db:model

I like migrations in Ruby on Rails. If you have only a few models in the project and you need to change something in the table you can safely race the new migration and enjoy life. But if the models are several dozen and the migration account goes to hundreds then the joy disappears. To simplify the work in large projects this gem was created. Using it you can accurately save the model data to a file then make changes to the database and reload the objects back into the model.

Add this line to your application's Gemfile:

gem 'db-model'

And then execute:

$ bundle

Or install it yourself as:

$ gem install db-model

Work with single model migration in place of several migration.

Dump rails model Name into file spec/fixtures/names.yml

$ rails db:model:dump[name]

Load from file spec/fixtures/names.yml to model Name

$ rails db:model:load[name]

Migrate model Name down

$ rails db:model:down[name]

Migrate model Name up

$ rails db:model:up[name]

Migrate down and then up

$ rails db:model:redo[name]

Reset model: dump, migrate down, then up and load

$ rails db:model:reset[name]

If the model has the field :name then dump procedure use this field as indeficator.

References between models like belongs_to will dumped in yml file with readable name and not with id numbers.

You can also define method to_dump in your models for an unregular cases.

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/emarkine/db-model. 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.

Everyone interacting in the Db::Model project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.