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Tutorial request
by Tom Deprez 21 Oct '99

21 Oct '99

Hi everybody, I'm wondering if somebody already created this and wants to learn it to everybody. It's about a very basic thing, but which lot's of people could learn from. I want to creat a Address-book in Zope. A person can add, edit or delete his address. He can view all adresses and sort them by first/last name, zip-code. How will we have to start implementing this? What's the best way? Put all the addresses into Zope or into a database? Do we need Python? Or can everything be done with ZClasses? Anybody ideas or wants to write a tutorial? If not, I'll write the tutorial, but before that, I need someone (or more) who will create this application into Zope. I don't know, but I think that this example will help newbies a lot... Tom.

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Zcatalog and PrincipiaSearchSource with Zclasses ?
by Geir B Hansen 21 Oct '99

21 Oct '99

>From what i gather, the PrincipiaSearchSource variable let you do a full text search in DTML-documents and methods... It seems, though, that this doesn't work with Zclass-instances.. Is there any way to do a full text search of Zclass instances ?? for example i'd like to be able to search among my 'newsdoc' instances, not only by title, author or content, but with a single form-field.. Is this possible ?? ------------------------------------------------ Geir B Hansen geirh(a)funcom.com Web-designer / Graphic artist Funcom Oslo ------------------------------------------------

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Acquisition Problem
by James W. Howe 21 Oct '99

21 Oct '99

I have a Folder structure which looks something like this: FolderA FolderB FolderC In FolderA I have a DTMLMethod which iterates over all of its subfolders and invokes a method for each folder in turn called "sidebarTitle". The actual implementation of sidebarTitle resides in FolderA. It does some work and then attempts to invoke methods which are defined in FolderB and FolderC. When the iterating method gets invoked in FolderA it properly invokes the sidebarTitle method. However, when the sidebarTitle method tries to invoke the methods which are defined in FolderB and FolderC I get a KeyError message. I can't figure out why the DTMLMethod isn't being found. My actual code looks like this: DTMLMethod rsidebar (Defined in FolderA) <dtml-let originator=id> <dtml-with FolderA> <dtml-in "objectValues(['Folder'])" sort=folderOrder> <dtml-var "sidebarTitle(sender=id, base=originator)"> </dtml-in> </dtml-with> </dtml-let> DTMLMethod sidebarTitle (Defined in FolderA) <dtml-if "sender == base"> <dtml-var expandedSidebar> <dtml-else> <dtml-var simpleSidebar> </dtml-if> DTMLMethod expandedSidebar (Defined in FolderB) Expanded FolderB Content DTMLMethod simpleSidebar (Defined in FolderB) Simple FolderB Content DTMLMethod expandedSidebar (Defined in FolderC) Expanded FolderC Content DTMLMethod simpleSidebar (Defined in FolderC) Simple FolderC Content If I change the code in the sidebarTitle method to simply display text rather than attempting to invoke the expandedSidebar and simpleSidebar methods, the output is what I would expect to see. However, when the methods are used I get a KeyError on simpleSidebar. Any idea on what might be happening? Thanks. James W. Howe mailto:jwh@allencreek.com Allen Creek Software, Inc. pgpkey: http://ic.net/~jwh/pgpkey.html Ann Arbor, MI 48103

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Using "global" images in /root/subfolder
by Stefan Hoffmeister 21 Oct '99

