yajra / laravel-datatables

                    $callback($builder, $keyword);

                    $query->addNestedWhereQuery($builder, 'or');

                } else {

                    if (count(explode('.', $columnName)) > 1) {

                        $eagerLoads     = $this->getEagerLoads();

                        $parts          = explode('.', $columnName);

                        $relationColumn = array_pop($parts);

                        $relation       = implode('.', $parts);

                        if (in_array($relation, $eagerLoads)) {

                            $this->compileRelationSearch(

                                $query,

                                $relation,

                                $relationColumn,

                                $keyword

                            );

                        } else {

                            $this->compileQuerySearch($query, $columnName, $keyword);

                        }

                    } else {

                        $this->compileQuerySearch($query, $columnName, $keyword);

                    }

                }

                $this->isFilterApplied = true;

                $builder  = $this->query->newQuery();

                $callback($builder, $keyword);

                $this->query->addNestedWhereQuery($builder);

            } else {

                if (count(explode('.', $column)) > 1) {

                    $eagerLoads     = $this->getEagerLoads();

                    $parts          = explode('.', $column);

                    $relationColumn = array_pop($parts);

                    $relation       = implode('.', $parts);

                    if (in_array($relation, $eagerLoads)) {

                        $column = $this->joinEagerLoadedColumn($relation, $relationColumn);

                    }

                }

                $keyword = $this->getColumnSearchKeyword($index);

                $this->compileColumnSearch($index, $column, $keyword);

            }

            $this->isFilterApplied = true;

        }