Bootstrap DataTable exclude certain visible columns from export - javascript

I can export dynamically selected visible columns to pdf with the following. However I want to be able to also exclude certain visible columns (button columns) too. How do I do this?
buttons: [{
extend: 'csv',
orientation: 'landscape',
pageSize: 'LEGAL',
text: 'Export as CSV',
exportOptions: {
columns: ':visible'
}
}, {
extend: 'pdfHtml5',
orientation: 'landscape',
pageSize: 'LEGAL',
text: 'Export as PDF',
exportOptions: {
columns: ':visible'
}, {
extend: 'colvis',
text: 'Show/Hide Columns'
}]

The key was to add a method to the columns property in the export options that filters if the column is visible and if the column is not part of the columns you do not want to export. The idx variable is the column index.
Working example here: https://jsfiddle.net/L06yu0vz/1/
$(document).ready(function() {
// Do not export these columns
var hideFromExport = [0,1,2];
var table = $('#example').DataTable({
dom: 'Bfrtip',
buttons: [{
extend: 'copyHtml5',
exportOptions: {
columns: function ( idx, data, node ) {
var isVisible = table.column( idx ).visible();
var isNotForExport = $.inArray( idx, hideFromExport ) !== -1;
return isVisible && !isNotForExport ? true : false;
}
}
}, 'colvis']
});
});

Related

Warning - DataTables warning: table id=example - Cannot reinitialise DataTable

I am trying to get data from .JSON file and filter it in realtime.
But I am getting Warnings as
DataTables warning: table id=example - Cannot reinitialise DataTable. For more information about this error, please see http://datatables.net/tn/3
As per instructions in above link I added retrieve: true, and paging: false, But still warnings are shown.
I am new for jscript and jquery so can you please help me to resolve this warning
main.js file
$(document).ready(function () {
var table = $('#example').DataTable({
retrieve: true,
paging: false,
ajax: {
url: './test.json',
dataSrc: '',
},
columns: [
{ data: 'Host' },
{ data: 'Category' },
{ data: 'Type' },
{ data: 'SSH' },
{ data: 'Status' },
{ data: 'Notes' },
],
mark: true,
dom: 'Bfrtip',
lengthMenu: [
[10, 25, 50, 100, -1],
['10 rows', '25 rows', '50 rows', '100 rows', 'Show All']
],
buttons: [
'pageLength',
{
extend: 'copyHtml5',
exportOptions: {
columns: ':visible'
}
},
{
extend: 'excelHtml5',
exportOptions: {
columns: ':visible'
}
},
{
extend: 'csvHtml5',
exportOptions: {
columns: ':visible'
}
},
{
extend: 'print',
exportOptions: {
columns: ':visible'
}
},
{
extend: 'pdfHtml5',
download: 'open',
exportOptions: {
columns: ':visible'
}
},
'colvis'
],
columDefs: [{
targets: -1,
visible: false
}],
});
$('#example tfoot th').each(function () {
var title = $('#example tfoot th').eq($(this).index()).text();
$(this).html('<input type="text" placeholder="Search ' + title + '" />');
});
table.columns().eq(0).each(function (colIdx) {
$('input', table.column(colIdx).footer()).on('keyup change', function () {
table
.column(colIdx)
.search(this.value)
.draw();
});
});
});

Ajax Datatable's Export Button only exporting visible data

I am using ajax datatable for showing data. I am having issue with the export button. What by default is happening is on click of button it is only exporting visible data but what i actually want is it should be exporting all the data (if filtered then that too).
Tried various export options as
dom: 'lfBrtip',
buttons: [
{
extend: 'copy',
exportOptions: {
columns: [ 0, ':visible' ]
}
},
{
extend: 'csv',
exportOptions: {
modifier: {
search: 'applied',
order: 'applied',
page: 'all'
}
}
},
{
extend: 'excel',
exportOptions: {
modifier: {
search: 'applied',
order: 'applied',
page: 'all'
}
}
},
'colvis'
],
But none of them seems to be working. Any help ??

