luoqian 1ab9a90831 feat: 重构数据库迁移架构,支持多数据库提供程序 (SQLite/SQLServer/PostgreSQL/MySQL)
- 将迁移文件按数据库类型分目录存放 (Migrations/SQLite, MySQL, PostgreSQL, SqlServer)
- 新增各数据库提供程序的 DesignTimeDbContextFactory,支持 --provider 参数切换
- 新增 ProviderAppDataContexts,定义各数据库对应的 AppDataContext 子类
- DatabaseExtensions 增加 AddProviderAppDataContext 方法,按配置自动注册对应 DbContext
- 修正 MySQL 提供程序调用方式 (UseMySql -> UseMySQL)
- UserEntity 模型增加新字段
- 更新 add-migration.ps1
2026-05-20 16:40:57 +08:00

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using Microsoft.EntityFrameworkCore;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
namespace Avalonia_EFCore.Models
{
/// <summary>
/// 用户实体 —— 演示数据库 CRUD 操作。
/// </summary>
[Comment("用户实体,演示数据库 CRUD 操作")]
[Table("user")]
public class UserEntity
{
/// <summary>
/// 获取或设置用户主键 ID自增
/// </summary>
[Key]
[Comment("用户主键")]
[Column("id")]
[DatabaseGenerated(DatabaseGeneratedOption.Identity)]
public int Id { get; set; }
/// <summary>
/// 获取或设置用户名称。
/// </summary>
[Comment("用户名称")]
[Column("name")]
[MaxLength(100)]
public string? Name { get; set; }
/// <summary>
/// 获取或设置用户密码哈希值。
/// </summary>
[Comment("密码哈希值")]
[Column("password-hash")]
[MaxLength(200)]
public string? PasswordHash { get; set; }
/// <summary>
/// 获取或设置用户邮箱。
/// </summary>
[Comment("用户邮箱")]
[Column("email")]
[MaxLength(200)]
public string? Email { get; set; }
/// <summary>
/// 获取或设置用户电话号码。
/// </summary>
[Comment("电话号码")]
[Column("phone-number")]
[MaxLength(50)]
public string? PhoneNumber { get; set; }
/// <summary>
/// 获取或设置用户创建时间。
/// </summary>
[Comment("创建时间")]
[Column("created-at")]
public DateTime CreatedAt { get; set; } = DateTime.UtcNow;
/// <summary>
/// 获取或设置用户最后更新时间。
/// </summary>
[Comment("更新时间")]
[Column("updated-at")]
public DateTime UpdatedAt { get; set; } = DateTime.UtcNow;
}
}