[PHP] A bug with RecursiveIteratorIterator?

2005-08-08 Thread Chris 
I'm trying to extend the RecursiveIteratorIterator class, to limit which 
children it recurses through.


The documentation here:

http://www.php.net/~helly/php/ext/spl/classRecursiveIteratorIterator.html

says that there is a ahapublic method callHasChildren(), which I figured 
was a good place to start. It seemed like it made sense, except for the 
fact that that callHasChildren() does not exist. Overloading the 
function does nothing, and instantiating my extended object, then 
manually calling callHasChildren() results in a method not found error.


Call to undefined method RecursiveIteratorIterator::callhaschildren()

I'm including my complete extension class below

Thanks,
Chris

class CPage_TreeMenuIterator extends RecursiveIteratorIterator
{
function __construct(CPage_Node $it)
{
parent::__construct($it,RIT_SELF_FIRST);
}
function callHasChildren()
{
echo CPage_TreeMenuIterator::callHasChildren();br /\n;
return parent::callHasChildren();
}
}

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Re: [PHP] A bug with RecursiveIteratorIterator?

2005-08-08 Thread Chris 
In further looking at the SPL classes, I'm thinking I want to use the 
RecursiveFilterIterator class to filter my nodes.


But I ran into another problem: the class RecursiveFilterIterator does 
not exist.


Am I missing something here?

Confused,
Chris

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Re: [PHP] A bug with RecursiveIteratorIterator?

2005-08-08 Thread Jochem Maas 

Chris wrote:
In further looking at the SPL classes, I'm thinking I want to use the 
RecursiveFilterIterator class to filter my nodes.


But I ran into another problem: the class RecursiveFilterIterator does 
not exist.


Am I missing something here?


your out on the bleeding edge so to speak - not many people have played with
this stuff yet - alot will depend on the php build your using - best bet is to 
try the
latest RC of 5.1 and see what that has in it  I have a felling you will
have to make a bit of use of the following funcs (and maybe even the reflection 
API)
to figure out _exactly_ what is available in your build:

http://php.net/manual/en/function.get-declared-classes.php
http://php.net/manual/en/function.get-declared-interfaces.php
http://php.net/manual/en/function.get-class-methods.php



Confused,
Chris



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Re: [PHP] A bug with RecursiveIteratorIterator?

2005-08-08 Thread Chris 

Jochem Maas wrote:


Chris wrote:

In further looking at the SPL classes, I'm thinking I want to use the 
RecursiveFilterIterator class to filter my nodes.


But I ran into another problem: the class RecursiveFilterIterator 
does not exist.


Am I missing something here?



your out on the bleeding edge so to speak - not many people have 
played with
this stuff yet - alot will depend on the php build your using - best 
bet is to try the
latest RC of 5.1 and see what that has in it  I have a felling you 
will
have to make a bit of use of the following funcs (and maybe even the 
reflection API)

to figure out _exactly_ what is available in your build:

http://php.net/manual/en/function.get-declared-classes.php
http://php.net/manual/en/function.get-declared-interfaces.php
http://php.net/manual/en/function.get-class-methods.php


Thanks for the response. I'm really in love with most of the SPL stuff, 
it's most unfortunate that some parts aren't ready yet. Upgrading would 
be OK for my test server, but I was hoping to put this code on a PHP 
5.0.3 server (upgrading there is an option, but a very undesirable one).


I'll look into precisely what is working on my 5.0.3 development server 
at the moment. Any ideas if this functionality is likely to change? 
Right now I'm specifically looking the Iterator and RecursiveIterator stuff.





I'll explain my precise situation in more detail in the hopes that 
someone can make some suggestions or point out another way I might be 
able to do this without filtering the RecursiveIterator.


I'm essentially storing the navigation of a Website in an object tree. 
The root node (Home) has children, each of those has children, etc. My 
tree definition file (an include that uses method calls to the CPage 
object) creates the tree, and assigns different target areas for the 
navigation to appear in.


So one CPage_Node might reside in the Top target, but send it's children 
to the Left target. and One of those children might Send *it's* children 
to the Tab target, while the rest jsut send theirs to the Left target.


So, for each target that is a Tree (displays a tree structure) I 
Recursively Iterate the Full page tree, starting at the Root Node point, 
but I have to stop displaying children that are being shown in another 
target.


I can get it to work with the follwing code (using the 
RecursiveIterator, but not the RecursiveFilterIterator)


$iTarget = $oPage-GetMenu(CPAGE_TARGET_LEFT)-GetTarget();
foreach($oPage-GetMenu(CPAGE_TARGET_LEFT)-GetRecursiveNodes() as $oNode)
{
   if($oNode-GetTarget() != $iTarget) continue;
// Display the node here
   echo str_repeat('  ',$oNode-GetLevel()),$oNode-GetName(),\n;
}


Thanks,
Chris

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