通过代码向下进行EF 6迁移（不从程序包管理器控制台进行）

Question

On an administration page for a portal, we have a button that will migrate the database to the latest version after a code deployment. This is done with the SetInitializer (see below)

Database.SetInitializer(new MigrateDatabaseToLatestVersion<MigrationContext, Configuration>());
var dbMigrator = new DbMigrator(new Configuration());
dbMigrator.Update();

For testing purposes, we would like to add another button to down the migration back to the start. In Package Manager Console, this can be with update-database -target 0 .

We are using Entity Framework 6, .NET 4.5.1

Does anyone know of a way to make this happen via code?

Thanks

Answer 1

Does dbMigrator.Update("PreviousMigrationName"); // Untested dbMigrator.Update("PreviousMigrationName"); // Untested work?

From https://msdn.microsoft.com/en-us/library/hh829363(v=vs.113).aspx , targetMigration is "The migration to upgrade/downgrade to."

If you want to go down to the first migration, I would think dbMigrator.Update("FirstMigrationName"); would do the trick.