February 2000 - Zope

AUTHENTICATED_USER in ZSQL
by Ulrich Wisser 19 Feb '00

19 Feb '00

Hello, I tried to use the AUTHENTICATED_USER object in a ZSQL method. Like: INSERT INTO MYTABLE(USER) VALUES('<dtml-var "AUTHENTICATED_USER.getName()" sql_quote>') But Zope tells me that AUTHENTICATD_USER is not known. Why that? Thanks Ulli -- ----------------- Die Website Effizienzer ------------------ luna-park Bravo Sanchez, Vollmert, Wisser GbR Ulrich Wisser mailto:u.wisser@luna-park.de Alter Schlachthof, Immenburgstr. 20 Tel +49-228-9654055 D-53121 Bonn Fax +49-228-9654057 ------------------http://www.luna-park.de ------------------

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[ZGotW] ZGotW#4 -- addendum: ReportLab announcment
by Tres Seaver 19 Feb '00

19 Feb '00

*clipped from comp.lang.python. TS* ReportLab, Inc. (http://www.reportlab.com/) is a new company formed on January 21st to develop a new generation of reporting tools for the web and print. The team includes Andy Robinson (CEO and Chief Architect), Aaron Watters (Chief Technical Officer), Robin Becker (Quantitaive Analyst) and Gordon McMillan (Technical Consultant). ReportLab has seed capital and its first customer, and is opening offices in New Jersey and London. The core product is the ReportLab PDF library (formerly known as "pdfgen"). This can be used for - dynamic PDF reporting in real time on the Web - back office forms generation and database reports - adding a cross-platform 'Print Preview' capability to applications - electronic publishing In addition to this, the company has strong general expertise in all aspects of Python development, and will be working on data acquisition and transformation tools, and platform independent graphics solutions. Unlike other PDF generation libraries, ReportLab is intended to go beyond the 'Canvas' level to handle page layout with flowing text and frames, and XML-to-PDF conversion. ReportLab is, and will remain, 100% Open Source. It runs now, but we are seeking intensive feedback on the page layout API over the next few weeks from as wide a developer base as possible before 'freezing' the API. And of course there are many, many more features to add. The company is planning to generate revenue from consulting, service, support and training. There are two main forks to the plan: - an Open Source strategy aimed at making ReportLab a pervasive standard - developing an integrated commercial "Enterprise Reporting Engine" for portals and financial institutions To this end we will be working with 2-3 strategic customers over the next six months. The support arrangements are as follows: 1. The ReportLab library (formerly known as pdfgen) is available from http://www.reportlab.com/ 2. The latest development code is under CVS at http://reportlab.sourceforge.net 3. The mailing list for all discussion is reportlab-users(a)egroups.com. Go to http://www.egroups.com/group/reportlab-users to sign up. Andy Robinson CEO, ReportLab Inc. -- ========================================================= Tres Seaver tseaver(a)palladion.com 713-523-6582 Palladion Software http://www.palladion.com

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Re: Re: [Zope] WorldPilot Calendar function error
by WorldPilot Helpers 19 Feb '00

19 Feb '00

> > On 18-Feb-2000 Bill Anderson wrote: > > I was getting anytime after either adding an event, or accessing > > (attempting to) a shared calendar. I upgraded, renoived the Event > > folders, and now I don't get the error. Unfortunately, I get the > > date-2days problem, and see _none_ of the newly added events, even after > > a logout. > > Add this to the top of your Zope startup script and this will take care of it. > > TZ> export TZ > > They are assuming you run your clock off GMT (which many people don't) > Thanks Adam. I'll add that to the instructions as a temporary workaround. Nevertheless, we do want to try to get it to run without this depency. Since we're in GMT+1 it didn't misbehave in this way. Cheers, Ryan > -- > M. Adam Kendall | > mak(a)kha0s.org | "There's never enough time to do > http://kha0s.org | all the nothing you want." > | --Bill Watterson (Calvin and Hobbes) > > _______________________________________________ > 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 ) > > --------------------------------------------------- WorldPilot - Get Synced - http://www.worldpilot.org The Open Source Personal Information Manager Server Powered by Python and Zope - http://www.zope.org

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Re: [Zope] WorldPilot Calendar function error
by WorldPilot Helpers 18 Feb '00

