Cakephp update password - php

Question

I am trying to edit one of my members password (i have been allowed by the user).
Now for this function i have the following action:
if (!$this->User->exists($id)) {
throw new NotFoundException(__('Invalid USer'));
}
if ($this->request->is('post') || $this->request->is('put')) {
if ($this->User->save($this->request->data)) {
$this->Session->setFlash(__('The User has been saved'));
$this->redirect(array('action' => 'index'));
} else {
$this->Session->setFlash(__('The User could not be saved. Please, try again.'));
}
} else {
}
}
However when i try to save i get the following error:
2013-10-21 11:53:53 Error: [PDOException] SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry 'MarcEmp' for key 'username'
So it tries to insert a new entry.
Does anyone know what i am doing wrong?

Answer 1

You are forgetting to set the current id to update, so Cake will try to create a new record by default. Try adding:
$this->User->id = $id;
Just before the save operation. So your entire function should look like:
/**
* Edit an existing user.
*
* #param int $id The user id to edit.
*/
public function edit($id) {
if (!$this->User->exists($id)) {
throw new NotFoundException(__('Invalid User'));
}
if ($this->request->is('post') || $this->request->is('put')) {
$this->User->id = $id; // <-- Add it here
if ($this->User->save($this->request->data)) {
$this->Session->setFlash(__('The User has been saved'));
$this->redirect(array('action' => 'index'));
} else {
$this->Session->setFlash(__('The User could not be saved. Please, try again.'));
}
}
}