November 2007 - Zope

Disable access for class method with HTTP GET
by Nicolas Perrier - Zindep 09 Nov '07

09 Nov '07

Hi, For security reasons, i need to disable access on class method with HTTP GET requests on my zope. For example, i can accept things like http://examplesite.com/object/aPythonScript but not http://examplesite.com/object/aClassMethod Is it possible ? Thanks for any help Nicolas

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character encoding
by adam molyneaux 09 Nov '07

09 Nov '07

Hi I am currently having problems sorting out utf8 encoding through the following chain of events, and I would GREATLY appreciate any help anyone can offer. I need to do the following, in a Zope 2.9.2-, python 2.4.3 setup (I have also tried this on Zope 2.10.4 with the uniocode patch for MySQLDA and get slightly different equally annoying results). 1. Read and parse a file encoded as utf8 - currently done with an external script 2. send it to a page to edit as utf8 3. save it from the page into a mysql database as utf8 This is slightly complicated by the fact that steps 2 and 3 need to happen via XMLHttpRequest calls, and the data is sent serialized as JSON Anyone done anything similar with success ? Currently when I export stuff from my database for the end client I am having to change %uXXXX in the text into \uXXXX then decode the string as 'latin1', further decode it as 'unicode_escape', then recode it as 'utf8'. This seems slightly 'dangerous'. Thanks for any help - this has cost me far too much time already. Adam

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is it possible to bypass ZSQL methods and call stored procedures in sqlserver straight from ZPT?
by michael nt milne 08 Nov '07

08 Nov '07

Hi We have some dynamic ZSQL methods all working but are looking to optimise our code and also access some stored procedures which are already written in SQL Server. The question is, can you go straight through to a relational database using the connector object and call a stored procedure straight from a ZPT? Or must you use a ZSQL method to access the procedure? Thanks -- michael

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five zcml addview question
by David Davis 07 Nov '07

07 Nov '07

I am trying to create simple content type with zope 2.10.4 and five. I have performed the following: - created a content interface - created a content type class implementing the interface and extending both Persistent and SimpleItem - created zcml class entries for the content type - created zcml browser entries for 'addform' and 'editform' I am trying to get Zope to automatically create the forms based on the content schema. Once these steps were completed, I found my content type in the ZMI add menu. However, once I selected my content type, I got an error (see below). The error looks like it is missing a 'main_template' object. Any ideas what might be wrong? ERROR MESSAGE: 2007-11-07 12:31:01 ERROR Zope.SiteErrorLog http://localhost:8080/+/Password_add Traceback (innermost last): Module ZPublisher.Publish, line 119, in publish Module ZPublisher.mapply, line 88, in mapply Module ZPublisher.Publish, line 42, in call_object Module Products.Five.browser.metaconfigure, line 417, in __call__ Module Shared.DC.Scripts.Bindings, line 313, in __call__ Module Shared.DC.Scripts.Bindings, line 350, in _bindAndExec Module Products.PageTemplates.PageTemplateFile, line 129, in _exec Module Products.PageTemplates.PageTemplate, line 89, in pt_render Module zope.pagetemplate.pagetemplate, line 117, in pt_render - Warning: Macro expansion failed - Warning: exceptions.KeyError: 'main_template' Module zope.tal.talinterpreter, line 271, in __call__ Module zope.tal.talinterpreter, line 346, in interpret Module zope.tal.talinterpreter, line 891, in do_useMacro Module zope.tal.talinterpreter, line 346, in interpret Module zope.tal.talinterpreter, line 536, in do_optTag_tal Module zope.tal.talinterpreter, line 521, in do_optTag Module zope.tal.talinterpreter, line 516, in no_tag Module zope.tal.talinterpreter, line 346, in interpret Module zope.tal.talinterpreter, line 870, in do_useMacro Module zope.tales.tales, line 696, in evaluate - URL: index - Line 2, Column 1 - Expression: <PathExpr standard:'context/main_template/macros/master'> - Names: {'container': <+ at />, 'context': <+ at />, 'default': <object object at 0x0099F528>, 'here': <+ at />, 'loop': {}, 'nothing': None, 'options': {'args': (<Products.Five.metaclass.SimpleViewClass from add.pt object at 0x05D4C710>,)}, 'repeat': <Products.PageTemplates.Expressions.SafeMapping object at 0x05D 49D78>, 'request': <HTTPRequest, URL=http://localhost:8080/+/Password_add>, 'root': <Application at >, 'template': <ImplicitAcquirerWrapper object at 0x05D4CDB0>, 'traverse_subpath': [], 'user': <User 'admin'>, 'view': <Products.Five.metaclass.SimpleViewClass from add.pt object at 0x 05D4C710>, 'views': <zope.app.pagetemplate.viewpagetemplatefile.ViewMapper object at 0x05D4CD50>} Module zope.tales.expressions, line 217, in __call__ Module Products.PageTemplates.Expressions, line 153, in _eval Module zope.tales.expressions, line 124, in _eval Module Products.PageTemplates.Expressions, line 100, in trustedBoboAwareZopeTr averse Module OFS.Traversable, line 284, in unrestrictedTraverse - __traceback_info__: ([], 'main_template') KeyError: 'main_template'

