Laravel DataTables search in column generated with DB::raw - laravel-5

Question

I have the following issue in Laravel DataTables (yajra/laravel-datatables
):
I can't search (filter) in a column generated with DB::Raw.
Also I can't search with Global search function.
In my Laravel Controller:
$inputs = Input_::join('companies', 'companies.id', '=', 'inputs.company_id')
->leftjoin('inputs_details', 'inputs_details.input_id', '=', 'inputs.id')
->select(array('inputs.id as id',
'inputs.created_at as created_at',
'inputs.updated_at as updated_at',
'inputs.input_at as input_at',
'companies.name',
'inputs.documents as documents',
DB::raw("SUM(inputs_details.quantity*inputs_details.price_input*(1+inputs_details.VAT/100)) as input_total")
))
->groupBy('inputs.id')
->orderBy('inputs.input_at', 'DESC');
return Datatables::of($inputs)
->remove_column('id')
->make(true);
In my View:
$('#inputs-table').DataTable({
processing : true,
serverSide : true,
ajax: '{{ URL::to('employee/inputs/data/') }}',
columns: [
{data: 'created_at', name: 'inputs.created_at', orderable: false},
{data: 'updated_at', name: 'inputs.updated_at', orderable: false},
{data: 'input_at', name: 'inputs.input_at', orderable: false},
{data: 'name', name: 'companies.name', orderable: false},
{data: 'documents', name: 'inputs.documents', orderable: false},
{data: 'input_total', name: 'input_total', orderable: false, searchable: true},
{data: 'reports', name: 'reports', orderable: false, searchable: false},
{data: 'actions', name: 'actions', orderable: false, searchable: false}
],
initComplete: function () {
this.api().columns().every(function () {
var column = this;
var input = document.createElement("input");
$(input).appendTo($(column.footer()).empty())
.on('change', function () {
var val = $.fn.dataTable.util.escapeRegex($(this).val());
column.search(val ? val : '', true, false).draw();
});
});
} });

Answer 1

You have to put the filterColumn action in your datatable.
$inputs = Input_::join('companies', 'companies.id', '=', 'inputs.company_id')
->leftjoin('inputs_details', 'inputs_details.input_id', '=', 'inputs.id')
->select(array('inputs.id as id',
'inputs.created_at as created_at',
'inputs.updated_at as updated_at',
'inputs.input_at as input_at',
'companies.name',
'inputs.documents as documents',
DB::raw("SUM(inputs_details.quantity*inputs_details.price_input*(1+inputs_details.VAT/100)) as input_total")
))
->groupBy('inputs.id')
->orderBy('inputs.input_at', 'DESC');
return Datatables::of($inputs)
->remove_column('id')
->filterColumn('input_total', function($query, $keyword) {
$query->whereRaw("SUM(inputs_details.quantity*inputs_details.price_input*(1+inputs_details.VAT/100)) = ?", $keyword);
})
->make(true);