October 1999 - Zope - Zope lists

Re: [Zope] Re: New Version of Zope RPMS Available
by Karl Anderson 29 Oct '99

29 Oct '99

"Jeff Rush" <jrush(a)timecastle.net> writes: > I think the problem is that I made the change to omit the ZSYSLOG > env var in the zserver.sh script for running PCGI+ZServer and you > are running the ZServer-standalone version, right? (hope, hope) yep. > I'm not sure why just running "python z2.py" still fails for you but > would like to hear of your results with the new RPMs. Sorry for > the hassle. Again, it was only minor - using the ZSYSLOG var requirs a listening logger & a ZSYSLOG_SERVER var. I commented out the ZSYSLOG var & both calling the script direct & using the init.d script works fine without the ZSYSLOG_SERVER var, so the new RPM should be fine for everyone without making them mess with the script. Thx for making the RPM. -- Karl Anderson kra(a)monkey.org <URL:http://www.pobox.com/~kra/>

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Internal links?
by Ethan Fremen 29 Oct '99

29 Oct '99

Zopistas, I just noticed this making a howto for css- Zope automatically sets the <BASE> tag as the current URL. This is great, but in NS 4.7 this means that href="#foobar" comes out as href="www.zope.org/currenturl/#foobar". Which means when I click on it, it seems to have to load the page. I tried experimenting with ../currenturl#foobar, but it gives the same results. Is this a bug in NS or what? -- Ethan "mindlace" Fremen you cannot abdicate responsibility for your ideology.

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Assorted questions (long).
by Otto Hammersmith 29 Oct '99

29 Oct '99

Hello all, FWIW, I've copied the UserDB product (1.3.0) from the old Zope.org site and created a package. It's cataloged now, but the URL is http://www.zope.org/Members/otto/userdb. I've downloaded the beta ZDiscussions product (very nice, BTW) and it has brought up a question about ZCatalog and classes that inherit from it. If an object inherits from ZCatalog does that mean it's sub-objects are only cataloged there? For example, if I create a ZDiscussion topic how can I have a site wide search interface that will also search the ZDiscussion items in that topic. I've done some experimenting and I've found out I can have a ZCatalog catalog the discussion itself, which is somewhat useful... but there doesn't seem to be a way to catalog the items outside the discussion. Wouldn't it make more sense for ZDiscussion to not inherit from ZCatalog but allow provide a search interface limited to searching discussion? It should be easy to limit the search based on meta-type, but I don't see a way to limit it to a single discussion. Also, to allow the possibility of keeping the discussion out of the default catalog it should be possible to create a new catalog as a sub-object of the ZDiscussion. On the other hand would it make sense (or is is possible already) to "chain" ZCatalogs? Just a few thoughts... :) My second question is on AUTHENTICATED_USER. What properties does it have? The DTML User's Guide says "This object currently provides no public attributes" but the source for ZDiscussions clearly uses some functions and attributes like getName() and 'email'. Is this something that UserDB gives you? (I haven't had the chance to play around with that much, yet.) TIA. -Otto.

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Obtaining URL of Object w/Non-Var Name
by Jeff Rush 29 Oct '99

29 Oct '99

Alright, what's the trick to be able to retrieve the URL of a Zope object via DTML whose id has blanks or punctuation in it? For example, in a normally-named object called 'site_css', I'd do: Ex. 1 <LINK REL=stylesheet HREF=<dtml-var "site_css.absolute_url()"> TYPE="text/css"> But if the object is named 'site.css', I can use it w/o another layer/call or escape code. I tried the following (and a lot of others) and the _[] expression is returning a string, which then fails when it lacks a 'absolute_url' attribute: Ex. 2 <LINK REL=stylesheet HREF=<dtml-var "_['site.css'].absolute_url()"> TYPE="text/css"> Any solution must work with acquisition, as example one does, so I can keep the stylesheet in the site root folder. -Jeff Rush

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RE: [Zope] sample site
by Dom Mitchell 29 Oct '99

29 Oct '99

> -----Original Message----- > From: Geoff Nordli [mailto:geoff@gnaa.net] > Sent: Friday, October 29, 1999 12:08 AM > To: 'Pavlos Christoforou' > Cc: 'Zope List (E-mail)' > Subject: RE: [Zope] sample site > > > That is great, but I was thinking of a full-blown site. Something > that you could import that has all the objects. That way you > can see the different objects that were created, and how they were > used. You get a sense of the whole picture. Maybe we need another option under Products, "Demo Sites". We could start by listing zGold, as well as Gerard's site. -Dom -- ********************************************************************** This email and any files transmitted with it are intended solely for the use of the individual or entity to whom they are addressed. The email has been swept by MIMEsweeper for the presence of computer viruses. www.palmerharvey.co.uk **********************************************************************

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ANN: SiteAccess v0.1.3 (looking good)
by Evan Simpson 29 Oct '99

29 Oct '99

For anyone who hasn't seen the news item at zope.org, just thought I'd let you know that SiteAccess v0.1.3 is up. It's looking pretty solid at this point, and is in production use at several sites. The new version is at http://zope.org/Members/4am/SiteAccess as usual, and here are the new CHANGES.txt entries since v0.1.1: * Using DTML Docs/Methods as Access Rules should work better, and allow normal acquisition. You won't have permissions for anything unless you give the rule a Proxy Role, though. * __no_before_traverse__ at the start of a URL path now persists in generated URLs, making debugging easier. * Fixed absolute_url() of objects acquired from above the point at which setURL was called (usually by a SiteRoot). (thanks again to Bruce Perens and technocrat.net) * Added Base and Path properties to SiteRoot, with Path defaulting to '/', the most commonly used value. If these are blank, it will search for SiteRootBASE and SiteRootPATH. * REQUEST.setURL now accepts either a string or sequence of strings for its path argument. Evan @ 4-am

