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Merge pull request #1051 from lileyzhao/SqlSugar5

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fix: loss of null and comment when default is now and current_timestamp
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果糖网 2022-08-08 23:04:35 +08:00 committed by GitHub
commit 489b486cbb
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1 changed files with 3 additions and 3 deletions
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Src/Asp.Net/SqlSugar.MySqlConnector/MySql/DbMaintenance/MySqlDbMaintenance.cs
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@ -454,10 +454,10 @@ namespace SqlSugar.MySqlConnector
} }
if (defaultValue.ToLower().IsIn("now()", "current_timestamp") || defaultValue.ToLower().Contains("current_timestamp")) if (defaultValue.ToLower().IsIn("now()", "current_timestamp") || defaultValue.ToLower().Contains("current_timestamp"))
{ {
string template = "ALTER table {0} CHANGE COLUMN {1} {1} {3} default {2}"; string template = "ALTER table {0} CHANGE COLUMN {1} {1} {3} {4} default {2} COMMENT '{5}'";
var dbColumnInfo = this.Context.DbMaintenance.GetColumnInfosByTableName(tableName).First(it => it.DbColumnName.Equals(columnName, StringComparison.CurrentCultureIgnoreCase)); var dbColumnInfo = this.Context.DbMaintenance.GetColumnInfosByTableName(tableName).First(it => it.DbColumnName.Equals(columnName, StringComparison.CurrentCultureIgnoreCase));
var value = Regex.Match(defaultValue, @"\(\d\)$").Value; var value = Regex.Match(defaultValue, @"\(\d\)$").Value;
string sql = string.Format(template, tableName, columnName, defaultValue, dbColumnInfo.DataType+ value); string sql = string.Format(template, tableName, columnName, defaultValue, dbColumnInfo.DataType + value, dbColumnInfo.IsNullable ? " NULL " : " NOT NULL ", dbColumnInfo.ColumnDescription);
this.Context.Ado.ExecuteCommand(sql); this.Context.Ado.ExecuteCommand(sql);
return true; return true;
} }