Cloned
Simple gem for copying trees of ActiveRecord models.
Installation
Add this line to your application's Gemfile:
gem 'cloned'And then execute:
$ bundle
Or install it yourself as:
$ gem install cloned
Usage
First you need to define clonning stategy:
class CompanyCopyStrategy < Cloned::Strategy
declare :company do
before do |copied_company, _target_company|
copied_company.copied_at = Time.zone.now
end
after do |copied_company, _target_company|
copied_company.departments_count = copied_company.departments.size
end
nullify :created_at, :updated_at
association(:departments)
end
declare :department do
association :employees, if: ->(employee) { employee.salary > 2000 }
end
declare :employee do
nullify :last_sickleave, :vacation_at
end
endThen you able to build or create clones:
CompanyCopyStrategy.make(target: Company.first, destination: Account.last.companies)or
CompanyCopyStrategy.make(target: Company.first)Cloning destination can be has_many association or nil.
Contributing
Bug reports and pull requests are welcome on GitHub at https://github.com/fs/cloned.
License
The gem is available as open source under the terms of the MIT License.