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RE: [Zope] Beginner DTML question: dereferencing a variable
by Michel Pelletier 06 Apr '99

06 Apr '99

> -----Original Message----- > From: Richard Wackerbarth [mailto:rkw@dataplex.net] > Sent: Tuesday, April 06, 1999 9:37 AM > To: Michel Pelletier > Cc: zope(a)zope.org > Subject: RE: [Zope] Beginner DTML question: dereferencing a variable > > > > > On Tue, 6 Apr 1999, Michel Pelletier wrote: > > > Martin Dougiamas wrote: > > > > I want to check if a folder of that name already exists > > > > under the current folder, so I can decide to create it or not. > > >  > >  > > Folder Exists > >  > >  > > > > You want to use a DTML Method to get the expected result. > > OK, that handles the case where you want to find the object and do > something to it. > > How do you propose to handle the opposite case (which Dougiamas-san > requested) -- do something if the entry DOES NOT exist. >   No folder named   Go to folder <a href="">   > IMHO, this calls for a local variable to set and test. > which is essentialy what I did. -Michel > You might use REQUEST.set('I_found_the_folder' ... > > However, the use of the global REQUEST namespace has its hazards :-( >

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RE: [Zope] Beginner DTML question: dereferencing a variable
by Michel Pelletier 06 Apr '99

06 Apr '99

> -----Original Message----- > From: Martin Dougiamas [mailto:martin@complex.curtin.edu.au] > Sent: Tuesday, April 06, 1999 7:00 AM > To: zope(a)zope.org > Subject: Re: [Zope] Beginner DTML question: dereferencing a variable > > > Martin Dougiamas wrote: > > I want to check if a folder of that name already exists > > under the current folder, so I can decide to create it or not. > > > > Intuitively, I first tried: > > > >  > > <H3>FOLDER EXISTS</H3> > >  > > <H3>FOLDER DOES NOT EXIST</H3> > >  > > I seem to found a solution myself. This seems to work: > >  > <H3>FOLDER  EXISTS</H3> >  > <H3>FOLDER  DOES NOT EXIST</H3> >  > > ...as long as there's not a object with that name UP the > hierarchy, I suppose. > Yes, acquisition could defeat you with this method. Try the objectIds method. From /lib/python/OFS/ObjectManager.py, def objectIds(self, spec=None): """Return a list of subobject ids. Returns a list of subobject ids of the current object. If 'spec' is specified, returns objects whose meta_type matches 'spec'. """ So you can use the sequence that objectIds returns in your DTML to find out if any subobjects if meta_type 'Folder' exist with the username your looking for.   Folder Exists   You want to use a DTML Method to get the expected result. -Michel > If there's a cleaner way to do this I'd still like to know it. > > Cheers! > Martin > > > _______________________________________________ > 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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how come I can't add an external method...
by Tony McDonald 06 Apr '99

06 Apr '99

Hi all, I'm trying to add this snippet as an external method ------ import htmlfmt def test(): "Testing zope 1" a = htmlfmt.UL(("1", "2", "3")) return a print test() ----- (htmlfmt is a library from the van Rossum, Watters and Ahlstrom book 'Internet programming with Python'). It does work... 96 % python test.py <UL> <LI>1 <LI>2 <LI>3 </UL> but trying to add this as an external method just does not happen. I'm left staring at a rotating beachball while the system tries to add it to the database. The following works fine... ------- def test(): "Testing zope 2" a = """<UL> <LI>1 <LI>2 <LI>3 </UL> """ return a -------- Can someone please point out the fly in the ointment here? I feel like I'm sitting in a corner wearing a <|0 at the moment... ta tone ------ Dr Tony McDonald, FMCC, Networked Learning Environments Project The Medical School, Newcastle University Tel: +44 191 222 5888 Fingerprint: 3450 876D FA41 B926 D3DD F8C3 F2D0 C3B9 8B38 18A2

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Beginner DTML question: dereferencing a variable
by Martin Dougiamas 06 Apr '99

06 Apr '99

I know the answer to this must be pretty simple, but I can't work it out from any of the docs and it's driving me nuts. I have a variable that contains a username:  I want to check if a folder of that name already exists under the current folder, so I can decide to create it or not. Intuitively, I first tried:  <H3>FOLDER EXISTS</H3>  <H3>FOLDER DOES NOT EXIST</H3>  But all this seems to detect is if the variable is set or not. :( Other variations are getting me nowhere ... what's missing? -- Martin Dougiamas

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[ANNOUNCE]CookieCutter product uploaded.
by TFE MMS JARVIS JOHN 06 Apr '99

