public static void ExecutePendingResourceMigrations(string resPath, DefaultObjectContext dbContext)
{
Guard.ArgumentNotNull(() => dbContext);
string headPath = Path.Combine(resPath, "head.txt");
if (!File.Exists(headPath))
{
return;
}
string resHead = File.ReadAllText(headPath).Trim();
if (!MigratorUtils.IsValidMigrationId(resHead))
{
return;
}
var migrator = new DbMigrator(new MigrationsConfiguration());
var migrations = GetPendingResourceMigrations(migrator, resHead);
foreach (var id in migrations)
{
if (IsAutomaticMigration(id))
{
continue;
}
if (!IsValidMigrationId(id))
{
continue;
}
// Resolve and instantiate the DbMigration instance from the assembly
var migration = CreateMigrationInstanceByMigrationId(id, migrator.Configuration);
var provider = migration as ILocaleResourcesProvider;
if (provider == null)
{
continue;
}
var builder = new LocaleResourcesBuilder();
provider.MigrateLocaleResources(builder);
var resEntries = builder.Build();
var resMigrator = new LocaleResourcesMigrator(dbContext);
resMigrator.Migrate(resEntries);
}
}
/// <summary>
/// Migrates the database to the latest version
/// </summary>
/// <returns>The number of applied migrations</returns>
public int RunPendingMigrations(TContext context)
{
var pendingMigrations = GetPendingMigrations().ToList();
if (!pendingMigrations.Any())
{
return(0);
}
var coreSeeders = new List <SeederEntry>();
var externalSeeders = new List <SeederEntry>();
var isCoreMigration = context is DefaultObjectContext;
var initialMigration = this.GetDatabaseMigrations().LastOrDefault() ?? "[Initial]";
var lastSuccessfulMigration = initialMigration;
IDataSeeder <DefaultObjectContext> coreSeeder = null;
IDataSeeder <TContext> externalSeeder = null;
int result = 0;
// Apply migrations
foreach (var migrationId in pendingMigrations)
{
if (MigratorUtils.IsAutomaticMigration(migrationId))
{
continue;
}
if (!MigratorUtils.IsValidMigrationId(migrationId))
{
continue;
}
// Resolve and instantiate the DbMigration instance from the assembly
var migration = MigratorUtils.CreateMigrationInstanceByMigrationId(migrationId, Configuration);
// Seeders for the core DbContext must be run in any case
// (e.g. for Resource or Setting updates even from external plugins)
coreSeeder = migration as IDataSeeder <DefaultObjectContext>;
externalSeeder = null;
if (!isCoreMigration)
{
// Context specific seeders should only be resolved
// when origin is external (e.g. a Plugin)
externalSeeder = migration as IDataSeeder <TContext>;
}
try
{
// Call the actual Update() to execute this migration
Update(migrationId);
result++;
}
catch (AutomaticMigrationsDisabledException)
{
if (context is DefaultObjectContext)
{
throw;
}
// DbContexts in plugin assemblies tend to produce
// this error, but obviously without any negative side-effect.
// Therefore catch and forget!
// TODO: (MC) investigate this and implement a cleaner solution
}
catch (Exception ex)
{
result = 0;
throw new DbMigrationException(lastSuccessfulMigration, migrationId, ex.InnerException ?? ex, false);
}
if (coreSeeder != null)
{
coreSeeders.Add(new SeederEntry {
DataSeeder = coreSeeder,
MigrationId = migrationId,
PreviousMigrationId = lastSuccessfulMigration,
});
}
if (externalSeeder != null)
{
externalSeeders.Add(new SeederEntry {
DataSeeder = externalSeeder,
MigrationId = migrationId,
PreviousMigrationId = lastSuccessfulMigration,
});
}
lastSuccessfulMigration = migrationId;
}
// Apply core data seeders first
DefaultObjectContext coreContext = null;
if (coreSeeders.Any())
{
coreContext = isCoreMigration ? context as DefaultObjectContext : new DefaultObjectContext();
RunSeeders <DefaultObjectContext>(coreSeeders, coreContext);
}
// Apply external data seeders
RunSeeders <TContext>(externalSeeders, context);
Logger.Information("Database migration successful: {0} >> {1}".FormatInvariant(initialMigration, lastSuccessfulMigration));
return(result);
}