Question

我正在为Joomla 3.x构建一个组件，我遇到了处理ajax请求的问题。源代码可在Github上找到：JomCity

我的请求来自venues视图：/com_jomcity/site/views/venues/tmpl/default.php

<script type="text/javascript">
  jQuery(document).ready(function () {
    jQuery('#main_search_request').keyup(function() {
      var request_content = jQuery(this).val();
      jQuery.get(
        // Specify the server URL and the $_GET datas to send
        'index.php?option=com_jomcity&task=searchVenues&format=json',
        { search: request_content },
        // The server will respond with some data encoded in JSON
        function(data){
          jQuery('#results').html('');
          for (var i = 0; i < data.venues.length; i++) {
            var venue = data.venues[i];
            console.log(venue);
            jQuery('#results').append(
              '<div class="grid-item">' +
                '<a href="#">' +
                  '<img src="http://placekitten.com/g/80/80" alt="">' +
                  '<div>' +
                    '<div>' +
                      '<h3>'+venue.name+'</h3>' +
                      '<span>* * * * *</span>' +
                    '</div>' +
                    '<div>Short descrption</div>' +
                  '</div>' +
                '</a>' +
              '</div>'
            );
          }
        }
      );
    });
  });
</script>

此ajax脚本与组件的主控制器（站点部分）进行通信，因此我想知道如何从模型com_jomcity/site/models/venues.php获取值。

这段代码可以吗？或者我应该在视图的控制器中处理ajax请求（我没有找到该怎么做）？

Answer 1

感谢@Torreto和@GDP的参与。

我终于在主控制器中创建了一个直接与数据库交换的任务，因此不使用任何模型。我认为应该存在一种更好，更清晰的方式来编写这个ajax调用，所以我可以接受任何建议以进一步改进。

我使用的代码，如果它可以帮助某人：

在/com_jomcity/site/views/venues/tmpl/default.php：

<script type="text/javascript">
  jQuery(document).ready(function () {
    jQuery('#main_search_request').keyup(function() {
      var request_content = jQuery(this).val();
      jQuery.get(
        // Specify the server URL and the $_GET datas to send
        'index.php?option=com_jomcity&task=searchVenues&format=json',
        { search: request_content },
        // The server will respond with some data encoded in JSON
        function(data){
          // Clean the #result div between two search results
          jQuery('#results').html('');
          // Read and display each objects returned in the json response
          for (var i = 0; i < data.length; i++) {
            var venue = data[i];
            jQuery('#results').append(
              '<div class="grid-item">' +
                '<a href="#">' +
                  '<img src="http://placekitten.com/g/80/80" alt="">' +
                  '<div>' +
                    '<div>' +
                      '<h3>'+venue.en_name+'</h3>' +
                      '<span>* * * * *</span>' +
                    '</div>' +
                    '<div>Short descrption</div>' +
                  '</div>' +
                '</a>' +
              '</div>'
            );
          }
        }
      );
    });
  });
</script>

在/com_jomcity/site/controller.php：

class JomCityController extends JControllerLegacy
{
    /**
     * Search in all the venues
     * @return string The message to be displayed to the user
     */
    public function searchVenues() {
        if (isset($_GET['search'])) {
            // Get a db connection
            $db = JFactory::getDBO();
            // Create a new query object
            $query = $db->getQuery(true);
            // Select all records from the jomcity_venues_items table
            // Where the name or the description correspond to the user's search keywords
            // Order it by the en_score field
            $query
                ->select('*')
                ->from('#__jomcity_venues_items')
                ->where('`local_name` like "%'.$_GET['search'].'%" OR `en_name` like "%'.$_GET['search'].'%" OR `description` like "%'.$_GET['search'].'%"')
                ->order('en_name ASC');
            // Reset the query using our newly populated query object
            $db->setQuery((string)$query);
            // Load the results as a list of stdClass objects.
            $this->venues = $db->loadObjectList();
        }
        echo json_encode($this->venues);
    }
}

Joomla 3.x组件视图中的Ajax

1 个答案: