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ZPT and standard_error_message solution
by Andy Dustman 25 Aug '02

25 Aug '02

I ran into some problems using a ZPT for the standard_error_message, and noticed from the archives that others had as well. It took me awhile but I eventually found a cause and solution. The problem occurs if your ZPT standard_error_message uses a template macro, i.e.: <html metal:use-macro="here/main_template/macros/master"> If the error is NotFound (404), then here apparently is nowhere, i.e. not defined, and there the only way to directly acquire the template is by using root, i.e. <html metal:use-macro="root/main_template/macros/master"> (or something similar, depending on your template location) Even then, here is (apparently) not defined within the template, so this doesn't get you much if your template uses here, and it probably does. Solution: Make standard_error_message a DTML method. It can be as simple as: <dtml-return expr="other_error_message(error_type=error_type, error_message=error_message, error_value=error_value, error_tb=error_tb)"> where other_error_message is a ZPT which uses a template. here is defined (on a 404, here is the location of other_error_page). In my case, I ended up using this instead: <dtml-if "error_type=='NotFound'"> <dtml-return missing_error_message> <dtml-else> <dtml-return expr="other_error_message(error_type=error_type, error_message=error_message, error_value=error_value, error_tb=error_tb)"> </dtml-if> The reason for this, I had trouble in the ZPT testing the error_type to see if it was NotFound, and it was easier to test for this in the DTML Method to use a different error page. You could do this with a Python script as well, but you wouldn't gain much if anything. -- Andy Dustman PGP: 0x930B8AB6 @ .net http://dustman.net/andy "Cogito, ergo sum." -- Rene Descartes "I yam what I yam and that's all what I yam." -- Popeye

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Re: [Zope-dev] limit to number of operations in a transaction?
by Dieter Maurer 25 Aug '02

25 Aug '02

Response redirected to <mailto:zope@zope.org> which is more appropriate. Christopher N. Deckard writes: > ... > Is it known that large numbers of operations, such as above, in a > single transaction can cause problems? A transaction, of course, > being a request, and an operation being something like > manage_addProduct. It is known. Search the list archive for "get_transaction().commit()". Dieter

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Recovering corrupt XML Export files?
by Terry Hancock 25 Aug '02

25 Aug '02

Hi, I recently had some problems with my site involving CookieUserFolder, so I was trying to back it out. However, even after removing all CUF folders and the product, I still had cookie authentication coming up (apparently following the information in regular UserFolders (?)). Anyway, thinking that something invisible was going on in the site, I tried exporting and importing a large part of the site. The export seemed to work, but the import failed, initially with a complaint about an __init__() not receiving enough parameters. This was apparently from a DTMLFile class instance. Unfortunately, I hadn't backed up the Data.fs right before doing this (I was unfortunately relying on the export to work -- I know ... I should've known better). Anyway, I was hoping to try to recover this XML export file. I made a copy and tried to chop out references to the CookieUserFolder and DTMLFile objects. I figured I'd probably lose some data, but might be able to get the bulk of it to load. I did this by cutting "item" and "record" elements containing the strings "CookieUserFolder" or "DTMLFile". I did get past the __init__ error, but now am seeing a new one: cPickle.BadPickleGet I should also mention that this XML file is just over 64 megabytes in size -- I suppose I could be running out of memory or something. I don't know enough about how it's parsed to know if that's likely (but surely Zope export files are expected to be large?). I'm also inquiring with my hosting provider, who I think keeps fairly frequent backups -- I may be able to restore a not-too-old copy of my Data.fs file, but I'm hoping to get some recent data out, if at all possible. I don't really understand the structure in the XML export file. It looks really fine-grained, and I'm not sure I can easily extract data based on the original folder structure -- is there any chance of doing that (i.e. finding the most important elements out of the file and restoring just those?). Is there a way to trace the exact point in the export file where Zope failed (as it is, I get a traceback that refers to the importing code, but doesn't tell me what it was chewing on when it choked). I tried to search the Zope site for some information on this, but I'm not really sure what I should be looking for exactly. Well, anyway, any advice appreciated. I feel like an idiot, but maybe I'll learn something useful out of it. Thanks, Terry -- ------------------------------------------------------ Terry Hancock hancock(a)anansispaceworks.com Anansi Spaceworks http://www.anansispaceworks.com P.O. Box 60583 Pasadena, CA 91116-6583 ------------------------------------------------------

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Unlocking locked Folder?
by Andreas Kostyrka 25 Aug '02

25 Aug '02

Hi! I've got a small problem with one of my Zope sites: I've deleted a version, but the ZMI still shows some folders as locked by the already nonexistant version? So my question: Is there any way to unlock such a folder other then undoing the manage_deleteObject? Andreas

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FW: [Zope] dtml-if fustration!
by Greg Conway 25 Aug '02

