March 2001 - Zope - Zope lists

problem with Zope and IE and ReportLab
by Jerome Alet 14 Mar '01

14 Mar '01

Hi, not sure if the problem comes from ReportLab, in fact I'm almost sure it doesn't. However I post it to both RL and Zope lists to be sure to have an answer. here's the problem: With the help I've received yesterday from the RL list, I've managed to create an external method which generates a PDF document with RL. This external method, rpdf, is called from a DTML method which does (exactly) the following: --- CUT --- <dtml-call "RESPONSE.setHeader('Content-Type', 'application/pdf')"> <dtml-call "RESPONSE.setHeader('Content-Disposition', 'attachment; filename=rapport.pdf')"> <dtml-var rpdf> --- CUT --- When viewed in Netscape 4.76 under Linux, all works fine, and a dialog box opens, asking me to save the PDF file as "rapport.pdf", or if I've got acroread installed as a plugin on the machine, automatically launches it and all is fine and works flawlessly. When viewed under Internet Explorer 5.0 under Windows NT 4 (sp5), the dialog box opens but IE tells me it can't download the file. Unfortunately I don't have Netscape under Windows installed to make more tests. Does someone see where the problem comes from ? Thanks in advance. Jerome Alet - alet(a)unice.fr - http://cortex.unice.fr/~jerome Fac de Medecine de Nice http://wwwmed.unice.fr Tel: (+33) 4 93 37 76 30 Fax: (+33) 4 93 53 15 15 28 Avenue de Valombrose - 06107 NICE Cedex 2 - FRANCE

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problem with Zope and IE and ReportLab
by Jerome Alet 14 Mar '01

14 Mar '01

Hi, not sure if the problem comes from ReportLab, in fact I'm almost sure it doesn't. However I post it to both RL and Zope lists to be sure to have an answer. here's the problem: With the help I've received yesterday from the RL list, I've managed to create an external method which generates a PDF document with RL. This external method, rpdf, is called from a DTML method which does (exactly) the following: --- CUT --- <dtml-call "RESPONSE.setHeader('Content-Type', 'application/pdf')"> <dtml-call "RESPONSE.setHeader('Content-Disposition', 'attachment; filename=rapport.pdf')"> <dtml-var rpdf> --- CUT --- When viewed in Netscape 4.76 under Linux, all works fine, and a dialog box opens, asking me to save the PDF file as "rapport.pdf", or if I've got acroread installed as a plugin on the machine, automatically launches it and all is fine and works flawlessly. When viewed under Internet Explorer 5.0 under Windows NT 4 (sp5), the dialog box opens but IE tells me it can't download the file. Unfortunately I don't have Netscape under Windows installed to make more tests. Does someone see where the problem comes from ? Thanks in advance. Jerome Alet - alet(a)unice.fr - http://cortex.unice.fr/~jerome Fac de Medecine de Nice http://wwwmed.unice.fr Tel: (+33) 4 93 37 76 30 Fax: (+33) 4 93 53 15 15 28 Avenue de Valombrose - 06107 NICE Cedex 2 - FRANCE

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Scripting Netscape Composer?
by Paul Browning 14 Mar '01

14 Mar '01

(Not strictly a Zope question but you're all such clever people and I'd like to try and integrate things with a Zope back-end.) Question: I'd like to be able to cause Netscape Composer to open from Netscape (the browser) if a link (called, say, "Edit This Page") was selected. Any thoughts on how this might be done? Javascript? And, yes, I know Amaya nicely toggles between browse/edit modes. And I know about the neat http://standardbrains.editthispage.com/ trick for IE. But I need to find a Netscape Composer solution as, at present, it's already sitting on most people's desktops locally. (Yeah - I know I ought to be able to expect users to go File -> Edit Page from Netscape the browser but I'm trying to make the create/edit page, publish page, create/edit page cycle as seamless as possible.) TIA Paul -- The Library, Tyndall Avenue, Univ. of Bristol, Bristol, BS8 1TJ, UK E-mail: paul.browning(a)bristol.ac.uk URL: http://www.bris.ac.uk/

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Error Handling
by Alex Verstraeten 14 Mar '01

14 Mar '01

Hey guys, let's say I've got a dtml method which calls 4 other methods: 2 of these method inserts data into MySQL the other 2 methods creates images using manage_addImage() to have a nice consistency I need these 4 actions to perform sucessfully or cancel the whole operation. is there a better solution than doing this: <dtml-try> <dtml-call method1> <dtml-except> some html response <dtml-else> <dtml-try> <dtml-call method2> <dtml-except> <dtml-call undo_method1> <dtml-else> <dtml-try> <dtml-call method3> <dtml-except> <dtml-call undo_method2> <dtml-call undo_method1> <dtml-else> <dtml-try> <dtml-call method4> <dtml-except> <dtml-call undo_method3> <dtml-call undo_method2> <dtml-call undo_method1> </dtml-try> </dtml-try> </dtml-try> </dtml-try> Thanks in advance!

