| null */ protected ?array $sortColumns = []; protected ?Closure $sortQuery = null; /** * @param bool | array | Closure $condition */ public function sortable(bool | array | Closure $condition = true, ?Closure $query = null): static { if (is_array($condition)) { $this->isSortable = true; $this->sortColumns = $condition; } else { $this->isSortable = $condition; $this->sortColumns = null; } $this->sortQuery = $query; return $this; } /** * @return array */ public function getSortColumns(Model $record): array { return $this->sortColumns ?? $this->getDefaultSortColumns($record); } public function isSortable(): bool { return (bool) $this->evaluate($this->isSortable); } /** * @return array{0: string} */ public function getDefaultSortColumns(Model $record): array { return [$this->getFullAttributeName($record)]; } }