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MySql support add column description

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sunkaixuan 2023-04-05 13:54:34 +08:00
parent 717d95ab34
commit 72152aea88
2 changed files with 53 additions and 15 deletions
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33
Src/Asp.Net/SqlSugar/Realization/MySql/DbMaintenance/MySqlDbMaintenance.cs
View File

@ -320,13 +320,32 @@ namespace SqlSugar
}
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);
tableName = this.SqlBuilder.GetTranslationColumnName(tableName);
columnName = this.SqlBuilder.GetTranslationColumnName(columnName);
var sql = this.Context.Ado.GetDataTable($"SHOW CREATE TABLE {tableName};").Rows[0][1] + "";
var columns = sql.Split('\n');
var columnList = columns.Where(it => it.Last() == ',').ToList();
foreach (var column in columnList)
{
if (column.Contains(columnName))
{
Regex regex = new Regex(" COMMENT .+$");
var newcolumn = regex.Replace(column, "");
newcolumn += $" COMMENT '{description.ToSqlFilter()}' ";
var updateSql = $"ALTER TABLE {tableName} MODIFY COLUMN " + newcolumn.TrimEnd(',');
this.Context.Ado.ExecuteCommand(updateSql);
break;
}
}
////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>

35
Src/Asp.NetCore2/SqlSugar/Realization/MySql/DbMaintenance/MySqlDbMaintenance.cs
View File

@ -5,7 +5,7 @@ using System.Linq;
using System.Reflection;
using System.Text;
using System.Text.RegularExpressions;
namespace SqlSugar
{
public class MySqlDbMaintenance : DbMaintenanceProvider
@ -321,13 +321,32 @@ namespace SqlSugar
}
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);
tableName = this.SqlBuilder.GetTranslationColumnName(tableName);
columnName=this.SqlBuilder.GetTranslationColumnName(columnName);
var sql = this.Context.Ado.GetDataTable($"SHOW CREATE TABLE {tableName};").Rows[0][1]+"";
var columns=sql.Split('\n');
var columnList = columns.Where(it => it.Last()==',').ToList();
foreach ( var column in columnList )
{
if (column.Contains(columnName))
{
Regex regex = new Regex(" COMMENT .+$");
var newcolumn = regex.Replace(column,"");
newcolumn += $" COMMENT '{description.ToSqlFilter()}' ";
var updateSql = $"ALTER TABLE {tableName} MODIFY COLUMN " + newcolumn.TrimEnd(',');
this.Context.Ado.ExecuteCommand(updateSql);
break;
}
}
////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>