Update MySqlConnector

Src/Asp.Net/SqlSugar.MySqlConnector/MySql/DbMaintenance/MySqlDbMaintenance.cs

@@ -34,7 +34,8 @@ namespace SqlSugar.MySqlConnector
                                     CASE WHEN is_nullable = 'YES'
                                     THEN true ELSE false END AS `IsNullable`,
                                     numeric_scale as Scale,
-                                    numeric_scale as DecimalDigits
+                                    numeric_scale as DecimalDigits,
+                                    LOCATE(  'unsigned',COLUMN_type   ) >0  as IsUnsigned
                                     FROM
                                     Information_schema.columns where TABLE_NAME='{0}' and  TABLE_SCHEMA=(select database()) ORDER BY ordinal_position";
                 return sql;
@@ -274,6 +275,23 @@ namespace SqlSugar.MySqlConnector
         #endregion
 
         #region Methods
+        public override bool IsAnyColumnRemark(string columnName, string tableName)
+        {
+            var isAny=this.Context.DbMaintenance.GetColumnInfosByTableName(tableName, false)
+                .Any(it => it.ColumnDescription.HasValue() && it.DbColumnName.ToLower()==columnName.ToLower());
+            return isAny;
+        }
+        public override bool AddColumnRemark(string columnName, string tableName, string description)
+        {
+            //base.AddColumnRemark(columnName, tableName, description);
+            var message= @"db.DbMaintenance.UpdateColumn(""tablename"", new DbColumnInfo()
+            {{
+                DataType = ""VARCHAR(30) NOT NULL COMMENT 'xxxxx'"",
+                DbColumnName = ""columnname""
+            }})" ;
+            Check.Exception(true,"MySql no support AddColumnRemark , use " + message);
+            return true;
+        }
         /// <summary>
         ///by current connection string
         /// </summary>

Src/Asp.Net/SqlSugar.MySqlConnector/MySql/SqlBuilder/MySqlFastBuilder.cs

@@ -8,7 +8,7 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 
-namespace SqlSugar.MySqlConnector 
+namespace SqlSugar.MySqlConnector
 {
    
     public class MySqlFastBuilder:FastBuilder,IFastBuilder
@@ -44,7 +44,7 @@ namespace SqlSugar.MySqlConnector
                     TableName = dt.TableName,
                     Local = true,
                 };
-                if (this.CharacterSet.HasValue())
+                if (this.CharacterSet.HasValue()) 
                 {
                     bulk.CharacterSet = this.CharacterSet;
                 }
@@ -58,7 +58,14 @@ namespace SqlSugar.MySqlConnector
             }
             catch (MySqlException ex)
             {
-                throw ex;
+                if (ex.Message == "The used command is not allowed with this MySQL version")
+                {
+                    Check.ExceptionEasy("connection string add : AllowLoadLocalInfile=true", "BulkCopy MySql连接字符串需要添加 AllowLoadLocalInfile=true; 添加后如果还不行Mysql数据库执行一下 SET GLOBAL local_infile=1 ");
+                }
+                else
+                {
+                    throw ex;
+                }
             }
             finally
             {

Src/Asp.Net/SqlSugar.MySqlConnector/MySql/SqlBuilder/MySqlInsertBuilder.cs

@@ -27,7 +27,8 @@ namespace SqlSugar.MySqlConnector
                 }
             }
         }
-        public override object FormatValue(object value)
+        int i = 0;
+        public  object FormatValue(object value,string name)
         {
             var n = "N";
             if (this.Context.CurrentConnectionConfig.MoreSettings != null && this.Context.CurrentConnectionConfig.MoreSettings.DisableNvarchar)
@@ -44,9 +45,9 @@ namespace SqlSugar.MySqlConnector
                 if (type == UtilConstants.DateType)
                 {
                     var date = value.ObjToDate();
-                    if (date < Convert.ToDateTime("1900-1-1"))
+                    if (date < UtilMethods.GetMinDate(this.Context.CurrentConnectionConfig))
                     {
-                        date = Convert.ToDateTime("1900-1-1");
+                        date = UtilMethods.GetMinDate(this.Context.CurrentConnectionConfig);
                     }
                     return "'" + date.ToString("yyyy-MM-dd HH:mm:ss.fff") + "'";
                 }
@@ -72,7 +73,10 @@ namespace SqlSugar.MySqlConnector
                 }
                 else if (type == UtilConstants.StringType || type == UtilConstants.ObjType)
                 {
-                    return n+"'" + GetString(value).ToSqlFilter() + "'";
+                    ++i;
+                    var parameterName = this.Builder.SqlParameterKeyWord + name + i;
+                    this.Parameters.Add(new SugarParameter(parameterName, value));
+                    return parameterName;
                 }
                 else
                 {
@@ -102,6 +106,7 @@ namespace SqlSugar.MySqlConnector
             if (isSingle)
             {
                 string columnParametersString = string.Join(",", this.DbColumnInfoList.Select(it => Builder.SqlParameterKeyWord + it.DbColumnName));
+                ActionMinDate();
                 return string.Format(SqlTemplate, GetTableNameString, columnsString, columnParametersString);
             }
             else
@@ -115,7 +120,7 @@ namespace SqlSugar.MySqlConnector
                 foreach (var item in groupList)
                 {
                     batchInsetrSql.Append("(");
-                    insertColumns = string.Join(",", item.Select(it => FormatValue(it.Value)));
+                    insertColumns = string.Join(",", item.Select(it => FormatValue(it.Value,it.PropertyName)));
                     batchInsetrSql.Append(insertColumns);
                     if (groupList.Last() == item)
                     {