25 Aug '02

forget that, it doesn't work when called without the variable in the request :( any other knowledgeable zope soul out there fancy taking pity on a struggling newbie? many thanks!! Regards, Greg. >> -----Original Message----- >> From: zope-admin(a)zope.org [mailto:zope-admin@zope.org]On Behalf Of Greg >> Conway >> Sent: 25 August 2002 19:20 >> To: Ausum Studio >> Cc: Zope@Zope. Org >> Subject: RE: [Zope] dtml-if fustration! >> >> >> Hi Ausum, >> >> You've helped me enough.... using the code you sent me before I >> continued to >> play, and this seems to work... >> >> (not extensively tested as yet though, but looks good!!) >> >> <dtml-if "_.getattr(REQUEST,OuterVar) is not None"> >> >> so many many thanks!! >> >> and yes, you're right, and it would probably be faster in python as well, >> but that's for another day... :) >> >> regards, >> >> Greg. >> >> >> -----Original Message----- >> >> From: Ausum Studio [mailto:ausum_studio@hotmail.com] >> >> Sent: 25 August 2002 19:13 >> >> To: Greg Conway >> >> Subject: Re: [Zope] dtml-if fustration! >> >> >> >> >> >> Hello again, Greg. I'd really like to help you, as I have >> >> struggled myself >> >> with DTML at its moment. But I need a whole case explanation. >> I'm a bit >> >> confused trying to understand what you need, from the code >> you've posted. >> >> >> >> At the end, you'll see how easy it woud've been to use a python script >> >> instead. :) >> >> >> >> >> >> Ausum >> >> >> >> >> >> p.s. Don't need to follow this thread in the list. >> >> >> >> >> >> ----- Original Message ----- >> >> From: "Greg Conway" <greg(a)gmlnt.com> >> >> To: "Ausum Studio" <ausum_studio(a)hotmail.com> >> >> Cc: "Zope@Zope. Org" <zope(a)zope.org> >> >> Sent: Sunday, August 25, 2002 12:59 PM >> >> Subject: RE: [Zope] dtml-if fustration! >> >> >> >> >> >> > Hi Ausum, >> >> > >> >> > The variable in question is as follows... >> >> > >> >> > REQUEST.CustomLinkVars contains ['SelectStudentID'] >> >> > >> >> > and all the other vars in the code snippet are initialised >> within the >> >> loop. >> >> > >> >> > Hope this sheds more light on it! >> >> > >> >> > Regards, >> >> > >> >> > Greg >> >> > >> >> > >> >> > >> -----Original Message----- >> >> > >> From: Ausum Studio [mailto:ausum_studio@hotmail.com] >> >> > >> Sent: 25 August 2002 18:49 >> >> > >> To: Greg Conway >> >> > >> Subject: Re: [Zope] dtml-if fustration! >> >> > >> >> >> > >> >> >> > >> Please send me examples of the content of the variables involved. >> >> > >> >> >> > >> >> >> > >> Ausum >> >> > >> >> >> > >> >> >> > >> ----- Original Message ----- >> >> > >> From: "Greg Conway" <greg(a)gmlnt.com> >> >> > >> To: "Ausum Studio" <ausum_studio(a)hotmail.com> >> >> > >> Sent: Sunday, August 25, 2002 12:38 PM >> >> > >> Subject: RE: [Zope] dtml-if fustration! >> >> > >> >> >> > >> >> >> > >> > Hi Ausum, >> >> > >> > >> >> > >> > Thanks, but (!!) the problem with that is that the value >> >> > >> 'SelectStudentID' >> >> > >> > is still hard-coded in! >> >> > >> > >> >> > >> > I have tried modifying it as follows... >> >> > >> > >> >> > >> > <dtml-in "REQUEST.CustomLinkVars"> >> >> > >> > <dtml-let Counter=sequence-index> >> >> > >> > <dtml-let OuterVar=sequence-item> >> >> > >> > >> >> > >> > <dtml-if "_.hasattr(REQUEST.CustomLinkVars[Counter], >> >> > >> OuterVar) and >> >> > >> > >> REQUEST.CustomLinkVars[Counter].getattr(REQUEST,OuterVar) is not >> >> None"> >> >> > >> > >> >> > >> > do something when SelectStudentID has any value >> >> > >> > >> >> > >> > </dtml-if> >> >> > >> > >> >> > >> > </dtml-let> >> >> > >> > </dtml-let> >> >> > >> > </dtml-in> >> >> > >> > >> >> > >> > ...and I also tried.... >> >> > >> > >> >> > >> > <dtml-if "_.hasattr(REQUEST.CustomLinkVars[Counter], >> >> > >> OuterVar) and >> >> > >> > REQUEST.CustomLinkVars[Counter].OuterVar is not None"> >> >> > >> > >> >> > >> > >> >> > >> > but neither work, the code in the middle doesn't get executed >> >> > >> using either >> >> > >> > of these :( >> >> > >> > >> >> > >> > any further ideas? >> >> > >> > >> >> > >> > many thanks. >> >> > >> > >> >> > >> > regards, >> >> > >> > >> >> > >> > Greg. >> >> > >> > >> >> > >> > >> -----Original Message----- >> >> > >> > >> From: zope-admin(a)zope.org >> >> [mailto:zope-admin@zope.org]On Behalf Of >> >> > >> Ausum >> >> > >> > >> Studio >> >> > >> > >> Sent: 25 August 2002 18:20 >> >> > >> > >> To: zope(a)zope.org >> >> > >> > >> Subject: Re: [Zope] dtml-if fustration! >> >> > >> > >> >> >> > >> > >> >> >> > >> > >> <dtml-if "REQUEST.StoredVar.has_key('SelectStudentID') and >> >> > >> > >> REQUEST.StoredVar.SelectStudentID is not None"> >> >> > >> > >> do something when SelectStudebtID has any value >> >> > >> > >> </dtml-if> >> >> > >> > >> >> >> > >> > >> or >> >> > >> > >> >> >> > >> > >> <dtml-if "_.hasattr(REQUEST.StoredVar, >> 'SelectStudentID') and >> >> > >> > >> REQUEST.StoredVar.SelectStudentID is not None"> >> >> > >> > >> do something when SelectStudebtID has any value >> >> > >> > >> </dtml-if> >> >> > >> > >> >> >> > >> > >> Ausum >> >> > >> > >> >> >> > >> > >> >> >> > >> > >> >> >> > >> > >> ----- Original Message ----- >> >> > >> > >> From: "Greg Conway" <greg(a)gmlnt.com> >> >> > >> > >> To: "Ausum Studio" <ausum_studio(a)hotmail.com> >> >> > >> > >> Cc: "Zope@Zope. Org" <zope(a)zope.org> >> >> > >> > >> Sent: Sunday, August 25, 2002 11:24 AM >> >> > >> > >> Subject: RE: [Zope] dtml-if fustration! >> >> > >> > >> >> >> > >> > >> >> >> > >> > >> > Hi Ausum, >> >> > >> > >> > >> >> > >> > >> > Thanks for the reply. What I actually mean is - >> the name of >> >> > >> > >> the variable I >> >> > >> > >> > want the value of is stored inside another variable, in >> >> > >> the request. >> >> > >> > >> > >> >> > >> > >> > For example... >> >> > >> > >> > >> >> > >> > >> > REQUEST.StoredVar[1] contains SelectStudentID >> >> > >> > >> > >> >> > >> > >> > and I want to perform a dtml-if condition based on whether >> >> > >> > >> SelectStudentID >> >> > >> > >> > contains a value or not! >> >> > >> > >> > >> >> > >> > >> > So to get this value I perform a >> >> '_.getattr(REQUEST,StoredVar[1])' >> >> > >> > >> command. >> >> > >> > >> > >> >> > >> > >> > But I cannot seem to do this within a <dtml-if ... > >> >> > >> > >> statement, it throws >> >> > >> > >> up >> >> > >> > >> > an error if the variable does not exist, >> presumably because >> >> > >> > >> I'm trying to >> >> > >> > >> > work through an extra layer of variables.... >> >> > >> > >> > >> >> > >> > >> > just to make life complicated :) >> >> > >> > >> > >> >> > >> > >> > hope this is now clearer, any help much appreciated! >> >> > >> > >> > >> >> > >> > >> > Regards, >> >> > >> > >> > >> >> > >> > >> > Greg. >> >> > >> > >> > >> >> > >> > >> > >> -----Original Message----- >> >> > >> > >> > >> From: zope-admin(a)zope.org >> >> > >> [mailto:zope-admin@zope.org]On Behalf Of >> >> > >> > >> Ausum >> >> > >> > >> > >> Studio >> >> > >> > >> > >> Sent: 24 August 2002 18:39 >> >> > >> > >> > >> To: zope(a)zope.org >> >> > >> > >> > >> Subject: Re: [Zope] dtml-if fustration! >> >> > >> > >> > >> >> >> > >> > >> > >> >> >> > >> > >> > >> What is the "next pass"?. Do you mean within the >> >> same page? >> >> > >> > >> > >> If so, you don't need to declare the variable, >> as long as >> >> it's >> >> > >> > >> > >> been already >> >> > >> > >> > >> defined for the whole page. Just use <dtml-var >> SelectSID> >> >> > >> anywhere. >> >> > >> > >> > >> >> >> > >> > >> > >> Now, if you need to change its value, and then >> use it on >> >> > >> > >> the remaining >> >> > >> > >> > >> portion on the rendered page, the anwser is >> the same, use >> >> > >> <dtml-var >> >> > >> > >> > >> SelectSID>. You don't need to use the >> "REQUEST.SelectSID" >> >> part. >> >> > >> > >> > >> >> >> > >> > >> > >> >> >> > >> > >> > >> Ausum >> >> > >> > >> > >> >> >> > >> > >> > >> >> >> > >> > >> > >> ----- Original Message ----- >> >> > >> > >> > >> From: "Greg Conway" <greg(a)gmlnt.com> >> >> > >> > >> > >> To: "Zope@Zope. Org" <zope(a)zope.org> >> >> > >> > >> > >> Sent: Saturday, August 24, 2002 11:56 AM >> >> > >> > >> > >> Subject: [Zope] dtml-if fustration! >> >> > >> > >> > >> >> >> > >> > >> > >> >> >> > >> > >> > >> > Hi all, >> >> > >> > >> > >> > >> >> > >> > >> > >> > I have a fustrating problem with dtml-if's!! >> >> I've tried to >> >> > >> > >> > >> work round it >> >> > >> > >> > >> in >> >> > >> > >> > >> > many ways, but there is probably an easy one I am >> >> overlooking >> >> > >> > >> > >> knowing my >> >> > >> > >> > >> > luck... >> >> > >> > >> > >> > >> >> > >> > >> > >> > Anyway... Consider the following dtml-if statement: >> >> > >> > >> > >> > >> >> > >> > >> > >> > <dtml-if SelectSID> >> >> > >> > >> > >> > SelectSID = <dtml-var SelectSID> >> >> > >> > >> > >> > <dtml-call "REQUEST.set('SelectSID', >> SelectSID)"> >> >> > >> > >> > >> > </dtml-if> >> >> > >> > >> > >> > >> >> > >> > >> > >> > This works okay, and stores the variable >> >> SelectSID in the >> >> > >> > >> > >> request for the >> >> > >> > >> > >> > code to pick up again on it's next pass. >> >> > >> > >> > >> > >> >> > >> > >> > >> > However, on the next pass, the variable >> >> SelectSID doesn't >> >> > >> > >> exist! As >> >> > >> > >> the >> >> > >> > >> > >> > variable is now REQUEST.SelectSID - and the >> >> following code >> >> > >> doesn't >> >> > >> > >> > >> work.... >> >> > >> > >> > >> > >> >> > >> > >> > >> > <dtml-if "REQUEST.SelectSID"> >> >> > >> > >> > >> > SelectSID = <dtml-var SelectSID> >> >> > >> > >> > >> > <dtml-call "REQUEST.set('SelectSID', >> >> > >> REQUEST.SelectSID)"> >> >> > >> > >> > >> > </dtml-if> >> >> > >> > >> > >> > >> >> > >> > >> > >> > ...as an error is thrown up if REQUEST.SelectSID >> >> > >> doesn't exist! >> >> > >> > >> > >> > >> >> > >> > >> > >> > Anybody got a simple answer to my dilemma?!! >> >> > >> > >> > >> > >> >> > >> > >> > >> > Many thanks for any help! >> >> > >> > >> > >> > >> >> > >> > >> > >> > Regards, >> >> > >> > >> > >> > >> >> > >> > >> > >> > Greg Conway. >> >> > >> > >> > >> > >> >> > >> > >> > >> > This electronic transmission and any files >> >> attached to it >> >> are >> >> > >> > >> strictly >> >> > >> > >> > >> > confidential and intended solely for the addressee. >> >> > >> If you are >> >> > >> not >> >> > >> > >> > >> > the intended addressee, you must not disclose, copy >> >> > >> or take any >> >> > >> > >> action >> >> > >> > >> > >> > in reliance of this transmission. If you have >> >> received this >> >> > >> > >> > >> > transmission in error, please notify us by return >> >> > >> and delete the >> >> > >> > >> same. >> >> > >> > >> > >> > Further enquiries/returns can be posted to >> >> > >> postmaster(a)gmlnt.com >> >> > >> > >> > >> > Thank you. >> >> > >> > >> > >> > >> >> > >> > >> > >> > _______________________________________________ >> >> > >> > >> > >> > 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 ) >> >> > >> > >> > >> >> > >> > >> > This electronic transmission and any files >> attached to it are >> >> > >> strictly >> >> > >> > >> > confidential and intended solely for the addressee. >> >> If you are >> >> not >> >> > >> > >> > the intended addressee, you must not disclose, copy >> >> or take any >> >> > >> action >> >> > >> > >> > in reliance of this transmission. If you have >> received this >> >> > >> > >> > transmission in error, please notify us by return >> >> and delete the >> >> > >> same. >> >> > >> > >> > Further enquiries/returns can be posted to >> >> postmaster(a)gmlnt.com >> >> > >> > >> > Thank you. >> >> > >> > >> > >> >> > >> > >> > _______________________________________________ >> >> > >> > >> > 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 ) >> >> > >> > >> >> >> > >> > >> >> > >> > This electronic transmission and any files attached to it are >> >> strictly >> >> > >> > confidential and intended solely for the addressee. If >> you are not >> >> > >> > the intended addressee, you must not disclose, copy or take any >> >> action >> >> > >> > in reliance of this transmission. If you have received this >> >> > >> > transmission in error, please notify us by return and >> delete the >> >> same. >> >> > >> > Further enquiries/returns can be posted to postmaster(a)gmlnt.com >> >> > >> > Thank you. >> >> > >> > >> >> > >> >> >> > >> >> > This electronic transmission and any files attached to it >> are strictly >> >> > confidential and intended solely for the addressee. If you are not >> >> > the intended addressee, you must not disclose, copy or take >> any action >> >> > in reliance of this transmission. If you have received this >> >> > transmission in error, please notify us by return and >> delete the same. >> >> > Further enquiries/returns can be posted to postmaster(a)gmlnt.com >> >> > Thank you. >> >> > >> >> >> >> This electronic transmission and any files attached to it are strictly >> confidential and intended solely for the addressee. If you are not >> the intended addressee, you must not disclose, copy or take any action >> in reliance of this transmission. If you have received this >> transmission in error, please notify us by return and delete the same. >> Further enquiries/returns can be posted to postmaster(a)gmlnt.com >> Thank you. >> >> _______________________________________________ >> 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 ) >> This electronic transmission and any files attached to it are strictly confidential and intended solely for the addressee. If you are not the intended addressee, you must not disclose, copy or take any action in reliance of this transmission. If you have received this transmission in error, please notify us by return and delete the same. Further enquiries/returns can be posted to postmaster(a)gmlnt.com Thank you.

