May 2005 - Zope - Zope lists

DTML in Zope 2 vs Zope 3
by David H 01 Jun '05

01 Jun '05

Hi, I understand that DTML will be in Zope 3. My question is, do "namespaces" and "context" also migrate to Zope 3? If not, could break existing code? David

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Saving the html-code
by Flemming Bjerke 01 Jun '05

01 Jun '05

With a dtml-script I renders data from a mysql-database. But, sometimes I should like to save the html-code generated by the script. When I try to do this with a pythonscript I run into problems with acquiring the html-code generated by the dtml-script. I looks like the dtml-script does not get the proper namespace. How do I solve this? Flemming

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Namespace for PythonScript
by Hong Yuan 01 Jun '05

01 Jun '05

Hello, If a PythonScript is called from a Page Template, how can it access the variables defined using: <tal:define="global ..." /> in the calling script? Of course, one can pass the variables to the PythonScript explicitly as parameters, but is there any other way to let the PythonScript to easily access the name space of its calling page template? Hong Yuan

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using DOM from within Zope
by karl.eklund＠amnesty.se 01 Jun '05

01 Jun '05

Maybe this is the wrong way or something, but how can I use xml.dom.minidom (or other module in its entirety) from within Zope? I've tried various stuff in the "MyScriptModules" Product. This same approach seems to work with the "re" module. Example: Products/MyScriptModules/__init__.py: from Products.PythonScripts.Utility import allow_module ... allow_module("xml") allow_module("xml.dom") allow_module("xml.dom.minidom") Python Script "inside" Zope: import xml.dom.minidom xmlstring="<a><b>texttextext</b><c>hejhejhej</c></a>" domtree=xml.dom.minidom.parseString(xmlstring) return domtree.toxml() Result: Username/Password question. "Error Type: Unauthorized Error Value: You are not allowed to access 'toxml' in this context"

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Creating links dynamically
by John Poltorak 01 Jun '05

01 Jun '05

I want to provide a set of links on a Zope site dynamically. ie don't want to hard code a number of links, but would like to load them from an external source which I can add to independently, but I have no idea as to how to set about it. Any ideas? I'd be quite happy to have the links in a text file with one link per line. -- John

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XML Content handling questions.
by Nikko Wolf 01 Jun '05

01 Jun '05

Three questions, in order of importance (to me): 1) Is it possible to validate an (uploaded) XML file against a schema (currently on the Zope server)? What, if any, extra packages are needed? I want to use this in my upload forms to alert the user if their files are invalid. 2) I also need to serve up web-based forms and allow the user to create XML content based on a user-selected schema. Something like what Chiba (http://chiba.sf.net/) is targeting. Of course, though, that isn't a Python/Zope solution. Has anyone seen anything that works? At this point, installing Tomcat and Chiba is what I presume I'll be doing in a couple of weeks.... 3) Is there a function built-in to Zope that allows merging XML files? (ie: all the <abc> within a list of user-selected files). I've got an Extension that works correctly (using the Amara/4Suite packages), so an answer here is mostly for me to learn Zope better. Thanks, Nikko. PS: I'm pretty new to Python & Zope, but not web servers or other programming. Server: Fedora Core 3 Python 2.3.4 Zope 2.7.6-final Plone 2.0.5 4Suite 1.0b1 Amara 1.0b2

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RE: [Zope] python question
by Jim Abramson 31 May '05

31 May '05

blast! i'll keep my mouth shut til I get the library memorized. Jim > -----Original Message----- > From: Tino Wildenhain [mailto:tino@wildenhain.de] > Sent: Tuesday, May 31, 2005 4:06 PM > To: Jim Abramson > Cc: Kate Legere; Zope > Subject: RE: [Zope] python question > > Am Dienstag, den 31.05.2005, 15:38 -0400 schrieb Jim Abramson: > > sort() on a sequence does not return anything. It operates on the > > [mutable] sequence in place. > > sequence is a module in Zope. So she indeed was right. > >

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RE: [Zope] python question
by Jim Abramson 31 May '05

31 May '05

sort() on a sequence does not return anything. It operates on the [mutable] sequence in place. You probably want to push this bit into a python script where you have more elbow room, and do this: files.sort(etc,etc) return files[0] hth, Jim > -----Original Message----- > From: zope-bounces(a)zope.org [mailto:zope-bounces@zope.org] On > Behalf Of Kate Legere > Sent: Tuesday, May 31, 2005 3:35 PM > To: Zope > Subject: [Zope] python question > > I may be asking this in the wrong place but I have a tal page > where I want to use python to display only the most recent > addition to a folder of files. > > > I can sort the folder and return all the files easily with: > return sequence.sort(files, (('bobobase_modification_time', 'cmp', > 'desc'),)) > > How do I return just the most recent one? (I tried sorting > and then using return max(files) but that doesn't give me all > the properties and I need them for display) > > Kate > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://mail.zope.org/mailman/listinfo/zope > ** No cross posts or HTML encoding! ** > (Related lists - > http://mail.zope.org/mailman/listinfo/zope-announce > http://mail.zope.org/mailman/listinfo/zope-dev ) >

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python question
by Kate Legere 31 May '05

31 May '05

I may be asking this in the wrong place but I have a tal page where I want to use python to display only the most recent addition to a folder of files. I can sort the folder and return all the files easily with: return sequence.sort(files, (('bobobase_modification_time', 'cmp', 'desc'),)) How do I return just the most recent one? (I tried sorting and then using return max(files) but that doesn't give me all the properties and I need them for display) Kate

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RE: [Zope] zope vs. memory [was Re: Refcounts, ZODB Cache and memory leaks?]
by Andy Yates 31 May '05

31 May '05

> > Some moths ago, I found such a leak in the "TempStorage" > implementation. However, this is fixed in recent Zope versions > (I think since 2.7.5). > When you fixed the TempStorage the leak indeed slowed down significantly. However, Zope still leaks memory. If left uncheck Zope will still consume all available memory and crash the server. We have resigned ourselves to restarting Zope every few weeks. Andy

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