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repozo.py problems
by Jim Dibb 07 Nov '07

07 Nov '07

I'm going to dig up something that's really troubling me today, and a "Martin Koekenberg" in the past. Martin first posted the following about repozo.py. Traceback (most recent call last): File "C:\Program Files\Plone 3\Zope\bin\repozo.py", line 76, in <module> from ZODB.FileStorage import FileStorage ImportError: No module named ZODB.FileStorage Which, it was noted was a problem with PYTHONPATH not being set. One question I have is why plone3 installlation does not set this variable on installation? So I set it and now have the following problem (note I slightly modified repozo.py to print our sys.path before importing.) C:\Program Files\Plone 3\Zope\bin>repozo.py ['C:\\Program Files\\Plone 3\\Zope\\bin', 'c:\\Program Files\\Plone 3\\Zope\\lib \\python', 'C:\\WINNT\\system32\\python25.zip', 'c:\\Python25\\DLLs', 'c:\\Pytho n25\\lib', 'c:\\Python25\\lib\\plat-win', 'c:\\Python25\\lib\\lib-tk', 'C:\\Pyth on25', 'c:\\Python25\\lib\\site-packages', 'c:\\Python25\\lib\\site-packages\\wi n32', 'c:\\Python25\\lib\\site-packages\\win32\\lib', 'c:\\Python25\\lib\\site-p ackages\\Pythonwin'] Traceback (most recent call last): File "C:\Program Files\Plone 3\Zope\bin\repozo.py", line 75, in <module> from ZODB.FileStorage import FileStorage File "c:\Program Files\Plone 3\Zope\lib\python\ZODB\__init__.py", line 20, in <module> from persistent import TimeStamp File "c:\Program Files\Plone 3\Zope\lib\python\persistent\__init__.py", line 1 9, in <module> from cPersistence import Persistent, GHOST, UPTODATE, CHANGED, STICKY ImportError: DLL load failed: The specified module could not be found. >From the following, it's pretty clear that the cPersistence.pyd file is present. C:\Program Files\Plone 3\Zope\lib\python\persistent>dir Volume in drive C has no label. Volume Serial Number is F07F-A1B8 Directory of C:\Program Files\Plone 3\Zope\lib\python\persistent 11/07/2007 10:26 AM <DIR> . 11/07/2007 10:26 AM <DIR> .. 08/17/2007 08:51 AM 15,872 cPersistence.pyd 08/17/2007 08:51 AM 12,288 cPickleCache.pyd 06/23/2007 02:06 AM 2,826 dict.py 08/23/2007 01:02 PM 2,559 dict.pyc 06/23/2007 02:06 AM 10,556 interfaces.py 08/23/2007 01:02 PM 10,685 interfaces.pyc 06/23/2007 02:06 AM 2,929 list.py 08/23/2007 01:02 PM 3,431 list.pyc 06/23/2007 02:06 AM 4,193 mapping.py 08/23/2007 01:02 PM 3,148 mapping.pyc 06/23/2007 02:06 AM 738 README.txt 08/23/2007 01:01 PM <DIR> tests 08/17/2007 08:51 AM 8,704 TimeStamp.pyd 06/23/2007 02:06 AM 8,258 wref.py 08/23/2007 01:02 PM 8,539 wref.pyc 06/23/2007 02:06 AM 1,211 __init__.py 11/07/2007 10:26 AM 793 __init__.pyc 16 File(s) 96,730 bytes 3 Dir(s) 8,482,267,136 bytes free Is there a 'cPersistence.dll' file that is supposed to be somewhere, and maybe I don't have that in my path? Thanks a lot. This is really frustrating. Jim

