[Zope] [Fwd: My problem or tree tag bug?]

[Chris Withers]

Dieter Maurer wrote:
> The message seemed to be sent only to me.

whoops... Reply/Reply All user error bug ;-)

cheers,

Chris

> 
> Chris Withers writes:
>  > Dieter Maurer wrote:
>  > >  >     (Info: ([None, (['966520543', []],)], ['966520928', '966520893',
>  > >                       <--    state      ->
>  > >  > '966520543']))
>  > > Somehow, your state became a tuple. It should be a list.
>  >
>  > Is there anything in postingValues that could cause this? I'm trying to
>  > decide whether it's something my code is doing wrong or whether it's a
>  > bug in dtml-tree..
> I think, I found a bug in "TreeTag".
> If your "branches" method produces an empty tree,
> then the state is generated as a tuple and not as a list.
> However, it does not look as in your example.
> 
> The code is near line 249:
>         state= state or ([id],)
> 
> If you change this to a list, this may help (though chances are
> not too great).
> 
>  > > After looking at the code, I fear, your many trees on one
>  > > page will not work, unless they have the "single" argument.
>  >
>  > What's the 'single' argument?
> I tells the tree to have at most one branch unfolded.
> If you klick at one branch, any other open branch
> is coalesced.
> This tree mode does not require a cookie.
> 
>  > ... Tree Tag rewrite ....
>  > What do people think?
> 
> I think:
> 
>   *  rewriting the tree tag would be a good idea.
> 
>   *  I would complain, if the DTML features would be
>      restricted.
> 
>      I would like to have structured variable
>      names, e.g. "x/y/z". It will, however,
>      lead to more problems with URL references
>      in text included in this way.
>      These problems exist today, but people that
>      understand the nested with are more likely
>      able to understand the URL problems then
>      those that use "x/y/z".
> 
>      I like your proposal to have a calling feature
>      direct in DTML without the need to go via
>      "expr" (and therefore Python).
> 
> Dieter