December 2005 - Zope

Programmatically flushing entries from RAM cache?
by John Barham 15 Dec '05

15 Dec '05

Is it possible to flush a path w/ a specific argument from a RAM cache from a Python script? Here's my situation: I have a script FolderExists() that takes a single "path" argument and, after running an SQL query, returns True or False if the folder path exists or not in the database. Since the database query is relatively expensive, I want to cache its result in RAM. However, if a folder is created (using another Python script in the same Zope instance) I want to flush the cached result for the path (i.e., I don't want to flush all of the cached entries for the FolderExists method if that can be avoided). TIA, John

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ZClass - object is broken
by Jens Walte 14 Dec '05

14 Dec '05

Hello, i have a little Problem with an old self-made ZClass-Product named "CMSFolder". Allready existing objects of CMSFolder are broken since the last restart of the instance. It is really strange because there is no broken-sign in /Control_Panel/Products. It is still possible to create new objects with CMSFolder, but if i restart the instance, the new objects are broken too. CMSFolder is folderish and it's subobjects of other meta_types are still accessable! I get the following message, if i try to access an CMSFolder-object: "This object's class was CMSFolder in module *sCk2LCT0ragDyG33NdapTQ==." The CMSFolder-ZClass-Product still has this ID and show's no errors. An export-import don't work, a rename too. I couldn't remember any changes that could be a reason for this effect. Thanks for help regards Jens

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Mailman & Zope
by John Poltorak 14 Dec '05

14 Dec '05

How do I configure a Mailman list for a website which is Zope based? I guess some entries in Apaches configuration file need to distinguish between Zope based pages and Apache pages for a given virtual host, but I've no idea how to do this. Can anyone give me an example? -- John

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Re: [Zope] zope and LDAP for authorisation
by J Cameron Cooper 13 Dec '05

13 Dec '05

Marinussen, M.J. (Ria) wrote: >> Hi, >> >> I'm looking for a zope product that enables me to use our Active >> Directory LDAP server for verification of login credentials only. >> I want users still stored in Zope, and access to directories should be >> also something I can handle in Zope, and I don't want to use LDAP groups >> because I don't control the LDAP server and there are no groups on the >> LDAP server I can use. >> >> So really, all I want is that Zope checks the passwords with the LDAP >> server instead of with it's own userfolder. >> And perhaps, a possibility to check/search for the available loginnames >> on the LDAP server when adding a user to the userfolder. >> >> I've checked out LDAPUserFolder but that's not what I'm looking for (I >> think...). >> >> Does anyone know whether there is such a product, or give me some >> poiners to adapt an exisiting product to my needs? > There is an LDAPMultiplugin for PluggableAuthService, which might make this easier. It could be as easy as installing LDAPUF in PAS and turning off all its interfaces except for the auth one. However, I don't quite see how you would store users in Zope and then ask for the password in LDAP on a one-to-one basis. Seems like you're relying on an "accidental" correspondence between ZODB-stored user names and LDAP user names. --jcc -- "Building Websites with Plone" http://plonebook.packtpub.com/ Enfold Systems, LLC http://www.enfoldsystems.com

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Zope workflow for change management
by Brant Winter 13 Dec '05

13 Dec '05

Hi all - this is my first post to this list, and I am not quite sure if I am in the right spot ! I am looking at building up a change management / release management tool that woudl be hosted online in some form, that has its workflow built around solid ITIL foundations. I have seen Plone in th epast, and have installed it and played around, but I am wondering if Zope / Plone is the tool for this job ? I am basically drawn to Zope because of its ability to create workflows, but I am not sure if this is exatly the right tool. Basically I want to be able to create a basic change management workflow, but have different models depending on what type of change is occuring, ie software release as opposed to putting a new server in a live production rack. Each of these 'changes' would require a different workflow model. Is Zope / Plone for me ?

