'boolean', 'created_at' => 'datetime', 'updated_at' => 'datetime', ]; protected $dates = ['deleted_at']; protected function serializeDate(DateTimeInterface $date) { return $date->format('Y-m-d H:i:s'); } public function item() { return $this->morphTo('item', 'item_type', 'item_id'); } public function stockCards() { return $this->hasMany(StockCard::class, 'outlet_inventory_id'); } }