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RE: [Zope] dtml-if fustration!
by Greg Conway 25 Aug '02

25 Aug '02

Hi Ausum, You've helped me enough.... using the code you sent me before I continued to play, and this seems to work... (not extensively tested as yet though, but looks good!!) <dtml-if "_.getattr(REQUEST,OuterVar) is not None"> so many many thanks!! and yes, you're right, and it would probably be faster in python as well, but that's for another day... :) regards, Greg. >> -----Original Message----- >> From: Ausum Studio [mailto:ausum_studio@hotmail.com] >> Sent: 25 August 2002 19:13 >> To: Greg Conway >> Subject: Re: [Zope] dtml-if fustration! >> >> >> Hello again, Greg. I'd really like to help you, as I have >> struggled myself >> with DTML at its moment. But I need a whole case explanation. I'm a bit >> confused trying to understand what you need, from the code you've posted. >> >> At the end, you'll see how easy it woud've been to use a python script >> instead. :) >> >> >> Ausum >> >> >> p.s. Don't need to follow this thread in the list. >> >> >> ----- Original Message ----- >> From: "Greg Conway" <greg(a)gmlnt.com> >> To: "Ausum Studio" <ausum_studio(a)hotmail.com> >> Cc: "Zope@Zope. Org" <zope(a)zope.org> >> Sent: Sunday, August 25, 2002 12:59 PM >> Subject: RE: [Zope] dtml-if fustration! >> >> >> > Hi Ausum, >> > >> > The variable in question is as follows... >> > >> > REQUEST.CustomLinkVars contains ['SelectStudentID'] >> > >> > and all the other vars in the code snippet are initialised within the >> loop. >> > >> > Hope this sheds more light on it! >> > >> > Regards, >> > >> > Greg >> > >> > >> > >> -----Original Message----- >> > >> From: Ausum Studio [mailto:ausum_studio@hotmail.com] >> > >> Sent: 25 August 2002 18:49 >> > >> To: Greg Conway >> > >> Subject: Re: [Zope] dtml-if fustration! >> > >> >> > >> >> > >> Please send me examples of the content of the variables involved. >> > >> >> > >> >> > >> Ausum >> > >> >> > >> >> > >> ----- Original Message ----- >> > >> From: "Greg Conway" <greg(a)gmlnt.com> >> > >> To: "Ausum Studio" <ausum_studio(a)hotmail.com> >> > >> Sent: Sunday, August 25, 2002 12:38 PM >> > >> Subject: RE: [Zope] dtml-if fustration! >> > >> >> > >> >> > >> > Hi Ausum, >> > >> > >> > >> > Thanks, but (!!) the problem with that is that the value >> > >> 'SelectStudentID' >> > >> > is still hard-coded in! >> > >> > >> > >> > I have tried modifying it as follows... >> > >> > >> > >> > <dtml-in "REQUEST.CustomLinkVars"> >> > >> > <dtml-let Counter=sequence-index> >> > >> > <dtml-let OuterVar=sequence-item> >> > >> > >> > >> > <dtml-if "_.hasattr(REQUEST.CustomLinkVars[Counter], >> > >> OuterVar) and >> > >> > REQUEST.CustomLinkVars[Counter].getattr(REQUEST,OuterVar) is not >> None"> >> > >> > >> > >> > do something when SelectStudentID has any value >> > >> > >> > >> > </dtml-if> >> > >> > >> > >> > </dtml-let> >> > >> > </dtml-let> >> > >> > </dtml-in> >> > >> > >> > >> > ...and I also tried.... >> > >> > >> > >> > <dtml-if "_.hasattr(REQUEST.CustomLinkVars[Counter], >> > >> OuterVar) and >> > >> > REQUEST.CustomLinkVars[Counter].OuterVar is not None"> >> > >> > >> > >> > >> > >> > but neither work, the code in the middle doesn't get executed >> > >> using either >> > >> > of these :( >> > >> > >> > >> > any further ideas? >> > >> > >> > >> > many thanks. >> > >> > >> > >> > regards, >> > >> > >> > >> > Greg. >> > >> > >> > >> > >> -----Original Message----- >> > >> > >> From: zope-admin(a)zope.org >> [mailto:zope-admin@zope.org]On Behalf Of >> > >> Ausum >> > >> > >> Studio >> > >> > >> Sent: 25 August 2002 18:20 >> > >> > >> To: zope(a)zope.org >> > >> > >> Subject: Re: [Zope] dtml-if fustration! >> > >> > >> >> > >> > >> >> > >> > >> <dtml-if "REQUEST.StoredVar.has_key('SelectStudentID') and >> > >> > >> REQUEST.StoredVar.SelectStudentID is not None"> >> > >> > >> do something when SelectStudebtID has any value >> > >> > >> </dtml-if> >> > >> > >> >> > >> > >> or >> > >> > >> >> > >> > >> <dtml-if "_.hasattr(REQUEST.StoredVar, 'SelectStudentID') and >> > >> > >> REQUEST.StoredVar.SelectStudentID is not None"> >> > >> > >> do something when SelectStudebtID has any value >> > >> > >> </dtml-if> >> > >> > >> >> > >> > >> Ausum >> > >> > >> >> > >> > >> >> > >> > >> >> > >> > >> ----- Original Message ----- >> > >> > >> From: "Greg Conway" <greg(a)gmlnt.com> >> > >> > >> To: "Ausum Studio" <ausum_studio(a)hotmail.com> >> > >> > >> Cc: "Zope@Zope. Org" <zope(a)zope.org> >> > >> > >> Sent: Sunday, August 25, 2002 11:24 AM >> > >> > >> Subject: RE: [Zope] dtml-if fustration! >> > >> > >> >> > >> > >> >> > >> > >> > Hi Ausum, >> > >> > >> > >> > >> > >> > Thanks for the reply. What I actually mean is - the name of >> > >> > >> the variable I >> > >> > >> > want the value of is stored inside another variable, in >> > >> the request. >> > >> > >> > >> > >> > >> > For example... >> > >> > >> > >> > >> > >> > REQUEST.StoredVar[1] contains SelectStudentID >> > >> > >> > >> > >> > >> > and I want to perform a dtml-if condition based on whether >> > >> > >> SelectStudentID >> > >> > >> > contains a value or not! >> > >> > >> > >> > >> > >> > So to get this value I perform a >> '_.getattr(REQUEST,StoredVar[1])' >> > >> > >> command. >> > >> > >> > >> > >> > >> > But I cannot seem to do this within a <dtml-if ... > >> > >> > >> statement, it throws >> > >> > >> up >> > >> > >> > an error if the variable does not exist, presumably because >> > >> > >> I'm trying to >> > >> > >> > work through an extra layer of variables.... >> > >> > >> > >> > >> > >> > just to make life complicated :) >> > >> > >> > >> > >> > >> > hope this is now clearer, any help much appreciated! >> > >> > >> > >> > >> > >> > Regards, >> > >> > >> > >> > >> > >> > Greg. >> > >> > >> > >> > >> > >> > >> -----Original Message----- >> > >> > >> > >> From: zope-admin(a)zope.org >> > >> [mailto:zope-admin@zope.org]On