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running Zope/Plone on a Windows Virtual Machine?
by michael nt milne 07 Nov '07

07 Nov '07

Has anyone tried this or had any experience with this? We're using Enfold Server and for staging and development purposes instead of using separate machines we're thinking of setting up a 'virtual machines' on the same server. There appear to be many benefits. However knowing that Zope/Plone are RAM instensive this could be an issue. Thanks -- michael

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Zope Jobs
by Tom Von Lahndorff 07 Nov '07

07 Nov '07

Anyone have any recommendations for a good place to post a Zope job? Its for a freelance, work from where ever gig. Thanks. Tom

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Please help in selecting approach (zope2, 3, +grok, plone) for a new project
by Chetan Kumar 07 Nov '07

07 Nov '07

Hi all I am to start working on a new web (site/application) project. Wanted to find out better route from among the available choices. In other words what are *you* using ? I have used zope 2 and plone in my past projects. The question arises now as we have new rewrite of zope with grok on the horizon and plone as always is there (with a new version). There is also new CMS based on zope (hivert announced recently on zope-dev). Exciting times, but a little confusion too. The site will tend towards social networking some time later as I see the requirements taking shape. At the moment it is about people joining a community website and exchanging information on a particular topic, reviewing items (articles, links, photos) added to the site. TIA Chetan

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Zope 2-3-five Confusion
by David Davis 06 Nov '07

06 Nov '07

I've pretty new to zope and am getting lost in the shuffle between zope 2/3/five/archetypes. I'm trying to get my feet wet by using zope 2.10.4. I'm trying to get a very simple content type to work inside the ZMI. I'd like to use the latest recommended five approach to this, but am getting confused in understanding what this approach is nowadays. I done much searching on the Internet and have purchased a couple of books (Web Component Development with Zope 3 & Professional Plone Development), but am still confused as to what approach should be used (what is the easiest) when it comes to the ZCML files. 1. Do I require "<five:registerClass ..." entry? I've seen examples where this is included, and others where it is not. I've only had luck in getting my type into ZMI when I've used this directive....but I am looking for the best practices approach. 2. I get very confused about examples I've seen that use the <browser:addAddMenuItem ..." directive. Does this directive work? What is it supposed to do? Compared to "<browser:menuItem ..."? 3. I am looking for something that might be considered a reference on what the best practices would be for using five. An example I found was http://philikon.de/files/zope3-for-zope2-developers.pdf. However, I could not get the examples to work for me (especially when it came to the "Step 4: Basic Configuration" section where he goes into ZCML configuration).

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integrating a zope app with plone security, search
by Tim Nash 06 Nov '07

06 Nov '07

Does anyone know a good resource (link) that describes integrating a zope application into plone? I have a zope application (dtml, scripts, external methodss, etc.) that I want to package for distribution with plone 3.x. I also want to import the zexp under the plone folder and have all the plone users have access to this application. However, I don't want to turn this application into a plone app. At some sites, it will run much faster without plone. Thanks for the help. googling has been fruitless so far. Tim

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