Update .net core project

Src/Asp.NetCore2/SqlSugar/Abstract/DbMaintenanceProvider/Methods.cs

@@ -106,6 +106,16 @@ namespace SqlSugar
             var result=columns.Any(it => it.IsPrimarykey == true && it.DbColumnName.Equals(columnName, StringComparison.CurrentCultureIgnoreCase));
             return result;
         }
+        public virtual bool IsPrimaryKey(string tableName, string columnName,bool isCache=true)
+        {
+            columnName = this.SqlBuilder.GetNoTranslationColumnName(columnName);
+            var isAny = IsAnyTable(tableName, isCache);
+            Check.Exception(!isAny, string.Format("Table {0} does not exist", tableName));
+            var columns = GetColumnInfosByTableName(tableName,isCache);
+            if (columns.IsNullOrEmpty()) return false;
+            var result = columns.Any(it => it.IsPrimarykey == true && it.DbColumnName.Equals(columnName, StringComparison.CurrentCultureIgnoreCase));
+            return result;
+        }
         public virtual bool IsIdentity(string tableName, string columnName)
         {
             columnName = this.SqlBuilder.GetNoTranslationColumnName(columnName);

Src/Asp.NetCore2/SqlSugar/Abstract/SugarProvider/SqlSugarProvider.cs

@@ -1341,7 +1341,11 @@ namespace SqlSugar
         }
         #endregion
 
-        #region
+        #region Other
+        public SqlSugarClient CopyNew()
+        {
+            return new SqlSugarClient(UtilMethods.CopyConfig(this.Ado.Context.CurrentConnectionConfig));
+        }
         public void ThenMapper<T>(IEnumerable<T> list, Action<T> action)
         {
             MapperContext<T> result = new MapperContext<T>();

Src/Asp.NetCore2/SqlSugar/Abstract/SugarProvider/SqlSugarScopeProvider.cs

@@ -706,6 +706,10 @@ namespace SqlSugar
         {
             return ScopedContext.UpdateNav(datas);
         }
+        public SqlSugarClient CopyNew()
+        {
+            return new SqlSugarClient(UtilMethods.CopyConfig(this.Ado.Context.CurrentConnectionConfig));
+        }
         #endregion
     }
 }

Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/ResolveItems/OneToOneNavgateExpressionN.cs

@@ -55,6 +55,14 @@ namespace SqlSugar
             {
                 var shortName = item.ThisEntityInfo.DbTableName + i;
                 var pkColumn = item.ThisEntityInfo.Columns.FirstOrDefault(it => it.IsPrimarykey);
+                if (item.Nav.Name2.HasValue()) 
+                {
+                    var nav2NameColumn = item.ThisEntityInfo.Columns.FirstOrDefault(it => it.PropertyName==item.Nav.Name2);
+                    if (nav2NameColumn != null) 
+                    {
+                        pkColumn = nav2NameColumn;
+                    }
+                }
                 var navColum = item.ParentEntityInfo.Columns.FirstOrDefault(it => it.PropertyName == item.Nav.Name);
                 Check.ExceptionEasy(pkColumn == null, $"{item.ThisEntityInfo.EntityName} need PrimayKey", $"使用导航属性{item.ThisEntityInfo.EntityName} 缺少主键");
                 var on = $" {ToShortName(shortName)}.{queryable.SqlBuilder.GetTranslationColumnName(pkColumn.DbColumnName)}={ToShortName(formInfo.ThisEntityInfo.DbTableName + (i - 1))}.{queryable.SqlBuilder.GetTranslationColumnName(navColum.DbColumnName)}";

Src/Asp.NetCore2/SqlSugar/Interface/IDbMaintenance.cs

@@ -21,6 +21,7 @@ namespace SqlSugar
         bool IsAnyTable(string tableName, bool isCache = true);
         bool IsAnyColumn(string tableName, string column, bool isCache = true);
         bool IsPrimaryKey(string tableName, string column);
+        bool IsPrimaryKey(string tableName, string column,bool isCache=true);
         bool IsIdentity(string tableName, string column);
         bool IsAnyConstraint(string ConstraintName);
         bool IsAnySystemTablePermissions();

Src/Asp.NetCore2/SqlSugar/Interface/ISqlSugarClient.cs

@@ -44,6 +44,7 @@ namespace SqlSugar
         #endregion
 
         #region Other methods
+        SqlSugarClient CopyNew();
         T CreateContext<T>(bool isTran=true) where T : SugarUnitOfWork, new();
         SugarUnitOfWork CreateContext(bool isTran = true);
         SplitTableContext SplitHelper<T>() where T : class, new();

Src/Asp.NetCore2/SqlSugar/Realization/MySql/DbMaintenance/MySqlDbMaintenance.cs

@@ -308,7 +308,9 @@ namespace SqlSugar
             }
             var oldDatabaseName = this.Context.Ado.Connection.Database;
             var connection = this.Context.CurrentConnectionConfig.ConnectionString;
-            Check.Exception(Regex.Split(connection,oldDatabaseName).Length > 2, "The user name and password cannot be the same as the database name ");
+            Check.ExceptionEasy(Regex.Split(connection,oldDatabaseName).Length > 2
+                , "The user name and password cannot be the same as the database name ",
+                " 创建数据库失败, 请换一个库名，库名不能 password 或者 username 有重叠 ");
             connection = connection.Replace(oldDatabaseName, "mysql");
             var newDb = new SqlSugarClient(new ConnectionConfig()
             {

Src/Asp.NetCore2/SqlSugar/SqlSugarClient.cs

@@ -996,6 +996,10 @@ namespace SqlSugar
         #endregion
 
         #region Other method
+        public SqlSugarClient CopyNew()
+        {
+            return new SqlSugarClient(UtilMethods.CopyConfig(this.Ado.Context.CurrentConnectionConfig));
+        }
         public DateTime GetDate()
         {
             return this.Context.GetDate();

Src/Asp.NetCore2/SqlSugar/SqlSugarScope.cs

@@ -762,6 +762,9 @@ namespace SqlSugar
         {
             return ScopedContext.UpdateNav(datas);
         }
- 
+        public SqlSugarClient CopyNew() 
+        {
+            return new SqlSugarClient(UtilMethods.CopyConfig(this.Ado.Context.CurrentConnectionConfig));
+        }
     }
 }