Laravel 5 Eloquent multiple relationships with multiple wheres

Question

I have 2 tables: Calendar and User . Calendar has a one to many relation to User and User has a relation with itself via parentID :

//model Calendar.php
    public function users()
    {
        return $this->belongsTo(User::class,'userID');
    }
//model User.php
    public function parent()
    {
        return $this->belongsTo(self::class,'parentID','id');
    }

I already select it like I want but I want to add:

where('users.parent.parentID',$userID)->orWhere('users.parent.parentID',$userID);

but I don't think it will work. I tried to join, but I don't know how. I've tried:

$calendar = calendar::with('users','users.parent')->get()->where('users.parent.parentID',$userID);

and

$calendar = calendar::with('users','users.parent')->get()->where('users.parentID',$userID);

Answer 1

Calendar::with('users')
        ->whereHas('users', function($query) use ($userID) {
        $query->where('parentID', $userID)->orWhereHas('parent', function($query) use ($userID) {
            $query->where('parentID', $userID);
        });
    })->get();

This will load you all users that have parentID equal $userID OR users which parent have the same condition. For loading relation you have to use with function, for filtering relation use callback inside it, for filtering relation owner use functions whereHas or orWhereHas .

Answer 2

Try

$calendar = Calendar::with('users')
                    ->with(['users.parent' => function($q) use ($userID){
                               $q->where('parentID',$userID);
                           }])
                    ->get();

More information about relationship eager-loading constraints here: http://laravel.com/docs/5.1/eloquent-relationships#constraining-eager-loads