add navigate insert

Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/DeleteNavProvider.cs

@@ -11,6 +11,7 @@ namespace SqlSugar
     {
 
         public List<Root> Roots { get;  set; }
+        public SqlSugarProvider Context { get; internal set; }
 
         public DeleteNavProvider<Root,TChild> ThenInclude<TChild>(Expression<Func<T,TChild>> expression)
         {

Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/InsertNavProvider.cs

@@ -7,16 +7,78 @@ using System.Threading.Tasks;
 
 namespace SqlSugar 
 {
-    public class InsertNavProvider<Root,T>
+    public class InsertNavProvider<Root,T> where T : class,new() where Root:class,new()
     {
 
         public List<Root> Roots { get;  set; }
+        public object ParentList { get; set; }
+        public EntityInfo ParentEntity { get; set; }
+        public SqlSugarProvider Context { get;   set; }
 
-        public InsertNavProvider<Root,TChild> ThenInclude<TChild>(Expression<Func<T,TChild>> expression)
+        public InsertNavProvider<Root,TChild> ThenInclude<TChild>(Expression<Func<T,TChild>> expression) where TChild : class, new()
         {
+            if (ParentList == null) 
+            {
+                ParentList = GetParentList(Roots);
+            }
+            var name=ExpressionTool.GetMemberName(expression);
+            var nav = this.ParentEntity.Columns.FirstOrDefault(x => x.PropertyName == name);
+            if (nav.Navigat == null) 
+            {
+                Check.ExceptionEasy($"{name} no navigate attribute", $"{this.ParentEntity.EntityName}的属性{name}没有导航属性");
+            }
+            if (nav.Navigat.NavigatType == NavigateType.OneToOne || nav.Navigat.NavigatType == NavigateType.ManyToOne)
+            {
+                InsertOneToOne();
+            }
+            else if (nav.Navigat.NavigatType == NavigateType.OneToMany)
+            {
+                InsertOneToMany();
+            }
+            else 
+            {
+                InsertManyToMany();
+            }
             return null;
         }
 
+        private void InsertManyToMany()
+        {
+             
+        }
+
+        private void InsertOneToMany()
+        {
+       
+        }
+
+        private void InsertOneToOne()
+        {
+            
+        }
+
+        private List<Type> GetParentList<Type>(List<Type> datas) where Type : class ,new()
+        {
+            List<Type> result = new List<Type>();
+            this.Context.InitMappingInfo<Type>();
+            var entity = this.Context.EntityMaintenance.GetEntityInfo<Type>();
+            var isIdentity = entity.Columns.Where(it=>it.IsIdentity).Any();
+            if (isIdentity)
+            {
+                foreach (var item in datas)
+                {
+                    this.Context.Insertable(datas).ExecuteCommandIdentityIntoEntity();
+                }
+            }
+            else 
+            {
+                this.Context.Insertable(datas).ExecuteCommand();
+            }
+            this.ParentEntity = entity;
+            result = datas;
+            return result;
+        }
+
         public InsertNavProvider<Root,Root> AsNav()
         {
             return null;

Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/UpdateInsert.cs

@@ -11,6 +11,7 @@ namespace SqlSugar
     {
 
         public List<Root> Roots { get;  set; }
+        public SqlSugarProvider Context { get; internal set; }
 
         public UpdateNavProvider<Root,TChild> ThenInclude<TChild>(Expression<Func<T,TChild>> expression)
         {

Src/Asp.Net/SqlSugar/Abstract/SugarProvider/SqlSugarProvider.cs

@@ -890,14 +890,15 @@ namespace SqlSugar
         #endregion
 
         #region  Nav CUD
-        public InsertNavProvider<T, T> InsertNav<T>(T data)
+        public InsertNavProvider<T, T> InsertNav<T>(T data) where T : class, new()
         {
             return InsertNav(new List<T>() { data });
         }
-        public InsertNavProvider<T, T> InsertNav<T>(List<T> datas)
+        public InsertNavProvider<T, T> InsertNav<T>(List<T> datas) where T : class, new()
         {
             var result = new InsertNavProvider<T, T>();
             result.Roots = datas;
+            result.Context = this;
             return result;
         }
         public DeleteNavProvider<T, T> DeleteNav<T>(T data)
@@ -908,6 +909,7 @@ namespace SqlSugar
         {
             var result = new DeleteNavProvider<T, T>();
             result.Roots = datas;
+            result.Context = this;
             return result;
         }
         public UpdateNavProvider<T, T> UpdateNav<T>(T data)
@@ -918,6 +920,7 @@ namespace SqlSugar
         {
             var result = new UpdateNavProvider<T, T>();
             result.Roots = datas;
+            result.Context = this;
             return result;
         }
         #endregion

Src/Asp.Net/SqlSugar/Abstract/SugarProvider/SqlSugarScopeProvider.cs

@@ -678,11 +678,11 @@ namespace SqlSugar
         {
             return ScopedContext.Saveable(saveObject);
         }
-        public InsertNavProvider<T, T> InsertNav<T>(T data)
+        public InsertNavProvider<T, T> InsertNav<T>(T data) where T : class, new()
         {
             return ScopedContext.InsertNav(data);
         }
-        public InsertNavProvider<T, T> InsertNav<T>(List<T> datas)
+        public InsertNavProvider<T, T> InsertNav<T>(List<T> datas) where T : class, new()
         {
             return ScopedContext.InsertNav(datas);
         }

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

@@ -203,8 +203,8 @@ namespace SqlSugar
         #endregion
 
         #region  Nav CUD
-        InsertNavProvider<T, T> InsertNav<T>(T data);
+        InsertNavProvider<T, T> InsertNav<T>(T data) where T : class, new();
-        InsertNavProvider<T, T> InsertNav<T>(List<T> datas);
+        InsertNavProvider<T, T> InsertNav<T>(List<T> datas) where T : class, new();
         DeleteNavProvider<T, T> DeleteNav<T>(T data);
         DeleteNavProvider<T, T> DeleteNav<T>(List<T> datas);
         UpdateNavProvider<T, T> UpdateNav<T>(T data);

Src/Asp.Net/SqlSugar/SqlSugarClient.cs

@@ -154,11 +154,11 @@ namespace SqlSugar
         #region Queryable
 
         #region  Nav CUD
-        public InsertNavProvider<T, T> InsertNav<T>(T data)
+        public InsertNavProvider<T, T> InsertNav<T>(T data) where T : class, new()
         {
             return  this.Context.InsertNav(data);
         }
-        public InsertNavProvider<T, T> InsertNav<T>(List<T> datas)
+        public InsertNavProvider<T, T> InsertNav<T>(List<T> datas) where T : class, new()
         {
             return this.Context.InsertNav(datas);
         }

Src/Asp.Net/SqlSugar/SqlSugarScope.cs

@@ -730,11 +730,11 @@ namespace SqlSugar
             return ScopedContext.DeleteableWithAttr<T>(deleteObjs);
         }
  
-        public InsertNavProvider<T, T> InsertNav<T>(T data)
+        public InsertNavProvider<T, T> InsertNav<T>(T data) where T : class, new()
         {
             return ScopedContext.InsertNav(data);
         }
-        public InsertNavProvider<T, T> InsertNav<T>(List<T> datas)
+        public InsertNavProvider<T, T> InsertNav<T>(List<T> datas) where T : class, new()
         {
             return ScopedContext.InsertNav(datas);
         }