November 1999 - Zope

ZSQL question
by Sam Gendler 08 Nov '99

08 Nov '99

Is there a way to access the updated value in an auto_incrementing field when performing an INSERT to MySQL. It is possible to do a SELECT after an INSERT, but it is inefficient and MySQL does return the auto_increment value, I just can't find a way to access it inside zope If you respond to this, could you please all send email to mailto:8056891191@mobile.att.net, as I am not going to be online for a good chunk of tomorrow, but I will want the answer to this question ASAP. The above email address sends email to my pager. Thanks, --sam

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Dealing with form data in External Methods
by David S. Harrison 08 Nov '99

08 Nov '99

After a little experimentation, I found that the values submitted via a form are placed into the receiving DTML document's name space. That is very nice. Now I am wondering whether these values are also available to external methods I call as part of the evaluation of the receiving DTML page. Let me be more specific: suppose I have an external method: def ComputeColumns(self): # Find the value of 'testcase' in the enclosing name space? return computeList(testcase) The DTML page that calls this external method has a form variable named 'testcase'. Is there some way I can use the self object to evaluate names in the enclosing name space? Or should I try to call the method explicitly with arguments? Right now, the code in the DTML page is kind of nice: <dtml-in ComputeColumns> <LI><dtml-var sequence-item> </dtml-in> I suppose I could change it to be a call. But I am not clear on what should be used for the name of "ComputeColumns" or how it should be called. My first guess would be: <dtml-in "self.ComputeColumns(testcase)"> But I haven't tried it yet. I am hoping there is some method I can call using 'self' to evaluate name space variables in an external method. David S. Harrison (dsh(a)magma-da.com)

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AUTHENTICATED_USER change on the fly?
by julio dinis 07 Nov '99

07 Nov '99

Hi all, dont ask me why I need this but: I need to be able to before execute a method change from anonymous and be superuser(because only with this user I can execute the method, but would like to do it with anonymous), and after the execution of the method return to Anonymous. I know I could configure some proxy roles but have run all possibilities in the situation I'm testing. What I need is help to know if there are specific methods from Accesscontrol or something like that to do what I want. Can anyone help me here? Thank you very much, Júlio Silva ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

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Business Rules, aqusition and Pointers...
by Johan Carlsson 07 Nov '99

07 Nov '99

I have a problem I'm working with in Zope that gave me an idea about how I would like to have business rules implemented in Zope. By business rules I mean logic expressions that controls what methods and content is available. Variable maybe current user or some user information, browser, language preferences, and much more... Here's my scenario: I have to user userA and userB and I have to user roles roleA and roleB. I also have a folder object [the_folder] somewhere in my Zope tree: /some_folder/the_folder. What I want is to make the_folder contain different stuff depending on which user accesses it. I create to sub folder: folderA and folderB and assign roleA to folderA and roleB to folderB. Both roleA and roleB is assigned to the_folder. What I would like to have here is the ability to add Business Rules to the_folder: if auth_user==userA: point to folderA if auth_user==userB: point to folderB ... The pointer results in that for userA the_folder appears as folderA as if it was /some_folder/folderA. Acquisition also should work it way from folderA->some_folder->(PARENTS[-1]), not folderA->the_folder->some_folder->(PARENTS[-1]). Are there something wrong with this idea? //johan

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Bug in pcgi publishing in 2.1.beta1 ?
by sf＠fermigier.com 07 Nov '99

07 Nov '99

Hi, I've tried to install Zope 2.1.b1 this afternoon but came across a problem: Using ZServer on port 8080 works fine, but I'd like to publish my site on a virtual host through Apache. I you the usual trick (RewriteRule...) that used to wolr with previous versions. It works fine for the first screen (http://localhost/) and the local documentation, but as soon as I try to manage the site (http://localhost/manage) the whole system goes into an endless loop, as witnessed by the apache log: 127.0.0.1 - - [08/Nov/1999:00:31:39 +0100] "GET /Zope/manage HTTP/1.0" 401 1487 127.0.0.1 - - [08/Nov/1999:00:31:39 +0100] "GET /Zope/manage HTTP/1.0" 401 1487 127.0.0.1 - - [08/Nov/1999:00:31:39 +0100] "GET /Zope/manage HTTP/1.0" 401 1487 127.0.0.1 - - [08/Nov/1999:00:31:39 +0100] "GET /Zope/manage HTTP/1.0" 401 1487 127.0.0.1 - - [08/Nov/1999:00:31:39 +0100] "GET /Zope/manage HTTP/1.0" 401 1487 127.0.0.1 - - [08/Nov/1999:00:31:40 +0100] "GET /Zope/manage HTTP/1.0" 401 1487 127.0.0.1 - - [08/Nov/1999:00:31:40 +0100] "GET /Zope/manage HTTP/1.0" 401 1487 .... Any Idea ? S. -- Stéfane Fermigier, Tel: 06 63 04 12 77 (mobile). Linbox Inc., AFUL, Linux-Center. <www.linbox.com> - <www.aful.org> - <www.linux-center.org>.

