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Publishing Python Objects with External Methods versus publishing Python objects Python objects
by Ben Derstine 07 May '99

07 May '99

I'm trying to understand the distinction between External Methods and directly publishing Python objects. The various tutorials on Zope discuss publishing objects and there is one on External Methods. Can objects be published without using External Methods? Benjamin L Derstine Network Administrator Real Education, Inc. 10200 A East Girard Avenue Denver, CO 80231 e-mail: bend(a)realeducation.com phone: 303-873-7400 fax: 303-873-7449 http://www.realeducation.com "The Leader in Online Education over the Internet"

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RE: [Zope] Z Classes Tutorial: Rough Draft
by Paul Everitt 07 May '99

07 May '99

Jordan wrote: > The ZClasses are going to really change a lot of things with how most > Zope projects are implemented I would think. One issue I'm > interested in > that you'll probably address fairly soon is how to migrate > existing code > to the ZClasses framework. I would assume you can place > External Methods > into the Methods area of the ZClass? Yep. For instance, imagine a Z Classes-based User object (that goes in a user folder). Imagine you drop in an external method that graps information about the user and, when called, gets more information from [LDAP|NIS|NT SAM|SQL]. The external method is a behavior of the class which gets information about an instance. Pretty neat! Some other things on the drawing board (but not any time soon): 1) Security on Property Sheets. Imagine creating a Membership system where you wanted to sell upsell levels to Members. If a person owns their Member object (so they can change their email address and other properties), then what stops them from changing the upsell level? With access control on property sheets, you segregate the privileged properties to a sheet which they can't edit. 2) Property Sheets, schemas, and forms. Imagine properties being richer objects with things like: o constraints -- don't let values over 100 in here o title -- when used in an input form or report, display this o widget -- what HTML widget to use when collecting info (e.g. SELECT) With this information you can create better wizards to help make forms. 3) Better wizards. Jim has cooked up one and we talked about what else we can do. For instance, have a multi-step wizard (like Z Tables) that asks questions and provides information, such as: o Step 1 -- Here is an overview of what we are going to do o Step 2 -- What do you want to call this class o Step 3 -- Do you want to base your class on other classes? o Step 4 -- What are the basic properties to collect when adding a new Foo? o Step 5 -- What are the types of the properties you named? o Step 6 -- Create o Step 7 -- Finish (or advanced, such as views) ...and splat, you have a new Foo class. I'm hoping to get this in range of people that want to "store their kinds of things". All of this is at least a couple of months off, unless someone submits patches :^) Thanks for the input! --Paul

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RE: [Zope] Could we migrate Zope email to a news group?
by pj＠sam.engr.sgi.com 07 May '99

07 May '99

| From: Michel Pelletier <michel(a)digicool.com> | > Philip Aylesworth wrote: | > > How about just a good web archive/search for the mailing list? | > I totally agree with this. | | As do I, I believe it's the best interface. The only newsgroup I read | is comp.lang.forth. Will others be able to mirror (if that's the right word) this news group? That is, will I have to use the web site to read this news, or can I ask my news administrator (I'm within SGI) to pick up this news group along with the 100's of other top level news hiearchies served by our internal news servers. I would guess that this is the same question that someone could ask about DejaNews -- will such an interface (a good web archive/search) let them pick up this as a news group (or groups)? If yes, then good. If not (if neither DejaNews nor SGI's internal news servers can provide this, and only by visiting the primary web site can one view it in a news-like way, then oops -- doesn't work for what I was hoping for. ======================================================================= I won't rest till it's the best ... Software Production Engineer Paul Jackson (pj(a)sgi.com; pj(a)usa.net) 3x1373 http://sam.engr.sgi.com/pj

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External Method
by Dmitry B. Khlonin 07 May '99

