Duplicate entry with cakePhp - cakephp

Question

I am trying to apply data by adding _copy to the name and of course a new ID but I am not at all expert cakePHP and I do not know where to start. Here is my view:
I add the button "duplicate" with a route in the controller
<td>
<?php echo $this->Html->link(
'Dupliquer',
array(
'controller' => 'contracts',
'action' => 'duplicate',
$contract['Contract']['id']
),
array(
'class' => 'btn btn-default btn-sm'
)
); ?>
</td>
The function I call in my controller:
public function duplicate($id = null) {
if (!$id)
{
throw new NotFoundException(__('Identifiant invalide'));
}
$contract = $this->Contract->find('first', [
'conditions' => [
'Contract.id' => $id
]
]);
if (!$this->Contract->HasAny(['Contract.id' => $id])) {
throw new NotFoundException(__('Le contrat n\'a pas pu être trouvé'));
}
$data = [
'name' => $contract['Contract']['name']. '_copy',
];
return $this->redirect('edit');
}
In my function I retrieve the information to duplicate and it is here that I stuck at the level of the recording. Do you have an idea how to do it to make it clean?
Thank you.

Answer 1

Change:
$contract = $this->Contract->findById($id);
to:
$contract = $this->Contract->find()->where(['id' => $id])->first();
then:
$data = [
'name' => $contract->name. '_copy',
// other fields ...
];
$entity = $this->Contracts->newEntity($data);
$this->Contracts->save($entity);
// ...
// $this->redirect($this->referer());