CakePHP containable how to do a recursion with join? -

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i want retrieve tree nodes recursively , want join each [node] [level]
node:

 ... public $belongsto = array(     'parent' => array(         'classname' => 'node',         'foreignkey' => 'parent_id'     ),     'level' => array(         'classname' => 'level',         'foreignkey' => 'level_id'     ) );  ...

controller: 

$this->node->contain(array(         'parent.parent.parent.parent.parent',     )); $parenttree = $this->node->findallbyid($id);

the recursion works want each node have level element , it's not case.
how correct contain parameter?
levels recursive in case want restrict recursion - need first one


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