07 May '99

I tried to create External Method from start_dtml:  login.py: def methLoginUser(): return "I dont know" but view of start_dtml is dangerous: System Unavailable This site is currently experiencing technical difficulties. Please contact the site administrator for more information. For additional technical information, please refer to the HTML source for this page. Thank you for your patience. what it mean? trying to view traceback information I see: Traceback (innermost last): File C:\Program Files\WebSite\lib\python\ZPublisher\Publish.py, line 877, in publish_module File C:\Program Files\WebSite\lib\python\ZPublisher\Publish.py, line 590, in publish (Info: /start_dtml) File C:\Program Files\WebSite\lib\python\OFS\DTMLDocument.py, line 212, in __call__ (Object: start_dtml) File C:\Program Files\WebSite\lib\python\OFS\DTMLDocument.py, line 208, in __call__ (Object: start_dtml) File C:\Program Files\WebSite\lib\python\DocumentTemplate\DT_String.py, line 513, in __call__ (Object: start_dtml) File C:\Program Files\WebSite\lib\python\DocumentTemplate\DT_Util.py, line 266, in eval (Object: manage_addExternalMethod('Method1','sss','login','methLoginUser')) File <string>, line 0, in ? File C:\Program Files\WebSite\lib\python\Products\ExternalMethod\ExternalMethod.py, line 127, in manage_addExternalMethod (Object: ApplicationDefaultPermissions) File C:\Program Files\WebSite\lib\python\Globals.py, line 227, in __call__ (Object: manage_main) File C:\Program Files\WebSite\lib\python\DocumentTemplate\DT_String.py, line 513, in __call__ (Object: manage_main) File C:\Program Files\WebSite\lib\python\Globals.py, line 227, in __call__ (Object: manage_tabs) File C:\Program Files\WebSite\lib\python\DocumentTemplate\DT_String.py, line 513, in __call__ (Object: manage_tabs) File C:\Program Files\WebSite\lib\python\DocumentTemplate\DT_In.py, line 675, in renderwob (Object: manage_options) File C:\Program Files\WebSite\lib\python\DocumentTemplate\DT_Util.py, line 266, in eval (Object: _vars['PATH_INFO'][-(_.len(action)):]==action) File <string>, line 0, in ? File C:\Program Files\WebSite\lib\python\DocumentTemplate\DT_Util.py, line 150, in careful_getitem KeyError: (see above) What I doing wrong?

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Creating a class in an external method
by Ben Derstine 07 May '99

07 May '99

Hello, I'm trying to get an external method to create an object. When I try the external method defined below Zope says an error has occurred. If I take out the line thisapp=licapp.licapp() then it prints 'hi' in a browser. I know my code is okay because this is something I've built external to Zope and I'm now trying to get it working with Zope. Is there anyway to get informative error messages? All afternoon I've been struggling with 'an error has occurred' or ' a serious application error has occurred' and not having a clue what is wrong. Is there an easier way to develop with Zope where you actually get useful feedback on what is going wrong? import Shared.bend.licapp def makedepts(): "Create and display deptmartment list" thisapp=licapp.licapp() return 'hi' Benjamin L Derstine Network Administrator Real Education, Inc. 10200 A East Girard Avenue Denver, CO 80231 e-mail: bend(a)realeducation.com phone: 303-873-7400 fax: 303-873-7449 http://www.realeducation.com "The Leader in Online Education over the Internet"

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RE: [Zope] Creating a class in an external method
by Shaw, Howard 07 May '99

07 May '99

It looks to me like the python is the problem. Unless I am mistaken, you either need to say > thisapp=licapp.licapp() or from Shared.bend import licapp . Good luck... and search the list archives for discussion of using the python debugger in combo with Zope development. Howard Clinton Shaw III St. Thomas High School > ---------- > From: Ben Derstine[SMTP:bend@realeducation.com] > Sent: Thursday, May 06, 1999 7:16 PM > To: 'zope(a)zope.org' > Subject: [Zope] Creating a class in an external method > > Hello, > > I'm trying to get an external method to create an object. When I try > the > external method defined below Zope says an error has occurred. If I > take out > the line thisapp=licapp.licapp() then it prints 'hi' in a browser. I > know > my code is okay because this is something I've built external to Zope > and > I'm now trying to get it working with Zope. Is there anyway to get > informative error messages? All afternoon I've been struggling with > 'an > error has occurred' or ' a serious application error has occurred' and > not > having a clue what is wrong. Is there an easier way to develop with > Zope > where you actually get useful feedback on what is going wrong? > > import Shared.bend.licapp > > > > > def makedepts(): > "Create and display deptmartment list" > > thisapp=licapp.licapp() > > return 'hi' > > > Benjamin L Derstine > Network Administrator > Real Education, Inc. > 10200 A East Girard Avenue > Denver, CO 80231 > > e-mail: bend(a)realeducation.com > phone: 303-873-7400 > fax: 303-873-7449 > > http://www.realeducation.com > > "The Leader in Online Education over the Internet" > > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://www.zope.org/mailman/listinfo/zope > > (For developer-specific issues, use the companion list, > zope-dev(a)zope.org - http://www.zope.org/mailman/listinfo/zope-dev ) >

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RE: [Zope] How to know which user is seeing a page?
by Michel Pelletier 07 May '99

07 May '99

> -----Original Message----- > From: Dmitry B. Khlonin [mailto:khl@paloma.spbu.ru] > Sent: Thursday, May 06, 1999 1:14 PM > To: zope(a)zope.org > Subject: Re: [Zope] How to know which user is seeing a page? > > > > I've developed an external method in the private part of my zope > >site to do a job, but I need a log of who called it. > > My Q: is any way that I could know the name(login) of > the user that > >is accessing to a zope object? > > > I agree with this question. > And have else one question - How I could know the password of user > that accessing "index_html"? > The password is not accessable from DTML, you must use an external method and pass in the User object AUTHENTICATED_USER. The password then would be gotten with AUTHENTICATED_USER._getPassword() -Michel > > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://www.zope.org/mailman/listinfo/zope > > (For developer-specific issues, use the companion list, > zope-dev(a)zope.org - http://www.zope.org/mailman/listinfo/zope-dev ) >

