- Zope - Zope lists

- Looping over the characters in a string in DTML...
by Andy Smith 13 Jan '99

13 Jan '99

... title says it all. Is there a nice way to do it? The #in tag has just told me he doesn't like strings :( Cheers, Andy.

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- Zope on ISP account (newbie)
by Robert Allyn 13 Jan '99

13 Jan '99

Greetings, I am new to Zope and Python. I want to run Zope on my ISP account (WolfeNet.com) which uses Apache 1.0.3 on DEC OSF1 dune V3.0 358.78 alpha operating system. I have Python and Zope running but the ISP balks at passing authentication info to Zope, saying it is a security breach for them. Any ideas? I am running it on my NT Server box at home and love it, but want it on my live site. Thanks, Robert Allyn

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RE: [Zope] - Zope + Python CE
by Paul Everitt 13 Jan '99

13 Jan '99

Jeff wrote: > - What's the point? There doesn't have to be a point, it's just coooool. :^) One other interesting area for Zope...*if* we ever get of our butts and finish the import/export stuff, and if we actually went so far as to have some notion of *replicated* folders, then you could effectively check out your information onto your CE doo-dad, work offline using the local Zope, then update when back online. Of course, until we make some progress on our previous promises, you should take all this with a grain of salt. BTW, the active projects here right now are: o Finishing updates of the Frame documents (that is, Zope Manager's Guide, DTML manual, and reworked-Aqueduct Manager's Guide) o Zope-Medusa (which includes the FTP work) o WebDAV o DCOracle release We are swamped with a move to bigger offices starting next week and more hiring, but we are making good progress. --Paul

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- How to register an object?
by Stefan Wille 13 Jan '99

13 Jan '99

Hello, there are documents at zope.org that say I can publish an object, say 'billy', and invoke its methods with a url http://my.site/billy/my_method How can I register an object in Zope? I would expect object registration to work like external method registration, and indeed, there is an extension in the contributed code section which introduces 'External Objects' in Zope, but it doesn't work for me. Isn't there a standard way in Zope to do this? Thank you Stefan

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- Zope + Python CE
by Jeff Bauer 13 Jan '99

13 Jan '99

I've been debating whether to mention this, because I don't want to encourage premature expectations, but I've got a modest Zope hello world example working with Python CE. - What's the point? Two purposes are served by allowing Zope to run on a CE device. First, apparently there *is* a market for embedded web server devices. It sort of makes sense. Why shouldn't you someday point your browser at your telephone/answering machine, network laser printer, VCR, etc. ? For evidence of the potential market, check out: http://www.intrinsyc.com/products/rainbow/index.html Second, and of more immediate concern to me, is that Python CE programmers desperately need a way to write simple user applications. Running a Zope application via Pocket Internet Explorer may be a reasonable short-term solution. Even for P/PC users (where Pocket IE is unavailable) it should be possible to use something like ProxiWeb to access Zope. - What's the problem? Everything appears to work okay with the a network card plugged in and the CE device connected to the network. ZopeHTTPServer serves its data to its local IP address. When the network card is removed, however, the socket stuff does not want to run on 127.0.0.1. I've yet to discover if this is a CE problem or just the Python CE implementation of the socket module. Do other Win32 programs have this problem? I'll be busy with other work for a while, but if anyone wants further information please send me email. If no other purpose is served, perhaps this post can help disprove the notion that Zope is necessarily a heavyweight application. Regards, Jeff Bauer Rubicon, Inc.

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Re: [Zope] - Hints and strategical info for database migration ne eded (longish))
by Stefan Franke 13 Jan '99

13 Jan '99

Jim, Amos, thank you very much for your immediate answers. Things have become less foggy already. One thing that took me quite long to figure out, even though it's explicitely mentioned in the docs is that the Publisher explicitely extracts the argument names from the code objects of python functions. Isn't it a little dangerous to rely that much on python's internals. (Of course I see that solutions which stay inside the language's boundaries are much clumsier, e.g. would force all published functions to be f(**args). I don't want to start an extensive thread with this question, maybe it has been discussed in the bobo list already.. regards, stefan

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- ANN: AutoMessageDialog patch
by John Mitchell 13 Jan '99

13 Jan '99

When editing files via the web in Zope, pressing the Change button gives you a dialog saying "Your changes have been saved", after which you get to click Okay to continue working. If you work by editing/saving/reloading the same page iteratively, this can get tedious. This patch creates a AutoMessageDialog object. It functions just like the tradional MessageDialog, but it *times out* after a couple seconds, sending the user to the next page. The AutoMessageDialog is installed in the edit-document page, but no others, and the timeout is defaulted to 2 seconds. Lemme know if this is useful. http://people.magnet.com/~johnm/Zope/autodialog.patch - j

