DataTables events don't work with data option - datatables

I'm using DataTables 1.11.3 and load data by ajax like this, and all events catchers work ok. But if I remove ajax option and put "data": ta_data, events don't work at all, no one. Then if I put by button 'cklick' ajax source and redraw events work again Events don't work with static load data from local variable data ?
$(document).ready(function(){
"use strict";
const ta_data = JSON.parse(ta).data;
let table_arch = $("#datatable-archive").DataTable({
"scrollY": '60vh',
"scrollX": false,
"paging": false,
"searching": false,
"info": false,
"order": [[ 10, "desc" ]],
"ajax": {
"url": 'rest/data/history/' + last_date,
"error": function(a,b,c){showErrorModal(a,b,c); offSpinner();}
},
})
.on( 'preDraw', function() {sp = {buy:0, sell:0, buyErr:0, sellErr:0};})
.on( 'draw.dt', function() {
$.when(offSpinner()).then(
function(){
gageMaker(sp, "Accuracy");
commonDonut();
}
)
});
});

It's necessary to change order. First set event catchers then initialize the table
const ta_data = JSON.parse(ta).data;
let table_arch = $("#datatable-archive"))
.on( 'draw.dt', function() {
$.when(offSpinner()).then(
function(){
gageMaker(sp, "Accuracy");
commonDonut();
}
)
}).DataTable({
"scrollY": '60vh',
"scrollX": false,
"paging": false,
"searching": false,
"info": false,
"order": [[ 10, "desc" ]],
"data" : ta_data
},
})

Related

Datatable returns all the data when server side is set to true

I have the following code where I want to use server side to lazy load my data. My goal is to display 10 records per page. The rest of the data should be loaded as and when the user clicks on a particular page.
What's happening now is that the datatable displays all the records at once. Can someone help me fix this issue?
var table = $("#members").DataTable({
"processing": true,
"serverSide": true,
paging: true,
"pagingType": "full_numbers",
"iDisplayLength": "10",
"length": "10",
ajax: {
url: "/api/members",
dataSrc: "",
},
columns: [
{
data: "cardNumber"
},
{
data: "registrationDate",
},
{
data: "fullName",
},
{
data: "address"
},
{
data: "phoneNumber"
},
{
data: "email"
}
]
});
Here's the API code:
// GET /api/members
public IEnumerable<MemberDto> GetMembers(string query = null)
{
var membersQuery = _context.Members.ToList();
if (!String.IsNullOrWhiteSpace(query))
membersQuery = membersQuery.Where(c => c.FullName.Contains(query.ToUpper())).ToList();
var memberDtos = membersQuery.ToList()
.Select(Mapper.Map<Member, MemberDto>);
return memberDtos;
}

