一、首先找到并打开/plus/list.php文件,在里面找到如下代码:
require_once(dirname(__FILE__)."/../include/common.inc.php");
在这段代码下面添加以下代码:
//列表页瀑布流无限加载代码
if (isset( $_GET [ 'ajax' ])){
$typeid = isset( $_GET [ 'typeid' ]) ? intval ( $_GET [ 'typeid' ]): 0; //传递过来的分类ID
$page = isset( $_GET [ 'page' ]) ? intval ( $_GET [ 'page' ]): 0; //页码
$pagesize = isset( $_GET [ 'pagesize' ]) ? intval ( $_GET [ 'pagesize' ]): 15; //每页多少条,也就是一次加载多少条数据
$start = $page >0 ? ( $page -1)* $pagesize : 0; //数据获取的起始位置。即limit条件的第一个参数。
$typesql = $typeid ? " WHERE typeid=$typeid" : '' ; //这个是用于首页实现瀑布流加载,因为首页加载数据是无需分类的,所以要加以判断,如果无需
$total_sql = "SELECT COUNT(id) as num FROM `wmd_archives` $typesql " ;
$temp = $dsql ->GetOne( $total_sql );
$total = 0; //数据总数
$load_num =0;
if ( is_array ( $temp )){
$load_num = round (( $temp [ 'num' ]-15)/ $pagesize ); //要加载的次数,因为默认已经加载了
$total = $temp [ 'num' ];
}
$sql = "SELECT a.*,t.typedir,t.typename,t.isdefault,t.defaultname,t.namerule,
t.namerule2,t.ispart, t.moresite,t.siteurl,t.sitepath
FROM `wmd_archives` as a JOIN `wmd_arctype` AS t ON a.typeid=t.id $typesql ORDER BY id DESC LIMIT $start , $pagesize ";
$dsql ->SetQuery( $sql );
$dsql ->Execute( 'list' );
$statu = 0; //是否有数据,默认没有数据
$data = array ();
$index = 0;
while ( $row = $dsql ->GetArray( "list" )){
$row [ 'info' ] = $row [ 'info' ] = $row [ 'infos' ] = cn_substr( $row [ 'description' ],160);
$row [ 'id' ] = $row [ 'id' ];
$row [ 'filename' ] = $row [ 'arcurl' ] = GetFileUrl( $row [ 'id' ],
$row [ 'typeid' ], $row [ 'senddate' ], $row [ 'title' ], $row [ 'ismake' ],
$row [ 'arcrank' ], $row [ 'namerule' ], $row [ 'typedir' ], $row [ 'money' ],
$row [ 'filename' ], $row [ 'moresite' ], $row [ 'siteurl' ], $row [ 'sitepath' ]);
$row [ 'typeurl' ] = GetTypeUrl( $row [ 'typeid' ], $row [ 'typedir' ],
$row [ 'isdefault' ], $row [ 'defaultname' ], $row [ 'ispart' ],
$row [ 'namerule2' ], $row [ 'moresite' ], $row [ 'siteurl' ], $row [ 'sitepath' ]);
if ( $row [ 'litpic' ] == '-' || $row [ 'litpic' ] == '' ){
$row [ 'litpic' ] = $GLOBALS [ 'cfg_cmspath' ]. '/images/defaultpic.gif' ;
}
if (!preg_match( "#^http:\/\/#i" , $row [ 'litpic' ]) && $GLOBALS [ 'cfg_multi_site' ] == 'Y' ){
$row [ 'litpic' ] = $GLOBALS [ 'cfg_mainsite' ]. $row [ 'litpic' ];
}
$row [ 'picname' ] = $row [ 'litpic' ]; //缩略图
//$row['stime'] = GetDateMK($row['pubdate']);
$row [ 'stime' ] = date ( 'Y-m-d H:i' , $row [ 'pubdate' ]);
$row [ 'click' ] = $row [ 'click' ];
$row [ 'typelink' ] = "" . $row [ 'typename' ]. "" ; //分类链
$row [ 'fulltitle' ] = $row [ 'title' ]; //完整的标题
$row [ 'shorttitle' ] = $row [ 'shorttitle' ]; //副标题
$row [ 'title' ] = cn_substr( $row [ 'title' ], 80); //截取后的标题
$data [ $index ] = $row ;
$index ++;
}
if (! empty ( $data )){