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- Bobo and Stdout
by Dr. Armin Tschammer 13 Jan '99

13 Jan '99

I publish the following Modul with Bobo: Very simple: hello.py: import sys, os, time import DocumentTemplate lib=sys.path[0] sys.path.append(os.path.join(lib,'DT')) def hello(): "Display a greeting" # print "rrr" X3 = DocumentTemplate.HTMLFile(lib+'/hello.dtml') return X3() ---------------------------- Everthing works fine, when I call that method via the URL: http://myserver/cgi-bin/hello/hello --------------------------- Now, when I make the commentated line print "rrr" active, I get Internal Server Error The server encountered an internal error or misconfiguration and was unable to complete your request. ... This seems a little bit strange to me, because a mechanism, which works with the return values of functions should not be confused from the stdout or am I wrong (I know the cgi mechanism) ? On the other side the following doesn't work, too: ... print X3() # return X3() That means to me: stdout alone makes no sense, too. All together that would mean, I have to sustain the return value of the function which I want to publish, but I must not pollute the stdout. Now the real problem is: When I am calling same functions in that python-modul for calculations and I want to show the results in the browser, I have to take care that within the calculations nothing is written to the stdout. Is that the way I have to go ? Armin

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- A naive question about browser based applications
by LD Landis 13 Jan '99

13 Jan '99

Hi, I have one little "niggle" regarding browser based application deployment that has been simmering on the back burner for quite a while now. Now that I'm getting ready to get really serious about Zope, et al... I'm now wanting to get this answered. Scenario: Heads down data entry/long session of interactions... Questions: - As I go from screen to screen to screen (ala panel model of non-active, e.g. Java, interaction)... each panel "stacks" on top of the previous, right? - If so, is there any way to force the browser to "flush" the stack, with the side effect, for example, of making the "Back" button on Netscape not return to the screen from whence I just came? For example, if I go "in" 10 levels, I can then go "Back" the 10 levels. If at the 10th level, I did a "commit", and then if I back out some number of levels, and then took a different path, or did something that thought it could do a "transaction abort" or "rollback" (etc), how do I maintain transaction integrity? - If there is no way to "flush" the stack, how do I keep the browser's URL stack from eventually overflowing? Let's say that I expect several hundred, or thousand, or millions, or trillions (USA or other) of transactions in a session... (no matter what limit you set, I'll claim that I need several times that number of interactions... which is easily accomplished in a typical application that doesn't nest...) What I think I want (in effect) is an interaction model, using Zope, that is: while not done: dowork() rather than the stacking of: dowork() dowork() dowork() ... dowork() ... from which I can then "Back", "Back", "Back", "Back", "Back"... all the way out... -- Cheers, --ldl ----------------------------------------------------------------------------- LD Landis ldl(a)HealthPartners.Com N0YRQ Voice 612/883-5511 Fax 612/883-6363 HealthPartners, 8100 34th Avenue So, PO Box 1309, Minneapolis, MN 55440-1309 Shape your life not from your memories, but from your hopes. (Borrowed) -----------------------------------------------------------------------------

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- gadfly/zope site example
by chalaouxf＠synbio.tpgnet.net 13 Jan '99

13 Jan '99

Hi All, Trying the example from "http://www.zope.org/Documentation/HowTo/SampleGadfly" I obtained the following error : =============================================== <!doctype html public "-//w3c//dtd html 4.0 transitional//en"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <meta name="GENERATOR" content="Mozilla/4.5 [fr] (WinNT; I) [Netscape]"> <title>seminairecreate_table</title> </head> <body bgcolor="#FFFFFF" link="#000099" vlink="#555555"> <table BORDER=0 CELLSPACING=0 CELLPADDING=2 WIDTH="100%" > <tr> <td ALIGN=LEFT VALIGN=TOP><b>Z SQL Method at /seminaire </b></td> </tr> </table> <hr><b>Error, <i>exceptions.IOError</i>:</b> (13, 'Permission denied')  <hr><b>SQL used:</b> <pre>create table zopista (col_a integer, col_b integer)</pre> <hr> </body>  </html> =============================================== Bye, FR. François-Régis Chalaoux Bioinformatics Group Synthélabo Biomoléculaire 67080 Strasbourg Cedex FRANCE Tél : 03 88 60 87 14 Fax : 03 88 45 90 70

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