Add 1 field to batch update

Src/Asp.Net/SqlSugar/Abstract/SqlBuilderProvider/Entities.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SqlSugar 
+{
+    internal class ReSetValueBySqlExpListModel
+    {
+        public string DbColumnName { get; set; }
+        public string Sql { get; set; }
+    }
+}

Src/Asp.Net/SqlSugar/Abstract/SqlBuilderProvider/UpdateBuilder.cs

@@ -36,7 +36,8 @@ namespace SqlSugar
         public List<string> UpdateColumns { get; set; }
         public List<JoinQueryInfo> JoinInfos { get; set; }
         public  string ShortName { get; set; }
-
+        internal Dictionary<string, ReSetValueBySqlExpListModel> ReSetValueBySqlExpList { get;  set; }
+        public virtual string ReSetValueBySqlExpListType { get; set; }
         public virtual string SqlTemplate
         {
             get
@@ -423,6 +424,10 @@ namespace SqlSugar
             {
                 return LambdaExpressions.DbMehtods.GetDate();
             }
+            else if (this.ReSetValueBySqlExpListType!=null&&this.ReSetValueBySqlExpList != null && this.ReSetValueBySqlExpList.ContainsKey(columnInfo.PropertyName)) 
+            {
+                return this.ReSetValueBySqlExpList[columnInfo.PropertyName].Sql;
+            }
             else if (columnInfo.UpdateSql.HasValue())
             {
                 return columnInfo.UpdateSql;

Src/Asp.Net/SqlSugar/Abstract/UpdateProvider/UpdateableProvider.cs

@@ -360,6 +360,36 @@ namespace SqlSugar
             }
             return this;
         }
+
+        public IUpdateable<T> PublicSetColumns(Expression<Func<T, object>> filedNameExpression, Expression<Func<T, object>> ValueExpExpression) 
+        {
+            if (UpdateParameterIsNull == true)
+            {
+                return SetColumns(filedNameExpression, ValueExpExpression);
+            }
+            else
+            {
+                var name = ExpressionTool.GetMemberName(filedNameExpression);
+                if (name == null)
+                {
+                    Check.ExceptionEasy(filedNameExpression + " format error ", filedNameExpression + "参数格式错误");
+                }
+                var value = this.UpdateBuilder.GetExpressionValue(ValueExpExpression, ResolveExpressType.WhereSingle).GetResultString();
+                if (this.UpdateBuilder.ReSetValueBySqlExpList == null)
+                {
+                    this.UpdateBuilder.ReSetValueBySqlExpList = new Dictionary<string, ReSetValueBySqlExpListModel>();
+                }
+                if (!this.UpdateBuilder.ReSetValueBySqlExpList.ContainsKey(name))
+                {
+                    this.UpdateBuilder.ReSetValueBySqlExpList.Add(name, new ReSetValueBySqlExpListModel()
+                    {
+                        Sql = value,
+                        DbColumnName =this.SqlBuilder.GetTranslationColumnName(this.EntityInfo.Columns.First(it => it.PropertyName == name).DbColumnName)
+                    }); ;
+                }
+            }
+            return this;
+        }
         #endregion
 
         #region Update by object

Src/Asp.Net/SqlSugar/Interface/IUpdateable.cs

@@ -100,6 +100,7 @@ namespace SqlSugar
         IUpdateable<T> EnableDiffLogEvent(object businessData = null);
         IUpdateable<T> EnableDiffLogEventIF(bool isEnableDiffLog,object businessData = null);
         IUpdateable<T> ReSetValue(Action<T> setValueExpression);
+        IUpdateable<T> PublicSetColumns (Expression<Func<T,object>> filedNameExpression, Expression<Func<T, object>> ValueExpExpression);
         IUpdateable<T> RemoveDataCache();
         IUpdateable<T> RemoveDataCache(string likeString);
         IUpdateable<T> CallEntityMethod(Expression<Action<T>> method);

Src/Asp.Net/SqlSugar/Realization/SqlServer/SqlBuilder/SqlServerUpdateBuilder.cs

@@ -68,9 +68,26 @@ namespace SqlSugar
                 }
                 batchUpdateSql.AppendFormat(SqlTemplateJoin, updateTable, whereString);
             }
+            batchUpdateSql = GetBatchUpdateSql(batchUpdateSql);
             return batchUpdateSql.ToString();
         }
 
+        private StringBuilder GetBatchUpdateSql(StringBuilder batchUpdateSql)
+        {
+            if (ReSetValueBySqlExpListType == null && ReSetValueBySqlExpList != null)
+            {
+                var result = batchUpdateSql.ToString();
+                foreach (var item in ReSetValueBySqlExpList)
+                {
+                    var dbColumnName = item.Value.DbColumnName;
+                    result = result.Replace($"T.{dbColumnName}", item.Value.Sql.Replace(dbColumnName,"S."+ dbColumnName));
+                    batchUpdateSql = new StringBuilder(result);
+                }
+            }
+
+            return batchUpdateSql;
+        }
+
         private object GetValue(DbColumnInfo it)
         {
             if (it.SqlParameterDbType!=null&&it.SqlParameterDbType.Equals(System.Data.DbType.AnsiString))

Src/Asp.Net/SqlSugar/SqlSugar.csproj

@@ -140,6 +140,7 @@
     <Compile Include="Abstract\QueryableProvider\NavigatManager.cs" />
     <Compile Include="Abstract\SaveableProvider\StorageableMethodInfo.cs" />
     <Compile Include="Abstract\SaveableProvider\StorageableDataTable.cs" />
+    <Compile Include="Abstract\SqlBuilderProvider\Entities.cs" />
     <Compile Include="Abstract\SqlBuilderProvider\SqlBuilderProvider_Condition.cs" />
     <Compile Include="Abstract\SugarProvider\SqlSugarCoreProvider.cs" />
     <Compile Include="Abstract\DeleteProvider\DeleteMethodInfo.cs" />