opencart編輯download.php得到錯誤

我無法真正找到我的問題的直接答案，我無法弄清楚爲什麼一個錯誤將被拋回，當我幾乎99％肯定我已經正確添加了一切。也許一個新的眼睛可以幫助。opencart編輯download.php得到錯誤

問：

我想要一個新列添加到顯示所有已添加了下載的表格，但我得到這個錯誤，無法找出原因。我正在嘗試查看下載是否已附加到產品。

錯誤：

Fatal error: Call to undefined function isUsed() in /customers/b/4/a/athomestudios.net/httpd.www/admin/controller/catalog/download.php on line 178

控制器/目錄/的download.php：

foreach ($results as $result) { 
     $data['downloads'][] = array(
      'download_id' => $result['download_id'], 
      'name'  => $result['name'], 
      'used'  => isUsed($result['download_id']), 
      'date_added' => date($this->language->get('date_format_short'), strtotime($result['date_added'])), 
      'edit'  => $this->url->link('catalog/download/edit', 'token=' . $this->session->data['token'] . '&download_id=' . $result['download_id'] . $url, 'SSL') 
     ); 
    }

模型/目錄/的download.php：

public function isUsed($download_id) { 
    $query = $this->db->query("SELECT COUNT(*) as `total` FROM " . DB_PREFIX . "product_to_download WHERE download_id = '" . (int)$download_id . "'"); 

    return $query->row['total']; 
}

視圖/模板/目錄/ download_list.php：

<?php foreach ($downloads as $download) { ?> 
      <tr> 
       <td class="text-center"><?php if (in_array($download['download_id'], $selected)) { ?> 
       <input type="checkbox" name="selected[]" value="<?php echo $download['download_id']; ?>" checked="checked" /> 
       <?php } else { ?> 
       <input type="checkbox" name="selected[]" value="<?php echo $download['download_id']; ?>" /> 
       <?php } ?></td> 
       <td class="text-left"><?php echo $download['name']; ?></td> 
       <td class="text-center"> 
        <?php 
        if ($download['used'] == 0) { 
         echo 'No'; 
        }else{ 
         echo 'Yes'; 
        } 
        ?> 
       </td> 
       <td class="text-right"><?php echo $download['date_added']; ?></td> 
       <td class="text-right"><a href="<?php echo $download['edit']; ?>" data-toggle="tooltip" title="<?php echo $button_edit; ?>" class="btn btn-primary"><i class="fa fa-pencil"></i></a></td> 
      </tr> 
      <?php } ?>

來源

2016-02-23 rackemup420

可能是變量範圍問題。嘗試將db連接傳遞給函數。 –

我如何將db連接添加到它？ – rackemup420

ahhh你是對的我的朋友!!!我添加了'$ this-> model_catalog_download->'到它的前面，它工作。 – rackemup420

作爲@Fred -ii-所述添加分貝連接字符串。

foreach ($results as $result) { 
    $data['downloads'][] = array(
     'download_id' => $result['download_id'], 
     'name'  => $result['name'], 
     'used'  => $this->model_catalog_download->isUsed($result['download_id']), 
     'date_added' => date($this->language->get('date_format_short'), strtotime($result['date_added'])), 
     'edit'  => $this->url->link('catalog/download/edit', 'token=' . $this->session->data['token'] . '&download_id=' . $result['download_id'] . $url, 'SSL') 
    ); 
}

來源

2016-02-23 15:22:32 rackemup420

總是喜歡快樂的結局;-) –

opencart編輯download.php得到錯誤

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