validate([ 'title' => 'required|string|max:255', ]); $task->subtasks()->create($data); return redirect()->back(); } public function update(Request $request, Subtask $subtask) { $data = $request->validate([ 'title' => 'sometimes|string|max:255', 'completed' => 'sometimes|boolean', ]); $subtask->update($data); return redirect()->back(); } public function destroy(Subtask $subtask) { $subtask->delete(); return redirect()->back(); } }