21 Oct '99

Let's assume the following structure of a site /root /global_images mail_png link_png /content some_content (DTML document) In some_content, I would like to use something to the effect of <dtml-var mail_png> to take advantage of the image "mapping" provided by Zope. But how can I address mail_png? The goal is to address a few global images from any location on the site with the least amount of work possible. I am as far as <dtml-var globalImage> in "some_content". "globalImage" is a DTML document in /root that contains <dtml-var graphics.mail_png> to directly access the image. For the less interesting parts <dtml-var "graphics.mail_png"> <dtml-with "graphics"> <dtml-var "mail_png"> </dtml-with> <dtml-with "graphics"> <dtml-with "_.namespace(AName='mail_png')"> <dtml-var "mail_png"> </dtml-with> </dtml-with> <dtml-with "graphics"> <dtml-with "_.namespace(AName='mail_png')"> <dtml-var "_['AName']"> </dtml-with> </dtml-with> works, but unfortunately, <dtml-var "_['AName']"> emits "mail_png" as the *text*, not the image. IOW, I am stuck. Oh, I have no clue how to pass a parameter to the DTML document, so that I can say <dtml-var name="globalImage(AName='mail_png')"> <dtml-var name="globalImage(AName='link_png')"> or whatever works. Please be gentle and explicit. I have next to no idea about Zope and Python and am just trying to "port" an existing static web site to Zope to get started. Thanks!

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Re: [Zope] Using "global" images in /root/subfolder
by Tres Seaver 21 Oct '99

21 Oct '99

Stefan Hoffmeister <Stefan.Hoffmeister(a)Econos.de> wrote: > Given that the content of the globalImage DTML Document is just ^^^^^^^^ If globalImage really is a DTMLDocument, and not a DTMLMentod, then your acquisition chain does not work the way you expect. Haven't-found-a-use-for-DTMLDocument-since-ZClasses-shipped'ly Tres. -- ========================================================= Tres Seaver tseaver(a)palladion.com 713-523-6582 Palladion Software http://www.palladion.com

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RE: [Zope] Distributing product "unmangled"
by Michel Pelletier 21 Oct '99

21 Oct '99

> -----Original Message----- > From: Stefan Hoffmeister [mailto:Stefan.Hoffmeister@Econos.de] > Sent: Wednesday, October 20, 1999 9:01 PM > To: zope(a)zope.org > Subject: [Zope] Distributing product "unmangled" > > My only problem is that my "test-x.x.tar.gz" contains > > __init__.py > product.dat > version.txt These are products developed through the web, not written in Python. The .dat file contains pickles of your products components. > while all other products that I have downloaded so far > contain the "raw", > "unmangled" material, e.g. > > __init__.py > addRedirector_form.dtml > manageRedirector.dtml > VERSION.TXT > ... These are products developed in Python, not through the web. Your products components consist of Python code and other artifacts (such as files containg DTML code). > What am I missing (and how do I get rid of this "mangling")? There really isn't any mangling going on, it's no possible for Zope to generate Python code or assume file names or anything else like that. When you develop a product through the web, you are organizing a set of objects, and the only thing Zope know how to do to distribute these objects is to package them up into pickles. -Michel

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RE: [Zope] List All users with a given permission
by Toby Dickenson 21 Oct '99

21 Oct '99

The manager who modifes the user object could manually flush the cache? Subclass the user object with a ZClass to do this automatically?

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RE: [Zope] Adding CatalogAware objects with the desired path
by Ian Blenke 21 Oct '99

21 Oct '99

> The object is created just fine, but what gets added to the Catalog is: > /Folder/Object1/Folder/Object2 > > Understandably so... but is there a way to have the object added appear in > the Catalog as: > /Folder/Object2 > ?? I'm having that EXACT same problem. > I tried <dtml-call "Object_add(Folder, _, NoRedir=1)">, but this didn't > work. I have a feeling that it's actually the _ namespace that needs to > change, but I'm not sure what kind of change would do what is needed... > > Any hints? If you find any solutions to this, please post it to the list :) - Ian C. Blenke <ian(a)blenke.com> <icblenke(a)2c2.com>

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Re: [Zope] Browser Sticky Fingers
by Jeff Rush 21 Oct '99

