January 2001 - Zope - Zope lists

multiple unknown parameters -> ZSQL
by Lee 10 Jan '01

10 Jan '01

Hi, As usual, I'm finding this one hard to explain... so I've described it with the aid of a diagram @ http://homepages.strath.ac.uk/~aeu97172/hmmmm.htm I realise that this may be more of a burden on your time than a normal request... but I'm hoping that some of you have met similar problems before and can suggest the best way round the problem. Any comments would be greatly appreciated. Thanks very much, Lee -- Lee Reilly mailto:lee.reilly@ntlworld.com ø¤º°`°º¤ø,,,,ø¤º°`°º¤ø,,,,ø¤º°`°º¤ø,,,,ø¤º°`°º¤ø,,,, HAVE SKILLS; WILL TRAVEL. I'm currently looking for an internship in the USA in the field of web development. Ideally, I'm looking for a placement for 3 to 18 months. Can you help? More details, my resume, etc. @ http://homepages.strath.ac.uk/~aeu97172/ </shameless plug>

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RE: [Zope] [Newbie] Can Zope ...
by Farrell, Troy 10 Jan '01

10 Jan '01

Same as ZPL http://demo.worldpilot.com:8080/site/LICENSEWPL.txt -----Original Message----- From: Andy McKay [mailto:andym@ActiveState.com] Sent: Tuesday, January 09, 2001 4:06 PM To: tav; zope(a)zope.org; Smith Ray Subject: Re: [Zope] [Newbie] Can Zope ... I'd personally stay from Worldpilot since AFIAK its not open source. -- Andy McKay. ----- Original Message ----- From: "tav" <tavlists(a)espnow.com> To: <zope(a)zope.org>; "Smith Ray" <Ray.Smith(a)fujitsu.com.au> Sent: Tuesday, January 09, 2001 4:01 AM Subject: Re: [Zope] [Newbie] Can Zope ... > >>>>> SR == "Smith Ray" <Ray.Smith(a)fujitsu.com.au> writes: > > SR> Are there any "Intranet" type packages which have > similar > SR> functionality to what I have quickly described? > > there aren't any intranet packages per se, but there is a > wonderful zope product called worldpilot which you should take > a look at. its available at > http://demo.worldpilot.com:8080/site/ > > it has a very nice web based mail client / calendar / todo / > address book features. that fulfils half of your requirements > in an intranet. for the other half, go out and create something > based on other zope tools, e.g. zwiki / squishdot / ptk > > the drawback is in integrating worldpilot with whatever you > create. the code is definitely not the most manageable, > however, the source is there - so you can do whatever you want > :) > > SR> If I had to build something like this myself would > SR> Zope be the tool of choice? (I'm assuming it would > SR> be since I'm on a Zope list!) > > zope is without doubt one of the best ways to do this. most > important for me is the ability to extend the product in a > rapid and easy manner > > at esp (company i work for), we desperately looked around for > good intranet solutions and ended up making our own 'xnet' > product based on zope. it does pretty much anything you would > want from an intranet, and using zope was definitely the best > decision we made about it. > > i would offer you this product, however, its been made > primarily for internal use, but with a few days work, i guess > it could be be made non-esp centric. pop onto irc > (irc.espnow.com / #esp) if you want to talk about it. > > SR> How long (rough estimate) would something like > SR> this take to develop for a Zope newbie? > > if you dedicate yourself to this, then about two months. zope > has a steep learning curve. but once you get to a certain > level, everything becomes much clearer... that is, until you > want to rise to the next level of zope meisters > > -- > best regards, tav > tav(a)espnow.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 ) > _______________________________________________ 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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Object cleanup: is it possible?
by richard＠bizarsoftware.com.au 10 Jan '01

