80 lines
2.9 KiB
C#
80 lines
2.9 KiB
C#
/*
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*
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* (c) Copyright Ascensio System Limited 2010-2018
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*
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* This program is freeware. You can redistribute it and/or modify it under the terms of the GNU
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* General Public License (GPL) version 3 as published by the Free Software Foundation (https://www.gnu.org/copyleft/gpl.html).
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* In accordance with Section 7(a) of the GNU GPL its Section 15 shall be amended to the effect that
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* Ascensio System SIA expressly excludes the warranty of non-infringement of any third-party rights.
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*
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* THIS PROGRAM IS DISTRIBUTED WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY OR
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* FITNESS FOR A PARTICULAR PURPOSE. For more details, see GNU GPL at https://www.gnu.org/copyleft/gpl.html
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*
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* You can contact Ascensio System SIA by email at sales@onlyoffice.com
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*
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* The interactive user interfaces in modified source and object code versions of ONLYOFFICE must display
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* Appropriate Legal Notices, as required under Section 5 of the GNU GPL version 3.
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*
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* Pursuant to Section 7 § 3(b) of the GNU GPL you must retain the original ONLYOFFICE logo which contains
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* relevant author attributions when distributing the software. If the display of the logo in its graphic
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* form is not reasonably feasible for technical reasons, you must include the words "Powered by ONLYOFFICE"
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* in every copy of the program you distribute.
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* Pursuant to Section 7 § 3(e) we decline to grant you any rights under trademark law for use of our trademarks.
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*
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*/
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using System.Linq;
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using System.Text;
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namespace ASC.Common.Data.Sql.Expressions
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{
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public class InExp : Exp
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{
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private readonly string column;
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private readonly SqlQuery subQuery;
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private readonly object[] values;
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public InExp(string column, object[] values)
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{
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this.column = column;
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this.values = values;
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}
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public InExp(string column, SqlQuery subQuery)
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{
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this.column = column;
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this.subQuery = subQuery;
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}
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public override string ToString(ISqlDialect dialect)
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{
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if (values != null && values.Count() < 2)
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{
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var exp = values.Count() == 0 ? Exp.False : Exp.Eq(column, values.ElementAt(0));
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return (Not ? !exp : exp).ToString(dialect);
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}
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var sql = new StringBuilder(column);
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if (Not) sql.Append(" not");
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sql.Append(" in (");
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if (values != null)
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{
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sql.Append(string.Join(",", Enumerable.Repeat("?", values.Count()).ToArray()));
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}
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if (subQuery != null)
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{
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sql.Append(subQuery.ToString(dialect));
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}
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return sql.Append(")").ToString();
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}
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public override object[] GetParameters()
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{
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if (values != null) return values;
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if (subQuery != null) return subQuery.GetParameters();
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return new object[0];
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}
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}
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} |