How to implement Ajax in Zend Framework

This article mainly introduces the method of implementing Ajax in the Zend Framework framework, and analyzes in detail the specific steps and related operating techniques to implement the ajax function in the Zend Framework framework in the form of examples. I hope it can help everyone.

Development platform: Windows XP SP2
Testing platform: FreeBSD 7.0
Development tools: Netbeans 6.1
Using framework: Zend Framework 1.5.2
Database: MySQL 5.0.51a

Required database tables and ZF related directories and files:

1. Table:

mysql> select * from news;
+----+-------+---------------------+
| id | title | add_time
| +----+-------+---------------------+
| 22 | rot  | 2008-01-04 00:00:00 |
| 23 | aaa  | 2008-01-04 00:00:00 |
| 24 | rot  | 2008-01-04 00:00:00 |
| 29 | dfeew | 2008-02-27 00:00:00 |
| 26 | jesse | 2008-02-27 00:00:00 |
| 27 | andle | 2008-02-27 00:00:00 |
| 28 | andle | 2008-02-27 00:00:00 |
+----+-------+---------------------+

2. Directory:

##3. Related files:

1.index.php //Entry file

2.TestDbCon.phhp //Database connection file

3.News.php //Abstract database Table file

4.TestController.php //Controller

5.ajax.phtml //Customer operation page, including generating XMLHttpRequest object, sending ajax request, processing the request, and getting back from the server Value etc.

6.get-ajax.phtml //Finally generate page elements based on the data retrieved from the server

Related file content:

1.index.php //Entry file

<?php
set_include_path(&#39;.&#39; . PATH_SEPARATOR .&#39;../library&#39; . PATH_SEPARATOR . get_include_path() . PATH_SEPARATOR . &#39;../application/modules/default/models&#39; . PATH_SEPARATOR . &#39;../application/modules/admin/models&#39;);
require_once &#39;Zend/Controller/Front.php&#39;;
require_once &#39;Zend/Controller/Router/Route.php&#39;;
$ctrl=Zend_Controller_Front::getInstance();
$ctrl->addModuleDirectory(&#39;../application/modules&#39;);
$ctrl->throwExceptions(true);
$ctrl->dispatch();
?>

2.TestDbCon.phhp //Database connection file

<?php
  require_once &#39;Zend/Db.php&#39;;
  require_once &#39;Zend/Registry.php&#39;;
  class TestDbCon{
    public static function getTestDbCon(){
      $params=array(
      &#39;host&#39;=>&#39;localhost&#39;,
      &#39;username&#39;=>&#39;root&#39;,
      &#39;password&#39;=>&#39;123456&#39;,
      &#39;dbname&#39;=>&#39;test&#39;
      );
      $con=Zend_Db::factory(&#39;Pdo_Mysql&#39;,$params);
      return $con;
    }
  }
?>

3.News.php //Abstract database table file

<?php
/**
 * PHP Template.
 */
require_once &#39;Zend/Db/Table/Abstract.php&#39;;
class News extends Zend_Db_Table_Abstract{
  //  protected $_schema=&#39;test&#39;;
    protected $_name=&#39;news&#39;;
    protected $_primary=&#39;id&#39;;
    protected $_sequence=true;
}
?>

4.TestController.php //Controller

<?php
  require_once &#39;Zend/Controller/Action.php&#39;;
  require_once &#39;Zend/View.php&#39;;
  require_once &#39;News.php&#39;;
  require_once &#39;TestDbCon.php&#39;;
  class TestController extends Zend_Controller_Action{
    public function ajaxAction(){
      $this->render();
    }
    public function getAjaxAction(){
//      $aaa=$_GET[&#39;q&#39;];
//      $this->view->sid=$_GET[&#39;sid&#39;];
      $aaa=$this->_request->getParam(&#39;q&#39;);
      $this->view->sid=$this->_request->getParam(&#39;sid&#39;);
      $conn=TestDbCon::getTestDbCon();
      $news_tb=new News(array(&#39;db&#39;=>$conn));
      $where=$news_tb->getAdapter()->quoteInto(&#39;title=?&#39;,$aaa);
      $this->view->rowSet=$news_tb->fetchAll($where);
      $this->render();
    }
  }
?>

5.ajax.phtml //Customer operation page, including generating XMLHttpRequest objects, sending ajax requests, processing requests, retrieving server return values, etc.

<script type="text/javascript">
  var xmlHttp
  function showValue(str)
  {
    xmlHttp=getXmlHttpObject();
    if (xmlHttp==null)
    {
      alert ("您的浏览器不支持AJAX.");
      return;
    }
    var url="/test/get-ajax";
    url=url+"/q/"+str;
    url=url+"/sid/"+Math.random();
    xmlHttp.onreadystatechange=stateChanged;
    xmlHttp.open("GET",url,true);
    xmlHttp.send(null);
  }
  function stateChanged()
  {
    if (xmlHttp.readyState==4)
    {
      document.getElementById("resulte").innerHTML=xmlHttp.responseText;
    }
  }
  function getXmlHttpObject()
  {
    var xmlHttp=null;
    try
    {
      // Firefox, Opera 8.0+, Safari
      xmlHttp=new XMLHttpRequest();
    }
    catch (e)
    {
      // Internet Explorer
      try
      {
        xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
      }
      catch (e)
      {
        xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
      }
    }
    return xmlHttp;
  }
</script>
<form>
  请选择一位客户：
  <select name="customers" onchange="showValue(this.value)">
  <option value="rot">rot</option>
  <option value="aaa">aaa</option>
  <option value="jesse">jesse</option>
  <option value="andle">andle</option>
  </select>
</form>
<p>
<p id="resulte"><b>客户信息将在此处列出。</b></p>
</p>

6.get-ajax.phtml //Finally generate page elements based on the data retrieved from the server

<?php
  foreach($this->rowSet as $row){
    echo "<p>";
    echo "<ul>";
    echo "<li>";
    echo "id=".$row->id." title=".$row->title." add_time=".$row->add_time;
    echo "</li>";
    echo "</ul>";
    echo "</p>";
  }
 echo $this->sid;
?>

Related recommendations:

Zend Framework Summary of database operation skills

Zend Framework’s method of establishing a ZF project based on the Command line

Detailed explanation of commonly used verifiers in Zend Framework

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