Behalf Of >> > >> > >> Ausum >> > >> > >> > >> Studio >> > >> > >> > >> Sent: 24 August 2002 18:39 >> > >> > >> > >> To: zope(a)zope.org >> > >> > >> > >> Subject: Re: [Zope] dtml-if fustration! >> > >> > >> > >> >> > >> > >> > >> >> > >> > >> > >> What is the "next pass"?. Do you mean within the >> same page? >> > >> > >> > >> If so, you don't need to declare the variable, as long as >> it's >> > >> > >> > >> been already >> > >> > >> > >> defined for the whole page. Just use <dtml-var SelectSID> >> > >> anywhere. >> > >> > >> > >> >> > >> > >> > >> Now, if you need to change its value, and then use it on >> > >> > >> the remaining >> > >> > >> > >> portion on the rendered page, the anwser is the same, use >> > >> <dtml-var >> > >> > >> > >> SelectSID>. You don't need to use the "REQUEST.SelectSID" >> part. >> > >> > >> > >> >> > >> > >> > >> >> > >> > >> > >> Ausum >> > >> > >> > >> >> > >> > >> > >> >> > >> > >> > >> ----- Original Message ----- >> > >> > >> > >> From: "Greg Conway" <greg(a)gmlnt.com> >> > >> > >> > >> To: "Zope@Zope. Org" <zope(a)zope.org> >> > >> > >> > >> Sent: Saturday, August 24, 2002 11:56 AM >> > >> > >> > >> Subject: [Zope] dtml-if fustration! >> > >> > >> > >> >> > >> > >> > >> >> > >> > >> > >> > Hi all, >> > >> > >> > >> > >> > >> > >> > >> > I have a fustrating problem with dtml-if's!! >> I've tried to >> > >> > >> > >> work round it >> > >> > >> > >> in >> > >> > >> > >> > many ways, but there is probably an easy one I am >> overlooking >> > >> > >> > >> knowing my >> > >> > >> > >> > luck... >> > >> > >> > >> > >> > >> > >> > >> > Anyway... Consider the following dtml-if statement: >> > >> > >> > >> > >> > >> > >> > >> > <dtml-if SelectSID> >> > >> > >> > >> > SelectSID = <dtml-var SelectSID> >> > >> > >> > >> > <dtml-call "REQUEST.set('SelectSID', SelectSID)"> >> > >> > >> > >> > </dtml-if> >> > >> > >> > >> > >> > >> > >> > >> > This works okay, and stores the variable >> SelectSID in the >> > >> > >> > >> request for the >> > >> > >> > >> > code to pick up again on it's next pass. >> > >> > >> > >> > >> > >> > >> > >> > However, on the next pass, the variable >> SelectSID doesn't >> > >> > >> exist! As >> > >> > >> the >> > >> > >> > >> > variable is now REQUEST.SelectSID - and the >> following code >> > >> doesn't >> > >> > >> > >> work.... >> > >> > >> > >> > >> > >> > >> > >> > <dtml-if "REQUEST.SelectSID"> >> > >> > >> > >> > SelectSID = <dtml-var SelectSID> >> > >> > >> > >> > <dtml-call "REQUEST.set('SelectSID', >> > >> REQUEST.SelectSID)"> >> > >> > >> > >> > </dtml-if> >> > >> > >> > >> > >> > >> > >> > >> > ...as an error is thrown up if REQUEST.SelectSID >> > >> doesn't exist! >> > >> > >> > >> > >> > >> > >> > >> > Anybody got a simple answer to my dilemma?!! >> > >> > >> > >> > >> > >> > >> > >> > Many thanks for any help! >> > >> > >> > >> > >> > >> > >> > >> > Regards, >> > >> > >> > >> > >> > >> > >> > >> > Greg Conway. >> > >> > >> > >> > >> > >> > >> > >> > This electronic transmission and any files >> attached to it >> are >> > >> > >> strictly >> > >> > >> > >> > confidential and intended solely for the addressee. >> > >> If you are >> > >> not >> > >> > >> > >> > the intended addressee, you must not disclose, copy >> > >> or take any >> > >> > >> action >> > >> > >> > >> > in reliance of this transmission. If you have >> received this >> > >> > >> > >> > transmission in error, please notify us by return >> > >> and delete the >> > >> > >> same. >> > >> > >> > >> > Further enquiries/returns can be posted to >> > >> postmaster(a)gmlnt.com >> > >> > >> > >> > Thank you. >> > >> > >> > >> > >> > >> > >> > >> > _______________________________________________ >> > >> > >> > >> > 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 ) >> > >> > >> > >> > >> > >> > This electronic transmission and any files attached to it are >> > >> strictly >> > >> > >> > confidential and intended solely for the addressee. >> If you are >> not >> > >> > >> > the intended addressee, you must not disclose, copy >> or take any >> > >> action >> > >> > >> > in reliance of this transmission. If you have received this >> > >> > >> > transmission in error, please notify us by return >> and delete the >> > >> same. >> > >> > >> > Further enquiries/returns can be posted to >> postmaster(a)gmlnt.com >> > >> > >> > Thank you. >> > >> > >> > >> > >> > >> > _______________________________________________ >> > >> > >> > 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 ) >> > >> > >> >> > >> > >> > >> > This electronic transmission and any files attached to it are >> strictly >> > >> > confidential and intended solely for the addressee. If you are not >> > >> > the intended addressee, you must not disclose, copy or take any >> action >> > >> > in reliance of this transmission. If you have received this >> > >> > transmission in error, please notify us by return and delete the >> same. >> > >> > Further enquiries/returns can be posted to postmaster(a)gmlnt.com >> > >> > Thank you. >> > >> > >> > >> >> > >> > This electronic transmission and any files attached to it are strictly >> > confidential and intended solely for the addressee. If you are not >> > the intended addressee, you must not disclose, copy or take any action >> > in reliance of this transmission. If you have received this >> > transmission in error, please notify us by return and delete the same. >> > Further enquiries/returns can be posted to postmaster(a)gmlnt.com >> > Thank you. >> > >> This electronic transmission and any files attached to it are strictly confidential and intended solely for the addressee. If you are not the intended addressee, you must not disclose, copy or take any action in reliance of this transmission. If you have received this transmission in error, please notify us by return and delete the same. Further enquiries/returns can be posted to postmaster(a)gmlnt.com Thank you.

