[Zope] Using the Tree Widget

[Jonathan]

----- Original Message ----- 
From: "David VanKirk" <kriknav at gmail.com>
To: "Jonathan" <dev101 at magma.ca>
Cc: <zope at zope.org>
Sent: Saturday, August 05, 2006 7:36 AM
Subject: Re: [Zope] Using the Tree Widget


> Yea I saw that and started working or writing my own function, but
> there are some other things that didn't work for me.  I guess I don't
> know how the widget calls that function.
>
> Does it call that function once, or does it call it for each node?
> Does the widget pass some info to the function (or can it be done) so
> that the function knows what node the widget wants children for?  Does
> the widget expect a certain type of object list to be returned from
> the function?  How would I format the returned object to be displayed
> if it's not in the standar Zope Object format?

All I can suggest is: (i) create small test routines to check out features 
one-at-a-time, and (ii) look at the source code.

It may be easier/simpler just to build your own tree-generation routine for 
the db/data you are using (this is what I have done in the past, it is not a 
difficult task and it gives you complete control over the content and 
display of the tree).


Jonathan



>
> On 8/4/06, Jonathan <dev101 at magma.ca> wrote:
>>
>> ----- Original Message -----
>> From: "David VanKirk" <kriknav at gmail.com>
>> To: "Jonathan" <dev101 at magma.ca>
>> Sent: Friday, August 04, 2006 6:23 PM
>> Subject: Re: [Zope] Using the Tree Widget
>>
>>
>> > Unfortunately, I've already read over all of that.  It does tell about
>> > all the features of the widget, but it doesn't seem to give me that
>> > connection to make this widget useful, aside from listing objects in
>> > Zope.
>>
>> I had a quick look at the dtml tree doc (i have never used it, so am just
>> going on what i read), but it seems that you can specify methods that are
>> called in order to obtain branch elements and there is an attribute 
>> 'expr'
>> which allows you to provide an 'expression' which provides the value to 
>> be
>> displayed, so it sounds as if you should be able to write your own 
>> routines
>> to pull the info out of your db.
>>
>>
>> Jonathan
>>
>> P.S.  pls keep your posts on the list (that way others can help too!)
>>
>> >
>> > Thanks though.
>> >
>> > On 8/4/06, Jonathan <dev101 at magma.ca> wrote:
>> >>
>> >> ----- Original Message -----
>> >> From: "David VanKirk" <kriknav at gmail.com>
>> >> To: "Zope Mailing List" <zope at zope.org>
>> >> Sent: Friday, August 04, 2006 4:53 PM
>> >> Subject: [Zope] Using the Tree Widget
>> >>
>> >>
>> >> > Is it possible to use the DTML tree widget to build a tree from
>> >> > non-Zope Object items?
>> >> >
>> >> > I'd like to be able to build a tree from information I have stored 
>> >> > in
>> >> > a database, unfortunately, the only information and examples I can
>> >> > find on the tree widget shows how to make a tree from Zope Objects.
>> >> >
>> >> > Does anyone have any experience in this area, or can you point me to
>> >> > some web site that may be able to help me?
>> >>
>> >> This may help:
>> >>
>> >> http://www.zope.org/Documentation/Guides/DTML-HTML/DTML.15.html
>> >>
>> >>
>> >>
>> >> Jonathan
>> >>
>> >
>> >
>> > --
>> > David VanKirk
>> >
>>
>>
>
>
> -- 
> David VanKirk
>