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more on SQL tree structures.
by Anthony Baxter 29 Jul '99

29 Jul '99

I've got a db table that's essentially storing a tree of objects - ( obj_id int, parent_id int, name varchar ) I've got this working with the #tree display fine, with the help of the previous discussions on zope-list (thank god I index my mail spool) The next question is a bit trickier - Given an obj_id, I want to display (in zope) the list of parent_ids of it back to the root object - any ideas on the best way to do this loop? I can always just do it in an external method, but this seems like cheating to me. Anthony

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Oops--ZServer on Port 80
by Mike Owens 29 Jul '99

29 Jul '99

OK false alarm. It turns out that I had ftp on port 21 going and when I tried the -P option it conflicted.

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Zope2b1 and Zclass permission ... something missing
by Bill Anderson 29 Jul '99

29 Jul '99

Ok, have a nice little zope2 server that was wroking fine ... but now, I have upgraded it to beta1, and now, I have an authentication issue. I have ZClass "Dancer". This Dancer object has the property "title", simple enough. Unfirtunaely, now when I click on the link to a particular dancer (has an index_html method that displays various properties), it tells me I am not authorized to access "title". Thinking this may be related to my other issue, I went looking for the "Access Content Information". Sure enough, it was disabled, but when I went to add it, it is missing from the selectbox! It also claims (the product itsself) that it inherits this. I have this set for anonymous. Still, no accessing it. oh ... more yet! Even when logged in as the superuser, I get this! ... <meek> help? </meek> ... Bill

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Re: [Zope] ZClass subclassing a File
by Bruce C. Dillahunty 28 Jul '99

28 Jul '99

I'm going to put this on the list to see if anybody else has any ideas (I note that I just sent it back to Brian, not the list). The short summary is I have a ZClass (MSFile) that is based on the File class provided with Zope. I add some properties to it. If I add an instance of this type, it acts just like a File type, not showing any of the properties that I have defined... Is this a bug, or am I not doing something right? I am using some code to import the file that I borrowed from a posting by Ross Reedstrom (Thanks!!) which I'm including below to see if that helps: Bruce ---------------- <dtml-comment> Taken from e-mail from: Ross J. Reedstrom, Ph.D., <reedstrm(a)rice.edu> NSBRI Research Scientist/Programmer Computer and Information Technology Institute Rice University, 6100 S. Main St., Houston, TX 77005 Date: Mon, 14 Jun 1999 10:29:25 -0500 (11:29 EDT) on the Zope mailing list </dtml-comment>   We need to set the 'id' to the filename if it's not set. The second line strips the last component from the filename passed in the REQUEST.file object, in a platform neutral hack. It fails if someone uses the path seperator component from one platforn in the filename on another platform. E.g. slashed dates in filenames on Macs. I stole it from cookId in Image.py       <H4>Sorry! That name exists, try again (use your browser's back button)</H4>  fix this up Would you like to: New Name: rename existing file replace existing file Upload with new name    <dtml-comment>  </dtml-comment> <FORM ACTION= METHOD="GET"> <H3>File Added</H3> <INPUT type=submit value="OK"> </FORM>   --------------- > > > I have a ZClass that has some properties, etc. I > > want it to > > > be a subclass of > > > other ZClasses that I have defined, and the "File" > > type > > > provided by Zope. > > > > > > What I want is a "File" that Zope recognizes, so > > that I can > > > load a file in, > > > etc., but have the various properties/methods > > available > > > also... can this be > > > done? > > > > > > If I define my ZClass (say MSFile) as a subclass > > of > > > MSFileHolder (which > > > provides some generic file/image handling that I > > want to do), > > > and a subclass > > > of File, then it works as a File (I can never seem > > to see the > > > Properties > > > pages, etc. that I set... if I open the > > instantiation of the > > > object in the > > > management interface, I just see it as a "File"... > > its as if > > > the other stuff > > > doesn't exist. > > > > > > Am I way off base here? > > > > No - you just need to create "views" for the > > property sheets > > that you want to be able to manipulate for your > > MSFile instances. > > > > I am pretty sure I have... (I'm not at home with the > machine right this minute). > > > A quick example: go to your MSFile ZClass and click > > on "Property > > Sheets", and create a property sheet called > > "ExtraProperties" with > > a few defined properties. > > Next, click on the "Views" tab of your MSFile class > > and add a new > > "view" that points to that property sheet (type > > "Extra" in the New > > text box, and select > > "propertysheets/ExtraProperties/manage" from > > the select list and click the "Add" button. > > > > OK, one difference I have (at least during my > testing), is that I had a PropertySheet View defined > for the superclass (MSFileHolder) of which MSFile is a > subclass (inherits from/based on - not defined on the > method's page of MSFileHolder, but rather is a > separate ZClass with MSFileHolder chosen during create > time). > > In my other classes formed this way, I get a different > tab for each superclasses Properties page (just like I > want - that's great!), but for this "File" type, they > don't appear. > > Any guesses? > > Thanks, > Bruce > > > Now your MSFile instances should have an "Extra" tab > > in their mgmt > > interface, which will take you to the form for > > managing the extra > > properties on that instance. > > > > Hope this helps! > > > > > > Brian Lloyd brian(a)digicool.com > > Software Engineer 540.371.6909 > > Digital Creations http://www.digicool.com > > > > > > > > _______________________________________________ > > Zope maillist - Zope(a)zope.org > > http://www.zope.org/mailman/listinfo/zope > > > > (To receive general Zope announcements, see: > > http://www.zope.org/mailman/listinfo/zope-announce > > > > For developer-specific issues, zope-dev(a)zope.org - > > http://www.zope.org/mailman/listinfo/zope-dev ) > > > > > > === > -- > Bruce C. Dillahunty > Peachbush Enterprises > > _________________________________________________________ > Do You Yahoo!? > Get your free @yahoo.com address at http://mail.yahoo.com > -- Bruce C. Dillahunty Peachbush Enterprises bdillahu(a)mindspring.com

