backoffice/application/views/footer.php

<footer class="main-footer">
  <div class="pull-right hidden-xs">
    <b>Version</b> 2.0.0
  </div>
  <strong>Copyright &copy; <?php Date('Y'); ?> <a href="https://ilink-app.com">iLink World Corporation</a>.</strong> All rights
  reserved.
</footer>

</div>

<script>
	// Add remove loading class on body element based on Ajax request status
	$(document).on({
		ajaxStart: function () {
			$("body").addClass("loading");
		},
		ajaxStop: function () {
			$("body").removeClass("loading");
		}
	});

	// Export server side table
	function newexportaction(e, dt, button, config) {
		var self = this;
		var oldStart = dt.settings()[0]._iDisplayStart;
		dt.one('preXhr', function (e, s, data) {
			// Just this once, load all data from the server...
			data.start = 0;
			data.length = 2147483647;
			dt.one('preDraw', function (e, settings) {
				// Call the original action function
				if (button[0].className.indexOf('buttons-copy') >= 0) {
					$.fn.dataTable.ext.buttons.copyHtml5.action.call(self, e, dt, button, config);
				} else if (button[0].className.indexOf('buttons-excel') >= 0) {
					$.fn.dataTable.ext.buttons.excelHtml5.available(dt, config) ?
						$.fn.dataTable.ext.buttons.excelHtml5.action.call(self, e, dt, button, config) :
						$.fn.dataTable.ext.buttons.excelFlash.action.call(self, e, dt, button, config);
				} else if (button[0].className.indexOf('buttons-csv') >= 0) {
					$.fn.dataTable.ext.buttons.csvHtml5.available(dt, config) ?
						$.fn.dataTable.ext.buttons.csvHtml5.action.call(self, e, dt, button, config) :
						$.fn.dataTable.ext.buttons.csvFlash.action.call(self, e, dt, button, config);
				} else if (button[0].className.indexOf('buttons-pdf') >= 0) {
					$.fn.dataTable.ext.buttons.pdfHtml5.available(dt, config) ?
						$.fn.dataTable.ext.buttons.pdfHtml5.action.call(self, e, dt, button, config) :
						$.fn.dataTable.ext.buttons.pdfFlash.action.call(self, e, dt, button, config);
				} else if (button[0].className.indexOf('buttons-print') >= 0) {
					$.fn.dataTable.ext.buttons.print.action(e, dt, button, config);
				}
				dt.one('preXhr', function (e, s, data) {
					// DataTables thinks the first item displayed is index 0, but we're not drawing that.
					// Set the property to what it was before exporting.
					settings._iDisplayStart = oldStart;
					data.start = oldStart;
				});
				// Reload the grid with the original page. Otherwise, API functions like table.cell(this) don't work properly.
				setTimeout(dt.ajax.reload, 0);
				// Prevent rendering of the full data to the DOM
				return false;
			});
		});
		// Requery the server with the new one-time export settings
		dt.ajax.reload();
	}
</script>

</body>
</html>