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ZClass Folder Properties
by Kevin Howe 07 Nov '99

07 Nov '99

I have a ZClass which has "Folder" Base Class so that the user has access to the manage_Properties screen, where they can add more Properties if needed. What I can't figure out is how set some default properties for this object so that "title" isn't the only property that exists when they create a new object. I don't mean a property sheet, rather the folderish properties of the object. How is this done? Cheers KH

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Object Conversion (& GNOME, GUI, WebDAV support)
by Eron Lloyd 07 Nov '99

07 Nov '99

Is there a way to convert, say, a DTML Method into a DTML Document? By this, I mean only changing it's object-type property? Could I add a property to objects to allow their conversion, so the system would only look for those having this "switchable" property? Also, when I download a file using FTP or WebDAV, make changes, and then upload it back into Zope, where in the object is this property-type determined? A downloaded DTML Method looks like a simple text object when viewed through a text-editor...what if when I uploaded it I wanted it to be a Document? Does Zope insert an ID that remains in the Database? These questions are posed with thoughts of possibly coming up with a small GUI tool, that could be used as a sort of PyGNOME (or equivalent) content management that consisted of a Frontend to the Main.py Zope interface, where objects could be created and manipulated. XEmacs and FTP are ok for me, but for the content managers and users, a nice GUI tool would make Zope become adoptable easier. Also there is an idea to provide GNOME with WebDAV folders, since there really isn't much support for WebDAV under Linux thus far. Just some questions and thoughts, Eron

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Tracking Mailing Lists with Zope.
by S Shah 07 Nov '99

07 Nov '99

Hi all, We (a student group at UC Berkeley) are attempting to convert our site to Zope, but I am having difficulty figuring out mailing lists. We use majordomo as our mailing list manager, and LWGate for a WWW interface. One of the appeals of Zope was the possibility of being able to search these lists. But after scouring the Zope mailing list, I haven't been able to figure this out yet....2 questions: 1.) How can I implement zope.org style (or web-based) archiving and reading of mailing lists? 2.) How can I search these mailing lists? ......oh and can I continue to use majordomo, or will we need to change our mailing list software? I have read posts about "ZCatalog" and "email objects" , but I can't figure out how these relate. thanks, sachin shah __________________________________________________ Do You Yahoo!? Bid and sell for free at http://auctions.yahoo.com

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FTP access
by Emmanuel Viennet 07 Nov '99

07 Nov '99

I'd like to update my site automatically via FTP: upload dtml methods and folders, set properties in folders, etc. Is it possible ? Currently the ftp server seems to create only DTML documents. Thanks, Emmanuel -- Emmanuel Viennet: <viennet(a)lipn.univ-paris13.fr> LIPN - Institut Galilee - Universite Paris-Nord 93430 Villetaneuse - France

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Python on Sun cf Linux/Intel
by Dr. Ross Lazarus 07 Nov '99

07 Nov '99

Some time ago, there was a brief thread about zope on Sun. Does Python 1.5.2 run slower than might be hoped ? Two examples - taken from real boxes running real jobs. The bigger box was running more/other tasks than the littler one but load average never got beyond 1.0. Note that the Lintel box was a midvintage PII350 (92mB ram !) server running a squid proxy - surely not twice as fast as a lightly loaded dual cpu sun ?. Exhibit one: pystone.py on sin - Pystone(1.1) time for 10000 passes = 5.57 This machine benchmarks at 1795.33 pystones/second On the LIntel box it was: Pystone(1.1) time for 10000 passes = 2.36 This machine benchmarks at 4237.29 pystones/second Exhibit 2: A self timing site generating (zclass based - no ZSQL) zope script on a Linuxtel box with Python 1.5.2 (#1, Apr 14 1999, 10:34:26) [GCC 2.7.2.3] on linux2 took 1min:10sec. On a dual cpu Sun called sin, (running Python 1.5.2 (#1, Oct 13 1999, 11:11:12) [GCC 2.95.1 19990816 (release)]) on sun os5, it took 2min:48sec. Is it GCC that makes the sun slower than one might hope ? Anyone ? -- Ross Lazarus Email: rossl(a)med.usyd.edu.au http://www.health.usyd.edu.au/people/rossl.htm

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