public function product()
    {
        return $this->belongsTo(Product::class);
    }

 public function product()
    {
        return $this->belongsTo(Product::class);
    }

   public function milyem()
    {
        return $this->hasOne(ProductHasMilyem::class, 'product_id');
    }
  

   public function milyem()
    {
        return $this->hasOne(ProductHasMilyem::class, 'product_id');
    }