Mix.Tasks.Ecto.Rollback
Reverts applied migrations in the given repository.
By default, migrations are expected at "priv/YOUR_REPO/migrations"
directory of the current application but it can be configured
by specify the :priv key under the repository configuration.
Runs the latest applied migration by default. To roll back to
to a version number, supply --to version_number.
To roll back a specific number of times, use --step n.
To undo all applied migrations, provide --all.
Command line options
--all- revert all applied migrations--step/-n- rever n number of applied migrations--to/-v- revert all migrations down to and including version--no-start- do not start applications
Examples
mix ecto.rollback MyApp.Repo
mix ecto.rollback MyApp.Repo -n 3
mix ecto.rollback MyApp.Repo --step 3
mix ecto.rollback MyApp.Repo -v 20080906120000
mix ecto.rollback MyApp.Repo --to 20080906120000
Summary↑
| run(args, migrator \\ :erlang.make_fun(Ecto.Migrator, :run, 4)) |