Laravel SQL select and update model

Question

I try select from database and update values with model, but get error:

Call to undefined method stdClass::save()

My code:

$user = db::table('users')->where('name', 'John')->where('age', 30)->first();
if($user) {
    $user->name = 'Tom';
    $user->age = 31;
    $user->save();
}

i get this error:

Answer 1

If you want to use save() you have to build the query using an actual model. Currently you're just selecting something from the db without hydrating a model.

$user = User::where('name', 'John')->where('age', 30)->first();
if($user) {
    $user->name = 'Tom';
    $user->age = 31;
    $user->save();
}