Sub-dirs named 'society' or 'system' can be accessed, apparently with no errors. Any hints? How to fix that? Thank you -- Pol Enc 1 -- the error message An error was encountered while publishing this resource. Error Type: ValueError Error Value: unsupported format character 'Y' (0x59) at index 1 Troubleshooting Suggestions The URL may be incorrect. The parameters passed to this resource may be incorrect. A resource that this resource relies on may be encountering an error. For more detailed information about the error, please refer to the error log. If the error persists please contact the site maintainer. Thank you for your patience. Enc. 2 -- zope set up Zope Version (Zope 2.9.5-final, python 2.4.4, linux2) Python Version 2.4.4c1 (#2, Oct 11 2006, 21:51:02) [GCC 4.1.2 20060928 (prerelease) (Ubuntu 4.1.1-13ubuntu5)] System Platform linux2 SOFTWARE_HOME /usr/lib/zope2.9/lib/python ZOPE_HOME /usr/lib/zope2.9 INSTANCE_HOME /var/lib/zope2.9/instance/my_instance CLIENT_HOME /var/lib/zope2.9/instance/my_instance/var Network Services ZServer.HTTPServer.zhttp_server (Port: 9673) -----

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Simple ZODB Search and Edit
by Peppe Top 10 Apr '07

10 Apr '07

Hi all, I'm new to Zope and I'm reading through a few tutorials and the Zope book. I need to do a text string search on a ZODB and I need to know which objects contain the string. Example: I have a site running up, and I need to know where my mail is mentioned, so I can edit each object and update the mail. (I think using ZMI) >From the documentation I think that ZCatalog might do the trick, but I'm not sure it's the easier solution. Am I on the right path? Can you get me started? I just need a fixed string search, returning the name (maybe the path too) of the object inside the ZODB, so I can later edit. Is ZMI the right tool to do simple editing? Also is ZCatalog already included in Zope, or do I need to install it? Thanks a lot for your time -- Peppe

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what if the query gives no records?
by siva k 10 Apr '07

10 Apr '07

Hi, A very basic question: a dtml-in loop calls an zsql method it works fine when there is data but when there is no data it should display no records found. But it displays nothing when there are no records. Please suggest a soultion <dtml-in "select_something(parameter=parameter ,parameter1=parameter1)"> <dtml-if "_['sequence-start']==_['sequence-end']"> no records found <dtml-else> <dtml-var fieldname> </dtml-if> </dtml-in> thanks, _________________________________________________________________ Express yourself instantly with MSN Messenger! Download today it's FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/

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Product function with extension
by Garito 09 Apr '07

09 Apr '07

Hi!! I have a method in my product called freemind wich generate the xml to the freemind applet but on this applet is mandatory to use the .mm extension Is possible to create a product function with extension? (in this case will be something like freemind.mm) Thanks -- Mis Cosas http://blogs.sistes.net/Garito

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ImportError: No module named cPersistence when creating new instance
by michael nt milne 05 Apr '07

05 Apr '07

Hi I'm getting this when running ./zopectl after creating a new instance. This was simply using the /utilities/mkzopeinstance.py script from within the main zope directory and running the system python on it. The original instance works fine but not the new one. Any ideas? File "/home/zopesinstance/Zope-2.9.3-src/lib/python/Zope2/Startup/zopectl.py", line 308, in ? main() File "/home/zopesinstance/Zope-2.9.3-src/lib/python/Zope2/Startup/zopectl.py", line 274, in main options.realize(args) File "/home/zopesinstance/Zope-2.9.3-src/lib/python/Zope2/Startup/zopectl.py", line 91, in realize ZDOptions.realize(self, *args, **kw) File "/home/zopesinstance/Zope-2.9.3-src/lib/python/zdaemon/zdoptions.py", line 273, in realize self.load_schema() File "/home/zopesinstance/Zope-2.9.3-src/lib/python/zdaemon/zdoptions.py", line 321, in load_schema self.schema = ZConfig.loadSchema(self.schemafile) File "/home/zopesinstance/Zope-2.9.3-src/lib/python/ZConfig/loader.py", line 31, in loadSchema return SchemaLoader().loadURL(url) File "/home/zopesinstance/Zope-2.9.3-src/lib/python/ZConfig/loader.py", line 65, in loadURL return self.loadResource(r) File "/home/zopesinstance/Zope-2.9.3-src/lib/python/ZConfig/loader.py", line 159, in loadResource schema = ZConfig.schema.parseResource(resource, self) File "/home/zopesinstance/Zope-2.9.3-src/lib/python/ZConfig/schema.py", line 27, in parseResource xml.sax.parse(resource.file, parser) File "/usr/local/lib/python2.3/xml/sax/__init__.py", line 33, in parse parser.parse(source) File "/usr/local/lib/python2.3/xml/sax/expatreader.py", line 107, in parse xmlreader.IncrementalParser.parse(self, source) File "/usr/local/lib/python2.3/xml/sax/xmlreader.py", line 123, in parse self.feed(buffer) File "/usr/local/lib/python2.3/xml/sax/expatreader.py", line 207, in feed self._parser.Parse(data, isFinal) File "/usr/local/lib/python2.3/xml/sax/expatreader.py", line 300, in start_element self._cont_handler.startElement(name, AttributesImpl(attrs)) File "/home/zopesinstance/Zope-2.9.3-src/lib/python/ZConfig/schema.py", line 99, in startElement getattr(self, "start_" + name)(attrs) File "/home/zopesinstance/Zope-2.9.3-src/lib/python/ZConfig/schema.py", line 475, in start_schema keytype, valuetype, datatype = self.get_sect_typeinfo(attrs) File "/home/zopesinstance/Zope-2.9.3-src/lib/python/ZConfig/schema.py", line 201, in get_sect_typeinfo datatype = self.get_datatype(attrs, "datatype", "null", base) File "/home/zopesinstance/Zope-2.9.3-src/lib/python/ZConfig/schema.py", line 194, in get_datatype return self._registry.get(dtname) File "/home/zopesinstance/Zope-2.9.3-src/lib/python/ZConfig/datatypes.py", line 398, in get t = self.search(name) File "/home/zopesinstance/Zope-2.9.3-src/lib/python/ZConfig/datatypes.py", line 423, in search package = __import__(n, g, g, component) File "/home/zopesinstance/Zope-2.9.3-src/lib/python/Zope2/Startup/datatypes.py", line 20, in ? from ZODB.config import ZODBDatabase File "/home/zopesinstance/Zope-2.9.3-src/lib/python/ZODB/__init__.py", line 21, in ? from persistent import TimeStamp File "/home/zopesinstance/Zope-2.9.3-src/lib/python/persistent/__init__.py", line 19, in ? from cPersistence import Persistent, GHOST, UPTODATE, CHANGED, STICKY ImportError: No module named cPersistence -- michael

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