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How to implement list paging function using PHP
- php中世界最好的语言Original
- 2017-12-20 14:30:475493browse
We know that when using thinkPHP framework to do projects, we often encounter paging the contents of the list, because the thinkPHP framework comes with paging function, but There is a flaw. Every time you return data to the page, you need to reload the JS, CSS and other resources required by the page, which greatly increases the traffic pressure. Today I will teach you how to implement the return list paging function without repeatedly loading the page.
2. Paging process
Process description:
1) Investigate the function in App.php, which calls the fetch function. The fetch function renders list.html.
2) list.html calls the function to get the total number of pages and gets the total number of pages.
3) Get the first page of data.
4) Initialize the laypage paging plug-in.
5) Click on the page number to trigger paging query.
3. Code related to implementing paging function
1. App.php Controller code
//fetch渲染页面
public function index()
{
return $this->fetch('list');
}
//根据页面传入的页码查询数据
public function getPage()
{
<span style="color:#FF0000;">// 获取页面传入的页码 </span>
$nowpage = input("page");
//每页显示10条数据
$limits = 10;
$app = new appInfo();
$page_info = $app->limit(($nowpage * $limits), $limits)->select();
// ajax 分页输出
$info = ['pageinfo'=>$page_info,'nowpage'=>$nowpage,'nowpage'=>$nowpage];
return json($info);
}
//获取所有页数
public function getAllPage(){
try{
$count = appInfo::count();
$limits = 10;
// 计算总页面
$allpage = ceil($count / $limits);
$info =['allpage'=>$allpage];
}catch (\Exception $e){
abort(500,$e->getMessage(),['result'=>TopsecGWErrer::TOPSEC_GW_ERR_NO_UNKNOWN]);
}
return json($info);
}2. The html code in list.html
<div class="box-body">
<table id="table1" class="table table-bordered table-striped">
<thead>
<tr>
<th>应用名称</th>
<th>应用类型</th>
<th>应用图像</th>
<th>创建日期</th>
<th>修改日期</th>
<th>操作</th>
</tr>
</thead>
<tbody id="table_body"></tbody>
<tfoot>
</tfoot>
</table>
<div id="result"></div>
<div class=" ">
<button id="add_app" type="button" class="btn btn-primary col-xs-offset-5" >
<span class='fa fa-tasks white'></span>丨添加应用
</button>
</div>
<div id="content"> </div>
<div class="box-body">
<button id="add_img" type="button" class="btn btn-primary col-xs-offset-5" >
<span class='fa fa-tasks white'></span>丨添加图片
</button>
</div>
<!-- /.box-body -->
</div>
3. The jQuery code in list.html
//pageCount：总页数。用于初始化laypage分页控件。
//pageIndex：初始化当前页。显示第一页。
//currentPage：当前页数。
//getPageData:获取每页数据的函数。
//url:获取每页数据的方法的路径。由控制器和函数名组成。
function jsonPage(pageCount, pageIndex,currentPage, getPageData,url) {
var laypageindex = laypage({
cont: 'result', //容器。值支持id名、原生dom对象，jquery对象。
skin: '#3c8dbc',
pages: pageCount, //通过后台拿到的总页数
curr: pageIndex, //初始化当前页
prev: '上一页', //若不显示，设置false即可
next: '下一页', //若不显示，设置false即可
skip: true, //是否开启跳页
jump: function (obj, first) { //触发分页后的回调
//getPageData(1);
if (!first) { //点击跳页触发函数自身，并传递当前页：obj.curr
getPageData(url,obj.curr);
currentPage = obj.curr;
}
}
});
}
/url:获取总页数据的方法的路径。由控制器和函数名组成。
function getAllpage(url){
var tmp ;
$.ajax({
type: "GET",
dataType: "json",
async: false,
url: PUBLIC_BASE+url,
success: function(json) {
var data = eval(json);
tmp=data.allpage;
},
error: function(json) {
}
});
return tmp;
}
//data:每页的数据。由JSON对象组成。
function instantiation(data) {
//begin $.each
$.each(data.pageinfo, function (index, item) {
$("#table_body").append($('<tr class="table_tr"/>')
.append($("<td/>").html(item.name))
.append($("<td/>").html(item.desc))
.append($("<td/>").html("<img src='"+item.appImg+"' />"))
.append($("<td/>").html(item.create_time))
.append($("<td/>").html(item.update_time))
.append(
$("<td />")
.append($("<a class='yellow' id='view"+item.id+"'><i class='fa fa-eye fa-fw'></i>查看丨 </a>"))
.append($("<a class='green' id='edit"+item.id+"'><i class='fa fa-edit fa-fw'></i>编辑丨 </a>"))
.append($("<a class='red' id='delete"+item.id+"'><i class='fa fa-remove fa-fw'></i>删除丨 </a>"))
.append($("<a class='blue' id='forbid" + item.id + "'><i class='fa fa-ban fa-fw'></i>禁用</a>"))
)
);
$("#view"+item.id).click(function() {
fillMainContent("/application/application?model=view&id="+item.id);
})
$("#edit"+item.id).click(function() {
fillMainContent("/application/application?model=edit&id="+item.id);
})
$("#delete"+item.id).click(function() {
deleteApp(item.id);
alert("删除成功");
})
$("#forbid"+item.id).click(function() {
deleteApp(item.id);
alert("删除成功");
getPageData(currentPage);
})
});
//end $.each
}
//获取每页的数据。curr:页码 ，curl:获取数据的路径。
function getPageData(url,curr) {
curr = curr-1;
$.ajax({
type: "GET",
dataType: "json",
data: {page:curr},
url: PUBLIC_BASE+url,
success: function(json) {
$('#table_body').empty();
var data = eval(json);
console.log(data);
instantiation(data);
},
error: function(json) {
var data = eval(json);
console.log(data);
}
});
}
<span style="color:#FF0000;">//调用函数实现分页</span>
//获取总页数，用于初始化分页控件总页数
pageCount= getAllpage("/application/getAllPage");
//获取第一页数据
getPageData("/application/getpage",1);
//初始化分页控件并分页
jsonPage(pageCount,pageIndex,currentPage,getPageData,"/application/getpage");
I believe you have mastered the methods after reading these cases. For more exciting information, please pay attention to other related articles on the php Chinese website!
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