public async Task <SchemaMigrationResult> ApplyAll()
{
var result = new SchemaMigrationResult();
Stopwatch sw = new Stopwatch();
logger.LogInformation($"Beginning [ApplyAll] action for {Migrations.Count} migrations...");
sw.Start();
var latestVersion = new Version(0, 0, 0);
var latestSchemaAppliedDoc = (await GetAppliedVersionsAsync()).LastOrDefault();
if (!latestSchemaAppliedDoc.Equals(default(KeyValuePair <Version, SchemaDocument>)))
{
latestVersion = latestSchemaAppliedDoc.Key;
}
result.StartingVersion = latestVersion;
result.MigrationsFound = Migrations.Count;
foreach (var curVersion in Migrations)
{
if (curVersion.Key <= latestVersion)
{
logger.LogInformation($"Migrations for version {curVersion.Key} skipped as newer version ({latestVersion}) is already applied.");
result.MigrationsSkipped += 1;
continue;
}
logger.LogInformation($"Applying migrations for {curVersion.Key.ToString()}");
await curVersion.Value.Apply(db);
var newVersion = new SchemaDocument()
{
DateApplied = DateTime.UtcNow,
Version = curVersion.Key.ToString()
};
await UpdateAppliedVersions(db, newVersion);
result.MigrationsApplied += 1;
result.EndingVersion = curVersion.Key;
logger.LogInformation($"Done applying migrations for {curVersion.Key.ToString()}");
}
sw.Stop();
result.ElapsedMiliseconds = sw.ElapsedMilliseconds;
logger.LogInformation($"Completed [ApplyAll] action in {sw.ElapsedMilliseconds}ms. Applied: {result.MigrationsApplied}, Skipped: {result.MigrationsSkipped}");
return(result);
}
private async Task UpdateAppliedVersions(IMongoDatabase db, SchemaDocument ver)
{
await db.GetCollection <SchemaDocument>(options.CollectionName).InsertOneAsync(ver, null, CancellationToken.None);
}
