We Keep Coding

JQuery Datable throwing error for valid "columns" option parameter

Ok so i have a jquery datatable which is structured like this
$(document).ready(function () {
var table = $('#tableContent').DataTable({
"processing": true,
"serverSide": true,
"filter": true,
"ajax": {
"url": "path/to/api",
"type": "POST",
"datatype": "json"
},
"columnDefs": [{
"searchable": false,
"orderable": false,
"targets": 0
}],
"columns": [
null,
{ "data": "data1", "name": "data1", "autoWidth": true },
{ "data": "data2", "name": "data2", "autoWidth": true },
{ "data": "data3", "name": "data3", "autoWidth": true },
{ "data": "data4", "name": "data4", "autoWidth": true },
{ "data": "data5", "name": "data5", "autoWidth": true },
{ "data": "data6", "name": "data6", "autoWidth": true },
{ "data": "data7", "name": "data7", "autoWidth": true }
],
"order": [[1, 'asc']]
});
table.on('order.dt search.dt page.dt', function () {
table.column(0, { search: 'applied', order: 'applied' }).nodes().each(function (cell, i) {
cell.innerHTML = i + 1;
});
}).draw();
});
<table class="tableWrapper" id="tableContent">
<thead>
<tr>
<th>#</th>
<th>data1</th>
<th>data2</th>
<th>data3</th>
<th>data4</th>
<th>data5</th>
<th>data6</th>
<th>data7</th>
</tr>
</thead>
<tbody>
</tbody>
<tfoot>
</tfoot>
</table>
Here is the JSON response to the Api being called
{
"draw":"1",
"recordsFiltered":48,
"recordsTotal":48,
"data":[
{
"data1":"XXXX",
"data2":"XXXX",
"data3":"XXXX",
"data4":"XXXX",
"data5":"XXXX",
"data6":"XXXX",
"data7":"XXXX"
}...
]
}
It throws this error :
"DataTables warning: table id=tableContent - Requested unknown parameter '0' for row 0, column 0. For more information about this error, please see http://datatables.net/tn/4" (Attached error message picture)
BUT! shortly after the error is thrown, the data loads in with no issues.
Replacing null with {data:null} seems to get rid of the error but it messes with my index column. What was supposed to be a sequence of 1,2,3,4... is now just a bunch of [object Object]
see image

There is more than one way to get what you want. Here is one way, which uses the internal DataTables index assigned to each row. This assignment is purely sequential: the first row added to the table (from the first data object in your JSON) is index 0 - and so on:
"columnDefs": [ {
"targets": 0,
"render": function ( data, type, row, meta ) {
return meta.row + 1;
}
} ]
You already have a targets: 0 in your sample, so adding in this should be straightforward.
The assigned index will stick to the row, when you sort and filter.
If you want an index which represents where the row is, visually, in the table - that is more complicated (and wouldn't be do-able using server-provided data, of course).

Datatable second page do not render

I am using Datatable to render a table. The code is -
var nextPage;
$(document).ready(function() {
$('#table').DataTable( {
"processing": true,
"ordering": false,
"serverSide": true,
"sorting":false,
"paging": true,
"pageLength":20,
"lengthChange" :false,
"pagingType":"simple",
"ajax": function (data, callback, settings) {
data.nextPage=document.getElementById("nextPage").value
$.ajax({url: "get/list", data: data, success: function(result){
document.getElementById("nextPage").value=result.nextPage;
callback(result);
}});
},
"columns": [
{ "data": "first_name" },
{ "data": "title" },
{ "data": "first_name" },
{ "data": "first_name" },
{ "data": "first_name" },
{ "data": "first_name" },
{ "data": "work_email" }
]
});
});
The first page loads fine when I open the page, but the second page keeps on loading. The /get/list API call succeeds for the second page but the data is not rendered on the browser and loading icon keeps on rotating.

Use datatable ajax response data to set custom label value

I have used server-side processing data table.
Here is my datatable configuration:
var table = $("#job-table").DataTable({
"ajax": {
"url": "<?php echo url('/getJobs');?>",
"type": "POST",
"data": function (d) {
d.connection = connectionArray,
d.company = companyArray,
d.type = typeArray
}
},
"processing": true,
"serverSide": true,
"columns": [
{ "data": "id" },
{ "data": "job_id" },
{ "data": "type" },
{ "data": "connection_id" },
{ "data": "company_id" },
{ "data": "message" },
{ "data": "total_completion_time" },
{ "data": "date" },
{ "data": "start_time" },
{ "data": "end_time" },
{ "data": "error_time" }
],
"info": false,
"searching": false,
"bLengthChange": false
});
In this datatable ajax response I have passed some another data which I am gonna use to set custom label value.
Right now, I am using same ajax call to set label value. There are two calls one is of datatable and another call for setting label. Both time I am calling same API. but want to know how can I avoid second ajax call?
Is there any way to use data-table ajax call response to set custom label value?