10 Jan '01

We have a Product that contains images like so: application \ image collection \ image object There's going to be a lot of these images, and sometimes they're going to be big, so we're storing them outside the ZODB. The image object serves the image up in a variety of sizes, each of which is cached on disk alongside the raw image. We have a strong requirement that the only way to manipulate these images is through Zope. Our biggest problem is that there doesn't appear to be a nice way to clean up those files on disk when the Product is deleted from Zope. The obvious solution, using manage_beforeDelete, isn't appropriate, because the rename and cut operations will both result in _delObject which calls manage_beforeDelete. I consider this to be a bad design call since there's no way for _delObject / manage_beforeDelete to know wether the delete is permanent or "just a rename". The next solution, __del__, doesn't work either -- even after a ZODB pack operation, the __del__ method doesn't appear to be called. This also confuses me. What I've done is wrap the manage_delObject[s] method of the image collection object that holds the image objects, and it can call deleteImages on the subobjects. That's fine for actually managing the image objects within the collection, but doesn't help if someone deletes the image collection object. Any suggestions? Richard -- Richard Jones richard(a)bizarsoftware.com.au Senior Software Developer, Bizar Software (www.bizarsoftware.com.au)

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Need help with ZGotW
by LARRY CHUON 09 Jan '01

09 Jan '01

I have Zope-2-2-4 and just install ZGotW. When I try to add ZGotW Issue and ZGotW Root, I receive errors such as "Empty entry when integer expected" or "sequence index must be integer." Thanks in advance. Larry

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dtml-tree and a filtered objectValues
by Jim Hebert 09 Jan '01

09 Jan '01

OK, this works: My DTML Method, "y": <dtml-tree branches_expr="objectValues(['Folder'])"> foo </dtml-tree> If I change z to read as follows, it breaks: <dtml-tree branches_expr="_['y']"> foo </dtml-tree> where y is a DTML Method simply containing <dtml-return "objectValues(['Folder'])"> The error I get is: <STRONG>Error Type: AttributeError</STRONG><BR> <STRONG>Error Value: __getitem__</STRONG><BR> ... Traceback (innermost last): File /usr/local/Zope-2.2.4-src/lib/python/ZPublisher/Publish.py, line 222, in publish_module File /usr/local/Zope-2.2.4-src/lib/python/ZPublisher/Publish.py, line 187, in publish File /usr/local/Zope-2.2.4-src/lib/python/Zope/__init__.py, line 221, in zpublisher_exception_hook (Object: ApplicationDefaultPermissions) File /usr/local/Zope-2.2.4-src/lib/python/ZPublisher/Publish.py, line 171, in publish File /usr/local/Zope-2.2.4-src/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: y) File /usr/local/Zope-2.2.4-src/lib/python/ZPublisher/Publish.py, line 112, in call_object (Object: y) File /usr/local/Zope-2.2.4-src/lib/python/OFS/DTMLMethod.py, line 172, in __call__ (Object: y) File /usr/local/Zope-2.2.4-src/lib/python/DocumentTemplate/DT_String.py, line 528, in __call__ (Object: y) File /usr/local/Zope-2.2.4-src/lib/python/TreeDisplay/TreeTag.py, line 154, in render (Object: a tree tag) File /usr/local/Zope-2.2.4-src/lib/python/TreeDisplay/TreeTag.py, line 260, in tpRender (Object: ApplicationDefaultPermissions) File /usr/local/Zope-2.2.4-src/lib/python/TreeDisplay/TreeTag.py, line 324, in tpRenderTABLE (Object: ApplicationDefaultPermissions) AttributeError: (see above) This is my boiled down example. The real need for this is because I don't wish to use the full objectValues list, I have another DTML Method which does this: <dtml-call "REQUEST.set('tmpa',[])"> <dtml-in "objectValues(['Folder','Redirector'])"> <dtml-let si=sequence-item> <dtml-if "_.SecurityCheckPermission('Reference in NFGnav', this())"> <dtml-call "tmpa.append(this())"> </dtml-if> </dtml-let> </dtml-in> <dtml-return tmpa> So, for those who are interested in the story, I've been using NFGnav, and have a fair amount of effort invested in marking things as Reference in NFGnav or not, and would like to move to a dtml-tree which respects that setting. The dtml method above gives me a subset of objectValues, those which are maked 'Reference in NFGnav.' Note, also, that this works (stolen from someone on zope.org's tips for debugging a tree): <dtml-in "_['nfgObjectValues']" sort=sortkey> <<stuff>> <dtml-in "_['nfgObjectValues']" sort=sortkey> <<same sort of stuff>> </dtml-in> </dtml-in> where nfgObjectValues is the dtml method above. Any help? Is this a bug in dtml-tree, given that it pukes on something that dtml-in doesn't? Thanks, jim

