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Setting title in an external method
by Greg Ward 13 Mar '00

13 Mar '00

Hi all -- A common idiom around here is to use an external method to process a form and, if an error that the user can't fix occurs -- eg. you can't view such-and-such an object because it doesn't exist, or you don't have privileges -- use "return" to show them the contents of a DTML method that explains the problem. Here's a simple example: def my_xm (self, REQUEST=None, RESPONSE=None): # ... churn away, processing the form ... return self.my_dtml (self, REQUEST, RESPONSE) Here's the source for the "my_dtml" DTML method: <dtml-var standard_html_header> title: <dtml-var title> document_title: <dtml-var document_title> This is the <dtml-var document_id> Document in the <dtml-var title_and_id> Folder. <dtml-var standard_html_footer> Both "my_xm" and "my_dtml" are in the root directory of an almost-fresh Zope 2.1.4 installation. The problem is that the "title" when I call "my_xm" (ie. the "Title:" HTTP header and "<TITLE>" HTML tag) is just "Zope", which I presume is the title *of the folder* containing the external method. Yuck. I want the form result to have a title of its own, eg. "Error Viewing Blah-blah". What's the best way to do this? Possibilities that occur to me: * redirect to the error-reporting DTML Method instead (but I like to keep the number of redirects to a minimum) * use a DTML Document instead of a Method (not sure if this will work, and sometimes I really do want it to be a method -- eg. it might be called from within a larger Document in some context) * set some magical attribute of 'self' or 'RESPONSE' in the external method; I tried "RESPONSE.setHeader ('Title', 'My Title')", but that didn't work Any other ideas? Thanks -- Greg -- Greg Ward - software developer gward(a)cnri.reston.va.us Corporation for National Research Initiatives 1895 Preston White Drive voice: +1-703-620-8990 Reston, Virginia, USA 20191-5434 fax: +1-703-620-0913

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manage_delObjects problem
by M.J. Stahl 13 Mar '00

13 Mar '00

Can anyone give me any insight as to why the below URL doesn't work. http://diis/inventory/outofstock/OOSStorage/manage_delObjects?id=8185 After the URL is visited the manage screen comes up and tells me "No Items were specified!" So I am a little confused as to why there is no item specified, when I am sending the 'id' number with the URL, and will the activation of this hyperlink take me to the manage screen or just delete the object and leave the user at the page where the hyperlink was requested from. Best regards, -M.

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recommended db?
by Sam Gendler 13 Mar '00

13 Mar '00

I need record level locking in a database, and I need it quickly, without having a huge learning curve or added cost of administration. What do folks out there recommend. Does Postgres allow record level locking? I am on a linux platform, and refuse to use any MS products, so don't go there. Additionally, I need to be able to easily export database content as both SQL statements and in some sort of delimited text file format. I can do the latter with Zope, of course, but it is fairly slow and expensive. MySQL does all of that nicely, but doesn't have record level locking. Please respond to me as well as the list. --sam -- Sam Gendler Chief Technology Officer - Impossible, Inc. 1222 State St. Suite 250 Santa Barbara CA. 93101 w: 805-560-0508 f: 805-560-0608 c: 805-689-1191 e: sgendler(a)impossible.com

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getting port number into URL - was where port num gone
by Andy Heath 13 Mar '00

13 Mar '00

I'm sorry to ask this again but there must be a way of getting a port number into a url without being explicit about the address. There has to be because absolute_url() does it inside a tree. I just don't know what I can use and the expression syntax to do so. I have this root ltscimages someimage somefolder somedtlmdoc and I'm running both apache and zope. Some pages get served zope-->apache and some direct from zope. ZServer is running on 8080. Within somedtmldoc I want an image from ltscimages. This code <dtml-var "ltscimages.someimage"> produces a reference to the image but without the port number. In the ouput html I want http://host:8080/ltscimages/someimage but I get http://host/ltscimages/someimage I can work around this by serving the image via the zope-->apache method but that's crummy - I want only to use apache when I have to because of the efficiency effect. Putting the port in explicity is also crummy because its less transportable. How can I either 1. always get the port num in or 2. get the port in if its not the default 80. Elswhere in the same code absolute_url() does this correctly for code inside a tree. Would there be a way to use this here? Sorry for so many newbie q's. I promise I'll give back when I can. Andy -- ------------------------------------------------- Andy Heath a.k.heath(a)open.ac.uk The Open University +44 (0) 114 2885738

