if ($this->request->is(array('post', 'put'))) {
    $this->Note->id = $id;
    $this->request->data['Note']['user_id'] = $this->Session->read('uid');
    if ($this->Note->save($this->request->data)) {
                //Tag system
        $this->Tag->saveTags($this->request->data['Note']['tags'], $id, 'Note_Note');
        //

        $this->Session->setFlash(__d('Note', 'Your note has been updated.'));
        return $this->redirect(array('action' => 'index'));
    }
    $this->Session->setFlash(__d('Note', 'Unable to update your note.'));
}
//Tag system
$tags = $this->Tag->getContentTags($id, 'Note_Note');
$this->set('tags', $tags);
//