public static void Execute(DatabaseSchemaUpdater updater, int initialVersion, int targetVersion)
{
while (true)
{
var migrates = new Migrates();
var method = migrates.GetType().GetMethods().FirstOrDefault(m => Migrate.MigrationEnabled(m, initialVersion));
if (method != null)
{
method.Invoke(migrates, new object[] { updater });
initialVersion = Migrate.Get(method).TargetVersion;
if (initialVersion == targetVersion)
{
break;
}
}
else
{
break;
}
}
if (updater.DatabaseSchemaVersion != targetVersion)
{
throw new NotSupportedException("Valid dynamic db version update migration failed.");
}
}
public DyanamicDBContext(string connectionString, int currentDDBVersion, bool forbidMigration = false) //currentDDBVersion = Config.DDBVersion
: base(connectionString)
{
if (!DatabaseExists())
{
CreateDatabase();
DatabaseSchemaUpdater versionSchemaUpdater = this.CreateDatabaseSchemaUpdater();
versionSchemaUpdater.DatabaseSchemaVersion = currentDDBVersion;
versionSchemaUpdater.Execute();
}
else
{
DatabaseSchemaUpdater versionSchemaUpdater = this.CreateDatabaseSchemaUpdater();
int version = versionSchemaUpdater.DatabaseSchemaVersion;
if (version != currentDDBVersion)
{
if (forbidMigration)
{
throw new InvalidOperationException("Database migration is forbidden!");
}
Migrates.Execute(versionSchemaUpdater, version, currentDDBVersion);
}
}
try
{
FavoriteEntry entry = FavoriteEntries.FirstOrDefault();
}
catch (Exception e)
{
DatabaseSchemaUpdater databaseSchemaUpdater = this.CreateDatabaseSchemaUpdater();
databaseSchemaUpdater.AddTable <FavoriteEntry>();
databaseSchemaUpdater.Execute();
}
try
{
TileEntry entry = TileEntries.FirstOrDefault();
}
catch (Exception e)
{
DatabaseSchemaUpdater databaseSchemaUpdater = this.CreateDatabaseSchemaUpdater();
databaseSchemaUpdater.AddTable <TileEntry>();
databaseSchemaUpdater.Execute();
}
try
{
HistoryEntry entry = HistoryEntries.FirstOrDefault();
}
catch (Exception e)
{
DatabaseSchemaUpdater databaseSchemaUpdater = this.CreateDatabaseSchemaUpdater();
databaseSchemaUpdater.AddTable <HistoryEntry>();
databaseSchemaUpdater.Execute();
}
try
{
StopHistoryEntry entry = StopHistoryEntries.FirstOrDefault();
}
catch (Exception e)
{
DatabaseSchemaUpdater databaseSchemaUpdater = this.CreateDatabaseSchemaUpdater();
databaseSchemaUpdater.AddTable <StopHistoryEntry>();
databaseSchemaUpdater.Execute();
}
try
{
PlanningHistoryEntry entry = PlanningHistoryEntries.FirstOrDefault();
}
catch (Exception e)
{
DatabaseSchemaUpdater databaseSchemaUpdater = this.CreateDatabaseSchemaUpdater();
databaseSchemaUpdater.AddTable <PlanningHistoryEntry>();
databaseSchemaUpdater.Execute();
}
try
{
RecentEntry entry = RecentEntries.FirstOrDefault();
}
catch (Exception e)
{
DatabaseSchemaUpdater databaseSchemaUpdater = this.CreateDatabaseSchemaUpdater();
databaseSchemaUpdater.AddTable <RecentEntry>();
databaseSchemaUpdater.Execute();
}
}