php - cakePHP afterFind() Warning (2) -

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i have problem in application problem in afterfind() function, here's code:

public function afterfind($results, $primary = false){     app::uses('cakesession', 'model/datasource');     $deplacement_id = cakesession::read('id-deplacement');      foreach($results $k=>$valeur){         $results[$k][$this->alias]['checked']='false';         foreach($valeur['realisation'] $v=> $val){             if($val['deplacement_id'] == $deplacement_id){                 $results[$k][$this->alias]['checked'] = 'true';             }         }     }     return $results; }

the code works fine if test $results variable debug() in model shows me want have problem comes view error:

warning (2): invalid argument supplied foreach() [app\model\pointerne.php, line 46]  notice (8): undefined index: realisation [app\model\pointerne.php, line 46]

i deleted error if may debug() in core file 0 can not use debug function for testing variable.

thank help


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