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FLocal/Patcher/Data/Command/SqlCommand.cs

45 lines
1.2 KiB

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml.Linq;
using Patcher.DB;
namespace Patcher.Data.Command
{
class SqlCommand : AbstractCommand
{
private readonly string[] installQueries;
private readonly string[] uninstallQueries;
private SqlCommand(int num, XElement inner) : base(num)
{
this.installQueries = (from elem in inner.Element("installSql").Elements() select elem.Value).ToArray();
this.uninstallQueries = (from elem in inner.Elements("uninstallSql").Elements() select elem.Value).ToArray();
}
public static SqlCommand CreateSpecific(int num, XElement inner)
{
return new SqlCommand(num, inner);
}
public override IEnumerable<XElement> Apply(Transaction transaction)
{
for(int i=0; i<this.installQueries.Length; i++)
{
this.Execute(this.installQueries[i], transaction);
}
return Enumerable.Empty<XElement>();
}
public override void Rollback(Transaction transaction, XElement commandRollbackInfo)
{
for(int i=0; i<this.uninstallQueries.Length; i++)
{
this.Execute(this.uninstallQueries[i], transaction);
}
}
}
}