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Zope and Image display
by tyson 13 Dec '05

13 Dec '05

Hi- I have a dtml form that loads a binary image from a python script. This works fine with no problems, but I want to return the image and also some other data as well. The only thing is when I return the information in the form of a list, my image won't load. I think that the list automatically changes the binary image into a string or something. Does anybody know about this or some work around by any chance? Here is my python script "py_get_image()": *#calling an external method to get binary image ganttImageData = context.loadGanttWSping() #returing a list starting with the image, and then a string return (ganttImageData[0], ganttImageData[1])* Here is the dtml code that works if I don't return it as a list: *<dtml-var standard_html_header> <img src="py_get_image"> <dtml-var standard_html_footer> * Here is the dtml code that doesn't work: *<dtml-var standard_html_header> <dtml-in py_get_image> <dtml-if sequence-start> <img src="_['sequence-item']"> <dtml-else> <dtml-var sequence-item> </dtml-if> </dtml-in> <dtml-var standard_html_footer>* Also, this doesn't work either: *<dtml-var standard_html_header> <dtml-var "py_get_image[0]"> <dtml-var standard_html_footer> * Any help would be much appreciated!

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just curious: zope and ingres
by Sascha Ottolski 13 Dec '05

13 Dec '05

Hi, I remembered reading about the plans to create RDBMS integration as alternative to ZODB about 1,5 years ago: http://www.zope.com/about_us/press_releases/ca_and_zope.html Doesn't seem to be alive anymore, right? Cheers, Sascha -- Gallileus - the power of knowledge Gallileus GmbH http://www.gallileus.info/ Pintschstraße 16 fon +49-(0)30-41 93 43 43 10249 Berlin fax +49-(0)30-41 93 43 45 Germany +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ AKTUELLER HINWEIS (Dezember 2005) Haben Sie schon all Ihre Weihnachtsgeschenke besorgt? Nutzen Sie doch einfach Gallileus, um bequem Bücher zu bestellen: http://www.gallileus.info/search/ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

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about mouse interactions..
by Allen Huang 13 Dec '05

13 Dec '05

Hi... This is probably not much about zope, but I want to do make a web page that does mouse drag query that query the zodb for information. For example... I have a picture and I want my mouse to be able to point a single point or drag a selection box and what ever is selected will make a new web page and with table about its information. Would anyone give me some pointers about how I could accomplish this? what docs or books I should read? --------------------------------- Yahoo! Shopping Find Great Deals on Holiday Gifts at Yahoo! Shopping

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Recursive Display Of All Folder Items
by Francisco Chamorro 13 Dec '05

13 Dec '05

Hi everyone, I am trying to get a dump of all the content currently in our zope server. Using DTML I was able to get the top level folders to display their content but I am unable to recursively display the contents of the sub-folders. This is the code I am using for my top level folders, where "TV" is the name of the folder I want to display. <dtml-in "TV.objectValues()"><dtml-var id> </dtml-in> My second attempt at displaying sub-folder content was the following: <dtml-in "TV.objectItems()"> id: <dtml-var id>, type: <dtml-var meta_type> <dtml-if "meta_type=='Folder'"> <dtml-in expr="objectValues(<dtml-var id>)"> id: <dtml-var id>, type: <dtml-var meta_type> </dtml-in> </dtml-if> </dtml-in> But that also fails. I searched the documentation and found a post about recursively calling the same function but that did not work as I get a "excessive recursion" error. Any help on this problem would be greatly appreciated. Thank you. -Francisco

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Issues with pyperl: perl2.so not found
by Cameron Beattie 13 Dec '05

13 Dec '05

I am attempting to install pyperl and am having an issue where it can't find perl2.so. I think this is one of those ones where it's looking under the stairs for something which is actually in the laundry under a pile of dirty clothes. cd /tmp/pyperl* cd Python-Object; perl Makefile.PL; make install cd .. python setup.py install python test.py Traceback (most recent call last): File "apply.py", line 1, in ? import perl ImportError: perl2.so not found echo $PATH /usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/X11R6/bin:/root/bin find -name perl2.so ./usr/lib/python2.4/site-packages/perl2.so whereis python python: /usr/bin/python /usr/bin/python2.4 /usr/lib/python2.4 /usr/lib/python2.3 /usr/include/python2.4 /usr/share/man/man1/python.1.gz whereis perl perl: /usr/bin/perl /usr/share/man/man1/perl.1.gz python -V Python 2.4.1 perl -v This is perl, v5.8.6 built for i386-linux-thread-multi Obviously I've done something wrong and any clues to point me or the system in the right direction would be appreciated. Regards Cameron

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