无限的ajax滚动分页循环

Question

我正在使用无限的ajax滚动.它正在工作,因为我可以点击加载更多项目,这将加载内容.然而,我应该停在最后一页,并显示"没有更多的帖子",而是它仍然显示"加载更多项目"链接,点击时再次从第2页开始分页.

安慰:

Welcome at page 2, the original url of this page would be: /website/home/2
Welcome at page 3, the original url of this page would be: /website/home/3

我应该显示"没有更多的帖子" - 而是继续如下:

Welcome at page 4, the original url of this page would be: /website/home/2
Welcome at page 5, the original url of this page would be: /website/home/3

IAS:

<script type="text/javascript">
var ias = $.ias({
  container: "#posts",
  item: ".post",
  pagination: "#pagination",
  next: ".next a"
});

ias.extension(new IASSpinnerExtension());
ias.extension(new IASTriggerExtension({offset: 1}));
ias.extension(new IASNoneLeftExtension({text: 'There are no more posts.'}));
jQuery.ias().extension(new IASPagingExtension());
jQuery.ias().on('pageChange', function(pageNum, scrollOffset, url) {

console.log(
    "Welcome at page " + pageNum + ", " +
    "the original url of this page would be: " + url    
);

});     
</script>

我试图实现以下,它不起作用:

if(url == '/website/home/2' && pageNum > 2) {
jQuery.ias().destroy();
}

我正在使用来自http://www.phpeasystep.com/phptu/29.html的分页

分页:

$targetpage = "home.php";   
$limit = 10;                            
$page = $_GET['page'];
if($page) 
    $start = ($page - 1) * $limit;      
else
    $start = 0; 



$query2 = $pdo->prepare("select count(*) from table where...");
$query2->execute(array(':id' => $id));
$total_pages = $query2->fetchColumn();  



if ($page == 0) $page = 1;                  
$prev = $page - 1;                          
$next = $page + 1;                          
$lastpage = ceil($total_pages/$limit);      
$lpm1 = $lastpage - 1;                      


$pagination = "";
if($lastpage > 1)
{   
    $pagination .= "<ul class=\"pagination\">";

    if ($page > 1) 
        $pagination.= " <li class=\"next\"><a href=\"$targetpage?page=$prev\">&laquo;</a></li>";
    else
        $pagination.= "<li class=\"disabled\"><a href=\"#\">&laquo;</a></li>";  


    if ($lastpage < 7 + ($adjacents * 2))   
    {   
        for ($counter = 1; $counter <= $lastpage; $counter++)
        {
            if ($counter == $page)
                $pagination.= "<li class=\"active\"><a href=\"#\">$counter<span class=\"sr-only\">(current)</span></a></li>";
            else
                $pagination.= " <li class=\"next\"><a href=\"$targetpage?page=$counter\">$counter</a></li>";                    
        }
    }
    elseif($lastpage > 5 + ($adjacents * 2))    
    {

        if($page < 1 + ($adjacents * 2))        
        {
            for ($counter = 1; $counter < 4 + ($adjacents * 2); $counter++)
            {
                if ($counter == $page)
                    $pagination.= "<li class=\"active\"><a href=\"#\">$counter<span class=\"sr-only\">(current)</span></a></li>";
                else
                    $pagination.= " <li class=\"next\"><a href=\"$targetpage?page=$counter\">$counter</a></li>";                    
            }
            $pagination.= "";
            $pagination.= " <li class=\"next\"><a href=\"$targetpage?page=$lpm1\">$lpm1</a></li>";
            $pagination.= " <li class=\"next\"><a href=\"$targetpage?page=$lastpage\">$lastpage</a></li>";      
        }

        elseif($lastpage - ($adjacents * 2) > $page && $page > ($adjacents * 2))
        {
            $pagination.= " <li class=\"next\"><a href=\"$targetpage?page=1\">1</a></li>";
            $pagination.= " <li class=\"next\"><a href=\"$targetpage?page=2\">2</a></li>";
            $pagination.= "";
            for ($counter = $page - $adjacents; $counter <= $page + $adjacents; $counter++)
            {
                if ($counter == $page)
                    $pagination.= "<li class=\"active\"><a href=\"#\">$counter<span class=\"sr-only\">(current)</span></a></li>";
                else
                    $pagination.= " <li class=\"next\"><a href=\"$targetpage?page=$counter\">$counter</a></li>";                    
            }
            $pagination.= "";
            $pagination.= " <li class=\"next\"><a href=\"$targetpage?page=$lpm1\">$lpm1</a></li>";
            $pagination.= " <li class=\"next\"><a href=\"$targetpage?page=$lastpage\">$lastpage</a></li>";      
        }

        else
        {
            $pagination.= " <li class=\"next\"><a href=\"$targetpage?page=1\">1</a></li>";
            $pagination.= " <li class=\"next\"><a href=\"$targetpage?page=2\">2</a></li>";
            $pagination.= "";
            for ($counter = $lastpage - (2 + ($adjacents * 2)); $counter <= $lastpage; $counter++)
            {
                if ($counter == $page)
                    $pagination.= "<li class=\"active\"><a href=\"#\">$counter<span class=\"sr-only\">(current)</span></a></li>";
                else
                    $pagination.= " <li class=\"next\"><a href=\"$targetpage?page=$counter\">$counter</a></li>";                    
            }
        }
    }


    if ($page < $counter - 1) 
        $pagination.= " <li class=\"next\"><a href=\"$targetpage?page=$next\">&raquo;</a></li>";
    else
        $pagination.= "<li class=\"disabled\"><a href=\"#\">&raquo;</a></li>";
    $pagination.= "</ul>\n";        
}

Answer 1

请尝试为无限 ajax 滚动再添加一个事件处理程序，如下所示：

jQuery.ias.on('noneLeft', function() {
    console.log('We hit the bottom!');
});

并查看浏览器控制台中是否打印了此内容。如果没有打印出来，那么您的分页链接有问题。交叉验证一下。使用 firebug 检查您的 HTML 并检查是否生成了有效链接。

如果您的分页正确并且您看到上述noneLeft事件，请尝试使用以下代码停止滚动：

pageNum = 0;
jQuery.ias.on('next', function(url) {
    if (url.indexOf("/website/home/2") > -1 && pageNum > 2) {
        return false;
    }
    else{
        pageNum++; 
    }
})