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slow DocumentTemplate (dtml) import speed
by Federico Grau 09 Jan '01

09 Jan '01

Hello, I am using the DocumentTemplate (dtml) portion of zope in a python program using cgi. The "import DocumentTemplate" step alone seems to take almost 1 (ONE) second on my hardware. This seems extremely high compared with the load time of python alone of about 0.3 seconds. To benchmark this, I made a simple test python script (time_test.py): #!/usr/bin/python import time t1 = time.time() ###import DocumentTemplate t2 = time.time() print "t1:%s t2:%s diff:%s" % (time.ctime(t1), time.ctime(t2), t2 - t1) Run as "time ./time_test" with the DocumentTemplate line commented out, the script takes an average of 0.330 seconds real time. If I uncomment the import statement, the script takes an average of 1.350 seconds real time and a 'diff time' of 0.9 seconds representing time spent importing DocumentTemplate. Now, I hope not to be laughed out of the list :-D, but my hardware is a Pentium 100 with 48 Meg of ram. I am running redhat 6.2 with python 1.5.2. My DocumentTemplate is extracted from Zope 2.2.2 and placed in my 'site-packages' directory. My questions: - Do people have any suggestions on how to make this process any quicker? - Are there any plans to speed up/optimize DocumentTemplate (I see there is already a cDocumentTemplate file, not sure what else can be done)? - I see there is a new version of Zope (2.2.5), does it have any major speed improvements in DocumentTemplate (the changelog and history files did not reflect this)? thanks, donfede

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broken products not indicated after Zope 2.2.5 install
by Fred Yankowski 09 Jan '01

09 Jan '01

I just installed a full copy of Zope 2.2.5 onto my NT 4.0 SP 6 machine and then copied over my data.fs* files from Zope 2.2.3. Zope 2.2.5 comes up OK after that, but none of the Products in the Control Panel / Products folder is shown as broken, even though I have yet to copy over the dozen or so products that I had added onto Zope 2.2.3. Of course, other objects that depend on those products fail and some of those do display a "broken" icon and state. But why don't the incomplete products themselves get flagged as broken? -- Fred Yankowski fred(a)OntoSys.com tel: +1.630.879.1312 Principal Consultant www.OntoSys.com fax: +1.630.879.1370 OntoSys, Inc 38W242 Deerpath Rd, Batavia, IL 60510, USA

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Re: [Zope] RSS and JavaScript
by LARRY CHUON 09 Jan '01

