增加 FreeSql.Extensions.BaseEntity 项目

Extensions/FreeSql.Extensions.BaseEntity/BaseEntity.cs

@@ -0,0 +1,71 @@
+using FreeSql;
+using FreeSql.DataAnnotations;
+using System;
+using System.Data;
+using System.Diagnostics;
+using System.Linq.Expressions;
+using System.Threading;
+using System.Threading.Tasks;
+
+/// <summary>
+/// 包括 CreateTime/UpdateTime/IsDeleted 的实体基类
+/// </summary>
+[Table(DisableSyncStructure = true)]
+public abstract class BaseEntity
+{
+    static IFreeSql _ormPriv;
+    /// <summary>
+    /// 全局 IFreeSql orm 对象
+    /// </summary>
+    public static IFreeSql Orm => _ormPriv ?? throw new Exception(@"使用前请初始化 BaseEntity.Initialization(new FreeSqlBuilder()
+.UseAutoSyncStructure(true)
+.UseConnectionString(DataType.Sqlite, ""data source=test.db;max pool size=5"")
+.Build());");
+
+    /// <summary>
+	/// 初始化BaseEntity
+	/// BaseEntity.Initialization(new FreeSqlBuilder()
+    /// <para></para>
+    /// .UseAutoSyncStructure(true)
+    /// <para></para>
+    /// .UseConnectionString(DataType.Sqlite, "data source=test.db;max pool size=5")
+    /// <para></para>
+    /// .Build());
+	/// </summary>
+	/// <param name="fsql">IFreeSql orm 对象</param>
+	public static void Initialization(IFreeSql fsql)
+    {
+        _ormPriv = fsql;
+        _ormPriv.Aop.CurdBefore += (s, e) => Trace.WriteLine(e.Sql + "\r\n");
+    }
+
+    /// <summary>
+    /// 创建时间
+    /// </summary>
+    public DateTime CreateTime { get; set; }
+    /// <summary>
+    /// 更新时间
+    /// </summary>
+    public DateTime UpdateTime { get; set; }
+    /// <summary>
+    /// 逻辑删除
+    /// </summary>
+    public bool IsDeleted { get; set; }
+
+    /// <summary>
+    /// 开启工作单元事务
+    /// </summary>
+    /// <returns></returns>
+    public static IUnitOfWork Begin() => Begin(null);
+    /// <summary>
+    /// 开启工作单元事务
+    /// </summary>
+    /// <param name="level">事务等级</param>
+    /// <returns></returns>
+    public static IUnitOfWork Begin(IsolationLevel? level)
+    {
+        var uow = Orm.CreateUnitOfWork();
+        uow.IsolationLevel = level;
+        return uow;
+    }
+}