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/*
* Copyright (c) Contributors, http://opensimulator.org/
* See CONTRIBUTORS.TXT for a full list of copyright holders.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the OpenSimulator Project nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
using Npgsql;
using System;
using System.Data;
using System.Data.Common;
using System.Reflection;
namespace OpenSim.Data.PGSQL
{
public class PGSQLMigration : Migration
{
public PGSQLMigration(NpgsqlConnection conn, Assembly assem, string type)
: base(conn, assem, type)
{
}
public PGSQLMigration(NpgsqlConnection conn, Assembly assem, string subtype, string type)
: base(conn, assem, subtype, type)
{
}
protected override int FindVersion(DbConnection conn, string type)
{
int version = 0;
NpgsqlConnection lcConn = (NpgsqlConnection)conn;
using (NpgsqlCommand cmd = lcConn.CreateCommand())
{
try
{
cmd.CommandText = "select version from migrations where name = '" + type + "' " +
" order by version desc limit 1"; //Must be
using (NpgsqlDataReader reader = cmd.ExecuteReader())
{
if (reader.Read())
{
version = Convert.ToInt32(reader["version"]);
}
reader.Close();
}
}
catch
{
// Return -1 to indicate table does not exist
return -1;
}
}
return version;
}
protected override void ExecuteScript(DbConnection conn, string[] script)
{
if (!(conn is NpgsqlConnection))
{
base.ExecuteScript(conn, script);
return;
}
foreach (string sql in script)
{
try
{
using (NpgsqlCommand cmd = new NpgsqlCommand(sql, (NpgsqlConnection)conn))
{
cmd.ExecuteNonQuery();
}
}
catch (Exception)
{
throw new Exception(sql);
}
}
}
}
}
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