Doctrine 2 - Association table with additional properties & inheritance - symfony

Question

I'm just starting with Doctrine (no experience with ORMs so far) on my first Symfony2 project.
I have a pretty simple structure, but am not satisfied with how classes are generated.I looked for tutorials/related questions on stackoverflow, but I haven't found a comprehensive answer so far :
Let say I have 2 entities + an association table with additional properties :
User
- id: int
- name: string
- movies: UserMovie
Movie
- id: int
- name: string
- duration: int
UserMovie:
- user_id: int
- movie_id: int
- seen: bool
A user can have several movies / a movie can be owned by several users.
What I would like is to have the generated UserMovie class inheriting from Movie, so I can access movies properties from a UserMovie instance directly.
I'd like to get something like this as a result of the generation process:
class UserMovie extends Movie
{
protected $user; // User instance
protected $id; // inherited from Movie
protected $name; // inherited from Movie
protected $duration; // inherited from Movie
}
Is this even possible?
Is there some best practices in this case?
Not sure this is clear enough (as I said earlier, I'm pretty new to this), any help would be gladly appreciated :)

Answer 1

It is not clear enough :)
You should build
User hasMany UserMovies
Movie hasMany UserMovies
relations. That will allow you to do something like this
var_dump( $user->hasMovie($movie) ) ;
by doing
class User
{
public function hasMovie(Movie $movie)
{
foreach($this->usermovies as $m2m) {
if ( $m2m->getMovie() === $movie )
return true ;
}
return false ;
}
public function addMovie(Movie $movie)
{
if ( !$this->hasMovie($movie) ) {
$m2m = new UserMovie() ;
$m2m->setMovie($movie) ;
$m2m->setUser($this) ;
$this->usermovies->add($m2m) ;
}
}
}
or alike