Src/Asp.Net/SqlSugar.MySqlConnector/MySql/SqlBuilder/MySqlUpdateBuilder.cs

@@ -59,7 +59,7 @@ namespace SqlSugar.MySqlConnector
                     {
                         updateTable.Append(SqlTemplateBatchUnion);
                     }
-                    updateTable.Append("\r\n SELECT " + string.Join(",", columns.Select(it => string.Format(SqlTemplateBatchSelect, FormatValue(it.Value),this.Builder.GetTranslationColumnName(it.DbColumnName)))));
+                    updateTable.Append("\r\n SELECT " + string.Join(",", columns.Select(it => string.Format(SqlTemplateBatchSelect, FormatValue(it.Value,it.PropertyName),this.Builder.GetTranslationColumnName(it.DbColumnName)))));
                     ++i;
                 }
                 pageIndex++;
@@ -89,7 +89,8 @@ namespace SqlSugar.MySqlConnector
             }
             return batchUpdateSql.ToString();
         }
-        public override object FormatValue(object value)
+        int i = 0;
+        public  object FormatValue(object value,string name)
         {
             var n = "N";
             if (this.Context.CurrentConnectionConfig.MoreSettings != null&&this.Context.CurrentConnectionConfig.MoreSettings.DisableNvarchar)
@@ -106,9 +107,9 @@ namespace SqlSugar.MySqlConnector
                 if (type == UtilConstants.DateType)
                 {
                     var date = value.ObjToDate();
-                    if (date < Convert.ToDateTime("1900-1-1"))
+                    if (date < UtilMethods.GetMinDate(this.Context.CurrentConnectionConfig))
                     {
-                        date = Convert.ToDateTime("1900-1-1");
+                        date = UtilMethods.GetMinDate(this.Context.CurrentConnectionConfig);
                     }
                     return "'" + date.ToString("yyyy-MM-dd HH:mm:ss.fff") + "'";
                 }
@@ -142,7 +143,10 @@ namespace SqlSugar.MySqlConnector
                 }
                 else if (type == UtilConstants.StringType || type == UtilConstants.ObjType)
                 {
-                    return n+"'" + GetString(value).ToSqlFilter() + "'";
+                    ++i;
+                    var parameterName = this.Builder.SqlParameterKeyWord + name + i;
+                    this.Parameters.Add(new SugarParameter(parameterName, value));
+                    return parameterName;
                 }
                 else
                 {

Src/Asp.Net/SqlSugar.MySqlConnector/Tools/UtilMethods.cs

@@ -16,7 +16,21 @@ namespace SqlSugar.MySqlConnector
 {
     public class UtilMethods
     {
-
+        internal static DateTime GetMinDate(ConnectionConfig currentConnectionConfig)
+        {
+            if (currentConnectionConfig.MoreSettings == null)
+            {
+                return Convert.ToDateTime("1900-01-01");
+            }
+            else if (currentConnectionConfig.MoreSettings.DbMinDate == null)
+            {
+                return Convert.ToDateTime("1900-01-01");
+            }
+            else
+            {
+                return currentConnectionConfig.MoreSettings.DbMinDate.Value;
+            }
+        }
         internal static DateTime ConvertFromDateTimeOffset(DateTimeOffset dateTime)
         {
             if (dateTime.Offset.Equals(TimeSpan.Zero))