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RE: [Support] Sybase 11.9.2 with Zope 2.2.0
by Brian Lloyd 03 Nov '00

03 Nov '00

> Error Type: AttributeError > Error Value: 'string' object has no attribute 'server' > > The error is raised because in the Sybase Adapter an attribute 'server' of > connection_string is accessed. > Looking at the 2.1.6 code of Connection.py I found two new lines, > which convert > connection_string into a real string. Commenting out these lines makes > everything work. But: IS THIS SAFE? connection_string is of type > ZPublisher.HTTPRequest.record before the str() conversion. Thanks for the report - I've checked in a fix for this for the next release. Brian Lloyd brian(a)digicool.com Software Engineer 540.371.6909 Digital Creations http://www.digicool.com

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python memory error on Windows NT
by Coi Giovanni 03 Nov '00

03 Nov '00

Hi, someone has never seen this kind of error on Windows NT 4.0 (last patch update) while executing IIS 4.0 + Zope 2.2.2? The panel say: python.exe The instruction at "0x1b271a1f" referenced memory at "0x00000000" The memory could not be "read" it hang python (and so Zope) until someone, looking at the server console, notice the panel, and click the (only) OK button. Afterthere python (re?)start using 90% CPU time for about 2 minuts and all goes ok (until next error). Can I remove this error? Or remove the popup of the error panel? How I can do? TIA G.C. _________________________________________________________ Prometeo srl - The Software Experience Coi Giovanni Voice : +39 (041)5701366 Via Giudecca 15 Fax : +39 (041)5701005 30035 MIRANO (VE) - ITALY e-mail: coi(a)prometeo.it http://www.prometeo.it

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BASEPATH
by Robin Becker 03 Nov '00

03 Nov '00

Can someone explain to me why the CVS version of Zope2 contains references to BASEPATH and the recently released 2.2.2 doesn't? Is this a new feature? -- Robin Becker

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Needed: tip iterative search of catalog indexes
by Joseph Schlesinger 03 Nov '00

03 Nov '00

Can anyone provide advice for iterating a search through all indexes in a catalog. E.g., determining whether 'foo' appears in any field of any of the indexed items. The python method reproduced below does the job, but it seems rather cumbersome. Is there a better way to do it in DTML? Thanks. --------------------------------------------- list = [index1, index2, ... ] return self.Catalog({list[0] : search_item}) for item in list[0:]: for result in self.Catalog({ item : search_item}): if not result in results: results.append(result) return results

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Sybase 11.9.2 with Zope 2.2.0
by Ralph Heinkel 03 Nov '00

03 Nov '00

Hi, I'm trying to run Sybase 11.9.2 with Zope 2.2.0. using SybaseDA2.0b2 Everything was fine with Zope 2.1.6 so far. But with this new version of Zope I get an error like (having commented out the try/except clause to catch it - traceback appended to this mail): Error Type: AttributeError Error Value: 'string' object has no attribute 'server' The error is raised because in the Sybase Adapter an attribute 'server' of connection_string is accessed. Looking at the 2.1.6 code of Connection.py I found two new lines, which convert connection_string into a real string. Commenting out these lines makes everything work. But: IS THIS SAFE? connection_string is of type ZPublisher.HTTPRequest.record before the str() conversion. manage_properties=HTMLFile('connectionEdit', globals()) def manage_edit(self, title, connection_string, check=None, REQUEST=None): """Change connection """ # title=str(title) <--- 'bad' lines # connection_string=str(connection_string) <--- 'bad' lines self.edit(title, connection_string, check) if REQUEST is not None: Any comments would be appreciated. -- ------------------------------------------------------------------ Ralph Heinkel Cenix Bioscience GmbH Director of the IT-Unit Tel : +49 6221/387 915 Meyerhofstr. 1 Fax : +49 6221/387 971 69117 Heidelberg, Germany eMail: heinkel(a)cenix-bioscience.com Traceback (innermost last): File /opt/src/Zope-2.2.0-src/lib/python/ZPublisher/Publish.py, line 222, in publish_module File /opt/src/Zope-2.2.0-src/lib/python/ZPublisher/Publish.py, line 187, in publish File /opt/src/Zope-2.2.0-src/lib/python/Zope/__init__.py, line 221, in zpublisher_exception_hook (Object: RoleManager) File /opt/src/Zope-2.2.0-src/lib/python/ZPublisher/Publish.py, line 171, in publish File /opt/src/Zope-2.2.0-src/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: manage_edit) File /opt/src/Zope-2.2.0-src/lib/python/ZPublisher/Publish.py, line 112, in call_object (Object: manage_edit) File /opt/src/Zope-2.2.0-src/lib/python/Shared/DC/ZRDB/Connection.py, line 168, in manage_edit (Object: RoleManager) File /opt/src/Zope-2.2.0-src/lib/python/Shared/DC/ZRDB/Connection.py, line 160, in edit (Object: RoleManager) File /opt/src/Zope-2.2.0-src/lib/python/Shared/DC/ZRDB/Connection.py, line 231, in connect (Object: RoleManager) File /opt/src/Zope-2.2.0-src/lib/python/Products/SybaseDAv2/db.py, line 135, in __init__ AttributeError: (see above)

