update

修改.md

@@ -33,7 +33,9 @@ dywhere 支持
 
 ## 1、更新指定列
 ```csharp
-var t1 = fsql.Update<Topic>(1).Set(a => a.CreateTime, DateTime.Now).ExecuteAffrows();
+fsql.Update<Topic>(1)
+  .Set(a => a.CreateTime, DateTime.Now)
+  .ExecuteAffrows();
 //UPDATE `tb_topic` SET `CreateTime` = '2018-12-08 00:04:59' 
 //WHERE (`Id` = 1)
 ```
@@ -41,14 +43,18 @@ var t1 = fsql.Update<Topic>(1).Set(a => a.CreateTime, DateTime.Now).ExecuteAffro
 > 支持 Set() 多次，相当于拼接
 
 ```csharp
-var t2 = fsql.Update<Topic>(1).Set(a => a.Clicks + 1).ExecuteAffrows();
+fsql.Update<Topic>(1)
+  .Set(a => a.Clicks + 1)
+  .ExecuteAffrows();
 //UPDATE `tb_topic` SET `Clicks` = ifnull(`Clicks`,0) + 1 
 //WHERE (`Id` = 1)
 
-var t2 = fsql.Update<Topic>(1).Set(a => new Topic {
+fsql.Update<Topic>(1).Set(a => new Topic
+  {
     Clicks = a.Clicks + 1,
     Time = DateTime.Now
-}).ExecuteAffrows();
+  })
+  .ExecuteAffrows();
 //UPDATE `tb_topic` SET `Clicks` = `Clicks` + 1, Time = now() 
 //WHERE (`Id` = 1)
 ```
@@ -56,37 +62,60 @@ var t2 = fsql.Update<Topic>(1).Set(a => new Topic {
 ## 2、更新实体
 ```csharp
 var item = new Topic { Id = 1, Title = "newtitle" };
-var t3 = fsql.Update<Topic>().SetSource(item).ExecuteAffrows();
+fsql.Update<Topic>()
+  .SetSource(item)
+  .ExecuteAffrows();
 //UPDATE `tb_topic` SET `Clicks` = ?p_0, `Title` = ?p_1, `CreateTime` = ?p_2 
 //WHERE (`Id` = 1)
 
-var t4 = fsql.Update<Topic>().SetSource(item).UpdateColumns(a => new { a.Title, a.CreateTime }).ExecuteAffrows();
+fsql.Update<Topic>()
+  .SetSource(item)
+  .UpdateColumns(a => new { a.Title, a.CreateTime })
+  .ExecuteAffrows();
 //UPDATE `tb_topic` SET `Title` = ?p_0, `CreateTime` = ?p_1 
 //WHERE (`Id` = 1)
-var t5 = fsql.Update<Topic>().SetSource(item).UpdateColumns(a => a.Title).ExecuteAffrows();
+fsql.Update<Topic>()
+  .SetSource(item)
+  .UpdateColumns(a => a.Title)
+  .ExecuteAffrows();
 //UPDATE `tb_topic` SET `Title` = ?p_0 
 //WHERE (`Id` = 1)
 
-var t4 = fsql.Update<Topic>().SetSource(item).IgnoreColumns(a => a.Clicks).ExecuteAffrows();
+fsql.Update<Topic>()
+  .SetSource(item)
+  .IgnoreColumns(a => a.Clicks)
+  .ExecuteAffrows();
 //UPDATE `tb_topic` SET `Title` = ?p_0, `CreateTime` = ?p_1 
 //WHERE (`Id` = 1)
-var t5 = fsql.Update<Topic>().SetSource(item).IgnoreColumns(a => new { a.Clicks, a.CreateTime }).ExecuteAffrows();
