Generates a migration.

The repository must be set under :ecto_repos in the current app configuration or given via the -r option.

Examples

mix triplex.gen.migration add_posts_table
mix triplex.gen.migration add_posts_table -r Custom.Repo

By default, the migration will be generated to the “priv/YOUR_REPO/migrations” directory of the current application but it can be configured to be any subdirectory of priv by specifying the :priv key under the repository configuration.

This generator will automatically open the generated file if you have ECTO_EDITOR set in your environment variable.

Command line options

• -r, --repo - the repo to generate migration for

PS

All of this code is copied from mix ecto.gen.migration task, if something does not work, please compare them and try to stay as close to it as possible.