18 Feb '00

> First off let me say that WorldPilot its slick. I have been banging on it for a Thanks! > while and I can't seem to get around the following problem. Whenever I add > an event to the calendar I get the error message and traceback shown below. > > I have tried a variety of combinations. This particular instance was with no > adjustments to the date-time defaults. As far as I can tell its croaking on the > redisplay. > > Ryan are you out there? Any suggestions? Anyone else on the list used > WorldPilot's calendar without a problem? I'm here :-) > > TIA for any suggestions. > > ------------start of error message------------ > Zope Error > > Zope has encountered an error while publishing this resource. > > exceptions.KeyError > > Sorry, a Zope error occurred. > > Traceback (innermost last): > File /usr/local/zoperoot/Zope-2.1.4-linux2-x86/lib/python/ZPublisher/Publish.py, line 214, in publish_module > File /usr/local/zoperoot/Zope-2.1.4-linux2-x86/lib/python/ZPublisher/Publish.py, line 179, in publish > File /usr/local/zoperoot/Zope-2.1.4-linux2-x86/lib/python/ZPublisher/Publish.py, line 165, in publish > File /usr/local/zoperoot/Zope-2.1.4-linux2-x86/lib/python/ZPublisher/mapply.py, line 160, in mapply > (Object: manage) > File /usr/local/zoperoot/Zope-2.1.4-linux2-x86/lib/python/ZPublisher/Publish.py, line 102, in call_object > (Object: manage) > File /usr/local/zoperoot/Zope-2.1.4-linux2-x86/lib/python/Products/WorldPilot/Components/Events.py, line 278, in manage > File /usr/local/zoperoot/Zope-2.1.4-linux2-x86/lib/python/Products/WorldPilot/Storage/LocalStorage.py, line 955, in manage > File /usr/local/zoperoot/Zope-2.1.4-linux2-x86/lib/python/Products/WorldPilot/Storage/LocalStorage.py, line 893, in addItem > File /usr/local/zoperoot/Zope-2.1.4-linux2-x86/lib/python/Products/WorldPilot/Components/Events.py, line 261, in listview > File /usr/local/worldpilot/Zope-2.0.1-linux2-x86/lib/python/Products/WorldPilot/Components/Objects.py, line 91, in displayIfLoggedOn > File /usr/local/zoperoot/Zope-2.1.4-linux2-x86/lib/python/Products/WorldPilot/WorldPilot.py, line 2147, in displayIfLoggedOn > (Object: RoleManager) > File /usr/local/zoperoot/Zope-2.1.4-linux2-x86/lib/python/Products/WorldPilot/WorldPilot.py, line 367, in callResource > File /usr/local/zoperoot/Zope-2.1.4-linux2-x86/lib/python/Products/WorldPilot/Resource.py, line 137, in callResource > File /usr/local/zoperoot/Zope-2.1.4-linux2-x86/lib/python/DocumentTemplate/DT_String.py, line 502, in __call__ > (Object: <string>) > File /usr/local/zoperoot/Zope-2.1.4-linux2-x86/lib/python/DocumentTemplate/DT_String.py, line 502, in __call__ > (Object: <string>) > File /usr/local/zoperoot/Zope-2.1.4-linux2-x86/lib/python/DocumentTemplate/DT_Util.py, line 335, in eval > (Object: getCalendar(-86400+getMonthStartLong(GMTDayLong(+0,REQUEST)), REQUEST> (Info: GMTDayLong) > File <string>, line 0, in ? > File /usr/local/zoperoot/Zope-2.1.4-linux2-x86/lib/python/Products/WorldPilot/Components/Events.py, line 783, in getCalendar > File /usr/local/zoperoot/Zope-2.1.4-linux2-x86/lib/python/Products/WorldPilot/Components/Events.py, line 352, in getIncludedEvents > KeyError: DTEND > ---------------------end of error message------------------------- > It looks like during intial setup and tinkering with WorldPilot empty data get's entered into the Events file of that user. Please send me the contents of /var/spool/worldpilot/storage/<user>/Events so that we can find out what and how it happens, since I haven't had this problem yet. The quick solution to the problem is to remove the /var/spool/worldpilot/storage/<user>/Events folder, shut down Zope, restart and relog onto WorldPilot. The Events folder and contents will be recreated (empty). I assume this helps, at least I haven't received negative feedback yet. Does everybody run into this problem on initial setup? Cheers, Ryan > > -- > Jack Ungerleider > The Ungerleider Group > Creative Solutions for Cooperative Computing > jack(a)jacku.com > www.jacku.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 ) > > --------------------------------------------------- WorldPilot - Get Synced - http://www.worldpilot.org The Open Source Personal Information Manager Server Powered by Python and Zope - http://www.zope.org

