hasMany(OrderItem::class); } public function product(): BelongsTo { return $this->belongsTo(Product::class); } public function productPrices(): HasMany { return $this->hasMany(ProductPrice::class, 'variant_id'); } public function restockItems(): HasMany { return $this->hasMany(RestockItem::class); } public function retailStockHistories(): HasMany { return $this->hasMany(RetailStockHistory::class); } public function stokOpnameItems(): HasMany { return $this->hasMany(StokOpnameItem::class); } }