在null上调用成员函数address（）

Question

I got an error:

Symfony \ Component \ Debug \ Exception \ FatalThrowableError (E_ERROR) Call to a member function address() on null

AddressController.php

public function store(Request $request)
    {
        $this->validate($request,[
            'fname'=>'required',
            'lname'=>'required',
            'addressline'=>'required',
            'city'=>'required',
            'phone'=>'required |regex:/^[0-9\-\+]{9,15}$/',

        ]);

        Auth::user()->address()->create($request->all());


        Order::createOrder();


        return redirect('/');
    }

Answer 1

As DevionNL said, this error message means that Auth::user() is null.

Therefore it is better to test this before calling the address() method:

if (!is_null(Auth::user())) {
    Auth::user()->address()->create($request->all());
} else {
    //handle the error
}