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Re: [Zope] ZDiscussions ... continue
by Darcy Clark 18 Feb '00

18 Feb '00

Thanks to Petru I am up to speed now and have a semi-working Discussion group online....unfortunately the "plus" buttons to open the threads within a topic are returning a Zope error. The latter part of the traceback follows : File D:\Zope\MSEWWW\lib\python\DocumentTemplate\DT_String.py, line 502, in __call__ (Object: menu) File D:\Zope\MSEWWW\lib\python\TreeDisplay\TreeTag.py, line 154, in render (Object: a tree tag) File D:\Zope\MSEWWW\lib\python\TreeDisplay\TreeTag.py, line 222, in tpRender (Object: ElementWithAttributes) File D:\Zope\MSEWWW\lib\python\TreeDisplay\TreeTag.py, line 543, in apply_diff (Info: ([None, (['AAAAAAAAANA=', []],)], ['AAAAAAAACIs='])) AttributeError: 'tuple' object has no attribute 'append' is this familiar to anyone ? thanks in advance, Darcy -- --------------------------------------------------- Ph: (734) 764 3377 Email: darcyc(a)engin.umich.edu URL: http://www-personal.engin.umich.edu/~darcyc/ --------------------------------------------------- 'If you're not part of the solution, you're part of the precipitate' ..... Steven Wright

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SybaseDAv2 with Sybase 11.0.3.3?
by Scott Anderson 18 Feb '00

18 Feb '00

Hi all, I'm trying to build the new DC Sybase DA, but there are a number of #defines missing from my ctpublic.h file since I'm use Sybase 11.0.3.3. Has anyone else gotten it to compile/work with 11.0.3.3? Thanks, -scott

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BannerFolder ( wasRe: [Zope-dev] TIP: Must enable 'new' for FreeBSD Python 1.5.2 port to install PythonMethods)
by Petru Paler 18 Feb '00

18 Feb '00

On Fri, Feb 18, 2000 at 02:54:13PM -0700, Bill Anderson wrote: > > > reinstall. Once I did that, PythonMethods comes up fine and other products > > > (like BannerFolder-0.3) that rely on it, install as well. > > > > As a side note. *Don't* use BannerFolder's counters. You will get the > > banner copied for each impression :-/ > > > What Counters? Are you talking about the hits, views, or remaining_views > ? > Inguiring minds need to know. :) All of them. Incremeting a property causes a transaction -> one more copy of the banner. > > FWIW, I am in the middle of a 'rewrite' of that product. I am adding the > ability to 'weight' banners, view reports, and track click-throughs. > Other changes are that it is being written in Python instead of > ZClasses. Then you'd better use something else for the stats (SQL, flat files, whatever). -Petru

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Re: [Zope] methods of a few zope objects
by Tres Seaver 18 Feb '00

18 Feb '00

Andrew <ad4v(a)yahoo.com> wrote: > Greetings: I'm looking for documentation on the methods and variables > of a few internal zope objects, so I can use them in external python > code. > > Namely the file object, the image object, and the DTML method object. I > have no problem poking through source code, if I know which file to > look in. Haven't found anything concise in the documentations. You want the Zope Quick Reference: http://www.zope.org/Members/ZQR -- ========================================================= Tres Seaver tseaver(a)palladion.com 713-523-6582 Palladion Software http://www.palladion.com

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Re: [Zope] Python object lifecycle?
by Tres Seaver 18 Feb '00

