Ajax script not loading anything and no requests being sent_问答_开发者

Ajax script not loading anything and no requests being sent

开发者 https://www.devze.com 2023-02-26 05:32 出处：网络

This script is supposed to run a jQuery Ajax script every second, it is supposed to fetch all newer posts then put them on top of the original ones. But at the moment nothing is happening, it loads the initial posts but nothing else. Firebug console is reporting no errors, or no Ajax requests being sent at all. Can you see anything wrong with this script at all that could cause this? Thanks :)

Source code - index.php(i left out css):

<?php
    include('config.php');
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Twitter Style load more results.</title>
<link href="frame.css" rel="stylesheet" type="text/css">
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/
libs/jquery/1.3.0/jquery.min.js"></script>

<script type="text/javascript">
$(function () {
    $(function () {
        setInterval(oneSecondFunction, 1000);
    });

    function oneSecondFunction() {
        var ID = $(this).attr("id");
        if (ID) {
            $("#more" + ID).html('<img src="moreajax.gif" />');

            $.ajax({
                type: "POST",
                url: "ajax_more.php",
                data: "lastmsg=" + ID,
                cache: false,
                success: function (html) {
                    $("ol#updates").prepend(html);
                    $("#more" + ID).remove();
                }
            });
        } els开发者_StackOverflow中文版e {

        }


        return false;


    };
});
</script>
</head>
<body> 
<div id='container'>
  <ol class="timeline" id="updates">
<?php
    $sql=mysql_query("select * from updates ORDER BY item_id DESC LIMIT 9");
    while($row=mysql_fetch_array($sql))
    {
        $msg_id=$row['item_id'];
        $message=$row['item_content'];
?>
<li>
  <?php echo $message; ?>
</li>
<?php } ?>
</ol>
</div>
</body>
</html>

ajax_more.php -

 <?php
include("config.php");


if(isset($_POST['lastmsg']))
{
    $lastmsg=$_POST['lastmsg'];
    $result=mysql_query("select * from updates where item_id<'$lastmsg' order by item_id desc limit 9");
    $count=mysql_num_rows($result);
    while($row=mysql_fetch_array($result))
    {
        $msg_id=$row['item_id'];
        $message=$row['item_content'];
?>


<li>
  <?php echo $message; ?>
</li>


<?php
    }


?>
<?php
}
?>

Some of the code in the beginning looks wrong. This should work. It will call the oneSecondFunction every second:

$(document).ready(function() {

  setInterval(oneSecondFunction, 1000);


  function oneSecondFunction() {
    //console.log('run oneSecondFunction');
    var ID = $(this).attr("id");
    if(ID) {
      $("#more"+ID).html('<img src="moreajax.gif" />');  
      $.ajax({ type: "POST", url: "ajax_more.php", data: "lastmsg="+ ID,  cache: false,
               success: function(html){
                 $("ol#updates").prepend(html);
                 $("#more"+ID).remove();
               }
              });
    } else {  
    }   return false;   };
});

i quoted out the section where it gets the id, because 'this' wasn't referring to anything.

<script type="text/javascript">
$(function() {
    setInterval(oneSecondFunction, 1000);
});

function oneSecondFunction() {
    //var ID = $(this).attr("id");
    var ID = '1';
    if(ID){
        $("#more"+ID).html('<img src="moreajax.gif" />');
        $.ajax({
            type: "POST",
            url: "ajax_more.php",
            data: "lastmsg="+ ID, 
            cache: false,
            success: function(html){
                $("ol#updates").prepend(html);
                $("#more"+ID).remove();
            }
        });
    }
    return false;
}
</script>