Method to revert all applied migrations

Issue type:

[ ] question [ ] bug report [X] feature request [ ] documentation issue

Database system/driver:

[ ] cordova [ ] mongodb [ ] mssql [ ] mysql / mariadb [ ] oracle [X] postgres [ ] sqlite [ ] sqljs [ ] react-native [ ] expo

TypeORM version:

[X] latest [ ] @next [ ] 0.x.x (or put your version here)

Steps to reproduce or a small repository showing the problem:

There are methods to run all pending migrations and undo only the last migration. It would be useful to also have a method to revert all applied migrations. I would like to use this during tests so as to apply all migrations before a test, and revert all of them after the test.

I have migrations that create TEXT SEARCH CONFIGURATIONs, for example, which are not deleted by the dropDatabase() command. This would ensure that the database would be in a clean state and also test the down part of migrations. The command to undo the last migration cannot be used for this since it does not return anything both when a migration was reverted and when there were no more migrations to revert.

[edevil]

@pleerock Thanks! That’s probably enough.

[pleerock]

here is how this can be achieved right now:

const migrationExecutor = new MigrationExecutor(connection);
const migrations = migrationExecutor.getMigrations();
for (let migration of migrations) {
     migrationExecutor.undoLastMigration();
}