1 0

RE: [Zope] dtml-if fustration!
by Greg Conway 25 Aug '02

25 Aug '02

Hi Ausum, The variable in question is as follows... REQUEST.CustomLinkVars contains ['SelectStudentID'] and all the other vars in the code snippet are initialised within the loop. Hope this sheds more light on it! Regards, Greg >> -----Original Message----- >> From: Ausum Studio [mailto:ausum_studio@hotmail.com] >> Sent: 25 August 2002 18:49 >> To: Greg Conway >> Subject: Re: [Zope] dtml-if fustration! >> >> >> Please send me examples of the content of the variables involved. >> >> >> Ausum >> >> >> ----- Original Message ----- >> From: "Greg Conway" <greg(a)gmlnt.com> >> To: "Ausum Studio" <ausum_studio(a)hotmail.com> >> Sent: Sunday, August 25, 2002 12:38 PM >> Subject: RE: [Zope] dtml-if fustration! >> >> >> > Hi Ausum, >> > >> > Thanks, but (!!) the problem with that is that the value >> 'SelectStudentID' >> > is still hard-coded in! >> > >> > I have tried modifying it as follows... >> > >> > <dtml-in "REQUEST.CustomLinkVars"> >> > <dtml-let Counter=sequence-index> >> > <dtml-let OuterVar=sequence-item> >> > >> > <dtml-if "_.hasattr(REQUEST.CustomLinkVars[Counter], >> OuterVar) and >> > REQUEST.CustomLinkVars[Counter].getattr(REQUEST,OuterVar) is not None"> >> > >> > do something when SelectStudentID has any value >> > >> > </dtml-if> >> > >> > </dtml-let> >> > </dtml-let> >> > </dtml-in> >> > >> > ...and I also tried.... >> > >> > <dtml-if "_.hasattr(REQUEST.CustomLinkVars[Counter], >> OuterVar) and >> > REQUEST.CustomLinkVars[Counter].OuterVar is not None"> >> > >> > >> > but neither work, the code in the middle doesn't get executed >> using either >> > of these :( >> > >> > any further ideas? >> > >> > many thanks. >> > >> > regards, >> > >> > Greg. >> > >> > >> -----Original Message----- >> > >> From: zope-admin(a)zope.org [mailto:zope-admin@zope.org]On Behalf Of >> Ausum >> > >> Studio >> > >> Sent: 25 August 2002 18:20 >> > >> To: zope(a)zope.org >> > >> Subject: Re: [Zope] dtml-if fustration! >> > >> >> > >> >> > >> <dtml-if "REQUEST.StoredVar.has_key('SelectStudentID') and >> > >> REQUEST.StoredVar.SelectStudentID is not None"> >> > >> do something when SelectStudebtID has any value >> > >> </dtml-if> >> > >> >> > >> or >> > >> >> > >> <dtml-if "_.hasattr(REQUEST.StoredVar, 'SelectStudentID') and >> > >> REQUEST.StoredVar.SelectStudentID is not None"> >> > >> do something when SelectStudebtID has any value >> > >> </dtml-if> >> > >> >> > >> Ausum >> > >> >> > >> >> > >> >> > >> ----- Original Message ----- >> > >> From: "Greg Conway" <greg(a)gmlnt.com> >> > >> To: "Ausum Studio" <ausum_studio(a)hotmail.com> >> > >> Cc: "Zope@Zope. Org" <zope(a)zope.org> >> > >> Sent: Sunday, August 25, 2002 11:24 AM >> > >> Subject: RE: [Zope] dtml-if fustration! >> > >> >> > >> >> > >> > Hi Ausum, >> > >> > >> > >> > Thanks for the reply. What I actually mean is - the name of >> > >> the variable I >> > >> > want the value of is stored inside another variable, in >> the request. >> > >> > >> > >> > For example... >> > >> > >> > >> > REQUEST.StoredVar[1] contains SelectStudentID >> > >> > >> > >> > and I want to perform a dtml-if condition based on whether >> > >> SelectStudentID >> > >> > contains a value or not! >> > >> > >> > >> > So to get this value I perform a '_.getattr(REQUEST,StoredVar[1])' >> > >> command. >> > >> > >> > >> > But I cannot seem to do this within a <dtml-if ... > >> > >> statement, it throws >> > >> up >> > >> > an error if the variable does not exist, presumably because >> > >> I'm trying to >> > >> > work through an extra layer of variables.... >> > >> > >> > >> > just to make life complicated :) >> > >> > >> > >> > hope this is now clearer, any help much appreciated! >> > >> > >> > >> > Regards, >> > >> > >> > >> > Greg. >> > >> > >> > >> > >> -----Original Message----- >> > >> > >> From: zope-admin(a)zope.org >> [mailto:zope-admin@zope.org]On Behalf Of >> > >> Ausum >> > >> > >> Studio >> > >> > >> Sent: 24 August 2002 18:39 >> > >> > >> To: zope(a)zope.org >> > >> > >> Subject: Re: [Zope] dtml-if fustration! >> > >> > >> >> > >> > >> >> > >> > >> What is the "next pass"?. Do you mean within the same page? >> > >> > >> If so, you don't need to declare the variable, as long as it's >> > >> > >> been already >> > >> > >> defined for the whole page. Just use <dtml-var SelectSID> >> anywhere. >> > >> > >> >> > >> > >> Now, if you need to change its value, and then use it on >> > >> the remaining >> > >> > >> portion on the rendered page, the anwser is the same, use >> <dtml-var >> > >> > >> SelectSID>. You don't need to use the "REQUEST.SelectSID" part. >> > >> > >> >> > >> > >> >> > >> > >> Ausum >> > >> > >> >> > >> > >> >> > >> > >> ----- Original Message ----- >> > >> > >> From: "Greg Conway" <greg(a)gmlnt.com> >> > >> > >> To: "Zope@Zope. Org" <zope(a)zope.org> >> > >> > >> Sent: Saturday, August 24, 2002 11:56 AM >> > >> > >> Subject: [Zope] dtml-if fustration! >> > >> > >> >> > >> > >> >> > >> > >> > Hi all, >> > >> > >> > >> > >> > >> > I have a fustrating problem with dtml-if's!! I've tried to >> > >> > >> work round it >> > >> > >> in >> > >> > >> > many ways, but there is probably an easy one I am overlooking >> > >> > >> knowing my >> > >> > >> > luck... >> > >> > >> > >> > >> > >> > Anyway... Consider the following dtml-if statement: >> > >> > >> > >> > >> > >> > <dtml-if SelectSID> >> > >> > >> > SelectSID = <dtml-var SelectSID> >> > >> > >> > <dtml-call "REQUEST.set('SelectSID', SelectSID)"> >> > >> > >> > </dtml-if> >> > >> > >> > >> > >> > >> > This works okay, and stores the variable SelectSID in the >> > >> > >> request for the >> > >> > >> > code to pick up again on it's next pass. >> > >> > >> > >> > >> > >> > However, on the next pass, the variable SelectSID doesn't >> > >> exist! As >> > >> the >> > >> > >> > variable is now REQUEST.SelectSID - and the following code >> doesn't >> > >> > >> work.... >> > >> > >> > >> > >> > >> > <dtml-if "REQUEST.SelectSID"> >> > >> > >> > SelectSID = <dtml-var SelectSID> >> > >> > >> > <dtml-call "REQUEST.set('SelectSID', >> REQUEST.SelectSID)"> >> > >> > >> > </dtml-if> >> > >> > >> > >> > >> > >> > ...as an error is thrown up if REQUEST.SelectSID >> doesn't exist! >> > >> > >> > >> > >> > >> > Anybody got a simple answer to my dilemma?!! >> > >> > >> > >> > >> > >> > Many thanks for any help! >> > >> > >> > >> > >> > >> > Regards, >> > >> > >> > >> > >> > >> > Greg Conway. >> > >> > >> > >> > >> > >> > This electronic transmission and any files attached to it are >> > >> strictly >> > >> > >> > confidential and intended solely for the addressee. >> If you are >> not >> > >> > >> > the intended addressee, you must not disclose, copy >> or take any >> > >> action >> > >> > >> > in reliance of this transmission. If you have received this >> > >> > >> > transmission in error, please notify us by return >> and delete the >> > >> same. >> > >> > >> > Further enquiries/returns can be posted to >> postmaster(a)gmlnt.com >> > >> > >> > Thank you. >> > >> > >> > >> > >> > >> > _______________________________________________ >> > >> > >> > 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 ) >> > >> > >> > >> > This electronic transmission and any files attached to it are >> strictly >> > >> > confidential and intended solely for the addressee. If you are not >> > >> > the intended addressee, you must not disclose, copy or take any >> action >> > >> > in reliance of this transmission. If you have received this >> > >> > transmission in error, please notify us by return and delete the >> same. >> > >> > Further enquiries/returns can be posted to postmaster(a)gmlnt.com >> > >> > Thank you. >> > >> > >> > >> > _______________________________________________ >> > >> > 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 ) >> > >> >> > >> > This electronic transmission and any files attached to it are strictly >> > confidential and intended solely for the addressee. If you are not >> > the intended addressee, you must not disclose, copy or take any action >> > in reliance of this transmission. If you have received this >> > transmission in error, please notify us by return and delete the same. >> > Further enquiries/returns can be posted to postmaster(a)gmlnt.com >> > Thank you. >> > >> This electronic transmission and any files attached to it are strictly confidential and intended solely for the addressee. If you are not the intended addressee, you must not disclose, copy or take any action in reliance of this transmission. If you have received this transmission in error, please notify us by return and delete the same. Further enquiries/returns can be posted to postmaster(a)gmlnt.com Thank you.

