can't delete posts and can't add a post without an image

I am learning CakePHP by trying to create a note application. However, I have two annoying bugs which stops me from going further.

1. I added an option to upload a picture to my notes. The uploader works just fine however if I don't upload a picture, CakePHP tells me the post has been added successfully though I don't see my new note, neither on the site or database. The code for the ADD view is: 
   <!-- File: /app/views/notes/add.ctp -->
   <h2>Add Note</h2>
   <hr />
   <?php
   echo $form->create('Note',array('type'=>'file'));
   echo $form->input('title', array( 'label' => 'Enter Title:' ));
   echo $form->input('body', array( 'label' => 'Enter your note:' ), array('rows' => '10'));
   echo $form->input('file',array('type' => 'file'), array( 'label' => 'Attach a file:' ));
   echo $form->input('id', array('type'=>'hidden'));
   echo '<hr />';
   echo $form->end('Save Note');
   ?>
   
   
   
2. Second, I can't delete any post though, again, it tells me is has been deleted successfully but the post still remains. Below the code for the controller:

<!-- File: /app/controllers/notes_controller.php -->

<?php

class NotesController extends AppController {

var $name = 'Notes';

var $components = array('Auth', 'Session');

    var $paginate = array(

        'limit' => 3,

        'order' => array('Note.modified' => 'desc')

    );

function index() {

$condition = array('user_id'=>$this->Auth->user('id'));

$this->set('notes', $this->paginate('Note', $condition));

$this->helpers['Paginator'] = array('ajax' => 'Ajax');

//$this->set('notes', $this->Note->find('all'));

//$this->Note->recursive = 0;

}

function note($id = null) {

$this->Note->id = $id;        

$this->set('note', $this->Note->read());   

}

function add() {

$this->layout = 'page';

if (!empty($this->data)) {

$this->data['Note']['user_id'] = $this->Auth->user('id');

if ($this->Note->save($this->data['Note']) == true) {

$this->Session->setFlash('The note has been saved', 'flash_success');

$this->redirect(array('action' => 'index'));

} else {

$this->Session->setFlash('Oops! The note could not be saved. Please, try again.', 'flash_error');

}

}

}

 

function delete($id) {

$this->Note->delete($id);

$this->Session->setFlash('The note with id: '.$id.' has been deleted.', 'flash_success');

$this->redirect(array('action'=>'index'));

}

function edit($id = null) {

$this->Note->id = $id;

if (empty($this->data)) {

$this->data = $this->Note->read();

} else {

if ($this->Note->save($this->data)) {

$this->Session->setFlash('Your note has been updated.', 'flash_success');

$this->redirect(array('action' => 'index'));

}

}

}

}

?>

And last, the notes view:

<!-- File: /app/views/notes/index.ctp -->

<?php echo $html->link('Add Post',array('controller' => 'notes', 'action' => 'add'), array('class' => 'add'))?>

<ul id="myNotes">

<?php foreach ($notes as $note): ?>

<li>

<div class="thb">

<?php 

//Build the img url

$base_url = $this->base;

$imgUrl = $base_url . '/app/webroot/media/' . $note['Note']['dirname'] . '/' . $note['Note']['basename'];

//display the thumb

if(!empty ($note['Note']['file'])) {

echo '<img class="thb" src="' . $imgUrl . '" alt="' . $note['Note']['title'] .'" />'; 

}

?>

</div>

<h2><?php echo $html->link($text->truncate($note['Note']['title'], 40), array('controller' => 'notes', 'action' => 'note', $note['Note']['id'])); ?>

<span><?php echo $time->relativeTime($note['Note']['modified']); ?></span></h2>

<?php /* Edit/Delete Button */ echo $html->link('Edit', array('action'=>'edit', $note['Note']['id'])) . ' | ' . $html->link('Delete', array('action' => 'delete', $note['Note']['id']), null, 'Are you sure?' ); ?>

<p>

<?php 

$note = $note['Note']['body'];

$noteUrls = $text->autoLink($note);

echo  $text->truncate($note, 120);

?>

</p>

</li> 

<?php endforeach; ?>

</ul>

<!-- Shows the page numbers -->

<?php echo $paginator->prev('« Previous', null, null, array('class' => 'disabled')); ?>

<?php echo $paginator->numbers(); ?>

<?php echo $paginator->counter(); ?>

<?php echo $paginator->next('Next »', null, null, array('class' => 'disabled')); ?>

Does anyone know what the problem  is  here? Thanks in advance.

Jeremie

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