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- 优化 IUpdate.Set 字符串累加本身为 NULL 的情况；#1209

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This commit is contained in:
2881099 2022-08-09 19:21:22 +08:00
parent f042ea46bb
commit efc454b817
2 changed files with 8 additions and 0 deletions
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3
FreeSql.Tests/FreeSql.Tests/Sqlite/Curd/SqliteUpdateTest.cs
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@ -156,6 +156,9 @@ namespace FreeSql.Tests.Sqlite
sql = update.Set(a => a.Clicks * incrv / 1).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
Assert.Equal("UPDATE \"tb_topic\" SET \"Clicks\" = ifnull(\"Clicks\", 0) * 10 / 1 WHERE (\"Id\" = 1)", sql);
sql = update.Set(a => a.Title + "xxxx").Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
Assert.Equal("UPDATE \"tb_topic\" SET \"Title\" = ifnull(\"Title\", '') || 'xxxx' WHERE (\"Id\" = 1)", sql);
sql = update.Set(a => a.Id - incrv).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
Assert.Equal("UPDATE \"tb_topic\" SET \"Id\" = (\"Id\" - 10) WHERE (\"Id\" = 1)", sql);

5
FreeSql/Internal/CommonProvider/UpdateProvider.cs
View File

@ -623,6 +623,11 @@ namespace FreeSql.Internal.CommonProvider
var replname = _commonUtils.QuoteSqlName(col.Column.Attribute.Name);
expt = expt.Replace(replname, _commonUtils.IsNull(replname, _commonUtils.FormatSql("{0}", replval)));
}
else if (col.Column.CsType == typeof(string))
{
var replname = _commonUtils.QuoteSqlName(col.Column.Attribute.Name);
expt = expt.Replace(replname, _commonUtils.IsNull(replname, _commonUtils.FormatSql("{0}", "")));
}
}
_setIncr.Append(", ").Append(_commonUtils.QuoteSqlName(cols.First().Column.Attribute.Name)).Append(" = ").Append(expt);
return this;