Sort icon not changing in Datatable server side processing

When I use server side processing in datatable the sorting works but the sort icon does not change and stays in same direction. Below is the code snippet of my datatable configuration.
$('#dtSearchResult').DataTable({
"filter": false,
"pagingType": "simple_numbers",
"orderClasses": false,
"order": [[0, "asc"]],
"info": true,
"scrollY": "450px",
"scrollCollapse": true,
"bLengthChange": false,
"searching": true,
"bStateSave": false,
"bProcessing": true,
"bServerSide": true,
"sAjaxSource": VMCreateExtraction.AppSecurity.websiteNode() + "/api/Collection/SearchCustIndividual",
"fnServerData": function (sSource, aoData, fnCallback) {
aoData.push({ "name": "ccUid", "value": ccUid });
//Below i am getting the echo that i will be sending to Server side
var echo = null;
for (var i = 0; i < aoData.length; i++) {
switch (aoData[i].name) {
case 'sEcho':
echo = aoData[i].value;
break;
default:
break;
}
}
$.ajax({
"dataType": 'json',
"contentType": "application/json; charset=utf-8",
"type": "GET",
"url": sSource,
"data": aoData,
success: function (msg, a, b) {
$.unblockUI();
var mappedCusNames = $.map(msg.Table, function (Item) {
return new searchGridListObj(Item);
});
var data = {
"draw": echo,
"recordsTotal": msg.Table2[0].TOTAL_NUMBER_OF_RECORDS,
"recordsFiltered": msg.Table1[0].FILTERED_RECORDS,
"data": mappedCusNames
};
fnCallback(data);
$("#dtSearchResult").show();
ko.cleanNode($('#dtSearchResult')[0]);
ko.applyBindings(VMCreateExtraction, $('#dtSearchResult')[0]);
}
})
},
"aoColumns": [{
"mDataProp": "C_UID"
}, {
"mDataProp": "C_LAST_NAME"
}, {
"mDataProp": "C_FIRST_NAME"
}, {
"mDataProp": "C_USER_ID"
}, {
"mDataProp": "C_EMAIL"
}, {
"mDataProp": "C_COMPANY"
}],
"aoColumnDefs": [{ "defaultContent": "", "targets": "_all" },
//I create a link in 1 st column
]
});
There is some configuration that I am missing here. I read on datatable forums and the only issue highlighted by people was that draw should be same as what we send on server side.
For anyone looking for an answer to this. Sad but i had to write my own function as below:
function sortIconHandler(thArray, sortCol, sortDir) {
for (i = 0; i < thArray.length; i++) {
if (thArray[i].classList.contains('sorting_asc')) {
thArray[i].classList.remove('sorting_asc');
thArray[i].classList.add("sorting");
}
else if (thArray[i].classList.contains('sorting_desc')) {
thArray[i].classList.remove('sorting_desc');
thArray[i].classList.add("sorting");
}
if (i == sortCol) {
if (sortDir == 'asc') {
thArray[i].classList.remove('sorting');
thArray[i].classList.add("sorting_asc");
}
else {
thArray[i].classList.remove('sorting');
thArray[i].classList.add("sorting_desc");
}
}
}
}
tharrray-> The array of all row headers(You can just write a jquery selector for this).
sortCol->Column on which sort is clicked (Datatable param iSortCol_0)
sortDir -> Sorting direction (Datatable param sSortDir_0)
I know this is an old thread, but make sure you don't have an .off() somewhere associated with the tables capture group in jQuery. I had a click event that (for some reason) I attached an off function to.. Took me 3 days to find it.

In datatable more than 10 records show pagination otherwise not display pagination using datatables

In My website I am using data tables for display data. Now The issue is If there are 10 records than the default pagination is not display but when there are more than 10 records the pagination of data table should display.
This is how I initialize datatable
$(document).ready(function(){
$('#tbl_member').dataTable({
"iDisplayLength": 10,
"bAutoWidth": false,
"aoColumnDefs": [
{"bSortable": true, "aTargets": [0,2]}
]
});
});
This datatable code is when I done server side processing:-
var save_method;
var table;
$(document).ready(function() {
table = $('#table').DataTable({
oLanguage: {
sProcessing: "<img src='<?php echo base_url();?>assets/img/loader.gif'>"
},
"processing": true,
"serverSide": true,
// Load data for the table's content from an Ajax source
"ajax": {
"url": "<?php echo base_url();?>Technology/technology_list",
"type": "POST"
},
"columnDefs": [
{
"targets": [ -1 ],
"orderable": false,
},
],
});
});
Use bPaginate (old hungarian notation style) or paginate to turn pagination on or off. You can use expressions to determine the options :
$('#tbl_member').dataTable({
"bPaginate" : $('#tbl_member tbody tr').length>10,
"iDisplayLength": 10,
"bAutoWidth": false,
"aoColumnDefs": [
{"bSortable": true, "aTargets": [0,2]}
]
});
This works in both 1.9.x and 1.10.x versions of dataTables. Demo showing two tables with the one having less than 10 records, the other a lot more -> http://jsfiddle.net/t2xcfLap/3/
Hide pagination controls after an AJAX update. Assuming the JSON reponse is on the form
{
"draw": 1,
"recordsTotal": 3,
"recordsFiltered": 3,
"data": [
[...],
]
}
then
table.on('xhr', function(e, settings, json, xhr) {
if (json.recordsTotal<10) {
$("#example_paginate").hide();
$("#example_length").hide();
} else {
$("#example_paginate").show();
$("#example_length").show();
}
})
demo -> http://jsfiddle.net/yyo5231z/
The injected controls is named on the form <tableId>_length, <tableId>_paginate. So if your table have the id table, then the above should be $("#table_paginate").hide(); and so on.
The reason for the different approach compared to the first answer with a static table is, that you cannot change pagination on the fly without re-initialising the table.

