[Zope3-dev] Zope's PathIndex 'level' argument

[Jeffrey P Shell]

There's still no 'depth' argument for Zope 2's PathIndexes, is there?  
If not, there should be - almost all other tree based query languages 
have the concept of depth (depth 0 - only the object itself (primarily 
used to get individual objects in LDAP); depth 1 - the object and its 
immediate children ONLY; depth infinite - the object and all levels 
beneath it).

I've looked into doing this a couple of times, but I don't think I ever 
ventured far.

On Monday, November 25, 2002, at 12:27  PM, Steve Alexander wrote:

> I'm implementing the functionality of a PathIndex for Zope 3.
>
> In Zope 2, when querying a PathIndex, you can give it an optional 
> 'level' argument in addition to the base-path that you're interested 
> in.
>
> Does anyone use this 'level' argument? What are its use-cases?
>
> The level is 0 by default. There's a comment in the code saying that a 
> negative level doesn't work yet, but there appears to be code that 
> implements that case.
>
> If anyone does have a use for the 'level' argument, is there a 
> use-case for supporting negative levels.
>
> (I'm deliberately not describing what 'level' does here.)
>
> --
> Steve Alexander
>
>
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