Hi i made relationship many-to-many and its working. I need make popularity so i want use groupBy and count with query. But i dont know how i can refer to relation table rent_car.
Controller:
public function popularityCar()
{
$total_raw = DB::raw('count(*) as total');
$cars = User::with('rentcar')
->where('rentcar')
->select('car_id', $total_raw)
->groupBy('car_id')
->get();
dump($cars);
echo $cars;
return view('user.popularityCar',['cars' => $cars]);
}
Model User;
public function rentcar()
{
return $this->belongsToMany(Cars::class,'rent_car','user_id','car_id')->withTimestamps()->withPivot('start', 'end');
}
Model Cars:
public function caruser()
{
return $this->belongsToMany(User::class,'rent_car','car_id','user_id');
}
So my question is how i can use groupBy and count with function "with". I trying found it and i made somethink like i showing in my controller.
Use withCount() method.
So your code can be like this:
$cars = User::with('rentcar')
->withCount('rentcar')
->where('rentcar_count', '>', 0)
->get();
Consider rentcar_count field in your select list now. Hope this helps.
Edited:
You're insisting to use group by
. So update the code above to something like this:
$cars = User::with('rentcar')
->select('car_id', \DB::raw('Count(car_id) as rentcar_count'))
->groupBy('car_id')
->having('rentcar_count', '>', 0)
->get();
After discussion :
This code works fine hopefully:
Cars::with('caruser')
->withCount('caruser')
->where('caruser_count', '>', 0)
->orderBy('caruser_count', 'DESC')
->take(5)
->get();
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