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RE: [Zope] nested logic in DTML
by Nick Garcia 28 Jul '99

28 Jul '99

At 06:11 PM 7/28/99 -0400, Jeffrey Shell wrote: >I've found the return tag very nice for when I had situations (similar >to what you described) of having heaps of logic before any content, >usually on something that happens after submitting a form. If you had a >DTML Document/Method like the following: > > >  >  >  >  >  >  > > > <h1 align="center" style="color:red;">Boo!</h1> > > >It may very likely (when rendered) leave one or more blank lines at the >top, which Zope will try (unsuccesfully) to parse for HTTP Headers. >Now, instead of #var index_html, I can have #return index_html and (thus >far) it seems to do the right thing. Hmmm... interesting. I haven't really worked with Zope2 very much, but in 1.10.x, my solution to this problem was always to do it this way:          <h1 align="center" style="color:red;">Boo!</h1>   This way, Zope gets the headers first and doesn't complain, the logic still runs the same, and everything comes out hunky-dory. Of course this wouldn't help if DoSomething actually needed to set an environment variable that goes in the header.... And index_html can't have any header or footer information, but I've usually been able to work around that. Nick Garcia | ngarcia(a)codeit.com CodeIt Computing | http://codeit.com

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RE: [Zope] nested logic in DTML
by Jeffrey Shell 28 Jul '99

28 Jul '99

> I'd like to add another fairly long conditional right before the > update line, but it makes things quite unwieldy. What I'd really like > would be a DTML Document like object that can return a value. I could > stick the long conditional in that object. Then I could reference the > object in several different places and just check the return value. > > I realize that this is stretching DTML beyond it's presentation-only > design, but I do think that going all of the way to an > external python > method for this seems a bit much. (a) Use DTML Methods if you're planning on returning a value, that way the concept of methods stays solid, and (b) In the Zope 2 Beta there is the new "return" tag. It was submitted by someone on this list. I've started using it a little bit myself, but I haven't used it to return non-dtml-documents. This is probably what you're looking for. I've found the return tag very nice for when I had situations (similar to what you described) of having heaps of logic before any content, usually on something that happens after submitting a form. If you had a DTML Document/Method like the following:          <h1 align="center" style="color:red;">Boo!</h1>  It may very likely (when rendered) leave one or more blank lines at the top, which Zope will try (unsuccesfully) to parse for HTTP Headers. Now, instead of #var index_html, I can have #return index_html and (thus far) it seems to do the right thing.

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RealServer Question.
by Mike Winter 28 Jul '99

28 Jul '99

Hi, this is a probably a newbie question, but I was wondering if someone could help me out just the same. I would like to use RealServer to serve Real content, but use Zope to handle all of the authentication and authorization. Does anyone know a way to do this? That is, I would like to put a RealMedia object in a Zope folder, but have a different server actually handle the serving. I was thinking that a rewrite rule might be appropiate, but that seems to leave the RealMedia content unprotected. Thanks in advance. -- Mike Winter | mfw127(a)mail.usask.ca U. of S: 966-4759 TR Labs: 668-9323

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DA Status
by Christopher Petrilli 28 Jul '99

28 Jul '99

Gang, I've started to put up a list of status for all the DA's on the web site: http://www.zope.org/Download/DAStatus Please look over this and let me know if you have anything to change. I will be adding information about contributed DAs as it is collected/contributed. One thing I would like to make clear about all DC-supported DAs... they will all be at least Level 2 by the official release of Zope 2.0. In addition, if you wish to beat a DA into L2 immediately, all you need to do is: * Mix in the Shared.DC.ZRDB.THUNK.THUNKED_TM instead of normal one * Call self._register before you do a query * And implement self._begin, self._finish, self._abort This gets you L2 + integration with transaction support. This list will expand and grow over the next couple of days. Chris

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nested logic in DTML
by Chad McDaniel 28 Jul '99

28 Jul '99

I'm just getting to the point where I want to use DTML for fairly deeply-nested logical structures. Basically I have something like this: ---                --- I'd like to add another fairly long conditional right before the update line, but it makes things quite unwieldy. What I'd really like would be a DTML Document like object that can return a value. I could stick the long conditional in that object. Then I could reference the object in several different places and just check the return value. I realize that this is stretching DTML beyond it's presentation-only design, but I do think that going all of the way to an external python method for this seems a bit much. Any suggestions? thanks -- -chad

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Training material online
by Christopher Petrilli 28 Jul '99

28 Jul '99

Thanks to the wonders of modern technology, and a kick in the kiester, the training materials that we've run a few times have been HTMLified and put up on the Digicool site. You can find them here: http://www.digicool.com/Solutions/Training/Material/ Good luck, and please direct feedback to myself rather than the list. Chris -- | Christopher Petrilli Python Powered Digital Creations, Inc. | petrilli(a)digicool.com http://www.digicool.com

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