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- 补充 fsql.InsertOrUpdate IfExistsDoNothing 数据存在时不做任何事(不更新) #330 #316；

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28810
2020-07-18 11:58:58 +08:00
parent f97e7c21eb
commit 8d11993e6c
44 changed files with 5585 additions and 73 deletions
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18
Providers/FreeSql.Provider.MySql/Curd/MySqlInsertOrUpdate.cs
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@@ -40,7 +40,23 @@ namespace FreeSql.MySql.Curd
string sql = "";
if (IdentityColumn != null && flagInsert) sql = insert.ToSql();
else sql = new OnDuplicateKeyUpdate<T1>(insert.InsertIdentity()).ToSql();
else
{
insert.InsertIdentity();
if (_doNothing == false)
sql = new OnDuplicateKeyUpdate<T1>(insert).ToSql();
else
{
if (_table.Primarys.Any() == false) throw new Exception($"fsql.InsertOrUpdate + IfExistsDoNothing + MySql 要求实体类 {_table.CsName} 必须有主键");
sql = insert.ToSqlValuesOrSelectUnionAllExtension101(false, (rowd, idx, sb) =>
sb.Append(" \r\n FROM dual WHERE NOT EXISTS(").Append(
_orm.Select<T1>()
.AsTable((_, __) => _tableRule?.Invoke(__)).AsType(_table.Type)
.DisableGlobalFilter()
.WhereDynamic(rowd)
.Limit(1).ToSql("1").Replace("\r\n", "\r\n\t")).Append(")"));
}
}
if (string.IsNullOrEmpty(sql)) return null;
if (insert._params?.Any() == true) dbParams.AddRange(insert._params);
return sql;