Ellipsis renderer not working with mjoin?

peterbrowne

The following is not working for Ellipisis renderer on column 4 'unit outcome' which is using mjoin data. Not sure where the problem is though. The data from mjoin is wrapped in para tags. I can get ellipsis applied to other columns in this table no problem.

var table = $( '#unit_table' ).DataTable( {
                responsive: true,
                columnDefs: [ {
                    targets: 4,
                    render: $.fn.dataTable.render.ellipsis( 10, true )
                } ],
                ajax: "program_data/unit_data.php",
                dom: "Blfrtip",
                columns: [ {
                    data: "unit.unit_code"
                }, {
                    data: "unit.unit_name"
                }, {
                    data: "unit.points"
                }, {
                    data: "year.year_name"
                },{
                    data: "unit_outcome",
                    render: "[; ].unit_outcome"
                }, {
                    data: "unit.modified"
                }, {
                    data: "unit.modified_by"
                } ],
                select: {
                    style: 'os',
                    selector: 'td:first-child'
                },
                buttons: [ ]
            } );

kthorngren

You have

                columnDefs: [ {
                    targets: 4,
                    render: $.fn.dataTable.render.ellipsis( 10, true )
                } ],

And this in columns

                },{
                    data: "unit_outcome",
                    render: "[; ].unit_outcome"
                }, 

defined for column 4. I believe the columns definition has priority over the columnDefs when there are conflicts. Try moving the ellipsis renderer to the columns option.

Kevin

peterbrowne

Changing from columnDefs to columns makes no difference. In fact if I use columns and change the target to another column, no truncating occurs. So I don't think that Ellipsis works with columns.

kthorngren

Are you using the ellipsis renderer as described here?
https://datatables.net/manual/data/renderers#Custom-helpers

It works here defined in columns:
http://live.datatables.net/divimoqi/1/edit

Doesn't look like there the function uses a second parameter, ellipsis( 10, true ).

Kevin

peterbrowne

Thanks, but my column already has a render for mjoin. Can I use both render for mjoin and ellipsis for the one column?

colin

As Kevin said, they're clashing in the columns and columnDefs, so you need to put the logic into a single place.

Colin

peterbrowne

Can you provide an example using what I have provided?

kthorngren

Since you can't combine render functions in columns then I would updated the ellipsis renderer to do what I want. In the function use join(';') to join the array then return the string with ellipsis as needed. For example:
http://live.datatables.net/pajobipe/1/edit

Kevin

peterbrowne

Thanks.