Codeigniter購物車刷新後頁面才更新

Question

我正在使用CI 2.1.3購物車項目。這就是添加到購物車的工作原理：調用add_to_cart函數將項目插入購物車，然後重定向到view_cart頁面。但購物車並未立即更新。它只在頁面重新加載時更新。爲什麼？

public function add_to_cart($product_id){ 
     if (isset($product_id)){ 
      $product = $this->_product_model->get_record_by_id((int)$product_id); 
      if (!is_null($product)){ 
       if (count($this->cart->contents())>0){ 
        foreach ($this->cart->contents() as $item){ 
         if ($item['id']==$product->id){ 
          $data = array('rowid'=>$item['rowid'],'qty'=>++$item['qty']); 
          $this->cart->update($data); 
         }else{ 
          $data = array('id'=>$product->id,'qty'=>1,'price'=>$product->price,'name'=>$product->id,'options'=>array('image'=>$product->thumb,'product_name'=>$product->title)); 
          $this->cart->insert($data); 
         } 
        } 
       }else{ 
        $data = array('id'=>$product->id,'qty'=>1,'price'=>$product->price,'name'=>$product->id,'options'=>array('image'=>$product->thumb,'product_name'=>$product->title)); 
        $this->cart->insert($data); 
       } 
       //$this->layout->load('cart/view_cart', $this->data); 
       redirect(base_url('view_cart.html'),'location'); 
      } 
     }else{ 
      $this->layout->load('/product/product_not_found', $this->data); 
     } 
    } 

Answer 1

試試這個：

redirect(base_url('view_cart.html'),'refresh');