+fsql.Update<Topic>()
+  .SetSource(item)
+  .IgnoreColumns(a => new { a.Clicks, a.CreateTime })
+  .ExecuteAffrows();
 //UPDATE `tb_topic` SET `Title` = ?p_0 
 //WHERE (`Id` = 1)
 
 var items = new List<Topic>();
 for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100 });
-var t6 = fsql.Update<Topic>().SetSource(items).ExecuteAffrows();
+
+fsql.Update<Topic>()
+  .SetSource(items)
+  .ExecuteAffrows();
 //UPDATE `tb_topic` SET `Clicks` = CASE `Id` WHEN 1 THEN ?p_0 WHEN 2 THEN ?p_1 WHEN 3 THEN ?p_2 WHEN 4 THEN ?p_3 WHEN 5 THEN ?p_4 WHEN 6 THEN ?p_5 WHEN 7 THEN ?p_6 WHEN 8 THEN ?p_7 WHEN 9 THEN ?p_8 WHEN 10 THEN ?p_9 END, 
 //`Title` = CASE `Id` WHEN 1 THEN ?p_10 WHEN 2 THEN ?p_11 WHEN 3 THEN ?p_12 WHEN 4 THEN ?p_13 WHEN 5 THEN ?p_14 WHEN 6 THEN ?p_15 WHEN 7 THEN ?p_16 WHEN 8 THEN ?p_17 WHEN 9 THEN ?p_18 WHEN 10 THEN ?p_19 END, 
 //`CreateTime` = CASE `Id` WHEN 1 THEN ?p_20 WHEN 2 THEN ?p_21 WHEN 3 THEN ?p_22 WHEN 4 THEN ?p_23 WHEN 5 THEN ?p_24 WHEN 6 THEN ?p_25 WHEN 7 THEN ?p_26 WHEN 8 THEN ?p_27 WHEN 9 THEN ?p_28 WHEN 10 THEN ?p_29 END 
 //WHERE (`Id` IN (1,2,3,4,5,6,7,8,9,10))
 
-var t7 = fsql.Update<Topic>().SetSource(items).IgnoreColumns(a => new { a.Clicks, a.CreateTime }).ExecuteAffrows();
+fsql.Update<Topic>()
+  .SetSource(items)
+  .IgnoreColumns(a => new { a.Clicks, a.CreateTime })
+  .ExecuteAffrows();
 //UPDATE `tb_topic` SET `Title` = CASE `Id` WHEN 1 THEN ?p_0 WHEN 2 THEN ?p_1 WHEN 3 THEN ?p_2 WHEN 4 THEN ?p_3 WHEN 5 THEN ?p_4 WHEN 6 THEN ?p_5 WHEN 7 THEN ?p_6 WHEN 8 THEN ?p_7 WHEN 9 THEN ?p_8 WHEN 10 THEN ?p_9 END 
 //WHERE (`Id` IN (1,2,3,4,5,6,7,8,9,10))
 
-var t8 = fsql.Update<Topic>().SetSource(items).Set(a => a.CreateTime, DateTime.Now).ExecuteAffrows();
+fsql.Update<Topic>()
+  .SetSource(items)
+  .Set(a => a.CreateTime, DateTime.Now)
+  .ExecuteAffrows();
 //UPDATE `tb_topic` SET `CreateTime` = ?p_0 
 //WHERE (`Id` IN (1,2,3,4,5,6,7,8,9,10))
 ```
@@ -98,18 +127,39 @@ var t8 = fsql.Update<Topic>().SetSource(items).Set(a => a.CreateTime, DateTime.N
 > 除了上面介绍的 dywhere 构造参数外，还支持 Where lambda/sql 方法
 
 ```csharp
-var t9 = fsql.Update<Topic>().Set(a => a.Title, "新标题").Where(a => a.Id == 1).ExecuteAffrows();
+fsql.Update<Topic>()
+  .Set(a => a.Title, "新标题")
+  .Where(a => a.Id == 1)
+  .ExecuteAffrows();
 //UPDATE `tb_topic` SET Title = @title WHERE (Id = 1)
 ```
 