06 Apr '99

Thanks to DC, the CookieCutter product can be dowloaded at http://www.zope.org/Download/Contrib/CookieCutter.tar.gz The CookieCutter product allows the storage of multiple data objects of possibly differing types in a single cookie. This is accomplished by storing the objects in a dictionary which is pickled via dumps and sent in the cookie. At the server, the cookie is unpickled via loads and, if desired, copied into the REQUEST namespace. Documention is included in the product's doc string as well as README.txt. This really is a simple product and shoudn't be too hard to understand, improve, and customize. As a word of WARNING, Amos Latteier pointed out to me that this product poses security risks as it unpickles code received from over a network. There is a chance that a malicious user could put a trojan horse into a cookie that could compromise your server. I recommend studying the Python documentation for pickle before using this.You've been warned. Some other points: 1. CookieCutter doesn't (and can't) avoid cookie name clashes. 2. Dictionary keys contained in the cookie but not specified in the CookieCutter object are ignored. (This is a feature!) 3. If you're only storing strings, it might be more efficient to write a method to flatten out the dictionary into a "key<separator>value" like string and store that instead of a pickle. This would also reduce the security worry. 4. Pickles can get really big. You've got a 4KB limit but Be Nice. 5. I can never get my source code to look as good as everyone else's. >:^( 5. The usual disclaimers apply. Use this software at your own risk. Looking forward to comments/criticism. John Jarvis BTW, I couldn't get RESPONSE.expireCookie to work so CookieCutter implements its own (which is actually a modified copy from Request.py ;^). Has anyone else had problems with this?

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Unable to get manage scree ... looping on contacting host
by Bill Anderson 05 Apr '99

05 Apr '99

Ok, I have been prototyping a new website on a non-standard port, to keep the current one functional. Now that the new site is ready, and I switch it to port 80, I have a problem. I can acess the site just fine. However, when I try to go to the manage screen, it loops on contacting the server (from netscape). The logs fill up with: anderson - - [05/Apr/1999 16:58:29] "GET /manage_main HTTP/1.0" 401 - and anderson - - [05/Apr/1999 16:58:23] "GET /manage_menu HTTP/1.0" 401 - and anderson - - [05/Apr/1999 16:58:23] "GET /manage HTTP/1.0" 401 - Running the current download, without apache/pcgi. Any ideas? If I switch back to 8080, it works fine. -- Bill Anderson Linux Administrator MCS-Boise (ARC) banderson(a)boi.hp.com My opinions are just that; _my_ opinions.

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Whats the correct way...
by raver＠box.dust.za.net 05 Apr '99

05 Apr '99

Hi! First off all I want to apologize if this question is way off topic here, but I'm stuck and don't know where else to turn my question. Heres the situation: I've made a form to let people search a database where they can choose wich datafields is going to be shown in the result (this is done by several checkboxes). Now if I pass this forms data onto a ZSQLmethod that handles the sql select query (variable names from the checkboxes are handled by ' - scentences') I end up with an error if not all of the checkboxes are checked out. What would be the correct way to have this handled? (Choose what data to be displayed) Sture Lygren

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[Beginner question] Date last revised
by Mitchell Marks 05 Apr '99

05 Apr '99

Hello, What way is there to refer to the last-modified date of a Zope document, from within it? Since it's displayed on the management page for a document, I'm sure it's accessible somehow, but so far guessing at names to use in  hasn't gotten me anywhere, and I don't see it listed in Properties. Am I overlooking it in one of those lists in the User Guide? Thanks, Mitch Marks -- Mitchell Marks (773) 702-6041 AAC-010A CUIP: Chicago Public Schools / Univ. of Chicago Internet Project http://cuip.uchicago.edu/cuip "The University of Chicago -- fun and sun capital of the Midwest"

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#with tag problems
by Christopher Petrilli 05 Apr '99

05 Apr '99

OK, here's the DTML:   <H3></H3> <P> <B>Seen</B>:  @  </P>    The problem is this... I'm passing this an object id as a GET variable (showFoo?movie=bar), and it's not working correctly to grab the title of the document ID I'm handing it. movie = DTML document, it has all those properties (title, review_date, theatre), but theydon't want to show... I get attribute errors. If I take out all but  I get the title of the enclosing folder, not the movie document. THis works just fine in another DTML method that looks idental to this one. Ideas? Must be something silly. Chris -- | Christopher Petrilli ``Television is bubble-gum for | petrilli(a)amber.org the mind.''-Frank Lloyd Wright

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Re: [Zope] ZServer & CGI scripts
by Amos Latteier 05 Apr '99

05 Apr '99

At 05:05 PM 4/2/99 -0800, you wrote: >Can ZServer run normal cgi scripts?? > >My thought is to run ZServer and run PHP3 scripts via a php3 compiled cgi. > >Anybody have thoughts on this?? I believe that medusa comes with a CGI handler, or at least the beginnings of one. Since ZServer is meant to serve Zope, not CGI, it doesn't come with the necessary modules, but you could probably get something working by poking around with medusa. However, if you're only interested in php, I would suggest Apache, since there is a php module for it which is quite popular. -Amos PS Find out more about medusa at http://www.nightmare.com/medusa/

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