## v1.0.1 # 174 #170 #162

Extensions/FreeSql.Extensions.BaseEntity/Net40/BaseEntity.cs

@@ -0,0 +1,110 @@
+#if netcore
+#else
+
+using FreeSql;
+using FreeSql.DataAnnotations;
+using System;
+using System.Data;
+using System.Diagnostics;
+using System.Linq.Expressions;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace FreeSql
+{
+    /// <summary>
+    /// 包括 CreateTime/UpdateTime/IsDeleted、CRUD 方法、以及 ID 主键定义 的实体基类
+    /// <para></para>
+    /// 当 TKey 为 int/long 时，Id 主键被设为自增值主键
+    /// </summary>
+    /// <typeparam name="TEntity"></typeparam>
+    /// <typeparam name="TKey"></typeparam>
+    [Table(DisableSyncStructure = true)]
+    public abstract class BaseEntity<TEntity, TKey> : BaseEntity<TEntity> where TEntity : class
+    {
+        static BaseEntity()
+        {
+            var tkeyType = typeof(TKey)?.NullableTypeOrThis();
+            if (tkeyType == typeof(int) || tkeyType == typeof(long))
+                Orm.CodeFirst.ConfigEntity(typeof(TEntity),
+                    t => t.Property("Id").IsIdentity(true));
+        }
+
+        /// <summary>
+        /// 主键
+        /// </summary>
+        [Column(Position = 1)]
+        public virtual TKey Id { get; set; }
+
+        /// <summary>
+        /// 根据主键值获取数据
+        /// </summary>
+        /// <param name="id"></param>
+        /// <returns></returns>
+        public static TEntity Find(TKey id)
+        {
+            var item = Select.WhereDynamic(id).First();
+            (item as BaseEntity<TEntity>)?.Attach();
+            return item;
+        }
+    }
+
+    /// <summary>
+    /// 包括 CreateTime/UpdateTime/IsDeleted、以及 CRUD 异步和同步方法的实体基类
+    /// </summary>
+    /// <typeparam name="TEntity"></typeparam>
+    [Table(DisableSyncStructure = true)]
+    public abstract class BaseEntity<TEntity> : BaseEntityReadOnly<TEntity> where TEntity : class
+    {
+        bool DeletedPrivate(bool value)
+        {
+            if (this.Repository == null)
+                return Orm.Delete<TEntity>(this as TEntity)
+                    .ExecuteAffrows() == 1;
+
+            return this.Repository.Delete(this as TEntity) == 1;
+        }
+        /// <summary>
+        /// 删除数据
+        /// </summary>
+        /// <returns></returns>
+        public virtual bool Delete() => this.DeletedPrivate(true);
+
+        /// <summary>
+        /// 更新数据
+        /// </summary>
+        /// <returns></returns>
+        public virtual bool Update()
+        {
+            if (this.Repository == null)
+                return Orm.Update<TEntity>()
+                    .SetSource(this as TEntity).ExecuteAffrows() == 1;
+
+            return this.Repository.Update(this as TEntity) == 1;
+        }
+        /// <summary>
+        /// 插入数据
+        /// </summary>
+        public virtual TEntity Insert()
+        {
+            if (this.Repository == null)
+                this.Repository = Orm.GetRepository<TEntity>();
+
+            return this.Repository.Insert(this as TEntity);
+        }
+
+        /// <summary>
+        /// 更新或插入
+        /// </summary>
+        /// <returns></returns>
+        public virtual TEntity Save()
+        {
+            if (this.Repository == null)
+                this.Repository = Orm.GetRepository<TEntity>();
+
+            return this.Repository.InsertOrUpdate(this as TEntity);
+        }
+    }
+}
+
+#endif