 ## 4、自定义SQL
 
 ```csharp
-var t10 = fsql.Update<Topic>().SetRaw("Title = @title", new { title = "新标题" }).Where("Id = @id", 1).ExecuteAffrows();
+fsql.Update<Topic>()
+  .SetRaw("Title = @title", new { title = "新标题" })
+  .Where("Id = @id", 1)
+  .ExecuteAffrows();
 //UPDATE `tb_topic` SET Title = @title WHERE (Id = @id)
 ```
 
-## 5、列优先级
+## 5、根据 Dto 更新
+
+```csharp
+fsql.Update<T>()
+  .SetDto(new { title = "xxx", clicks = 2 })
+  .Where(a => a.Id == 1)
+  .ExecuteAffrows();
+//UPDATE `tb_topic` SET `Title` = ?p_0, `Clicks` = ?p_1 WHERE (Id = 1)
+
+fsql.Update<T>()
+  .SetDto(new Dictionary<string, object> { ["title"] = "xxx", ["clicks"] = 2 })
+  .Where(a => a.Id == 1)
+  .ExecuteAffrows();
+```
+
+## 6、列优先级
 
 ```csharp
 > 全部列 < 指定列(Set/SetRaw) < 忽略列(IgnoreColumns)
@@ -121,7 +171,7 @@ var t10 = fsql.Update<Topic>().SetRaw("Title = @title", new { title = "新标题
 
 在使用 IgnoreColumns 的情况下，只有未被指定的列会保存；
 
-## 6、乐观锁
+## 7、乐观锁
 
 更新整个实体数据时，在并发情况下极容易造成旧数据将新的记录更新。
 
@@ -131,10 +181,13 @@ var t10 = fsql.Update<Topic>().SetRaw("Title = @title", new { title = "新标题
 
 > 适用 SetSource 更新，每次更新 version 的值都会增加 1
 
-## 7、悲观锁
+## 8、悲观锁
 
 ```csharp
-var user = fsql.Select<User>().ForUpdate(true).Where(a => a.Id == 1).ToOne();
+var user = fsql.Select<User>()
+  .ForUpdate(true)
+  .Where(a => a.Id == 1)
+  .ToOne();
 //SELECT ... FROM User a for update nowait
 ```
 
@@ -144,12 +197,15 @@ for update 在 Oracle/PostgreSQL/MySql 是通用的写法，我们对 SqlServer
 SELECT ... FROM [User] a With(UpdLock, RowLock, NoWait)
 ```
 
-## 8、ISelect.ToUpdate 高级更新
+## 9、ISelect.ToUpdate 高级更新
 
 默认 IUpdate 不支持导航对象，多表关联等。ISelect.ToUpdate 可将查询转为更新对象，以便支持导航对象或其他查询功能更新数据，如下：
 
 ```csharp
-fsql.Select<T1>().Where(a => a.Options.xxx == 1).ToUpdate().Set(a => a.Title, "111").ExecuteAffrows();
+fsql.Select<T1>().Where(a => a.Options.xxx == 1)
+  .ToUpdate()
+  .Set(a => a.Title, "111")
+  .ExecuteAffrows();
 ```
 注意：此方法不是将数据查询到内存再更新，上面的代码产生如下 SQL 执行：
 

更新日志.md

@@ -3,11 +3,13 @@
 
 ## v1.2.0-preview
 
-- 修复 ToList(a => new Dto {}) 这种情况按字段名匹配r问题，应该按属性名；#208
+- 修复 ToList(a => new Dto {}) 这种情况按字段名匹配r问题，应该按属性名；[#208](https://github.com/2881099/FreeSql/issues/208)
-- 增加 nuget 包强签名发布；#201
+- 增加 nuget 包强签名发布；[#201](https://github.com/2881099/FreeSql/issues/201)
 - 完善 IUpdate.SetSource 组合主键的数据更新单元测试；
 - 修复 Oracle 导航属性 表别名过长的问题；
-- 修复 DbSet.Where 表达式解析报错的问题；#216
+- 修复 DbSet.Where 表达式解析报错的问题；[#216](https://github.com/2881099/FreeSql/issues/216)
+- 修复 DbContext/Repository Update 不更新 DbUpdateValue 的问题；[#219](https://github.com/2881099/FreeSql/issues/219)
+- 增加 IUpdate.SetDto 根据 dto 更新的方法；[#218](https://github.com/2881099/FreeSql/issues/218)
 
 ## v1.1.0