Question

我在通过AJAX“get”方法发送给控制器的数据方面遇到了一些问题。

我的AJAX代码（在.tpl文件中），它从列表中选择信息

<script>
     $('#category').on('change', function() {
            $.ajax({
                method: 'GET',
                url: 'index.php?route=module/my_module&category_id='+this.value,

            }).done(function(data, Status){

            });
      });
</script>

我在Ghrome Web工具上检查过，它可以工作，我看到了请求。我在Controller中的代码：

 $this->load->model('catalog/product');
        $category_id = $this->request->get['category_id'];
        $this->data['product'] = $this->model_catalog_product->getProductsByCategoryId($category_id);

        $this->response->setOutput();

在AJAX请求之后，我无法在.tpl中看到变量$ product。有什么问题？我试图在控制器中创建一个特殊功能，但它不起作用。

UPD： 新的AJAX功能：

 $('#category').on('change', function() {
        $.ajax({
      url: 'index.php?route=module/my_module/AjaxGetProduct&category_id=' + this.value,
      dataType: 'html',
      success: function(htmlText) {
        alert(htmlText);
        $('#product_summary').html(htmlText);
      },
      error: function(xhr, ajaxOptions, thrownError) {
        alert(thrownError + "\r\n" + xhr.statusText + "\r\n" + xhr.responseText);
      }
    });
  });

型号代码为：

public function getProductsByCategoryId($category_id) {
        $query = $this->db->query("SELECT * FROM " . DB_PREFIX . "product p LEFT JOIN " . DB_PREFIX . "product_description pd ON (p.product_id = pd.product_id) LEFT JOIN " . DB_PREFIX . "product_to_category p2c ON (p.product_id = p2c.product_id) WHERE pd.language_id = '" . (int)$this->config->get('config_language_id') . "' AND p2c.category_id = '" . (int)$category_id . "' ORDER BY pd.name ASC");

        return $query->rows;
    } 

    public function getProductDescriptions($product_id) {
        $product_description_data = array();

        $query = $this->db->query("SELECT * FROM " . DB_PREFIX . "product_description WHERE product_id = '" . (int)$product_id . "'");

        foreach ($query->rows as $result) {
            $product_description_data[$result['language_id']] = array(
                'seo_title'        => $result['seo_title'],
                'seo_h1'           => $result['seo_h1'],
                'name'             => $result['name'],
                'description'      => $result['description'],
                'meta_keyword'     => $result['meta_keyword'],
                'meta_description' => $result['meta_description'],
                'tag'              => $result['tag']
            );
        }

        return $product_description_data;
    }

我在Controller中更新了AJAX请求的功能：

public function AjaxGetProduct(){
        if (isset($this->request->get['category_id'])) {
          $category_id = $this->request->get['category_id'];

          if ($category_id > 0) {
            //loading the AJAX
                $this->template = 'module/my_module.tpl';
                $this->load->model('catalog/product');
                $product = $this->model_catalog_product->getProduct($category_id);
                $data['product'] = $product;
                $this->response->setOutput($this->render());


          }
          else {
              echo "Error";          }
        } else {
            echo "Error";
        }
    }

当我尝试在AJAX成功案例中提醒htmlText答案的值时，我会在弹出窗口中看到所有模板代码：

Answer 1

看起来像OC 1.5并且将结果作为json而不是通过模板传递，删除$this->template = 'module/my_module.tpl'并更改

$data['product'] = $product;
$this->response->setOutput($this->render());

到

$this->response->setOutput(json_encode($product));

Opencart中的AJAX问题

1 个答案: