how to delete records in cakephp - cakephp

Question

can anybody tell me how to delete records from the database?
I'm done with the rest part only deletion remains. I'm running the deletion command but
the data is not deleted from the database.Actuaaly i created an action in controller(delete_user) which contains the code for deleting the user from the database.
email value is stored in a session and i'm accessing it;s value using session read function
in the next controller.
function delete_user()
{
$email=$this->Session->read('User.email');
$this->User->delete($email, $cascade = true);
echo $this->Session->delete('User.email');
echo $this->Session->delete('User.username');
$this->redirect(array('action' => 'login'));
} );
i'm creating a link in home(View) page. and it is like this.
a href='/cakephp/cakephp/Users/delete_user'>Delete Profile</a>
i'm doing it right or wrong?

Answer 1

Please check the online documentation first before asking such a question.
Update 18/10/12
Try using CakePhp's magic find types:
$user = $this->User->findByEmail("bob#gmail.com");
$this->User->delete($user['User']['id']);

Answer 2

In your controller replace following code with delete action:
public function delete($id = null) {
if (!$this->request->is('post')) {
throw new MethodNotAllowedException();
}
$this->User->id = $id;
if (!$this->User->exists()) {
throw new NotFoundException(__('Invalid user'));
}
if ($this->User->delete()) {
$this->Session->setFlash(__('User deleted'));
$this->redirect(array('action' => 'index'));
}
$this->Session->setFlash(__('User was not deleted'));
$this->redirect(array('action' => 'index'));
}
and in ctp file add the following link:
<?php echo $this->Form->postLink(__('Delete'), array('action' => 'delete', ID OF THE RECORD, null, __('Are you sure you want to delete # %s?', ID OF THE RECORD)); ?>
then your problem will be solved...

Answer 3

you just need to pass the id as a first parameter:
$this->User->delete($id, $cascade);

Answer 4

with this you can delete it without cascade:
$this->Todo->delete($this->request->data('Todo.id'));
you can hook into this befor with
function beforeDelete(){
}
and here is my full delete action:
function delete($id = null){
$this->Todo->recursive = 1;
// new
$todo = $this->Todo->read(null,$id);
if($id == null || $todo == null) {
$this->Session->setFlash('Todo existiert nicht.');
$this->redirect(array('action' => 'index'));
return;
}
$this->set('todo',$todo);
$this->Todo->delete($this->request->data('Todo.id'));
$this->redirect(array('action' => 'index'));
return;
}