Nie mogę edytować rekordów

<?php
class Product extends AppModel {

    var $name = 'Product';
    var $validate = array(
        'name' => array('notempty'),
        
        'status' => array('numeric'),
        
    );
    
    var $order = array('Product.name ASC');
    
    var $actsAs = array('Sluggable'=>array('label'=>'name','separator'=>'-','translation'=>'utf-8'),'Translate'=>array('name','description'));
    //The Associations below have been created with all possible keys, those that are not needed can be removed
    var $hasMany = array(
        'Ad' => array(
            'className' => 'Ad',
            'foreignKey' => 'product_id',
            'dependent' => false,
            'conditions' => '',
            'fields' => '',
            'order' => '',
            'limit' => '',
            'offset' => '',
            'exclusive' => '',
            'finderQuery' => '',
            'counterQuery' => ''
        ),
        'Fact' => array(
            'className' => 'Fact',
            'foreignKey' => 'product_id',
            'dependent' => false,
            'conditions' => '',
            'fields' => '',
            'order' => '',
            'limit' => '',
            'offset' => '',
            'exclusive' => '',
            'finderQuery' => '',
            'counterQuery' => ''
        ),
        'Question' => array(
            'className' => 'Question',
            'foreignKey' => 'product_id',
            'dependent' => false,
            'conditions' => '',
            'fields' => '',
            'order' => '',
            'limit' => '',
            'offset' => '',
            'exclusive' => '',
            'finderQuery' => '',
            'counterQuery' => ''
        ),
        'Science' => array(
            'className' => 'Science',
            'foreignKey' => 'product_id',
            'dependent' => false,
            'conditions' => '',
            'fields' => '',
            'order' => '',
            'limit' => '',
            'offset' => '',
            'exclusive' => '',
            'finderQuery' => '',
            'counterQuery' => ''
        ),
        'Testimonial' => array(
            'className' => 'Testimonial',
            'foreignKey' => 'product_id',
            'dependent' => false,
            'conditions' => '',
            'fields' => '',
            'order' => '',
            'limit' => '',
            'offset' => '',
            'exclusive' => '',
            'finderQuery' => '',
            'counterQuery' => ''
        )
    );

    var $hasAndBelongsToMany = array(
        'Category' => array(
            'className' => 'Category',
            'joinTable' => 'categories_products',
            'foreignKey' => 'product_id',
            'associationForeignKey' => 'category_id',
            'unique' => true,
            'conditions' => '',
            'fields' => '',
            'order' => '',
            'limit' => '',
            'offset' => '',
            'finderQuery' => '',
            'deleteQuery' => '',
            'insertQuery' => ''
        ),
        'Clip' => array(
            'className' => 'Clip',
            'joinTable' => 'clips_products',
            'foreignKey' => 'product_id',
            'associationForeignKey' => 'clip_id',
            'unique' => true,
            'conditions' => '',
            'fields' => '',
            'order' => '',
            'limit' => '',
            'offset' => '',
            'finderQuery' => '',
            'deleteQuery' => '',
            'insertQuery' => ''
        )
    );

}
?>

<?php
class ProductsController extends AppController {

    var $name = 'Products';
    var $helpers = array('Html', 'Form');
    
    function index() {
        $this->Product->recursive = 0;
        $this->set('products', $this->paginate());
    }

    function view($id = null) {
        if (!$id) {
            $this->Session->setFlash(__('Invalid Product.', true));
            $this->redirect(array('action'=>'index'));
        }
        $this->set('product', $this->Product->read(null, $id));
    }    

    function admin_index() {
        $this->Product->recursive = 0;
        $this->set('products', $this->paginate());
    }

    function admin_view($id = null) {
        if (!$id) {
            $this->Session->setFlash(__('Invalid Product.', true));
            $this->redirect(array('action'=>'index'));
        }
        $this->set('product', $this->Product->read(null, $id));
    }

    function admin_add() {
        if (!empty($this->data)) {
            $this->Product->create();
            if ($this->Product->save($this->data)) {
                $this->Session->setFlash(__('The Product has been saved', true));
                $this->redirect(array('action'=>'index'));
            } else {
                $this->Session->setFlash(__('The Product could not be saved. Please, try again.', true));
            }
        }
        $clips = $this->Product->Clip->find('list');
        $this->set(compact('clips'));
    }

    function admin_edit($id = null) {
        if (!$id && empty($this->data)) {
            $this->Session->setFlash(__('Invalid Product', true));
            $this->redirect(array('action'=>'index'));
        }
        if (!empty($this->data)) {
            if ($this->Product->saveAll($this->data)) {
                $this->Session->setFlash(__('The Product has been saved', true));
                $this->redirect(array('action'=>'index'));
            } else {
                $this->Session->setFlash(__('The Product could not be saved. Please, try again.', true));
            }
        }
        if (empty($this->data)) {
            $this->data = $this->Product->read(null, $id);
        }
        $clips = $this->Product->Clip->find('list');
        $this->set(compact('clips'));
    }

    function admin_delete($id = null) {
        if (!$id) {
            $this->Session->setFlash(__('Invalid id for Product', true));
            $this->redirect(array('action'=>'index'));
        }
        if ($this->Product->del($id)) {
            $this->Session->setFlash(__('Product deleted', true));
            $this->redirect(array('action'=>'index'));
        }
    }

}
?>

<div class="products form">
<?php echo $form->create('Product');?>
    <fieldset>
         <legend><?php __('Edit Product');?></legend>
    <?php
        echo $form->input('name');
        echo $form->input('description');
        echo $form->input('images');
        echo $form->input('flash');
        echo $form->input('status');
        echo $form->input('slug');
        echo $form->input('date');
        echo $form->input('Clip');
        echo $form->input('Category');
    ?>
    </fieldset>
<?php echo $form->end('Submit');?>
</div>
<div class="actions">
    <ul>
        <li><?php echo $html->link(__('Delete', true), array('action' => 'delete', $form->value('Product.id')), null, sprintf(__('Are you sure you want to delete # %s?', true), $form->value('Product.id'))); ?></li>
        <li><?php echo $html->link(__('List Products', true), array('action' => 'index'));?></li>
    </ul>
</div>