Adds migration and schema.rb support to PostgreSQL enum data types.
Add this line to your application's Gemfile:
And then execute:
Or install it yourself as:
$ gem install activerecord-postgres_enum
create_enum :mood, %w(happy great been_better) create_table :person do t.enum :person_mood, enum_type: :mood end
Running the above will create a table :person, with a column :person_mood of type :mood. This will also be saved on schema.rb so that
rake db:schema:load works as expected.
To drop an existing enum:
To rename an existing enum:
rename_enum :mood, :emotions
To add a value into existing enum:
add_enum_value :mood, "pensive"
To remove a value from existing enum:
⚠️ Make sure that value is not used anywhere in the database.
remove_enum_value :mood, "pensive"
To add a new enum column to an existing table:
def change create_enum :product_type, %w[one-off subscription] add_column :products, :type, :product_type end
To rename a value:
rename_enum_value :mood, "pensive", "wistful"
NB: To stop Postgres complaining about adding enum values inside a transaction, use
disable_ddl_transaction! in your migration.
After checking out the repo, run
bin/setup to install dependencies. Then, run
rake spec to run the tests. You can also run
bin/console for an interactive prompt that will allow you to experiment.
To install this gem onto your local machine, run
bundle exec rake install. To release a new version, update the version number in
version.rb, and then run
bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the
.gem file to rubygems.org.
Bug reports and pull requests are welcome on GitHub at https://github.com/bibendi/activerecord-postgres_enum. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.
The gem is available as open source under the terms of the MIT License.
Code of Conduct
Everyone interacting in the Activerecord::PostgresEnum project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.