1 0

Fwd: Re: [Zope] port 8080 can't connect
by Scott 25 Aug '02

25 Aug '02

---------- Forwarded Message ---------- Subject: Re: [Zope] port 8080 can't connect Date: Sun, 25 Aug 2002 12:33:42 -0400 From: Scott <gildedpage(a)comcast.net> To: Richard Jones <rjones(a)ekit-inc.com> On Monday 26 August 2002 12:13 am, you wrote: > On Mon, 26 Aug 2002 2:08 am, Scott wrote: > > I just installed Zope from rpms on 8.2. The docs say that Zope should be > > available at "http://localhost:8080/" but when I try to connect I keep > > getting the error something like "can't connect to port 8080". Does > > anyone know what the problem is? > > Did you start Zope up? > > > Richard Yes, I started it with "/etc/rc.d/init.d/zope start" from the command line. SW -------------------------------------------------------

1 0

dtml-if fustration!
by Greg Conway 25 Aug '02

25 Aug '02

Hi all, I have a fustrating problem with dtml-if's!! I've tried to work round it in many ways, but there is probably an easy one I am overlooking knowing my luck... Anyway... Consider the following dtml-if statement: <dtml-if SelectSID> SelectSID = <dtml-var SelectSID> <dtml-call "REQUEST.set('SelectSID', SelectSID)"> </dtml-if> This works okay, and stores the variable SelectSID in the request for the code to pick up again on it's next pass. However, on the next pass, the variable SelectSID doesn't exist! As the variable is now REQUEST.SelectSID - and the following code doesn't work.... <dtml-if "REQUEST.SelectSID"> SelectSID = <dtml-var SelectSID> <dtml-call "REQUEST.set('SelectSID', REQUEST.SelectSID)"> </dtml-if> ...as an error is thrown up if REQUEST.SelectSID doesn't exist! Anybody got a simple answer to my dilemma?!! Many thanks for any help! Regards, Greg Conway. This electronic transmission and any files attached to it are strictly confidential and intended solely for the addressee. If you are not the intended addressee, you must not disclose, copy or take any action in reliance of this transmission. If you have received this transmission in error, please notify us by return and delete the same. Further enquiries/returns can be posted to postmaster(a)gmlnt.com Thank you.