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Python Script limit in range()
by Peter Bengtsson 14 Mar '01

14 Mar '01

A simple Script (Python) of mine: Id: randomtext_pys Title: Returns a random text <params>length=500</params> [code] import string import random text='' pool = "qwertyuioplkjhgfdsazxcvbnm 1234567890 \n" for i in range(int(length)): text='%s%s'%(text,pool[random.randint(0,(len(pool)-1))]) return text [/code] When I test this script within the management interface of Python Scripts everything looks good and I can enter values of "length" like 100 to 10 000. However, when I call this script from a DTML Method like this: <dtml-var "randomtext_pys(1000)"> it throws an error at me. <dtml-var "randomgtext_pys(500)"> and <dtml-var "randomgtext_pys(999)"> works fine. Error Type: ValueError Error Value: range() too large (traceback below) So according to the traceback the error you find this: ----------- lib/python/DocumentTemplate/DT_Util.py ------------ def careful_range(md, iFirst, *args): # limited range function from Martijn Pieters RANGELIMIT = 1000 if not len(args): iStart, iEnd, iStep = 0, iFirst, 1 elif len(args) == 1: iStart, iEnd, iStep = iFirst, args[0], 1 elif len(args) == 2: iStart, iEnd, iStep = iFirst, args[0], args[1] else: raise AttributeError, 'range() requires 1-3 int arguments' if iStep == 0: raise ValueError, 'zero step for range()' iLen = int((iEnd - iStart) / iStep) if iLen < 0: iLen = 0 if iLen >= RANGELIMIT: raise ValueError, 'range() too large' return range(iStart, iEnd, iStep) ------------------------------------------------------------------- WHY is that LIMIT there? I can mod my Python Script to accomodate for the value of 1000, but I am just curious of it. Best Regards, Peter Traceback (innermost last): File /dsk/1/Zope-src/Zope-2.3.0-src/lib/python/ZPublisher/Publish.py, line 222, in publish_module File /dsk/1/Zope-src/Zope-2.3.0-src/lib/python/ZPublisher/Publish.py, line 187, in publish File /dsk/1/Zope-src/Zope-2.3.0-src/lib/python/Zope/__init__.py, line 221, in zpublisher_exception_hook (Object: Traversable) File /dsk/1/Zope-src/Zope-2.3.0-src/lib/python/ZPublisher/Publish.py, line 171, in publish File /dsk/1/Zope-src/Zope-2.3.0-src/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: showlong) File /dsk/1/Zope-src/Zope-2.3.0-src/lib/python/ZPublisher/Publish.py, line 112, in call_object (Object: showlong) File /dsk/1/Zope-src/Zope-2.3.0-src/lib/python/OFS/DTMLMethod.py, line 189, in __call__ (Object: showlong) File /dsk/1/Zope-src/Zope-2.3.0-src/lib/python/DocumentTemplate/DT_String.py, line 538, in __call__ (Object: showlong) File /dsk/1/Zope-src/Zope-2.3.0-src/lib/python/DocumentTemplate/DT_Util.py, line 334, in eval (Object: randomtext_pys(l)) (Info: l) File <string>, line 0, in ? File /dsk/1/Zope-src/Zope-2.3.0-src/lib/python/Shared/DC/Scripts/Bindings.py, line 324, in __call__ (Object: randomtext_pys) File /dsk/1/Zope-src/Zope-2.3.0-src/lib/python/Shared/DC/Scripts/Bindings.py, line 353, in _bindAndExec (Object: randomtext_pys) File /dsk/1/Zope-src/Zope-2.3.0-src/lib/python/Products/PythonScripts/PythonScrip t.py, line 330, in _exec (Object: randomtext_pys) (Info: ({'script': <PythonScript instance at 894fa08>, 'context': <Folder instance at 87e20c8>, 'container': <Folder instance at 87e20c8>, 'traverse_subpath': []}, ('1001',), {}, (500,))) File Script (Python), line 8, in randomtext File /dsk/1/Zope-src/Zope-2.3.0-src/lib/python/DocumentTemplate/DT_Util.py, line 201, in careful_range ValueError: (see above)

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Zope article
by Bill Blevins 14 Mar '01

14 Mar '01

Here you go...article on Zope from SeyboldReports.com http://fredericksburg.com/PersonalFolders/zope.pdf Bill Blevins, Internet Manager The Free Lance-Star www.fredericksburg.com

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XML Parsed for all platforms?
by Zanotti Michele 14 Mar '01

