Using a call-back function within datatables buttons extension - datatables

Question

I'm using jQuery Datatables buttons extension.
"buttons": [
{
extend: 'colvis', //column visibility
className: 'data_export_buttons'
},
{
extend: 'print',
className: 'data_export_buttons',
exportOptions: {
columns: ':visible'
}
},
{
extend: 'excel',
className: 'data_export_buttons',
exportOptions: {
columns: ':visible'
}
},
{
extend: 'csv',
className: 'data_export_buttons',
exportOptions: {
columns: ':visible'
}
},
{
extend: 'pdf',
className: 'data_export_buttons',
exportOptions: {
columns: ':visible'
}
}
]
Everything works, however, I would like to use the above code as a call-back function. So instead of repeating the same lines across all my tables (I have over 15), I would just call the function like this:
var table = $('#table').DataTable({
"paging": true,
"info": false,
"ordering": true,
"columnDefs": [
{ "targets": [0], "orderable": false}
],
export_data() // the call-back function for colvis and export button extensions
});
I have tried this but it didn't work. My table lost data.
Is there a way to achieve this?

Answer 1

Yep, you can't do a callback there, but a just as tidy way would be to create a variable, something like
myButtons = [
{
extend: 'colvis', //column visibility
className: 'data_export_buttons'
},
// snip
];
Then, when you create your tables:
var table = $('#table').DataTable({
"paging": true,
"info": false,
"ordering": true,
"columnDefs": [
{ "targets": [0], "orderable": false}
],
"buttons": myButtons
});