datatables with fixedheader: row click function giving error on fixed cols

I have an on click function storing the row data in the console log
if you click on the first two columns, you'll notice the function returns undefined, however any of the unfrozen columns returns the data object
I know that this has todo with the fact that the fixedcolumns are created in a cloned table, i was wondering if there was any workaround to this?
// Server-side processing with object sourced data
var $table;
$(document).ready(function() {
$table = $('#example').DataTable( {
"processing": true,
"serverSide": true,
"ajax": "/ssp/objects.php",
dom: "<'row'<'col-md-6 'l><'col-md-6 pull-right'>r>t<'row'<'col-md-6'i><'col-md-6'p>>",
"columns": [
{ "data": "first_name" },
{ "data": "last_name" },
{ "data": "position" },
{ "data": "office" },
{ "data": "start_date" },
{ "data": "salary" }
],
scrollY: "600px",
scrollX: "100%",
scrollCollapse: true,
"pageLength": 5,
lengthMenu: [[5, 10, 25, 50 ], [5, 10, 25, 50]],
order: [[ 1, "asc" ]],
} );
new $.fn.dataTable.FixedColumns( $table, {
leftColumns: 2
} );
$table.on("click", "tr",function(){
var aData = $table.row( this ).data();
console.log( aData);
} );
} );
here is my example code in action
You can use fnGetPosition to get information about row index.
From the manual:
This function is functionally identical to fnGetPosition in
DataTables, taking the same parameter (TH, TD or TR node) and
returning exactly the the same information (data index information).
The difference between the two is that this method takes into account
the fixed columns in the table, so you can pass in nodes from the
master table, or the cloned tables and get the index position for the
data in the main table.
Your code needs to be modified as follows:
var fc = new $.fn.dataTable.FixedColumns( $table, {
leftColumns: 2
});
$table.on("click", "tr", function(){
var aData = $table.row(fc.fnGetPosition(this)).data();
console.log(aData);
});
See this example code for demonstration.

