ProcessChain gives you a simple way to using the Railsway oriented programming pattern. And allows you to write code in a more functional style.
Add this line to your application's Gemfile:
gem 'process_chain'
And then execute:
$ bundle
Or install it yourself as:
$ gem install process_chain
class UpdateUserProcess
include ProcessChain
def assignee_attributes(attrs)
if_success do
return_success user: results[:user].assigne_attributes(attrs)
end
end
def validate_user
if_success do
if results.user.valid?
return_fail errors: results[:user].errors, user: results.user
else
return_success
end
end
end
def save_user
user = results[:user]
if_success do
if user.save
return_success user: user
else
return_fail user: user
end
end
end
end
## Controller
def create
process = UpdateUserProcess.new(input: user)
.assignee_attributes(permitted_params)
.validate_user
.save_user
if process.success?
render status: :ok, json: process.results[:user]
else
render status: :bad_request, json: process.results[:errors]
end
end
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/max-konin/process_chain. 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 ProcessChain project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.