March 1999 - Zope - Zope lists

FW: [Zope] Namespace Confusion
by Shaw, Howard 30 Mar '99

30 Mar '99

Once again I forgot to cc the list. Howard C. Shaw III Programmer/SysAdmin St. Thomas High School > ---------- > From: Shaw, Howard > Sent: Tuesday, March 30, 1999 1:38 PM > To: 'rkw(a)dataplex.net' > Subject: RE: [Zope] Namespace Confusion > >  >  >  >  >  >  >  >  > > Howard C. Shaw III > Programmer/SysAdmin > St. Thomas High School > > > ---------- > From: Richard Wackerbarth[SMTP:rkw@dataplex.net] > Reply To: rkw(a)dataplex.net > Sent: Tuesday, March 30, 1999 1:19 PM > To: zope(a)zope.org > Subject: [Zope] Namespace Confusion > > I'm trying to convert shell scripts into DTML methods. > > Please excuse the pseudo code. I'm using it to represent the problems > that I am addressing. > > set basket_total=0 > set taxable_total=0 > foreach item( 'apple', 'peach', 'soap', 'pear', 'plum', 'magazine' ) > if (! isfood($item)) > @ taxable_total = $taxable_total + price_of($item) > endif > @ basket_total = $basket_total + price_of($item) > endfor > print "Of the $basket_total total, $taxable_total is taxable" > > > 1) Can I generate an explicit list rather than getting it with > as the result of either a database query or enumeration of an object? > > 2) How do I generate "local" variables. > I know that I could use the REQUEST variable as a global property > store. > However, because of nesting, global (REQUEST) variables are not > desirable. > > I'd like to say something like the following: > >  >  > ... >  > ... >  > ... >  > > Does Zope's DTML have constructs to address either of these? > > > _______________________________________________ > 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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External Methods
by JB 30 Mar '99

30 Mar '99

Please excuse my lack of zoping intuition but I hoped someone could help with this problem. I read all the doc's I could find but seem to be missing something. It goes like this... I have a ZSQLMethod that returns some tuples. There is a field in the tuple which I wish to use to lookup an external file and return a jpeg, if available. I've created an external method called 'getPic' which I wish to pass the key field to locate the file with but I can't seem to get at the variable. e.g ----------  <td></td> <td> )" --></td>  ---------- This doesn't work for reasons not obvious to me. I've tried creating a class to handle the records. No go. Basically, the External method can't get at the vars defined on each loop thru the sequence returnd from the SQLMethod. Any insight would be appreciated. thanks jb

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Namespace Confusion
by Richard Wackerbarth 30 Mar '99

30 Mar '99

I'm trying to convert shell scripts into DTML methods. Please excuse the pseudo code. I'm using it to represent the problems that I am addressing. set basket_total=0 set taxable_total=0 foreach item( 'apple', 'peach', 'soap', 'pear', 'plum', 'magazine' ) if (! isfood($item)) @ taxable_total = $taxable_total + price_of($item) endif @ basket_total = $basket_total + price_of($item) endfor print "Of the $basket_total total, $taxable_total is taxable" 1) Can I generate an explicit list rather than getting it with as the result of either a database query or enumeration of an object? 2) How do I generate "local" variables. I know that I could use the REQUEST variable as a global property store. However, because of nesting, global (REQUEST) variables are not desirable. I'd like to say something like the following:   ...  ...  ...  Does Zope's DTML have constructs to address either of these?