Getting undefined for fnGetData() in DataTables

What I want is to get row data when users click on the table's tbody but I keep getting undefined for these datatables functions.
Data comes from a node-mysql module. And for testing purposes, after the table is initialized and data's propertly arrived I've set:
"fnDrawCallback" : function() {
console.log('this:' + this);
console.log('oTable.fnGetData():' + oTable.fnGetData());
console.log('JSON.stringify(oTable.fnGetData():' + JSON.stringify(oTable.fnGetData()));
console.log('JSON.stringify(oTable.fnGetData():' + JSON.stringify(oTable.fnGetData()[0]));
console.log('oTable.fnGetData()[0]:' + oTable.fnGetData()[0]);
},
The result is this:
this:[object Object] tables_offline.js:40
oTable.fnGetData():[object Object],[object Object],[object Object] tables_offline.js:41
JSON.stringify(oTable.fnGetData():[{"id":1,"age":"23","vol":26227,"tlg":4.93,"r":18.15},{"id":2,"age":"13","vol":6378,"tlg":3.97,"r":16.76},{"id":3,"age":"54","vol":131626,"tlg":6.49,"r":11.1}] tables_offline.js:42
JSON.stringify(oTable.fnGetData()[0]:{"id":1,"age":"23","vol":26227,"tlg":4.93,"r":18.15} tables_offline.js:43
oTable.fnGetData()[0]:[object Object]
It's not an array... Maybe this is the weird thing.
I've tried debugging with chrome, setting
$('#myTable').on('click', 'tr', function(){
var oTable = $('#myTable').DataTable();
debugger;
});
And here's a screenshot of what's coming from the variable oTable. I'm not sure but shouldn't I be able to see the functions right there? I can't query something like oTable.fnGetData() 'cause it's undefined.
Let me know if you need something else from my side in order for you to help me.
EDIT
What I want basicaly is to get row data when users click on the table's tbody. I can't get there since oTable = $('#myTable').DataTable(); oTable.fnGetData()' throws undefined.
I'll try to clarify a bit more.
tables_offline.js is the file that loads the datatable, there I define my oTable variable. While searching for help I came across this post (I'm using mData for the columns definition) and I'm not sure if this is the case but it may help.
I make use of fnDrawCallback just for testing oTable in the console, it's not part of the original code.
var oTable = $("#myTable").dataTable({
'fnServerParams': function (aoData) {
aoData.push({ "name": "startDate", "value": startDate });
aoData.push({ "name": "endDate", "value": endDate });
},
'sAjaxSource': '/url',
'sAjaxDataProp': '',
'bProcessing': true,
'sDom':'t',
"aoColumns": [
{ "bVisible": false, "mDataProp": "pcrc_id"},
{ "sWidth": "25%","sTitle": "age", "mDataProp": "pcrc"},
{ "sWidth": "25%","sTitle": "Vol", "mDataProp": "volumen"},
{ "sWidth": "25%","sTitle": "tlg", "mDataProp": "tlg"},
{ "sWidth": "25%","sTitle": "r", "mDataProp": "reitero",
"mRender": function ( data, type, full ) {
return data + '%';
}
}
],
"oLanguage": {
"sUrl": "/javascripts/i18n/dataTables.Spanish.json"
},
"aaSorting": [[ 0, "desc" ]],
"bSort": false,
"bInfo" : false,
"bPaginate": false,
"fnDrawCallback" : function() {
console.log('this:' + this);
console.log('oTable.fnGetData():' + oTable.fnGetData());
console.log('JSON.stringify(oTable.fnGetData():' + JSON.stringify(oTable.fnGetData()));
console.log('JSON.stringify(oTable.fnGetData()[0]:' + JSON.stringify(oTable.fnGetData()[0]));
console.log('oTable.fnGetData()[0]:' + oTable.fnGetData()[0]);
},
"bFilter": false
});
EDIT 2
New screenshot after accesing oTable when a row's clicked. If I dig deep into context I see the data but it's the full thing, not just the row clicked. I'd like to use a function to get clicked row data.
Remove the fnDrawCallback stuff, I think it's distracting you from the actual problem.
Try this:
var oTable = $("#myTable").dataTable({
'fnServerParams': function (aoData) {
aoData.push({ "name": "startDate", "value": startDate });
aoData.push({ "name": "endDate", "value": endDate });
},
'sAjaxSource': '/url',
'sAjaxDataProp': '',
'bProcessing': true,
'sDom':'t',
"aoColumns": [
{ "bVisible": false, "mDataProp": "pcrc_id"},
{ "sWidth": "25%","sTitle": "age", "mDataProp": "pcrc"},
{ "sWidth": "25%","sTitle": "Vol", "mDataProp": "volumen"},
{ "sWidth": "25%","sTitle": "tlg", "mDataProp": "tlg"},
{ "sWidth": "25%","sTitle": "r", "mDataProp": "reitero",
"mRender": function ( data, type, full ) {
return data + '%';
}
}
],
"oLanguage": {
"sUrl": "/javascripts/i18n/dataTables.Spanish.json"
},
"aaSorting": [[ 0, "desc" ]],
"bSort": false,
"bInfo" : false,
"bPaginate": false,
"bFilter": false
});
oTable.$('tr').click( function () {
var data = oTable.fnGetData( this );
console.log(data);
} );
Note that the oTable var is still in scope so you don't need to use var oTable = $('#myTable').DataTable().
This example is copied verbatim from the Datatables API documentation