21 Oct '99

I'm still chasing the problem, and I got it to work at one point. There seems to be a related bug in Zope in OFS/Image.py, where the conditional test for "modified since X" is backward: ---- cut here ---- ms=REQUEST.get_header('If-Modified-Since', None) if ms is not None: ms=string.split(ms, ';')[0] ms=DateTime(ms).timeTime() if self._p_mtime > ms: RESPONSE.setStatus(304) # Not Modified Since Then return RESPONSE ---- cut here ---- If the object's modification time is (>) than the directive, then it *has* been modified since that time, and the code should *not* return status 304. So I reversed it... And now it works -every other time-. In fact, if I just comment out the entire "If-Modified-Since" stuff, and let every image appear new, it also fails every other time. <grr> By failure, what I mean is that you bring up a GIF image in the browser, and hit reload (no SHIFT key). The first time it updates the image, the second time is receives an HTTP response Content-Length of zero. Under Netscape 4.61 under Linux (HTTP/1.1), this causes the browser to segfault if you then ask it to 'view the source' of that document. Under Netscape 2.02 for OS/2 (HTTP/1.0), it pops up a dialog box that it got an empty document. Under Netscape 4.04 for OS/2 (HTTP/1.1), it spins forever waiting for some data to arrive. And if I run it thru a proxy like Webdebug.py, for tracing, it hangs Webdebug.py, doing a read on a socket that never gets data and you can no longer access Webdebug's HTML logging features since it is blocked. <sigh> I've done two 20-hour days on this so I'm going to bed. If anyone knows the HTTP/1.x spec quite well and can tell me why "IF-MODIFIED-SINCE" request headers can't just be ignored (albeit w/performance hit) with no ill effects, I'd appreciate it hearing about it. Otherwise tomorrow it's into the RFCs... -Jeff Rush P.S. The other gotcha on this problem was that the Expires: header *MUST* be set to the "LAST-MODIFICATION* date. I tried stuffing the current date and the server's "DATE:" header into it with odd results. The time lag btw LAST-MOD and DATE was ~17 secs (human click response time) and the refresh would -fail- for those 17 seconds after an image was modified (browser would not even -ask- for the image), but then work after that (browser would then start sending IF-MODIFIED-SINCE requests). And the tip that holding down the SHIFT key while clicking refresh to bypass the cache was worth it's weight in gold. When I do that, the images -always- update correctly. Turns out doing that causes the browser to never send any IF-MODIFIED-SINCE requests, just simple GETs. On Wed, 20 Oct 1999 11:27:30 +0100, Robin Becker wrote: >In article <199910182316.JAA00991(a)mbuna.arbhome.com.au>, Anthony Baxter ><anthony(a)interlink.com.au> writes >> >>>>> "Jeff Rush" wrote >>> I'm pulling my hair out here over what is probably a simple HTTP issue. >>> I have a Zope method that stuffs a new image into a Zope Image object, >>> based on the content of the page where the method is called. >>> >>> The problem is that the image is not updated until I exit the browser, >>> and then flush all of it's caches manually. >>> >>> I've turned off any proxy support, configured Netscape 4.x with the >>[...] >> >>> Am I missing something simple? >> >>Yep. Browsers suck. They cache images regardless. The disgusting >>hack is to always call your image with the current time in the URL - >>eg. <img src="/your/image/method?dummy_ts=<dtml-var "ZopeTime().timeTime()">"> >>/your/image/method should feel entirely free to ignore dummy_ts. >> >>This way the image has a different URL, and so the browser doesn't >>use a cached one. >> >>When you're producing on-the-fly live statistics as a graph, this >>hideous misfeature is a complete pain in the clacker. >> >>Anthony >I tried to do image reloads with javascript and it doesn't work (it's >the URL that's cached). Seems that some of the surfcam sites use some >kind of java to do this and it seems to work. Real overkill though so >I've reverted to adding a spurious ?timestring as a cache fooler. Causes >the browser to fill up memory and disk caches. >-- >Robin Becker > >_______________________________________________ >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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ZOracleDA isn't imported in Zope
by Alexei Ustyuzhaninov 21 Oct '99

21 Oct '99

I'm sorry for resending this message, but it hasn't falled into mailing list archive and I'm afraid it wasn't received previously.

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