18 Feb '00

Robb Shecter <shecter(a)darmstadt.gmd.de> wrote: > > Jerry Spicklemire wrote: > > > Not to start a "what IS client server?" discussion (I thought we got past > > that in the last millenium), > > Yes. > > > but it looks to me like Zope IS the middle > > layer. > > > > Hmmm... I don't know about that. I guess it can be... > > > > > In terms of layers, the browser "front end" handles presentation (client), > > the "back-end" (data server, host) is an RDB, or CD tower (of image files), > > or whatever, then the integration layer "middle" is Zope. > > I disagree. (OK, I admit that this is somewhat silly, because there's really > many layers here, and what we call them isn't all that important.) > > A browser is a weird thing. It's not really a full client on it's own, since > DHTML / Javascript really sort of died. Now, a Java applet in a browser -is- > a front-end to me. But, using just plain html in the browser means that the > front end must be split between the client and server. > > So, what you get is this: > > { "Pure-HTML" in browser scenario } > > Name: Front End > Responsibilities: Reacting to user input, rendering information > Location: Split between a web browser and an HTML/HTTP server. (CGI, Zope, > Servlet, etc.) * DTML, which creates the "presentation" of underlying Python objects, handles this role. > > Name: Middle Tier > Responsibilities: Business Logic. Ie: user authentication, rule enforcement, > brokering, trading, bus-like behavior. > Location: On the same or different computer as the HTML/HTTP server. * ZClasses and Python products fill the "business logic" role * The Zope framework handles security (authentication and authorization). * ZCatalog does some of what I think you mean by brokering and trading. * ZPublisher is an ORB, so it does some brokering and provides the "bus" (again, if I understand you). > > Name: Backend / Datastore ZODB and ZSQL handle this (along with the various Storage implementations underlying ZODB). > ..... > > So, the issue here seems to be that Zope absolutely does the Front-End stuff. > (Plain old content management, style-like HTML rendering, etc.) But, the real > questions are does / should / can Zope do the middle tier stuff? > > Usually it's nice middle tier is a long running process. It can be programmed > in an OO style, and in a *stateful* manner. It is generally *essential* in any system big enough to yield ROI for n-tier. > > It looks like Zope's answer here is to write Python classes that get used as > external methods. What's not clear to me is how these Python objects live and ^^^^^^^^^^^^^^^^^ -- see above: most will be in Python products or ZClasses. > die, and when. * Some objects are "persistent," that is, their lifetime extends beyond the boundary of the transaction which creates them. These are normally stored in the ZODB, which handles the incarnation/etherialization of them trans- parently, based on demand. Any object which can be manipulated through the managemement interface falls under this heading. * Other objects are "transient," created to handle a given request; they die when the request terminates. E.g.: - Results objects created from a ZSQL method (the "brains" object) - The REQUEST and RESPONSE objects themselves. In conclusion, I would say that, by your crieria, Zope partakes of all three layers; by Jerry's, Zope is the middle tier (I would guess that Jerry would call ZODB's storage back-end, though). -- ========================================================= Tres Seaver tseaver(a)palladion.com 713-523-6582 Palladion Software http://www.palladion.com

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Re: Re: [Zope] WorldPilot Calendar function error
by WorldPilot Helpers 18 Feb '00

18 Feb '00

> Jack Ungerleider wrote: > > > > First off let me say that WorldPilot its slick. I have been banging on it for a > > while and I can't seem to get around the following problem. Whenever I add > > an event to the calendar I get the error message and traceback shown below. > > > > I have tried a variety of combinations. This particular instance was with no > > adjustments to the date-time defaults. As far as I can tell its croaking on the > > redisplay. > > > > Ryan are you out there? Any suggestions? Anyone else on the list used > > WorldPilot's calendar without a problem? > > > > TIA for any suggestions. > > > I'll confirm this. I've been getting it since the betas. > > It seems to happen whenever I go to access a shared calendar. > :( I'd like to look into the problem. Does you calendar work when you look into your own? Do you only get an error when accessing a shared calendar? the called Frame info (URL) might be handy, too. Cheers, Ryan > > -- > In flying I have learned that carelessness and overconfidence are > usually far more dangerous than deliberately accepted risks. > -- Wilbur Wright in a letter to his father, September 1900 > > _______________________________________________ > 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 ) > > --------------------------------------------------- WorldPilot - Get Synced - http://www.worldpilot.org The Open Source Personal Information Manager Server Powered by Python and Zope - http://www.zope.org

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