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migrations seem to not break anything at this point.

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Tomorrow I'll start trying to integrate them into sqlite
to see if this works right for table migration.
This commit is contained in:
Sean Dague
2008-06-09 22:01:21 +00:00
parent 504ab4477d
commit 69fb4ee208
1 changed files with 24 additions and 12 deletions
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36
OpenSim/Data/Migration.cs
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@@ -82,6 +82,8 @@ namespace OpenSim.Data
_type = type;
_conn = conn;
_assem = assem;
Initialize();
}
private void Initialize()
@@ -103,6 +105,7 @@ namespace OpenSim.Data
public void Update()
{
int version = 0;
int newversion = 0;
version = FindVersion(_type);
List<string> migrations = GetMigrationsAfter(version);
@@ -112,7 +115,10 @@ namespace OpenSim.Data
cmd.CommandText = m;
cmd.ExecuteNonQuery();
}
UpdateVersion(_type, MaxVersion());
newversion = MaxVersion();
if (newversion > version)
UpdateVersion(_type, newversion);
}
private int MaxVersion()
@@ -126,9 +132,12 @@ namespace OpenSim.Data
foreach (string s in names)
{
Match m = r.Match(s);
int MigrationVersion = int.Parse(m.Groups[1].ToString());
if ( MigrationVersion > max )
max = MigrationVersion;
if (m.Success)
{
int MigrationVersion = int.Parse(m.Groups[1].ToString());
if ( MigrationVersion > max )
max = MigrationVersion;
}
}
return max;
}
@@ -137,14 +146,18 @@ namespace OpenSim.Data
{
int version = 0;
DbCommand cmd = _conn.CreateCommand();
cmd.CommandText = "select version from migrations where name='" + type + "' limit 1";
using (IDataReader reader = cmd.ExecuteReader())
{
if (reader.Read())
try {
cmd.CommandText = "select version from migrations where name='" + type + "' limit 1";
using (IDataReader reader = cmd.ExecuteReader())
{
version = Convert.ToInt32(reader["version"]);
if (reader.Read())
{
version = Convert.ToInt32(reader["version"]);
}
reader.Close();
}
reader.Close();
} catch {
// Something went wrong, so we're version 0
}
return version;
}
@@ -189,9 +202,8 @@ namespace OpenSim.Data
// TODO: once this is working, get rid of this
if (migrations.Count < 1) {
throw new Exception(string.Format("Resource '{0}' was not found", _type));
m_log.InfoFormat("Resource '{0}' was not found", _type);
}
return migrations;
}
}