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On Nov 9, 1:51 pm, "[EMAIL PROTECTED]"
<[EMAIL PROTECTED]> wrote:
> The Acl manual explains it all. You should never really need to be
> editing these values directly, just use the console and/or Acl
> component, which will take care of all the Tree values for you.
>
> Alternatively, learn how MPTT works, and spend a lot of time doing it
> all yourself.
>
> On Nov 9, 8:18 pm, Steveston <[EMAIL PROTECTED]> wrote:
>
> > If lft & right values are required, I am very surprised to see that
> > there is no any explanation on manual about it.
>
> > On Nov 9, 11:07 am, "[EMAIL PROTECTED]"
>
> > <[EMAIL PROTECTED]> wrote:
> > > Very much not.
>
> > > The lft and rght values are an inherent part of the tree structure
> > > (it's a Modified Pre-Order Traversal Tree if you're interested).
> > > Without them, there is no tree structure.
>
> > > The Acl system can be used to repair a damaged tree based on the
> > > parent_id fields, but without the full left and right stuff, it just
> > > won't be able to do aco or aro lookups, which is pretty fundamental.
>
> > > I would recommend using the Acl behavior, which implies the Tree
> > > behavior too, as a means of editing these values and having the MPTT
> > > stuff handled for you.
>
> > > For a clearer explanation see google on MPTT (or the forthcoming cake
> > > 1.2 manual... when I get round to it - sorry John!)
>
> > > Simon
>
> > > On Nov 9, 6:42 pm, Steveston <[EMAIL PROTECTED]> wrote:
>
> > > > Default values for lft & right codes in aco & aro are NULL.
>
> > > > If I do not provide lft & right value (just use default NULL), will
> > > > ACL still work correctly?
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