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Catch error
by Sin Hang Kin 13 Mar '00

13 Mar '00

How can I catch the exceptions in dtml so if a page contain an error, only the error will be left out without making the whold page an error message? rgs, Kent Sin

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The Debugger Is Your Friend.
by Michel Pelletier 13 Mar '00

13 Mar '00

Thanks to the folks who sent in suggestions for The Debugger Is Your Frend. Its new home is: http://www.zope.org/Members/michel/HowTos/TheDebuggerIsYourFriend/ More comments are of course welcome. -Michel

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Please help
by Troy Tan Wee Teck 13 Mar '00

13 Mar '00

I have follow the Zope Content Manager's Guide as per provided by your website but I am now stuck with the part about factories. What are exactly factories and how they do to duplicate the product by simply selecting the factory from the Add List. Thank you, your help will be appreciated

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Re: [Zope] WorldPilot Calendar fixes and (UW) IMAP Options available
by rossini＠biostat.washington.edu 13 Mar '00

13 Mar '00

>>>>> "RH" == Ryan Hughes <rh(a)n-h.net> writes: RH> I took a look at the imap code. it basically complains that RH> the SELECTed folder is not read writable. As far as I can RH> remember the problem may be that UW IMAP locks your folders RH> when they get selected. Possibly you're accessing that folder RH> with a different client concurrently? Yes! But I think that the concurrency might be happening from Zope/WorldPilot? I.e. that it is submitting another command prior to the first results? I ran (the patched) imaplib.py by itself (it has a "sample session") which gave "reasonable" results... RH> Let me know if that's the problem, since I have heard about RH> this problem a few times, and I thought it was a locking issue RH> on UW IMAP. Or, it might be an instance of the way recent UW imap daemons deal with the maildir issue, copying files to the local user account from the mail spool... (see documentation, which I'm not yet sure that I understand; but then again, I'm a research biostatistician, not a sysadmin/www-master...). I replicated it using UW imap locally on the linux (debian) box. Maybe I'll try firing up Cyrus -- does anyone know if it "drops in" in the same way that UW Imap does? (i.e. install and go...). Debian's got it, so maybe I can do that... best, -tony -- A.J. Rossini Research Assistant Professor of Biostatistics Biostatistics/Univ. of Washington (Th) Box 357232 206-543-1044 (3286=fax) Center for AIDS Research/HMC/UW (M/F) Box 359931 206-731-3647 (3693=fax) VTN/SCHARP/FHCRC (Tu/W) Box 358080 206-667-7025 (4812=fax) rossini(a)(biostat.washington.edu|u.washington.edu|hivnet.fhcrc.org) http://www.biostat.washington.edu/~rossini

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date comparison
by Kyle Burnett 13 Mar '00

13 Mar '00

anyone know a quick way to compare two date strings without having to complete tear the string apart? thanks, kyle

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Python or C Library error?
by Eric L. Walstad 13 Mar '00

13 Mar '00

Well, I thought I had it working... I am trying to get MySQL to work with Zope. I installed ZMySQLDA and was able to make a connection to a database. I was even able to make an SQL method that added records to the table. However, when I added a method to lookup a record in the table, I get the following error when I "Add and Test" it from Zope: Error, exceptions.ImportError: /usr/lib/python1.5/site-packages/_mysqlmodule.so: undefined symbol: Py_InitModule3 This is the same error I got when I tried to install MySQLdb. That's why I tried to install MySQLDA instead. However, I can't tell if this error stems from C or from Python. I don't know much about Python (the book I ordered isn't here yet), but it looks like the error is starting there. If anyone has run into this error before, or has a clue as to how to fix it, please let me know. OR, if you have a working Zope/MySQL combo and wouldn't mind sending me a copy of your '_mysqlmodule.so' binary, maybe that would do it? Thanks, Eric.

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