09 Jan '01

John, You were right. There was a typo in my javascript. I was very and decided to retype the entire script all over again. It turned out that I left out a angle bracket. Thanks for your help. Larry On Sun, 07 January 2001, John Morton wrote: > > On 7 Jan 2001 17:51:24 -0800 LARRY CHUON <lchuon(a)telocity.com> wrote: > > > Hi Zopistas, > > > > Happy New Year! > > > > I'm working with SiteSummary and would like htmlPreview to grab the URL > > and open it up in a new window. It's not working correct. I'm unsure > > how Zope handle javascript either. > > Zope handles javascript in the same way it handles html - it just sends > it to the client and let's the browser figure out what to do with it. > DTML, on the other hand, is interpreted beforehand, and the results are > sent to the browser. > > > Any help is greatly appreciated. > > Below is my htmlPreview. I also tried to put the javascript function > > (I'm new to js as well) in a file and import it to the same directory as > > standard_html_header. Then I add <SCRIPT LANGUAGE="JavaScript" > > SRC="openMe.js"></SCRIPT> to stand_html_header. That doesn't work > > either. By the way, js doesn't seen to work well in Zope. I could n't > > find much info on-line. > > [cut] > > <P><A href="javascript:openMe('<dtml-var url html_quote>')"><dtml-var linktext html_quote></A> > > My understanding of what happens when this link is traversed is that the > browser calls the javascript function 'openMe(...)', which should already > defined in the page. It doesn't attempt to fetch anything from the server > with that URL. > > So what you need to do is ensure that htmlPreview include the function > openMe by either including the code into the html document like this: > > <script language="JavaScript"> > <dtml-var name="openMe_js"> > </script> > > (note that I've replaced the dot in openMe.js with an underscore, as > objects with dots in there ids need to be quoted to be used, and > 1) I've forgotten how to do it > 2) Searching through the documentation has given me a headache > ) > > ...Or do what you did before: > > <SCRIPT LANGUAGE="JavaScript" SRC="<dtml-var expr="openMe_js.absolute_url()">"></SCRIPT> > > Use the absolute_url() method, so that the browser is sure of getting the > right url for the script (which may have been your problem before). > > I'd use the first method as you can at least eyeball the html output of > htmlPreview and see if the openMe function has acutally been include, > before having to use whatever passes for javascript debugging in your > browser. > > HTH, > John

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Currency formatting
by Menard.Jean-Francois＠hydro.qc.ca 09 Jan '01

09 Jan '01

I would like to output currency as: 1 300 459,63$ I looked at the documention, and I cannot figure how to: - Place spaces instead of commas as thousand separators. - Replace the dot by a comma for the decimals. Any clues? Jean-François Ménard Intranet DPAS Pratiques d'affaires et orientations * (514) 840-3000 poste 3939 * (514) 840-5585 * menard.jean-francois(a)hydro.qc.ca * 855 Ste-Catherine est, 6e étage Montréal, Qué. H2L 4P5

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[Newbie] Can Zope ...
by Smith Ray 09 Jan '01

09 Jan '01

[Note: I assume posts can't be made using the egroups web post form? I see the note that it is a remote list, but if posts never work maybe a note specifically stating it is an archive only should be displayed?] Hi, Yesterday I saw a demo of an Intranet package a company wants the company I work for to resell. It looks like a nice little package but very expensive for the functionality available. I'm sure Zope can be setup to do everything this can do but I want to ask how difficult it would be to create myself and if any current packages exist that have the same or similar functionality. The features (or limitations) of the package I saw are: * Runs on Windows NT/2000 only. (Zope can + many others) * Uses MS IIS only (I believe Zope can use IIS + built in web server + others) * Uses MS SQL Server (I believe Zope can + built in DB + others) * Allows non technical people to create content plus add users / managers etc without any HTML knowledge or knowledge outside of the package. * Has good security system allowing users to belong to groups which "may" have different content. Also managers have profiles allowing the restriction of content and actions performed. * Has a news module with multiple classes of news. * Has a basic calendar system. * Has a basic messaging system. * Has a basic knowledge base ... allows free format text to be entered and later searched. * Allows external documents to be loaded associated with a group where keywords can be manually entered. These documents can then be opened or downloaded if users have correct permissions. * Basically all content added can be added to specific groups, and if you don't have access that that group you don't have access to that content. There are probably a few things I missed but you get the idea. The cost thrown up in the air was in the order of $AUS20,000 for a 3 year rental, per site!!!! (At the moment that is about $US35,000) When you start talking dozens of sites you quickly start looking for alternatives! My initial thought was Zope, I knew it existed and assumed with a good design and few months work a could produce similar results with a fraction of the costs. Okay, sorry for the long email ... my questions ... Are there any "Intranet" type packages which have similar functionality to what I have quickly described? If I had to build something like this myself would Zope be the tool of choice? (I'm assuming it would be since I'm on a Zope list!) How long (rough estimate) would something like this take to develop for a Zope newbie? (Assume say 10 viewable screens and 10-20 maintenance screens with 5-30 fields per screen. I have programming (Cobol, VB, etc), HTML, DB and analysis experience) Thanks for reading so far and thanks for any responses. Ray Smith

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