14 Mar '01

Ciao, I see that XMLParsed 0.1 b3 is only for generic Unix-like platform, while 0.1 b1 and b2 are for all platforms. Do you know if XMLParsed developers want to abandon Win platform? Thanks, Michele -----Messaggio originale----- Da: Martijn Pieters [mailto:mj@digicool.com] Inviato: mercoledì 14 marzo 2001 10.50 A: Jeff Griffith Cc: zope(a)zope.org Oggetto: Re: [Zope] Natural XML Parsing On Tue, Mar 13, 2001 at 06:46:42PM -0500, Jeff Griffith wrote: > Hey All, > > While messing around with XML I became really frustrated at how unnatural it > seemed to extract data out of documents. I ended up writing my own python > class to do exactly what felt natural. The problem is the entire time I > kept telling myself "this code has to already exist somewhere" I just could > never find it. > > So if anyone is interested take a look at how this class works and tell me > if > 1) this seems useful > 2) this is already supported by someone else > > A brief example of how it is used > -------------- > > < collection > > < comic issue="1"> > < author > Stan Lee < /author > > < /comic > > < /collection > > > can be accessed as > > collection.comic.author.TEXT > collection.comic.ATTR('issue') > --------------- > a more complete write-up w/source is available at > http://www.people.hbs.edu/jgriffith/simplexmlobject.html Have you looked at ParsedXML? http://www.zope.org/Wikis/DevSite/Projects/ParsedXML/Releases It is a fully DOM level 2 compliant XML object. It'll let you access your XML via DOM calls. They may seem less convenient than your example, but will cover the cases where you have more than one 'comic' element. Your example could translate to: xmlDoc.documentElement.childNodes[0].childNodes[0].childNodes[0] xmlDoc.documentElement.childNodes[0].getAttribute('issue') or by using the tagname the first example would become: comic = xmlDoc.documentElement.getElementsByTagName('comic')[0] authorName = comic.getElementsByTagName('author')[0].getChildNodes(0) In future versions, XML id support is planned; if you have a DTD that tells the parser what attributes are Id's, you can traverse the tree using Id attributes for the same effect. Then you can use a document like: <collection> <comic issue="1" id="first_issue"> <author>Stan Lee</author> </comic> </collection> and code like: comic = xmlDoc.getElementById('first_issue') authorName = comic.getElementsByTagName('author')[0].getChildNodes(0) Hope this helps! -- Martijn Pieters | Software Engineer mailto:mj@digicool.com | Digital Creations http://www.digicool.com/ | Creators of Zope http://www.zope.org/ --------------------------------------------- _______________________________________________ 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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MAILHOST ERROR
by Jose Soares 14 Mar '01

14 Mar '01

Hello all, I have a problem using MailHost, using the following document: <dtml-var standard_html_header> <dtml-sendmail mailhost="MyMail"> To: joseph(a)sfera.com From: marcos(a)sfera.com Subject: Feedback from the web messaggio..... </dtml-sendmail> <dtml-var standard_html_footer> Zope returns me the following error message: Traceback (innermost last): File /usr/lib/zope/lib/python/ZPublisher/Publish.py, line 171, in publish File /usr/lib/zope/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: tmp) File /usr/lib/zope/lib/python/ZPublisher/Publish.py, line 112, in call_object (Object: tmp) File /usr/lib/zope/lib/python/OFS/DTMLDocument.py, line 177, in __call__ (Object: tmp) File /usr/lib/zope/lib/python/DocumentTemplate/DT_String.py, line 549, in __call__ (Object: tmp) File /usr/lib/zope/lib/python/Products/MailHost/SendMailTag.py, line 188, in render (Object: MailSfera) File /usr/lib/zope/lib/python/Products/MailHost/MailHost.py, line 220, in send (Object: MailSfera) File /usr/lib/python1.5/smtplib.py, line 465, in sendmail File /usr/lib/python1.5/smtplib.py, line 349, in mail File /usr/lib/python1.5/smtplib.py, line 118, in quoteaddr File /usr/lib/python1.5/rfc822.py, line 451, in parseaddr File /usr/lib/python1.5/rfc822.py, line 496, in getaddrlist File /usr/lib/python1.5/rfc822.py, line 504, in getaddress File /usr/lib/python1.5/rfc822.py, line 484, in gotonext TypeError: len() of unsized object Any ideas? Thank you Jose'

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Natural XML Parsing
by Jeff Griffith 14 Mar '01

14 Mar '01

Hey All, While messing around with XML I became really frustrated at how unnatural it seemed to extract data out of documents. I ended up writing my own python class to do exactly what felt natural. The problem is the entire time I kept telling myself "this code has to already exist somewhere" I just could never find it. So if anyone is interested take a look at how this class works and tell me if 1) this seems useful 2) this is already supported by someone else A brief example of how it is used -------------- < collection > < comic issue="1"> < author > Stan Lee < /author > < /comic > < /collection > can be accessed as collection.comic.author.TEXT collection.comic.ATTR('issue') --------------- a more complete write-up w/source is available at http://www.people.hbs.edu/jgriffith/simplexmlobject.html Thanks! -Jeff Griffith

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(no subject)
by Dennis Pabalan 14 Mar '01

14 Mar '01

Hi all!!! What package do i need to install? Ive installed an rpm of zope and zope-server. What are the use of these packages? How about the other packages? thanks Demic -- .--. Demic Pabalan mobile://+63.917.345.1692 ( () ) Q Linux Solutions, Inc. office://+63.2.894.3592/ `--\\ A Philippine Open Source Solutions Co. http://www.q-linux.com/

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