4 8

FW: [Zope] dtml-if fustration! (right code!)
by Greg Conway 25 Aug '02

25 Aug '02

Okay, scrub all that... Here's the right code! :) <dtml-in "REQUEST.CustomLinkVars"> <dtml-let Counter=sequence-index> <dtml-let OuterVar=sequence-item> <dtml-if "_.getattr(REQUEST,REQUEST.CustomLinkVars[Counter])"> <dtml-if sequence-start> <dtml-if "REQUEST.Where==0"> WHERE </dtml-if> </dtml-if> <dtml-if "REQUEST.NeedSeperator==1"> AND <dtml-call "REQUEST.set('NeedSeperator',0)"></dtml-if> <dtml-var "REQUEST.CustomLinkFields[Counter]">=<dtml-var "_.int(_.getattr(REQUEST,REQUEST.CustomLinkVars[Counter]))"> <dtml-call "REQUEST.set('NeedSeperator',1)"> </dtml-if> </dtml-let> </dtml-let> </dtml-in> I'm not going to snip anything this time so I don't mess it up in any way!! REQUEST.CustomLinkVars is an array, currently containing (ie) ['SelectStudentID'] but could contain ['SelectStudentID','SelectOrgID','SelectHomeID'], etc. and could also be empty! ['']. When this array is empty, no problems - the whole section doesn't run as it's inside a <dtml-in .. > statement. that's good. The problem occurs when this array DOES contain a value, but the value of the variable it contains does not exist in the request. ie REQUEST.CustomLinkVars is an array containing ['SelectStudentID'], but SelectStudentID is not a variable in the request. I want this line... <dtml-if "_.getattr(REQUEST,REQUEST.CustomLinkVars[Counter])"> ... to test if this variable inside a variable exists inside the request, and act accordingly. BUT it doesn't - it throws up an error if the variable does not exist!! So, hopefully it makes sense THIS time!! many thanks for any help! Regards, Greg. >> -----Original Message----- >> From: zope-admin(a)zope.org [mailto:zope-admin@zope.org]On Behalf Of Greg >> Conway >> Sent: 25 August 2002 17:18 >> To: Michael >> Cc: Zope@Zope. Org >> Subject: RE: [Zope] dtml-if fustration! >> >> >> Hi Michael, >> >> Okay, here is a prime example of what I am trying to achieve! >> >> here's the code... (it's a snippet of a DTML method) >> >> >> <dtml-if "_.getattr(REQUEST,REQUEST.Variable)"> >> <dtml-in "REQUEST.CustomLinkFields"> >> <dtml-let Counter=sequence-index> >> >> <dtml-var "REQUEST.CustomLinkFields[Counter]">=<dtml-var >> "_.int(_.getattr(REQUEST,REQUEST.Variable))"> >> >> </dtml-let> >> </dtml-in> >> </dtml-if> >> >> "Variable" as var in memory, let's say it contains "SelectStudentID". >> >> Now... sometimes this DTML method (form) will be called from >> another form so >> the variable "Variable" set, and other times this variable will >> not be set! >> >> The idea is the middle line of code should print the contents of the >> variable "SelectStudentID" - if it exists. If it doesn't, I want Zope to >> ignore this line of code. >> >> I have to put the code [ _.getattr() ] inside quotes [ " ... " >> ], but if I >> do this then errors occur when I call the form without this >> variable set - >> as it doesn't exist. >> >> I got round the problem by hard-coding the variable name into >> the page, but >> I don't want to do this, I want DTML to look up the value for me, and act >> based on whether there is such a variable stored in the request, >> the way a >> normal <dtml-if Variable> would work - by not throwing up an error if the >> variable doesn't exist!! >> >> Hope this is now clearer, any enlightenment much appreciated!! >> >> Regards, >> >> Greg. >> >> >> -----Original Message----- >> >> From: Michael [mailto:michael@nichestaffing.com] >> >> Sent: 24 August 2002 20:15 >> >> To: Greg Conway; Zope@Zope. Org >> >> Subject: Re: [Zope] dtml-if fustration! >> >> >> >> >> >> This statement will check to see if SelectSID contains a value, >> >> if true, it >> >> will set the value, if false, it will not. I'm not really >> sure of what >> >> you're trying to do with [ SelectSID = <dtml-var SelectSID> ] >> >> >> >> <dtml-if expr="selectSID"> >> >> <dtml-call "REQUEST.set('SelectSID',SelectSID)"> >> >> </dtml-if> >> >> >> >> >> >> Michael >> >> >> >> On Saturday 24 August 2002 10:56 am, Greg Conway wrote: >> >> > Hi all, >> >> > >> >> > I have a fustrating problem with dtml-if's!! I've tried to >> >> work round it in >> >> > many ways, but there is probably an easy one I am overlooking >> >> knowing my >> >> > luck... >> >> > >> >> > Anyway... Consider the following dtml-if statement: >> >> > >> >> > <dtml-if SelectSID> >> >> > SelectSID = <dtml-var SelectSID> >> >> > <dtml-call "REQUEST.set('SelectSID', SelectSID)"> >> >> > </dtml-if> >> >> > >> >> > This works okay, and stores the variable SelectSID in the >> >> request for the >> >> > code to pick up again on it's next pass. >> >> > >> >> > However, on the next pass, the variable SelectSID doesn't >> exist! As the >> >> > variable is now REQUEST.SelectSID - and the following code >> >> doesn't work.... >> >> > >> >> > <dtml-if "REQUEST.SelectSID"> >> >> > SelectSID = <dtml-var SelectSID> >> >> > <dtml-call "REQUEST.set('SelectSID', REQUEST.SelectSID)"> >> >> > </dtml-if> >> >> > >> >> > ...as an error is thrown up if REQUEST.SelectSID doesn't exist! >> >> > >> >> > Anybody got a simple answer to my dilemma?!! >> >> > >> >> > Many thanks for any help! >> >> > >> >> > Regards, >> >> > >> >> > Greg Conway. >> >> > >> >> > This electronic transmission and any files attached to it >> are strictly >> >> > confidential and intended solely for the addressee. If you are not >> >> > the intended addressee, you must not disclose, copy or take >> any action >> >> > in reliance of this transmission. If you have received this >> >> > transmission in error, please notify us by return and >> delete the same. >> >> > Further enquiries/returns can be posted to postmaster(a)gmlnt.com >> >> > Thank you. >> >> > >> >> > _______________________________________________ >> >> > 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 ) >> >> >> >> This electronic transmission and any files attached to it are strictly >> confidential and intended solely for the addressee. If you are not >> the intended addressee, you must not disclose, copy or take any action >> in reliance of this transmission. If you have received this >> transmission in error, please notify us by return and delete the same. >> Further enquiries/returns can be posted to postmaster(a)gmlnt.com >> Thank you. >> >> _______________________________________________ >> 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 ) >> This electronic transmission and any files attached to it are strictly confidential and intended solely for the addressee. If you are not the intended addressee, you must not disclose, copy or take any action in reliance of this transmission. If you have received this transmission in error, please notify us by return and delete the same. Further enquiries/returns can be posted to postmaster(a)gmlnt.com Thank you.

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