$statu = 1; //有数据
}
$result = array ( 'statu' => $statu , 'list' => $data , 'total' => $total , 'load_num' => $load_num );
echo json_encode( $result ); //返回数据
exit ();
}
二、然后在需要使用瀑布流无线加载的织梦dedecms模板里引用下面这个js代码(这个js大家应该不是很陌生,只要有用到JQ库函数的话一定要引用这个js):
<script src="http://libs.baidu.com/jquery/1.9.0/jquery.js"></script>
三、并在模板底部添加以下代码:
<script type="text/javascript">
var loadConfig = {
url_api: '/plus/list.php' ,
typeid:{dede:field name= "typeid" /},
page:2,
pagesize:15, //这个就是滑动一次添加几条信息的参数设置
loading : 0,
}
function loadMoreApply(){
if (loadConfig.loading == 0){
var typeid = loadConfig.typeid;
var page = loadConfig.page;
var pagesize = loadConfig.pagesize;
var url = loadConfig.url_api,data={ajax: 'pullload' ,typeid:typeid,page:page,pagesize:pagesize};
var sTop = document.body.scrollTop || document.documentElement.scrollTop, dHeight = $(document).height(), cHeight = document.documentElement.clientHeight;
console.log(dHeight);
if (sTop + cHeight >= dHeight - cHeight) {
loadConfig.loading = 1;
function ajax(url, data) {
$.ajax({url: url,data: data,async: false ,type: 'GET' ,dataType: 'json' ,success: function (data) {
addContent(data);
}});
}
ajax(url,data);
}
}
}
function addContent (rs){
if (rs.statu== 1){
var data = rs.list;
var total = rs.total;
var arr=[];
var length = data.length;
for ( var i=0;i<length;i++){
arr.push( '<a href="' +data[i].arcurl+ '" title="' +data[i].title+ '">' );
arr.push( '<dl class="yz_card">' );
arr.push( '<dt class="yz_card_dt">' );
arr.push( '<img src="' +data[i].picname+ '" alt="' +data[i].title+ '">' );
arr.push( '</dt>' );
arr.push( '<dd class="yz_card_dd">' );
arr.push( '<p class="yz_card_p">' +data[i].title+ '</p>' );
arr.push( '<div class="yz_card_icon">' );
arr.push( '<span class="yz_comment">' );
arr.push(data[i].click);
arr.push( '<em class="yz_icon_comment"><img src="/templets/default/images/pingluan.png" height="14"></em>' );
arr.push( '</span>' );
arr.push( '</div>' );
arr.push( '<div class="yz_datetime">' +data[i].stime+ '</div>' );
arr.push( '</dd>' );
arr.push( '</dl>' );
arr.push( '</a>' );
}
$( ' .arclist ' ).append(arr.join( '' ));
loadConfig.load_num = rs.load_num;
if (total<loadConfig.page*loadConfig.pagesize || loadConfig.page > loadConfig.load_num){
window.removeEventListener( 'srcoll' ,loadMoreApply, false );
}
loadConfig.page++;
loadConfig.loading = 0;
}
}
function pullLoad(){
window.addEventListener( 'scroll' , loadMoreApply, false );
}
pullLoad();
</script>
上面的代码中的$('.arclist').append(arr.join(''));里的arclist对应模板内列表的外框class属性,这个就是说列表页要加载时候要有一个触发机制,这个机制就是用这个class属性。arr.push部分对应的是列表中单篇文章的代码。
到此织梦dedecms瀑布流无限加载就实现了,这个只是一个demo例子,比如无限加载文章的样式这些需要自己做一些修改,有需要的朋友可以研究下!
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