I do something similar. I used the dataFilter callback to handle it.
so given HTML:
<input id="txtOne"/>
<input id="txtTwo"/>
<table id="job-table" class="display"></table>
Serverside code is returning a JSON Serialized object that looks like:
{ ValueOne: "some data",
ValueTwo: "Some more data",
data: [array of data for the table] }
My table definition looks like (notice the dataFilter section):
var table = $("#job-table").DataTable({
"ajax": {
"url": "<?php echo url('/getJobs');?>",
"type": "POST",
"data": function (d) {
d.connection = connectionArray,
d.company = companyArray,
d.type = typeArray
},
// I added this section. It is called before the success callback
// You will have to figure out your parsing at this point because
// each configuration is different so I just put how mine is.
dataFilter: function(response){
var temp = JSON.parse(response);
$("#txtOne").val(temp.ValueOne);
$("#txtTwo").val(temp.ValueTwo);
return response;
}
},
"processing": true,
"serverSide": true,
"columns": [
{ "data": "id" },
{ "data": "job_id" },
{ "data": "type" },
{ "data": "connection_id" },
{ "data": "company_id" },
{ "data": "message" },
{ "data": "total_completion_time" },
{ "data": "date" },
{ "data": "start_time" },
{ "data": "end_time" },
{ "data": "error_time" }
],
"info": false,
"searching": false,
"bLengthChange": false
});

How do I pass additional parameters to the jQuery DataTable ajax call?

When loading a jQuery DataTable, I have the code shown below. How do I pass additional parameters to the AJAX call? The fnServerParams callback suggested in the questions and answers below does not work. That is, naively using aodata.push() results in "push is undefined" (because, indeed, aodata is not an array). So what's the correct way to do this?
Related questions:
Datatables serverside. Send extra parameters asynchronously
Understanding fnServerData in Datatables
Code:
self.dataTable = self.dataTableContainer.DataTable({
"autoWidth": false,
"bSort": false,
"displayStart": 0,
"paging": false,
"lengthChange": false,
"processing": true,
"serverSide": true,
"dom": "<'dataTables_header dashboard_alert_history__alertHeader'i>",
"ajax": {
url: getDataUri,
error: onError,
cache: false,
"fnDrawCallback": onTableDrawn,
},
"fnDrawCallback": onTableDrawn,
"language": {
"info": resources.alarmHistory,
"infoEmpty": resources.alarmHistory,
"infoFiltered": ''
},
"columns": [
{
"data": "timestamp",
"mRender": function (data) {
return IoTApp.Helpers.Dates.localizeDate(data, 'L LTS');
},
"name": "timestamp"
},
{
"data": "deviceId",
"mRender": function (data) {
return htmlEncode(data);
},
"name": "deviceId"
},
{
"data": "ruleOutput",
"mRender": function (data) {
return htmlEncode(data);
},
"name": "ruleOutput"
},
{
"data": "value",
"mRender": function (data) {
return htmlEncode(IoTApp.Helpers.Numbers.localizeFromInvariant(data));
},
"name": "value"
},
],
"columnDefs": [
{
"targets": [0, 1, 2, 3],
"className": 'table_alertHistory_issueType',
"width": "20%"
}
],
});

I neglected to RTFM. The fnServerParams callback is now legacy for versions 1.9 and earlier. In the latest version of DataTables, you leverage the ajax data parameter as described in the DataTables documentation. In the example below, appending mykey to the d object will do the trick:
$(document).ready(function() {
$('#example').DataTable( {
"processing": true,
"serverSide": true,
"ajax": {
"url": "scripts/server_processing.php",
"data": function ( d ) {
d.myKey = "myValue";
// d.custom = $('#myInput').val();
// etc
}
}
} );
} );

How to parse JSON received from Datatables ajax call?

I can successfully fill my datatable with ajax call, but then I don't know how to parse JSON that is received by datatable with this ajax call.
Here is my JavaScript code, that makes ajax call to the server and fills my datatable correctly:
$('#transactions').DataTable({
"processing": true,
"ajax": {
"url": "/transactions
},
"columns": [
{ "data": "car"},
{ "data": "card_number"},
{ "data": "invoice"},
{ "data": "status"}
]
});
This is the JSON object returned from the server:
{
"data": [
{
"car": 190,
"card_number": "6395637",
"invoice": 200,
"status": "success"
},
{
"car": 191,
"card_number": "9473650",
"invoice": 180,
"status": "success"
}
],
"balance": 7300
}
As you can see, the data parameter of the returned JSON object is used by the datatables function to fill by datatables, and now I want to parse the balance parameter, but I can't. How can i achieve this?

Something like this:
$('#transactions').dataTable({
"ajax" : {
"url" : "/transactions",
"dataSrc" : function (json) {
// manipulate your data (json)
...
// return the data that DataTables is to use to draw the table
return json.data;
}
}
});
Docs: https://datatables.net/reference/option/ajax.dataSrc

Don't use the url feature of DataTable, make the Ajax call yourself
$.getJSON('/transactions', function(response) {
$('#transactions').dataTable({
processing: true,
data: response.data,
columns: [
{ data: "car"},
{ data: "card_number"},
{ data: "invoice"},
{ data: "status"}
]
});
window.someGlobalOrWhatever = response.balance
});

Since DataTables 1.10, you may use the ajax.json() function: https://datatables.net/reference/api/ajax.json()
I have implemented it in the example code below.
$( document ).ready(function() {
$('#search-form').submit(function(e) {
e.preventDefault();
var table = $('#location-table').DataTable({
destroy: true,
ajax: "/locations.json",
columns: [
{ "data": "code" },
{ "data": "status" },
{ "data": "name" },
{ "data": "region" },
{ "data": "address" },
{ "data": "city" },
{ "data": "state" },
{ "data": "zip" },
{ "data": "phone_number" },
]
})
table.on( 'xhr', function () {
var json = table.ajax.json();
$('#totals').text(json.totals)
});
})
});
NOTE for this to work you must initialize the datatable with $('#location-table').DataTable() and not $('#location-table').dataTable (the difference being the capitalized D)