March 2001 - Zope - Zope lists

How to test for a user having a permission?
by Hamish Lawson 14 Mar '01

14 Mar '01

I know I can map methods to permissions and so have the Zope machinery take care of testing whether the user has permission to call a method, but say I want to decide whether to display an 'Edit' button on the page depending on whether the user has the appropriate permission for editing. How do I test for the user having this permission - is there some kind of hasPermission() method I can use? I could make an assumption about which roles have which permissions and call hasRole(), but that doesn't seem right to me* - I don't think my code should care about what roles the user has, only whether they have the required permission. Hamish Lawson * The subject of another post of mine ;-) ===== Hamish Lawson hamish_lawson(a)yahoo.co.uk ____________________________________________________________ Do You Yahoo!? Get your free @yahoo.co.uk address at http://mail.yahoo.co.uk or your free @yahoo.ie address at http://mail.yahoo.ie

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RE: [Zope] zope for intranet?
by Eric Casteleijn 14 Mar '01

14 Mar '01

[*SCHNIPP*] > I recommend searching Zope.org for some > products which will > do what you want and more, for example WorldPilot. I've tried to locate the worldpilot product for the last 2 months, but have been unable to. At first the site linked to by zope.org and zope treasures gave a 'server not found'. Now they link to a sourceforge project with no released files. I found this very strange, and was expecting a comment on this list, but i haven't seen any yet. Thought i'd point this out, as it's bound to confuse the person who asked the question, as it did me. (If they read this, I would recommend Zope to them. I'm still pretty much a newbie, but i've benefited from Zope and it's community enough that i don't even want to look back on the way i developed web-apps before. All of what you indicated is very possible in Zope.) eric 'what was my middle name again' casteleijn > -- > Andy McKay.

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Creating images on the fly
by Oliver Sturm 14 Mar '01

14 Mar '01

Hi, I'm looking for a way to create images on the fly. They'd need to contain short strings, typeset in different fonts. Something like gfont, but accessible from zope. Any ideas, please? Best regards, Oliver mailto:sturm@oliver-sturm.de

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Re: Thanks for the Zope Help Yesterday
by Casey Duncan 14 Mar '01

14 Mar '01

David Kyte wrote: > > Do you know of any simple way of generating sequential > numbers eg Order numbers in a persistant global way? > > Thanks > > Dave. > > PS > > Hard stuff is easy with zope, but some easy stuff can be > really hard. In perl I would just lock a file, bump the > value, and then return the value. Used to be you could create a ZClass for your order and store a class attribute that could be "bumped" up everytime you create an instance of the class. However I found a security flaw in this, and DC eradicated it in a recent hotfix. You can however still do it from an external method AFAIK. Create an external method like so: def getNextNumber(ZClass): if hasattr(ZClass, 'sequence'): ZClass.setClassAttr('sequence', ZClass.getClassAttr('sequence') + 1) else: ZClass.setClassAttr('sequence', 1) return ZClass.getClassAttr('sequence') Then call it from the ZClass constructor method (which is usually a DTML method, but could be a Python script) and use the value it returns to either set the id or whatever property you are storing the order number into. I would like to see a secure version of this functionality exposed to DTML and TTW scripts, but DC seems a bit adverse to the idea. I will probably create a patch at some point anyhow and see if they like it. -- | Casey Duncan | Kaivo, Inc. | cduncan(a)kaivo.com `------------------>

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RE: [Zope] newbie
by Farrell, Troy 14 Mar '01

14 Mar '01

Welcome to Zope, Dennis. I trust you will find it both exciting and frustrating. You can adjust your superuser name and password with the zpasswd.py script. Restart Zope and login with the chosen username and password. zope@jesterdev:~/zope$ python zpasswd.py access Username: superuser Password: Verify password: Please choose a format from: SHA - SHA-1 hashed password CRYPT - UNIX-style crpyt password CLEARTEXT - no protection. Encoding: SHA Domain restrictions: williams.com zope@jesterdev:~/zope$ ./stop zope@jesterdev:~/zope$ ./start zope@jesterdev:~/zope$ Your next hurdle will be the infamous 'Superuser cannot own' error message. Once you have logged in, go to the acl_users folder and add a normal user with the *MANAGER* role. Next, close all copies of your browser. Finally open up your manage screens, logged in as your new user with the MANAGER role and the world is your oyster. Troy -----Original Message----- From: Dennis Pabalan [mailto:demic.pabalan@q-linux.com] Sent: Wednesday, March 14, 2001 2:05 AM To: zope(a)zope.org Subject: [Zope] newbie Hi to all!!! I am a zope newbie and I just installed zope and zope-server package on my linux box. I could not logged on to mydomain:8080. I used superuser and a 123 password, how will i solve the problem? Thanks in advance :) Demic -- .--. Demic Pabalan mobile://+63.917.345.1692 ( () ) Q Linux Solutions, Inc. office://+63.2.894.3592/ `--\\ A Philippine Open Source Solutions Co. http://www.q-linux.com/ _______________________________________________ Zope maillist - Zope(a)zope.org http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )

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Re: [Zope] problem with Zope and IE and ReportLab
by Oliver Bleutgen 14 Mar '01

14 Mar '01

Jerome Alet <alet(a)unice.fr> wrote Hi Jerome, > [...] > --- CUT --- > <dtml-call "RESPONSE.setHeader('Content-Type', 'application/pdf')"> > <dtml-call "RESPONSE.setHeader('Content-Disposition', 'attachment; > filename=rapport.pdf')"> > <dtml-var rpdf> > --- CUT --- > When viewed in Netscape 4.76 under Linux, all works fine, and a dialog box > opens, asking me to save the PDF file as "rapport.pdf", or if I've got > acroread installed as a plugin on the machine, automatically launches it > and all is fine and works flawlessly. Hmm, IIRC the Content-Disposition should force a download dialog, i.e. disable automatic launching of attachments - that is at least the way I always use it. > When viewed under Internet Explorer 5.0 under Windows NT 4 (sp5), the > dialog box opens but IE tells me it can't download the file. Have you tried the same without this header? At least I can tell you that I have used reportlab to generate PDFs for IE 5 successfully. cheers, oliver

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sorting based on object url
by Parikh, Jay 14 Mar '01

14 Mar '01

I have a simple ZCatalog that I am trying to sort via the path of the objects. I have the following so far, and it doesn't seem to work. <dtml-in catalog sort="catalog.getpath(data_record_id_)" size=50 start=query_start> ... </dtml-in> Thanks in advance.

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FTP and nested ZClasses
by John R. Daily 14 Mar '01

14 Mar '01

I'm running into problems with nested ZClasses and the FTP server in 2.3.0. Most significant problem: if I have a ZClass defined within another ZClass in a Product, I can't access the methods directory of the nested ZClass. The FTP server returns a 550, "No such directory". I've tried this with ange-ftp, lftp, and generic ftp. I haven't yet reported it to the Collector, in hopes I'm just missing something obvious. Other annoyances: What's up with the trailing space after nested class names? Finally, why doesn't the FTP server recognize a renamed file as a Python Script when it has ## Script (Python) "private_create_component" at the top? -- -- John R. Daily jdaily(a)progeny.com Systems Programmer Progeny Linux Systems Master of the ephemeral epiphany

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RE: [Zope] PostgreSQL on Win2K
by Farrell, Troy 14 Mar '01

14 Mar '01

I have my set of links to database stuff: http://www.zope.org/Members/tfarrell/database On it you will find: PostgreSQL on NT -- http://people.freebsd.org/~kevlo/postgres/portNT.html Troy -----Original Message----- From: Adrian Madrid [mailto:aemadrid@yahoo.com] Sent: Tuesday, March 13, 2001 11:18 AM To: zope(a)zope.org Subject: [Zope] PostgreSQL on Win2K Anybody out there using PostgreSQL on Win2k? I'd like to hear pointers on installation, performance and zope db adaptor used. I'm tied on using Win2K but I'd love to use an open source db. ===== --------------------------- Adrian Esteban Madrid Benson Institute, Webmaster Brigham Young University --------------------------- adrian_esteban(a)madrid.com =========================== __________________________________________________ Do You Yahoo!? Yahoo! Auctions - Buy the things you want at great prices. http://auctions.yahoo.com/ _______________________________________________ Zope maillist - Zope(a)zope.org http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )

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XML Document
by Andreas Tille 14 Mar '01

14 Mar '01

Hello, I would like to package FreePM (http://www.freepm.org) for Debian. This package depends from XMLDocument which I found at http://www.zope.org/Members/jerome/ZCPL/Products/XMLDocument/XMLDocument-1.… . Unfortunately this file doesn't contain the slightes hint about the author of this package nor a license. This permits distributing it in Debian. Could someone enlighten me about authorship so I can ask for a valid license? Kind regards Andreas.

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