From 56a27525c0bfa656cc65432f6fa09fdc3deeecae Mon Sep 17 00:00:00 2001
From: sunkaixuan <610262374@qq.com>
Date: Wed, 17 Aug 2022 21:07:47 +0800
Subject: [PATCH] Update  .net core project

---
 .../ExecuteNavProvider/UpdateNavOneToMany.cs  | 26 +++++++++++++++++++
 .../SqlSugar/Entities/DeleteNavOptions.cs     |  1 +
 2 files changed, 27 insertions(+)

diff --git a/Src/Asp.NetCore2/SqlSugar/Abstract/ExecuteNavProvider/UpdateNavOneToMany.cs b/Src/Asp.NetCore2/SqlSugar/Abstract/ExecuteNavProvider/UpdateNavOneToMany.cs
index 0c97314c5..31e17355c 100644
--- a/Src/Asp.NetCore2/SqlSugar/Abstract/ExecuteNavProvider/UpdateNavOneToMany.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Abstract/ExecuteNavProvider/UpdateNavOneToMany.cs
@@ -39,6 +39,7 @@ namespace SqlSugar
                 }
                 ids.Add(parentValue);
             }
+            DeleteMany(thisEntity, ids, thisFkColumn.DbColumnName);
             this._Context.Deleteable<object>()
                 .AS(thisEntity.DbTableName)
                 .In(thisFkColumn.DbColumnName, ids.Distinct().ToList()).ExecuteCommand();
@@ -48,6 +49,31 @@ namespace SqlSugar
             SetNewParent<TChild>(thisEntity, thisPkColumn);
         }
 
+        private void DeleteMany(EntityInfo thisEntity, List<object> ids,string fkName)
+        {
+            if (_Options == null||_Options.OneToManyDeleteAll==false) 
+            {
+                return;
+            }
+            var oneToManys = thisEntity.Columns.Where(it => it.Navigat != null && it.Navigat.NavigatType == NavigateType.OneToMany).ToList();
+            foreach (var oneToMany in oneToManys)
+            {
+                var fkFieldName = oneToMany.Navigat.Name2?? thisEntity.Columns.FirstOrDefault(it=>it.IsPrimarykey).PropertyName;
+                var fkDbColumnName = thisEntity.Columns.FirstOrDefault(it => it.PropertyName == fkFieldName).DbColumnName;
+                var fks= this._Context.Queryable<object>()
+                .AS(thisEntity.DbTableName)
+                .In(fkName, ids.Distinct().ToList()).Select(fkDbColumnName).ToDataTable().Rows.Cast<System.Data.DataRow>().Select(x=>x[0]).ToArray();
+
+                var type = oneToMany.PropertyInfo.PropertyType.GenericTypeArguments[0];
+                var entity = this._Context.EntityMaintenance.GetEntityInfo(type);
+                var id = oneToMany.Navigat.Name;
+                var column = entity.Columns.FirstOrDefault(it => it.PropertyName == id).DbColumnName;
+                this._Context.Deleteable<object>()
+                                                .AS(entity.DbTableName)
+                                                .In(column, fks.Distinct().ToList()).ExecuteCommand();
+            }
+        }
+
         private EntityColumnInfo GetParentPkColumn()
         {
             EntityColumnInfo parentPkColumn = _ParentPkColumn;
diff --git a/Src/Asp.NetCore2/SqlSugar/Entities/DeleteNavOptions.cs b/Src/Asp.NetCore2/SqlSugar/Entities/DeleteNavOptions.cs
index 8335ab6eb..401adc205 100644
--- a/Src/Asp.NetCore2/SqlSugar/Entities/DeleteNavOptions.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Entities/DeleteNavOptions.cs
@@ -15,6 +15,7 @@ namespace SqlSugar
     {
         public bool ManyToManyIsUpdateA { get; set; }
         public bool ManyToManyIsUpdateB { get; set; }
+        public bool OneToManyDeleteAll { get;  set; }
     }
 
     public class InsertNavOptions