0, 'amount' => 0 ]; public $timestamps = false; public function store() { return $this->belongsTo(Store::class, 'store_id'); } public function productSku() { return $this->belongsTo(\App\Models\ProductSku::class, 'product_sku_id'); } public function productSpu() { return $this->belongsTo(\App\Models\ProductSpu::class, 'product_spu_id'); } public function stockLogs() { return $this->hasMany(StockLog::class, 'product_sku_id', 'product_sku_id'); } public function stockLog() { return $this->hasOne(StockLog::class, 'product_sku_id', 'product_sku_id'); } }