laravel-crud-update

public function update(Request $request)
{
    //
    try {
        //code...
        $validator = Validator::make($request->all(), [
            'id' => 'required|numeric',
            'id_user' => 'required|numeric',
            'title' => 'required|max:255',
            'amount' => 'required|numeric|min:1',
            'type' => 'required|in:cr,db',
            'status' => 'required|in:0,1',
            'date' => 'required|date_format:Y-m-d'
        ]);

        if ($validator->fails()) {
            return $this->getResponse(406, $validator->errors()->first());
        }

        $transactions = Transactions::where('id', $request->id)->where('id_user', $request->id_user)->first();

        if ($transactions) {
            # code...
            if (isset($request->title)) $transactions->title = $request->title;
            if (isset($request->amount)) $transactions->amount = $request->amount;
            if (isset($request->type)) $transactions->type = $request->type;
            if (isset($request->status)) $transactions->status = $request->status;
            if (isset($request->date)) $transactions->date = $request->date;
            $transactions->save();

            return $this->getResponse(200);
        }
        else {
            return $this->getResponse(404);
        }
    } catch (\Throwable $th) {
        //throw $th;
        return $this->getResponse(500, $th);
    }
}