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installing ZPyGreSQLDA
by Geoff Nordli 29 Oct '99

29 Oct '99

I am trying to get "ZPyGreSQLDA 0.03" connection working, and have a few questions about installation. I can connect to the database, but am unable to run any queries against it. I was reading some of the archived mail, and Bruce Elrick states that you just have to install the product in the /lib/python/products directory, and restart Zope. This is supposed to work. In the README.txt file you have to do what Bruce says, and compile some code: make -f Makefile.pre.in boot make then copy the file _pgmodule.so from the src to the ../src Which is right? I have RH 6.1, Zope RPMs from Jeff, + all the Postgres RPMs from RedHat. thanks, Geoff Nordli

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Re: [Zope] External Methods ->syntax + file access = how ?
by Jonothan Farr 29 Oct '99

29 Oct '99

I think when you're accessing external files in general it's a good idea to use fully qualified paths. -jfarr ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Hi! I'm a signature virus. Copy me into your .sig to join the fun! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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RE: [Zope] Obtaining URL of Object w/Non-Var Name
by Brian Lloyd 29 Oct '99

29 Oct '99

Jeff, try this and let me know if it does the trick: <dtml-var "_.getattr(this(), 'site.css').absolute_url()"> Brian Lloyd brian(a)digicool.com Software Engineer 540.371.6909 Digital Creations http://www.digicool.com > Alright, what's the trick to be able to retrieve the URL of a > Zope object > via DTML whose id has blanks or punctuation in it? For example, > in a normally-named object called 'site_css', I'd do: > > Ex. 1 > <LINK REL=stylesheet HREF=<dtml-var > "site_css.absolute_url()"> TYPE="text/css"> > > But if the object is named 'site.css', I can use it w/o > another layer/call or escape code. > I tried the following (and a lot of others) and the _[] > expression is returning a string, > which then fails when it lacks a 'absolute_url' attribute: > > Ex. 2 > <LINK REL=stylesheet HREF=<dtml-var > "_['site.css'].absolute_url()"> TYPE="text/css"> > > Any solution must work with acquisition, as example one does, > so I can keep > the stylesheet in the site root folder. > > -Jeff Rush > > > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://www.zope.org/mailman/listinfo/zope > > (Related lists - please, no cross posts or HTML encoding! > > To receive general Zope announcements, see: > http://www.zope.org/mailman/listinfo/zope-announce > > For developer-specific issues, zope-dev(a)zope.org - > http://www.zope.org/mailman/listinfo/zope-dev ) >

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External Methods ->syntax + file access = how ?
by Jason Cunliffe 29 Oct '99

29 Oct '99

Trying to get PIL [Python Imaging Library. http://www.pythonware.com/products/pil/ ] and other modules to work via Zope External Methods. But so far getting hung up on some simple understanding about Python and Zope. Searched archives, but I could find the answer. When testing outside of Zope, from python shell such as Idle, everything works OK. But inside Zope I keep getting file, URL, or resources not found - error messages, whenever I try to open an image into my python code. Seems like it's either blocked by security checks and/or I am making newbie path mistakes. I've tried a lot of variations with setting paths, experimenting with os.chdir(), and checking the files visible to my code using os.listdir(os.getcwd()). I can import the PIL modules and see the files I want to open in the 'Extensions' folder, but can't open them. At present, all the PIL files are in the 'Extensions' folder, but I understand from the ZCMG that I could also put them in 'Shared'. The ZCMG says that I can create a folder in 'Shared' with company or personal name and then this will be automatically referenced by zope. What is not clear to me what name, why and what do I ave to do to tell zope about the folder name I have created there.? Most of PIL is just python and suffices to parse the image headers, but for image processing, PIL uses a platform-specific library (ie: _imaging.dll on Win32). Where should this go on a ZopeSite? And what is my path needs to import PIL. minimal external method for testing : #pil_test.py import os, sys import Image def pil_test(self): infile = 'animage.jpg' im = Image.open(infile) return im.size, im.format, im.mode won't work: errors as above. ..So I tried opening a simple text text file in 'Extensions' and that failed. Is this illegal?? How do I use python external method to 'open' any file.? Do I have to import htmllib or somesuch and use that to point at my ZopeSite or elsewhere? I've already tested this with loading and displaying local and remote HMTL pages in open. fun,very cool. What syntax will directly load Zope 'Image' objects into Python external methods. The zope error messages reference line 110 of Image.py and line 716 of ImageFile.py So far I 've come up with 4 possibles: 1. The namespace of Zope 'Image' is getting confused by imported PIL 'Image' 2. What I am doing is illegal 3. I am in wrong path 4. Dumb newbie typos I am very keen to get this working, so that we can get on with creating a set of nice Zope image processing methods. These can allow much friendlier end-user uploading of images with automatic linked indexes, thumbnailing, sending e-mail to user groups of images, image compositing etc. Thanks in advance for any tips - Jason Cunliffe ------------------------------------------------- Jason Cunliffe <jasonic(a)nomadicsltd.com> NOMADICS.STUDIO(Design Director) Geo-Digital Arts and Technology Le Vieux Moulin, Route de Mons 83440 SEILLANS, FRANCE Tel: +33 (0)4 94.76.98.72 Fax: +33 (0)4 94.76.97.77

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