Datatable does not print all my rows on scrolling

I am trying to get rows from back-end response on each scroll. I get
an AJAX response, but I can't get full row, it eats up the data
most probably the last one.
I tried with so other alternative, but it's not working at all, I tried redraw and reload in AJAX.
Here goes my js code:
var table= $('#subscriber_list').DataTable({
responsive: true,
"processing":true,
serverSide: true,
"scrollCollapse":true,
"sDom":"BifrtS",
scrollY:'35vh',
scrollCollapse: true,
paging:false,
"oScroller": {
"displayBuffer": 2,"loadingIndicator": true
},
"ajax": {"url": $('#data_table_column_list').attr("url"),"type": 'POST',"data":{'type':subscriber_type,'end_date_from':end_date_from,'end_date_to':end_date_to}},
"columns": JSON.parse($('#data_table_column_list').val().replace(/\'/g, '"')),
"columnDefs": [
{ "orderable": false, "targets": 2 }
],
buttons: [
{
extend: 'excelHtml5',
text: 'Export selected',
exportOptions: {
columns: ':visible:not(.not-exported)',
modifier: {
selected: true
}
},
title: 'Data export'
},
{
extend: 'excelHtml5',
text: 'Export All',
exportOptions: {
columns: ':visible:not(.not-exported)'
},
title: 'Data export'
}
]
});
You need one or both of the following depending on how you want the table to work.
Right now, it's getting cut off because the default in Datatables is 10 rows. You have paging set to false, so any results after the 10th are now shown.
Either switch this: paging:false,
to: paging:true,
That'll give you multiple pages of results with 10 on each page.
You can also add "pageLength": 50 or some other value if you want more than 10 rows per page.
here i am using same data table from multiple radio button switch, on switching i get warning from data table can't be re-initialised , since i know when i use table.destroy(); it destroy's all the object's created at while i switch the options, but have alternate to use it , what to do now ???? , running out of idea
i was referring this actually
https://datatables.net/manual/tech-notes/3
$('.subscriber_type').on('change',function (e){
var table = $('#subscriber_list').DataTable();
subscriber_data_table($(this).val(),$('#datepicker_from').val(),$('#datepicker_to').val());
});
subscriber_data_table("all",null,null);
function subscriber_data_table(subscriber_type,end_date_from,end_date_to) {
$('#subscriber_list').DataTable({
responsive: true,
"processing": true,
serverSide: true,
paging:true,
"pageLength":50,
"drawCallback": function( settings ) {
console.log( 'hit began' );
},
"sScrollY": "379",
"sDom":"BifrtS",
"oScroller": {
"displayBuffer": 2,"loadingIndicator": true
},
"ajax": {"url": $('#data_table_column_list').attr("url"),"type": 'POST',"data":{'type':subscriber_type,'end_date_from':end_date_from,'end_date_to':end_date_to}},
"columns": JSON.parse($('#data_table_column_list').val().replace(/\'/g, '"')),
"columnDefs": [
{ "orderable": false, "targets": 2 }
],
buttons: [
{
extend: 'excelHtml5',
text: 'Export selected',
exportOptions: {
columns: ':visible:not(.not-exported)',
modifier: {
selected: true
}
},
title: 'Data export'
},
{
extend: 'excelHtml5',
text: 'Export All',
exportOptions: {
columns: ':visible:not(.not-exported)'
},
title: 'Data export'
}
]
});
}

Creating more than one worksheet through datatable or javascript

My code is
<script>
$(document).ready(function() {
$('#datatableswwarend').DataTable( {
dom: 'Bfrtip',
buttons: [
{
extend: 'excel',
text: 'Download Report',
exportOptions: {
columns: ':visible'
}
},
'colvis',
'copy'
],
columnDefs: [
{
targets: '_all',
visible: true
}]
});
});
</script>
Above code is my current code, which enables the user to download data from a table saving it as an excel file. Using this current code, is there any way i could create another worksheet, renaming it, and manipulating the data that will be stored in the file?

