Laravel model belongs to current user and global user - php

Question

I have the following collections:
User
{
"id": 1,
"name": "Bob"
},
{
"id": 2,
"name": "Mary"
}
Stuff
{
"id": 1,
"user_id": 1,
"name": "Bob's stuff"
},
{
"id": 2,
"user_id": 2,
"name": "Mary's stuff"
},
{
"id": 3,
"user_id": 0,
"name": "Everyone's stuff"
},
{
"id": 4,
"user_id": null,
"name": "Global stuff"
}
... and the following models:
class User extends Eloquent {
public function stuff() {
return $this -> hasMany( 'Stuff' ) ;
}
}
class Stuff extends Eloquent {
public function user() {
return $this -> belongsTo( 'User' ) ;
}
}
How to I automatically add Everyone's stuff ( User.id == 0 ) and Global stuff ( User.id == null ) to everybody's model? In other words, if I was querying for Bob's stuff I wish to get the following:
{
"id": 1,
"user_id": 1,
"name": "Bob's stuff"
},
{
"id": 3,
"user_id": 0,
"name": "Everyone's stuff"
},
{
"id": 4,
"user_id": null,
"name": "Global stuff"
}

Answer 1

You can use this:
public function stuff() {
return $this->hasMany(Stuff::class)->orWhere('user_id', 0)->orWhereNull('user_id');
}
A disadvantage is that you can't just add other WHERE clauses:
$user->stuff()->where('foo', 'bar')->get(); // Doesn't work as expected.
As a consequence, eager loading doesn't work.