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pluggable brains - namespace blues
by Philipp Auersperg 03 Nov '00

03 Nov '00

I have a problem with pluggable brains: 1. Given is a ZClass named 'Merchant' that maps to a SQL table 'Merchant' with the columns 'ID' and 'name'. 2. I the ZClass I defined a Python method 'getName' with the body: return self.name 3. I have a SQL Method with "select * from merchant" that I bind to the brain class 'Merchant' 4. I define a Python method with the following body: -------------------------------- rs=self.Merchants() return rs[0].name -------------------------------- And now the problems: That works fine, but when I want to access the Merchant's name through the its member function getName() with the following code: -------------------------------- rs=self.Merchants() return rs[0].getName() -------------------------------- then I get an AttributeError mentioning that 'name' cannot be found. when I change the getName() Python method to: return 42 it works! It seems that the namespace is somehow shreddered, I have to dig into that but if anybody can help it would spare much time! So finally my desperate question: How can I solve/workaround that problem to call methods in pluggable brains that access database-based members from a python method? thanks in advance phil

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Re: [Zope-dev] Question: How can instatiate a Zclass from python.
by Martin Grönemeyer 03 Nov '00

03 Nov '00

At 13:30 02.11.00 +0200, you wrote: >I am creating an external method in python and I want to add a product (in >that method) which is a Zclass (only, it doesn't exists in the >lib/python/Products directory). How can I instatiate this object and how >can I overide the name error that will occur (because I haven't import >anything)? > I think for a quick work'a'round you could use this snippet. If you are using an external method pass the self explizitly to your method, e.g. <dtml-call "getNewZClass(this(),otherParameter)">. In your method you have to define the self as first argument. self.aq_acquire('Control_Panel').Products.NameOfYourZClassProduct.NameOfYour ZClass(Instance-Parameter) Good luck. i.A. Martin Grönemeyer Technik || | || c o m.u n i t G m b H ||| | | || | | | | | | | | http://www.comunit.de/ <mailto:martin@comunit.de> Eiffestr. 598 20537 Hamburg | Germany Fon +49 +40 | 21 11 05 25 Fax +49 +40 | 21 11 05 26

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ZCLass help
by Veiko Schnabel 03 Nov '00

03 Nov '00

problem: i created a new Product calles book with propertys writer(string), pages(int) and a standart method called index_html to output all these probertys no problem until that next i created in a subfolder an instance of my book-product calles my_book to get all propertys og my_book i used http:://www.mydomain.com/subfolder/my_book an got in a format, defined in method index_html, all these propertys (artist/pages) still not the problem next i created a DTML Document (test_output) in my subfolder with these content <dtml-var standard_html_header> <h2><dtml-var title_or_id></h2> <p> new Book : <dtml-var my_book> </p> <dtml-var standard_html_footer> http:://www.mydomain.com/subfolder/test_output all i get is the id of the instance my_book <PubClass instance at 8ab30c8> and this is the problem i would like to see there the output of that method index_html could someone help me please,please,please

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zwiki 0.7.0 bugfix
by Simon Michael 03 Nov '00

03 Nov '00

this should resolve a problem with the recent release. From http://zwiki.org/FrontPageNews: "The original (pre-0.7.0) problem was this: in dtml modes, initial lines containing : followed by a blank line were not rendered (because they were considered to be http headers). The symptoms of my interim fix in 0.7.0 are this: ^M's appear at the beginning of pages and blank lines sometimes get eaten. I think I have a suitably ugly workaround now. It's running here and available in http://zwiki.org/zwikidir/releases/ZWiki-0.7.1rc3.tgz, please try it out."

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another debugging howto, and a question
by Simon Michael 03 Nov '00

03 Nov '00

Here are some draft howto-like things some might find helpful (improvements welcome) : http://zwiki.org/ZopeDebuggingRoadmap http://zwiki.org/HowToDebugZopeInEmacs and a burning question: how can I invoke zserver such that I will get the interactive debug prompt ? I'd like to have my breakpoints trigger when I access the server in the normal way with a web browser, poke around, let it run on and do it again. I was able to do this in the past and it's useful. Many thanks! -Simon

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