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Template Printing from Zope
by Jason Spisak 30 Mar '99

30 Mar '99

I would like to trigger a DTML document to print after the user creates it. ( There are a few documents in my project that need to be snail mailed) Circumstances aside, they aren't allowed to print from Navigator, so I'd like Zope to shoot it out without the user having to have a printer configured. If a printer is configured to work with the server, can Zope send it to lpr? I have zero experience there. :-( Any suggestions? Jason Spisak webmaster(a)mtear.com

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RE: DTML question
by Amos Latteier 30 Mar '99

30 Mar '99

> Sorry to bother you with these questions but I can't post to > egroups. I > tried senting messages on friday, saturday, monday and > today but none > went through. I've sent from the egroups post page, and from my > email... no luck. Please feel free to cc the list with > any answers > or pointers to answers. You can post to the list without egroups by sending mail to zope(a)zope.org. You can also read the archives without egroups at http://www.zope.org/pipermail/zope/. > I've been working throught the DTML manual and I've come > across a problem; > I can't get the #in tag > to do what I want with a dictionary. I'm using it from > Python for now, but > plan to use this within a Zope app soon. > > > The following DTML code exits with this error: "...line 641, > in renderwob > l-len(sequence)" > >  >   >  I think what you want is access to the dictionary's items() right?   :   The mapping attribute is not relevant here. It means treat sequence-items as mappings not instances, that is to say, look up vars with __getitem__, not __getattr__. The DTML User's Guide is your friend. -Amos

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Re: [Zope] external methods
by Service Informatique CHSR 30 Mar '99

30 Mar '99

>Nope, > >With that definition, my_method expect to be called with the arguments >set, eg  to display "Zope is cool". > >However, I want to get the variable l from the namespace. (application >variables made with REQUEST.set, Folder or document properties, etc.) >The question was: is self.REQUEST the only way to access the >variable namespace? And the only way to *modify* the variable namespace >from external methods (with self.REQUEST.set)? I'd like to be more precise. Suppose my_method is: def my_method(self): if self.REQUEST.has_key('my_var'): return "oh yes" return "boooo" Now, I write in DTML:      Believe me or not, the result is: boooo boooo my_value You can now understand why I ask how to access the variable namespace from external methods. How can I test the existence of my_var, and access its value??? Keep the good work, I might ask you some of your photos for my daily worship :-) Regards, Jephte CLAIN Service Informatique

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RE: [Zope-dev] Object to string
by Shaw, Howard 30 Mar '99

