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First: select * from table limit 10,5;
The meaning of Article 10 // skip extracted five data read out from the start limit rear section 10, reads information 5, i.e. the data read 5
第二： select * from table limit 10 offset 5;
// remove the meaning of Article 5 is started (exclusive) data from the data 10, 10 with the rear limit of data, the start offset is read from the back section 5, i.e., read the first article 6--10
The first Needless to say, today the Lord said second offset lower usage (paging), directly on the code:
From Loading, No data to (sliding load)
Page JS
<script>
$(function(){
var itemIndex = 0;
var tab1LoadEnd = false;
var page = 1;
var type = '<?php echo Yii::$app->request->get("type") ? Yii::$app->request->get("type") : 1 ?>';
// tab
$('.gtable').on('scroll',function(){
var $this = $(this);
itemIndex = $this.index();
// // 如果数据没有加载完
if(!tab1LoadEnd){
// 解锁
dropload.unlock();
dropload.noData(false);
}else{
// 锁定
dropload.lock('down');
dropload.noData();
}
// 重置
dropload.resetload();
});
// dropload
var dropload = $('#blockBuy').dropload({
scrollArea : window,
loadDownFn : function(me){
// 加载菜单一的数据
page++;
var $url = '/trade/showadd.html?pay_type='+ type +'&page='+ page;
$.ajax({
type: 'GET',
url: $url,
dataType: 'json',
success: function(data){
if(data.data != null && data.data.length > 0){
var result = '';
for(var i = 0; i < data.data.length; i++) {
result += '<li class="reitem"><div class="reile"><img src="/<?php echo $user_info['icon']; ?>" alt="" class="reilimg" /></div><div class="reilr"><p class="reilt"><span class="reilte"><?php echo $user_info['username']; ?></span><span class="reiltr on">' + data.data[i]['amount'] + '</span></p><p class="reilt"><span class="reilte">UID:<?php echo $user_info['userid']; ?></span><span class="reiltr">' + data.data[i]['created_at'] + '</span></p></div></li>';
}
}else{
// 数据加载完
tab1LoadEnd = true;
// 锁定
me.lock();
// 无数据
me.noData();
}
// 为了测试，延迟1秒加载
setTimeout(function(){
$('.lists').eq(itemIndex).append(result);
// 每次数据加载完，必须重置
me.resetload();
},1000);
},
error: function(err){
//alert('Ajax error!');
// 即使加载出错，也得重置
// me.resetload();
}
});
}
});
});
</script>Controller
public function actionShowrecord () {
$this->layout = false;
$type = HtmlPurifier::process(Yii::$app->request->get('type'));
$userid = Yii::$app->user->id;
$key = $userid."language";
$lang = Yii::$app->cache->get($key);
if($type == 1) {
$event_type = 33;
$wallet_type = 3;
$html_type = 'fudou_record';
} elseif ($type ==2) {
$event_type = 34;
$wallet_type = 4;
$html_type = 'fubi_record';
} else {
echo "<script>alert('类型错误')</script>";
exit;
}
$record = WB_UserWalletRecord::getMyRecord($userid,$event_type,$wallet_type);
if($type == 1){
$sendType = Yii::t("app","福豆记录");
}else if($type == 2){
$sendType = Yii::t("app","福币记录");
}else{
echo "<script>alert('类型错误')</script>";
exit;
}
$user_info = WB_UserProfile::find()->where(['userid'=>$userid])->one();
return $this->render('fudou_record',["record" => $record, 'title' => $sendType,'lang'=>$lang,'user_info'=>$user_info]);
}
// 转让福豆记录列表加载
public function actionShowadd(){
$userid = Yii::$app->user->id;
$type = HtmlPurifier::process(Yii::$app->request->get('pay_type'));
if($type == 1) {
$event_type = 33;
$wallet_type = 3;
} elseif ($type ==2) {
$event_type = 34;
$wallet_type = 4;
} else {
echo "<script>alert('类型错误')</script>";
exit;
}
// 获取订单列表
$tradeList = WB_UserWalletRecord::getMyRecord($userid,$event_type,$wallet_type);
return json_encode($tradeList, true);
}model
public static function getMyRecord($userid,$event_type,$wallet_type) {
$query = WB_UserWalletRecord::find()->where("userid = :userid",[":userid"=>$userid])->orderBy("created_at desc");
if ($event_type > 0) {
$query->andFilterWhere(["=","event_type",$event_type]);
}
if ($wallet_type > 0) {
$query->andFilterWhere(["=","wallet_type",$wallet_type]);
}
$countQuery = clone $query;
$pagesize = 10;
$pager = new \yii\data\Pagination(['totalCount' => $countQuery->count(), 'defaultPageSize' => $pagesize]);
$offset = (Yii::$app->request->get("page")-1)*$pagesize;
$limit = Yii::$app->request->get("limit",$pagesize);
$res = $query->offset($offset)->limit($limit)->asArray()->all();
$temp=[];
foreach($res as $item){
$temp[]=[
"created_at"=>date("Y/m/d",$item['created_at']),
"event_type"=> self::$event_type[$item["event_type"]],
"amount"=>$item["pay_type"]==1?$item["amount"]:"-".$item["amount"],
"wallet_type"=>self::$wallet_type[$item["wallet_type"]],
];
}
return ["pager" => $pager, "data" => $temp];
}This completes the loading effect of sliding, each load 10 (slide upward loading a plurality 10, until all loading).