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- 增加 ISelect ToDelete/ToUpdate 方法，实现更复杂的删除/更新操作；

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This commit is contained in:
28810
2019-10-30 20:35:42 +08:00
parent db7fe82403
commit 21b4b0d5d3
21 changed files with 1594 additions and 9 deletions
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37
FreeSql/Internal/CommonProvider/SelectProvider/Select0Provider.cs
View File

@ -833,6 +833,43 @@ namespace FreeSql.Internal.CommonProvider
return (map, field.ToString());
}
string GetToDeleteWhere(string alias)
{
var pks = _tables[0].Table.Primarys;
if (pks.Length == 1)
return $"{_commonUtils.QuoteSqlName(_tables[0].Table.Primarys[0].Attribute.Name)} in (select * from ({this.ToSql($"{_tables[0].Alias}.{_commonUtils.QuoteSqlName(_tables[0].Table.Primarys[0].Attribute.Name)}")}) {alias})";
else
{
var concatTypes = new Type[pks.Length * 2 - 1];
var concatMainCols = new string[pks.Length * 2 - 1];
var concatInCols = new string[pks.Length * 2 - 1];
var concatSplit = _commonUtils.FormatSql("{0}", $",{alias},");
for (var a = 0; a < pks.Length; a++)
{
concatTypes[a * 2] = pks[a].CsType;
concatMainCols[a * 2] = _commonUtils.QuoteSqlName(pks[a].Attribute.Name);
concatInCols[a * 2] = $"{_tables[0].Alias}.{_commonUtils.QuoteSqlName(pks[a].Attribute.Name)}";
if (a < pks.Length - 1)
{
concatTypes[a * 2 + 1] = typeof(string);
concatMainCols[a * 2 + 1] = concatSplit;
concatInCols[a * 2 + 1] = concatSplit;
}
}
return $"{_commonUtils.StringConcat(concatMainCols, concatTypes)} in (select * from ({this.ToSql($"{_commonUtils.StringConcat(concatInCols, concatTypes)} as as1")}) {alias})";
}
}
public IDelete<T1> ToDelete()
{
if (_tables[0].Table.Primarys.Any() == false) throw new Exception($"ToDelete 功能要求实体类 {_tables[0].Table.CsName} 必须有主键");
return _orm.Delete<T1>().Where(GetToDeleteWhere("ftb_del"));
}
public IUpdate<T1> ToUpdate()
{
if (_tables[0].Table.Primarys.Any() == false) throw new Exception($"ToUpdate 功能要求实体类 {_tables[0].Table.CsName} 必须有主键");
return _orm.Update<T1>().Where(GetToDeleteWhere("ftb_upd"));
}
protected List<Dictionary<Type, string>> GetTableRuleUnions()
{
var unions = new List<Dictionary<Type, string>>();

6
FreeSql/Internal/UtilsExpressionTree.cs
View File

@ -297,7 +297,11 @@ namespace FreeSql.Internal
foreach (var col in trytb.Primarys)
col.Attribute.IsPrimary = true;
}
foreach (var col in trytb.Primarys) col.Attribute.IsNullable = false;
foreach (var col in trytb.Primarys)
{
col.Attribute.IsNullable = false;
col.Attribute.DbType = col.Attribute.DbType.Replace("NOT NULL", "");
}
tbc.AddOrUpdate(entity, trytb, (oldkey, oldval) => trytb);
#region 查找导航属性的关系、virtual 属性延时加载，动态产生新的重写类