30 Mar '99

Sorry, guess I wasn't clear enough. What I am thinking should work is ...    Howard C. Shaw III Programmer/SysAdmin St. Thomas High School > ---------- > From: Jason Spisak[SMTP:webmaster@mtear.com] > Sent: Tuesday, March 30, 1999 6:48 AM > To: zope-dev(a)zope.org > Subject: Re: [Zope-dev] Object to string > > Damn it didn't work. I if I post again on this subject I get a free > set > of steak knives. ;-) > > I tried appending PARENTS[-1]. to the counter property to tell it that > the counter property I want is a property of the root folder. But > when > I try to save the changes to the DTML, it chokes. Here's the code and > the traceback: > >  >  > > The counter property is type:int and set to 0. > > >  > > Unpack sequence of wrong size? Hmm, any suggestions? > > All the best, > > Jason Spisak > webmaster(a)mtear.com > > Shaw, Howard wrote: > > > > Actually, he's talking about simple folder property manipulation > (ok, > > its not so simple), the Counter product is intended for visible > counters > > incremented by webpage access. > > > > However, if a Counter is added to the folder as 'countob', and > marked to > > NOT check ips, then it can be handled thusly... (or should be able > to, > > anyhow.) > > > >  > >  > > > > The parameter on the first line is normally '_', and can be passed > in if > > you like. Not passing it in when the countob is marked to check ips > will > > generate a traceback. > > > > The only real reason I can think of for using a Counter object > instead > > of the folder properties is to be able to use acquisition to make > the > > names globally unique; but the same thing can be done by prepending > > PARENTS[-1]. to Pavlos' technique. > > > > Also, if you use the counter object, you will have to set the "How > many > > hits before saving to the database?" line to 0. > > > > Pavlos' method was not recently added, but has been usable for a > > considerable period of time, and has the added advantage of not > needing > > a Product added to support it. > > > > Howard C. Shaw III > > Programmer/SysAdmin > > St. Thomas High School > > > > > ---------- > > > From: Jason Spisak[SMTP:webmaster@mtear.com] > > > Sent: Monday, March 29, 1999 6:12 PM > > > To: Pavlos Christoforou; zope-dev(a)zope.org > > > Subject: Re: [Zope-dev] Object to string > > > > > > Pavlos: > > > > > > I had forgotten about the recent addition of the counter object to > our > > > arsenal of Zopeist tools. Shame on me. Thanks for the heads-up! > > > > > > Jason Spisak > > > webmaster(a)mtear.com > > > > > > > > > > > On Mon, 29 Mar 1999, Jason Spisak wrote: > > > > > > > > > Oh, to follow up on my last post about turning an object to a > > > string > > > > > without leaving DTML, I have tried: > > > > > > > > > >  > > > > >  > > > > > > > > > > All help welcome! > > > > > > > >  will return a string > representation > > > of > > > > the object. > > > > > > > > Alternatively you can generate unique object ids by adding a > counter > > > > property to your containing folder (or root folder) and modify > it > > > > everytime you generate a new object. For instance:: > > > > > > > >  > > > >  > > > >  > > > > > > > > Pavlos > > > > > > -- > > > Jason Spisak > > > webmaster(a)mtear.com > > > > > > _______________________________________________ > > > Zope-Dev maillist - Zope-Dev(a)zope.org > > > http://www.zope.org/mailman/listinfo/zope-dev > > > > > > (For non-developer, user-level issues, use the companion list, > > > zope(a)zope.org, http://www.zope.org/mailman/listinfo/zope ) > > > > > -- > Jason Spisak > webmaster(a)mtear.com > > _______________________________________________ > Zope-Dev maillist - Zope-Dev(a)zope.org > http://www.zope.org/mailman/listinfo/zope-dev > > (For non-developer, user-level issues, use the companion list, > zope(a)zope.org, http://www.zope.org/mailman/listinfo/zope ) >

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E-Commerce
by Mike Pelletier 30 Mar '99

30 Mar '99

If I'm really lucky, I might be getting a contract to put together a rather large site which includes selling the client's product over the web. They'll want to be doing credit card transactions. Has anyone been working on a shopping cart app for Zope, or perhaps even utilities to interact with a credit card transaction service? It's much quicker to buy than write! Mike. -- --- | Mike Pelletier Work: 519-746-1607 /opeware! | Software Developer Home: 519-725-7710 --- | mike(a)zopeware.com Fax: 519-746-7566 http://www.zopeware.com | Zopeware is not endorsed by Digital Creations

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DTML Methods
by Shaw, Howard 30 Mar '99

30 Mar '99

Using Netscape 3.04, I can't edit the text in DTML Methods. I get the textbox, and I can place my cursor where I choose, and scroll through it, but I can't type in it, I can't paste into it. I can copy the whole contents, make a DTML Document, paste it in, and edit there! Any idea what's going on? When I access it from Netscape 4.07 on Linux it works fine... Howard C. Shaw III Programmer/SysAdmin St. Thomas High School

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Frustrating
by Tom Deprez 30 Mar '99

30 Mar '99

Hi, I'm getting really frustrating on this subject. Pff, I believe the Zope-people have made already a great effort in their documentation. So I guess my problem is my own bad english. shhg. I finally got the Postgressql adapter compiled, thanks to two great people! Thanks for this already. But now I'm confused? How to use it in Zope? When I go to the product management I see the all the installed products including : ZPyGreSQLDA (broken product APyGreSQL).... I guess here is already something wrong (broken... is not a positive word :-( ) But then, how can I work with it? How can I use it in Zope...? How can I add it to the 'Add list' . I read of a connection string... but where to place it? Sggh, I've read in the manuals, Q&A, ... but I still don't get how to use it.... Please, somebody, help...! Thanks in advance, The Idiot, Tom.

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