Get Multiple Selected Row html data out of Datatables

I am using Datatables (datatables.net) successfully to display all the data I need. But I am having difficulty understanding how to pull out selected column data from a json object. I have failed to JSON.stringify the object, as well as attempt to access the properties of the object directly.
The use of the datatables allows the user to select multiple rows and a built in button will perform a submit action to my rails server. I currently cannot access the object to parse the data. I may need a loop and thats fine, but again, I am having difficulty understanding the library on multiple select.
I have successfully console.log the object and verified the data I want is present. I currently want the 1 index of Array[12] for n selected rows. I have figured out how to provide a count of the selected rows, so I can parse the object using the count as a loop limiter. But again my attempts have failed.
Console.log object:
[Array[12], Array[12], Array[12], context: Array[1], selector: Object, ajax: Object, colReorder: Object, keys: Object]
0:Array[12]0:""1:"36"2:
Code:
$(document).ready(function() {
$('.stay').DataTable( {
dom: "<'row'<'col-sm-8'B><'col-sm-4'f>>"+ 'rt' + "<'row'<'col-sm-6'i><'col-sm-6'p>>",
buttons: [
'selectNone',
'selectAll',
{
extend: 'selected',
text: 'Assign Rooms',
action: function ( e, dt, node, config ) {
var rows = dt.rows( { selected: true } ).count();
var selected_rows = dt.rows( {selected: true} ).data(0);
console.log(selected_rows);
url = window.location;
// index = url.indexOf("housekeeper")
// alert(index);
alert( 'There are '+rows+'(s) selected in the table' );
alert(selected_rows[0])
// $.ajax({
// url: "/BookCreate/?mdate="+mdate+"&phone="+phone,
// type: "post",
// data: values,
// success: function(){
// alert('Saved Successfully');
// },
// error:function(){
// alert('Error');
// }
// });
}
},
{
extend: 'colvis',
text: 'Columns',
autoClose: true,
},
{
extend: 'copy',
text: '<i class="fa fa-files-o"></i>',
exportOptions: {
columns: ':visible'
}
},
{
extend: 'excel',
text: '<i class="fa fa-file-excel-o"></i>',
exportOptions: {
columns: ':visible'
}
},
{
extend: 'csv',
text: '<i class="fa fa-file-code-o"></i>',
exportOptions: {
columns: ':visible'
}
},
{
extend: 'pdf',
text: '<i class="fa fa-file-pdf-o"></i>',
exportOptions: {
columns: ':visible'
}
},
{
extend: 'print',
text: '<i class="fa fa-print"></i>',
exportOptions: {
columns: ':visible'
}
},
],
columnDefs: [ {
visible: false
} ],
columnDefs: [ {
orderable: false,
className: 'select-checkbox',
targets: 0
} ],
select: {
style: 'os',
selector: 'td:first-child',
style: 'multi'
},
order: [[ 2, 'asc' ]]
} ).on( 'buttons-action', function ( e, buttonApi, dataTable, node, config ) {
// action put here
console.log( 'Button '+buttonApi.text()+' was activated' );
} );;
} );
So using datatables I was able to get the selected row count. From that I parse the object through a loop for the first row entries.
Finally I call on the reduced array for the position value that I want (in this case position 1 is my Record ID field, more if you want) and push it to a new array.
From that you submit to your traditional controller for processing.
Hope this helps those trying to pass selected Row Data
$(document).ready(function() {
$('.stay').DataTable( {
dom: "<'row'<'col-sm-8'B><'col-sm-4'f>>"+ 'rt' + "<'row'<'col-sm-6'i><'col-sm-6'p>>",
buttons: [
'selectNone',
'selectAll',
{
extend: 'selected',
text: 'Assign Rooms',
action: function ( e, dt, node, config ) {
var rows = dt.rows( { selected: true } ).count();
var selected_rows = dt.rows( {selected: true} ).data(0);
var selected_ids = [];
for (i=0; i < rows; i++) {
var reduced_object = selected_rows[i];
selected_ids.push(reduced_object[1]);
};
console.log(selected_ids);
url = window.location;
// index = url.indexOf("housekeeper")
// alert(index);
// alert( 'There are '+rows+'(s) selected in the table' );
// alert(selected_rows[0])
// $.ajax({
// url: "/BookCreate/?mdate="+mdate+"&phone="+phone,
// type: "post",
// data: values,
// success: function(){
// alert('Saved Successfully');
// },
// error:function(){
// alert('Error');
// }
// });
}
},
{
extend: 'colvis',
text: 'Columns',
autoClose: true,
},
{
extend: 'copy',
text: '<i class="fa fa-files-o"></i>',
exportOptions: {
columns: ':visible'
}
},
{
extend: 'excel',
text: '<i class="fa fa-file-excel-o"></i>',
exportOptions: {
columns: ':visible'
}
},
{
extend: 'csv',
text: '<i class="fa fa-file-code-o"></i>',
exportOptions: {
columns: ':visible'
}
},
{
extend: 'pdf',
text: '<i class="fa fa-file-pdf-o"></i>',
exportOptions: {
columns: ':visible'
}
},
{
extend: 'print',
text: '<i class="fa fa-print"></i>',
exportOptions: {
columns: ':visible'
}
},
],
columnDefs: [ {
visible: false
} ],
columnDefs: [ {
orderable: false,
className: 'select-checkbox',
targets: 0
} ],
select: {
style: 'os',
selector: 'td:first-child',
style: 'multi'
},
order: [[ 2, 'asc' ]]
} ).on( 'buttons-action', function ( e, buttonApi, dataTable, node, config ) {
// action put here
console.log( 'Button '+buttonApi.text()+' was activated' );
} );;
} );

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