[英]How to rerender data in a javascript table orderd by a specific column
By javascript I generate rows for Agents in a table.通过javascript,我在表中为代理生成行。 every row represent an agent.
每行代表一个代理。 after this I receive live data to update the columns.
在此之后,我收到实时数据以更新列。 I have a column called (Calls) and i need to order the agents by calls (live update depending on received data) descending.
我有一个名为 (Calls) 的列,我需要通过调用(根据收到的数据进行实时更新)降序对代理进行排序。 example
例子
agents ----- calls Sam ---------13 Al ---------12 Sara---------8
if Sara got the most data by time then she'll be the first.如果 Sara 按时间获得的数据最多,那么她将是第一个。
agents -------calls Sara----------15 Sam ----------13 Al------------12
and so on ..等等 ..
this is my row rendering这是我的行渲染
var $agentRow = '<tr id="agentRow_' + agentId + '"><th scope="row">' + agentName + '</th><td class="calls" id="agentCalls_' + agentId + '">' + outTotalCalls +
'</td><td class="minutes" id="agentMinutes_' + agentId + '">' +
outCallMinutes + '</td>' +
'<td class="averages" id="agentAverage_' + agentId + '">' + averageOutCallTime + '</td></tr>';
//if $agentRow exists invoke setIncomingValuesToAgentsFields else append it to the table
if ($('#agentRow_' + agentId).length) {
setIncomingValuesToAgentsFields('#agentCalls_' + agentId, outTotalCalls);
setIncomingValuesToAgentsFields('#agentMinutes_' + agentId, outCallMinutes);
setIncomingValuesToAgentsFields('#agentAverage_' + agentId, averageOutCallTime);
} else {
$('#agentsTable').append($agentRow);
}
function setIncomingValuesToAgentsFields(elementId, inComingValue) {
var currentElementValue = 0;
if ($(elementId).text() !== "") {
currentElementValue = $(elementId).text();
currentElementValue = parseFloat(currentElementValue);
currentElementValue += inComingValue;
$(elementId).text(currentElementValue);
} else {
$(elementId).text(currentElementValue);
}
}
Hope you will be getting data from server using Ajax call .希望您将使用 Ajax 调用从服务器获取数据。 So If your having the result data in JSON object , then you can sort the data to find out which is having highest value .
因此,如果您在 JSON 对象中有结果数据,那么您可以对数据进行排序以找出具有最高值的数据。 The follwing functon will help us to sort the data
下面的函数将帮助我们对数据进行排序
sortTable:function (property,asc)
{
sampleTableObject = sampleTableObject.sort(function(a, b) {
if (asc) return (a[property] > b[property]) ? 1 : ((a[property] < b[property]) ? -1 : 0);
else return (b[property] > a[property]) ? 1 : ((b[property] < a[property]) ? -1 : 0);
});
}
property is the json object property (here it should be calls) based on which you need to sort .属性是 json 对象属性(这里应该是调用),您需要根据它对 .
Pass false to ' asc ' to sort in descending order.将 false 传递给 ' asc ' 以降序排序。
Assign sampleTableObject with the result json object and call sortTable() .使用结果 json 对象分配sampleTableObject并调用 sortTable() 。 Then use the sorted object to build the table.
然后使用排序后的对象来建表。
See the live sample of what you need.查看您需要的实时样本。 After 3 second Al calls become 14, and table rows will be sorted again.
3 秒后 Al 调用变为 14,表行将再次排序。
var agents = [ { name: 'Sara', calls : 15 }, { name: 'Sam', calls : 13 }, { name: 'Al', calls : 12 } ]; function to_row(obj){ var tr = $('<tr></tr>'); tr.data('obj', obj); $('<td>'+obj.name+'</td>').appendTo(tr); $('<td>'+obj.calls+'</td>').appendTo(tr); return tr; } function table_update(obj){ $('#table tr').each(function(){ var t=$(this); var o=t.data('obj'); if(o.name==obj.name){ t.remove(); }; if(o.calls>obj.calls){ to_row(obj).insertAfter(t); } return t.data('obj'); }) } agents.sort(function(x,y){ return y.calls - x.calls; }).forEach(function(o){ to_row(o).appendTo( $('#table') ); }); setTimeout(function(){ table_update( { name: 'Al', calls : 14 } ); }, 3000);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <table id="table"> </table>
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