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RE: [Zope] Could we migrate Zope email to a news group?
by Michel Pelletier 07 May '99

07 May '99

> -----Original Message----- > From: Martin Dougiamas [mailto:martin@dougiamas.com] > Sent: Thursday, May 06, 1999 11:23 PM > To: zope(a)zope.org > Subject: Re: [Zope] Could we migrate Zope email to a news group? > > > Philip Aylesworth wrote: > > > > How about just a good web archive/search for the mailing list? > > I totally agree with this. As do I, I believe it's the best interface. The only newsgroup I read is comp.lang.forth. > > I would much prefer a good web archive with good searching > facilities than a newsgroup. Why should I have to do all the > searching on a limited client when a server could be so much > more powerful? And in the end I think more we'll get more > hits from general web search engines than from Dejanews. > > Why not build a Zope-specialised *portal* type thing that > provides a single search/browse interface to ALL zope info > out there on the Net. It could start with this list, and > other things like the docs, FAQ etc could get added later. > > Something like the excellent http://searchlinux.com/ > and indeed: http://www.python.org/search/ > > To extend this point a little, I would LOVE to see this concept > abstracted into a generic Product for Zope. I'd like to > help with it myself but I'm way too busy with all the other cool > things I can develop with Zope! :-) > It is being abstracted into a Zope Product. Catalog will provide the ability to catalog Zope objects and search various indexes in the Catalog. It's quite fast, and very slick. It will be seen soon, we are polishing it up for Linux Expo. -Michel > Cheers, > Martin > -- > ### Martin Dougiamas -- Internet Agent "...The Eighties, > ### Centre for Educational Advancement the Nineties, > ### http://cea.curtin.edu/staff/martin the Naughties." > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://www.zope.org/mailman/listinfo/zope > > (For developer-specific issues, use the companion list, > zope-dev(a)zope.org - http://www.zope.org/mailman/listinfo/zope-dev ) >

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RE: [Zope] Creating a class in an external method
by Michel Pelletier 07 May '99

07 May '99

> -----Original Message----- > From: Ben Derstine [mailto:bend@realeducation.com] > Sent: Thursday, May 06, 1999 8:17 PM > To: 'zope(a)zope.org' > Subject: [Zope] Creating a class in an external method > > > Hello, > > I'm trying to get an external method to create an object. > When I try the > external method defined below Zope says an error has > occurred. If I take out > the line thisapp=licapp.licapp() then it prints 'hi' in a > browser. I know > my code is okay because this is something I've built external > to Zope and > I'm now trying to get it working with Zope. Is there anyway to get > informative error messages? All afternoon I've been > struggling with 'an > error has occurred' or ' a serious application error has > occurred' and not > having a clue what is wrong. Is there an easier way to > develop with Zope > where you actually get useful feedback on what is going wrong? The traceback of the exception raised is in an HTML comment of the error page. This traceback is in a comment so as not to be show to normal users when errors are raised. Setting the environment variable BOBO_DEBUG_MODE to 'yes' will not wrap the traceback in comments. The traceback will make it easier for you to see what's going on. -Michel > > import Shared.bend.licapp > > > > > def makedepts(): > "Create and display deptmartment list" > > thisapp=licapp.licapp() > > return 'hi' > > > Benjamin L Derstine > Network Administrator > Real Education, Inc. > 10200 A East Girard Avenue > Denver, CO 80231 > > e-mail: bend(a)realeducation.com > phone: 303-873-7400 > fax: 303-873-7449 > http://www.realeducation.com "The Leader in Online Education over the Internet" _______________________________________________ Zope maillist - Zope(a)zope.org http://www.zope.org/mailman/listinfo/zope (For developer-specific issues, use the companion list, zope-dev(a)zope.org - http://www.zope.org/mailman/listinfo/zope-dev )

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RE: [Zope] problems implementing my own tag
by Michel Pelletier 07 May '99

07 May '99

> -----Original Message----- > From: Pawel Logatschev [mailto:pawel@beehive.de] > Sent: Friday, May 07, 1999 3:37 AM > To: zope(a)zope.org > Subject: [Zope] problems implementing my own tag > > > hello, > > i have some problems implementing my own tag: > zope accepts it but when i write the following > in a dtml file: >  > hello  >  > > instead of "hello index_html" i get an array > with three elements: "hello ", ('title_or_id'), '\12'. > is there a function which parses something like this or > is there something i forgot. I'm guessing you didn't call render_blocks() in your render method. If you want to continue this thread, I'd recomment moving it over to zope-dev. -Michel > > regards, pawel > > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://www.zope.org/mailman/listinfo/zope > > (For developer-specific issues, use the companion list, > zope-dev(a)zope.org - http://www.zope.org/mailman/listinfo/zope-dev ) >

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