DocumentServer/ServerComponents/FileConverterUtils2/DocsChanges.cs
2015-04-28 19:22:25 +03:00

138 lines
5.3 KiB
C#

/*
* (c) Copyright Ascensio System SIA 2010-2015
*
* This program is a free software product. You can redistribute it and/or
* modify it under the terms of the GNU Affero General Public License (AGPL)
* version 3 as published by the Free Software Foundation. In accordance with
* Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
* that Ascensio System SIA expressly excludes the warranty of non-infringement
* of any third-party rights.
*
* This program is distributed WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For
* details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
*
* You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia,
* EU, LV-1021.
*
* The interactive user interfaces in modified source and object code versions
* of the Program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU AGPL version 3.
*
* Pursuant to Section 7(b) of the License you must retain the original Product
* logo when distributing the program. Pursuant to Section 7(e) we decline to
* grant you any rights under trademark law for use of our trademarks.
*
* All the Product's GUI elements, including illustrations and icon sets, as
* well as technical writing content are licensed under the terms of the
* Creative Commons Attribution-ShareAlike 4.0 International. See the License
* terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
*
*/
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using System.Configuration;
namespace FileConverterUtils2
{
public class DocsChange
{
public string data;
public string userid;
}
public class DocsChanges
{
private delegate ErrorTypes DelegateRemove(string sKey);
private DelegateRemove m_oRemove = null;
public ErrorTypes GetChanges(string sKey, out List<DocsChange> aChanges)
{
aChanges = new List<DocsChange>();
ErrorTypes eErrorTypes = ErrorTypes.NoError;
try
{
using (IDbConnection sqlCon = GetDbConnection())
{
sqlCon.Open();
using (IDbCommand oSelCommand = sqlCon.CreateCommand())
{
oSelCommand.CommandText = GetSELECTString(sKey);
using (IDataReader oReader = oSelCommand.ExecuteReader())
{
while (true == oReader.Read())
{
DocsChange oDocsChange = new DocsChange();
oDocsChange.data = Convert.ToString(oReader["dc_data"]);
oDocsChange.userid = Convert.ToString(oReader["dc_user_id_original"]);
aChanges.Add(oDocsChange);
}
}
}
}
}
catch
{
eErrorTypes = ErrorTypes.EditorChanges;
}
return eErrorTypes;
}
public ErrorTypes RemoveChanges(string sKey)
{
ErrorTypes eErrorTypes = ErrorTypes.NoError;
try
{
using (IDbConnection sqlCon = GetDbConnection())
{
sqlCon.Open();
using (IDbCommand oSelCommand = sqlCon.CreateCommand())
{
oSelCommand.CommandText = GetDELETEString(sKey);
oSelCommand.ExecuteNonQuery();
}
}
}
catch
{
eErrorTypes = ErrorTypes.EditorChanges;
}
return eErrorTypes;
}
public void RemoveChangesBegin(string sKey, AsyncCallback fCallback, object oParam)
{
m_oRemove = RemoveChanges;
m_oRemove.BeginInvoke(sKey, fCallback, oParam);
}
public ErrorTypes RemoveChangesEnd(IAsyncResult ar)
{
ErrorTypes eErrorTypes = ErrorTypes.NoError;
try
{
eErrorTypes = m_oRemove.EndInvoke(ar);
}
catch
{
eErrorTypes = ErrorTypes.TaskResult;
}
return eErrorTypes;
}
private IDbConnection GetDbConnection()
{
var cs = ConfigurationManager.ConnectionStrings[ConfigurationManager.AppSettings["utils.taskqueue.db.connectionstring"]];
var dbProvider = System.Data.Common.DbProviderFactories.GetFactory(cs.ProviderName);
var connection = dbProvider.CreateConnection();
connection.ConnectionString = cs.ConnectionString;
return connection;
}
private string GetSELECTString(string sKey)
{
return string.Format("SELECT * FROM doc_changes WHERE dc_key='{0}' ORDER BY dc_change_id ASC;", sKey);
}
private string GetDELETEString(string sKey)
{
return string.Format("DELETE FROM doc_changes WHERE dc_key='{0}';", sKey);
}
}
}