using System.ComponentModel.DataAnnotations; using System.ComponentModel.DataAnnotations.Schema; namespace TWASys_App.DBModels { public class StorageArea { [Key] [DatabaseGenerated(DatabaseGeneratedOption.Identity)] public long IdStorage { get; set; } // PK (AUTO_INCREMENT nếu DB đang để vậy) public ulong? IdEmp { get; set; } = null; // FK -> Emp (nếu có) public DateTime CreateDate { get; set; } = DateTime.UtcNow; public double TotalSize { get; set; } = 0; // map FLOAT MySQL -> double public int Status { get; set; } = 0; } }