Laravel渴望在其他表上加入join

Question

can i change this code to syntax of has_many or has_one or ... to write beautiful code?

\App\User::with(['books' => function ($query) {
    $query->join('locations','books.location_id','=','locations.id')
    ->select([
        'books.*',
        'locations.name as l_name'
    ]);
}])->get()

Class User:

public function books()
{
    return $this->hasMany(Book::class);
}

Answer 1

You should just have a Locations model which will have a relationship with Book model, and call it like this:

User::with('books.locations')->get();

This will give you the users with books and location of each book.

Answer 2

I think you can try this:

DB::table('users')
->select('books.*','locations.name as l_name')
->join('books','users.id','=','books.user_id')
->join('locations','books.id','=','locations.book_id')
->get();

Hope this help you!