updatingrelation hasmany with listbox

hi every body,

i have a table 'Secteur' wich 'hasMany' 'metier',( and metier belongs
to one secteur) the problem is when i want to update 'metier', i
need to list

the id of the 'secteur' but i cant do it,

i tried to list the 'secteur' table from my controller but i cant put
it in a selectBox, the second problem is in updating, the submit
button take me to

the same action,

function edit_metier($id=null){

//$this->Metier->id = $id;

if (empty($this->data)) {
$this->data = $this->Metier->Secteur->read('',$id);

$secteurs=$this->Secteur->find('list');
$this->set('secteurs',$secteurs);
} else{
if ($this->Metier->save($this->data['Metier']))
{
$this->flash('update succeded ',array('controller'=> 'Admins',
'action'=>'gestion_metier'));
}else
$this->flash('updating impossible',array('controller'=>
'metiers', 'action'=>'edit_metier',$this->data['Metier']['id']));
}

}

for the view :

<?
echo $this->Form->create('Metier');

echo $this->Form->input('Secteur.id', array('id' => 'secteur'));//,
$secteurs, null, null, false

echo $this->Form->input('Metier.name');

echo $this->Form->input('Metier.id',array('type'=>'hidden'));

echo $this->Form->end('valider la modification');
?>

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