Update TDengine

Src/Asp.NetCore2/SqlSugar.TDengineCore/TDengine/CodeFirst/TDengineCodeFirst.cs

@@ -18,7 +18,24 @@ namespace SqlSugar.TDengine
                 var tableName = GetTableName(entityInfo);
                 var dbColumns = this.Context.DbMaintenance.GetColumnInfosByTableName(tableName, false);
                 ConvertColumns(dbColumns);
+                var attr = entityInfo.Type.GetCustomAttribute<STableAttribute>();
                 var entityColumns = entityInfo.Columns.Where(it => it.IsIgnore == false).ToList();
+                if (attr != null && attr.Tag1 != null)
+                {
+                    entityColumns = entityInfo.Columns.Where(it => it.IsIgnore == false
+                    || it.DbColumnName?.ToLower() == attr.Tag1?.ToLower()
+                     || it.DbColumnName?.ToLower() == attr.Tag2?.ToLower()
+                      || it.DbColumnName?.ToLower() == attr.Tag3?.ToLower()
+                       || it.DbColumnName?.ToLower() == attr.Tag4?.ToLower()
+                  ).ToList();
+                    foreach (var item in entityColumns)
+                    {
+                        if (item.DbColumnName == null) 
+                        {
+                            item.DbColumnName = item.PropertyName;
+                        }
+                    }
+                }
                 var dropColumns = dbColumns
                                           .Where(dc => !entityColumns.Any(ec => dc.DbColumnName.Equals(ec.OldDbColumnName, StringComparison.CurrentCultureIgnoreCase)))
                                           .Where(dc => !entityColumns.Any(ec => dc.DbColumnName.Equals(ec.DbColumnName, StringComparison.CurrentCultureIgnoreCase)))

Src/Asp.NetCore2/SqlSugar.TDengineCore/TDengine/Insertable/TagInserttable.cs

@@ -0,0 +1,45 @@
+using SqlSugar.TDengine;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+
+namespace SqlSugar 
+{
+    public class TagInserttable<T> where T : class, new()
+    {
+        internal IInsertable<T> thisValue;
+        internal Func<string, T, string> getChildTableNamefunc;
+
+        public int ExecuteCommand()
+        {
+            var provider = (InsertableProvider<T>) thisValue;
+            var inserObjects = provider.InsertObjs;
+            var attr = typeof(T).GetCustomAttribute<STableAttribute>();
+            Check.ExceptionEasy(attr == null|| attr?.Tag1==null, $"", $"{nameof(T)}缺少特性STableAttribute和Tag1");
+            // 根据所有非空的 Tag 进行分组
+            var groups = inserObjects.GroupBy(it =>
+            {
+                // 动态生成分组键
+                var groupKey = new List<string>();
+
+                if (attr.Tag1 != null)
+                    groupKey.Add(it.GetType().GetProperty(attr.Tag1)?.GetValue(it)?.ToString());
+
+                if (attr.Tag2 != null)
+                    groupKey.Add(it.GetType().GetProperty(attr.Tag2)?.GetValue(it)?.ToString());
+
+                if (attr.Tag3 != null)
+                    groupKey.Add(it.GetType().GetProperty(attr.Tag3)?.GetValue(it)?.ToString());
+
+                if (attr.Tag4 != null)
+                    groupKey.Add(it.GetType().GetProperty(attr.Tag4)?.GetValue(it)?.ToString());
+
+                // 将非空的 Tag 值用下划线连接作为分组键
+                return string.Join("_", groupKey.Where(k => !string.IsNullOrEmpty(k)));
+            });
+            return inserObjects.Count();
+        }
+    }
+}

Src/Asp.NetCore2/SqlSugar.TDengineCore/Tools/UtilExtensions.cs

@@ -9,6 +9,13 @@ namespace SqlSugar.TDengine
     /// </summary>
     public static class UtilExtensions
     {
+        public static TagInserttable<T> SetTDengineChildTableName<T>(this IInsertable<T> thisValue,Func<string,T,string> getChildTableNamefunc) where T:class,new()
+        {
+            TagInserttable<T> result = new TagInserttable<T>();
+            result.thisValue = thisValue;
+            result.getChildTableNamefunc = getChildTableNamefunc;
+            return result;
+        }
         public static string ObjToStringNoTrim(this object thisValue)
         {
             if (thisValue != null) return thisValue.ToString();