Build Status: master Gem Version MIT license
πΉ micro gem to validate updatability enforcing optimistic locking using +lock_version`, before you
hit the Database.
Add this line to your application's Gemfile:
gem 'optimistically_stale'
And then execute:
$ bundle
Or install it yourself as:
$ gem install optimistically_stale
# @example Check a record before updating class UpdateBook include Command def call(book:, attributes:) book.update(attributes) end def valid?(book:, attributes:) valid_for_update?(record: :book, attributes: attributes) end end # ... book = Book.first attributes = { lock_version: book.lock_version, title: 'new book title' } result = UpdateBook.call(book: book, attributes: attributes) result.successful? # => true book.title # => 'new book title' # @example Because the book version has changed, another update fails attributes[:title] = 'another title' result = UpdateBook.call(book: book, attributes: attributes) # => throws ActiveRecord::StaleObjectError
After checking out the repo, run bin/setup to install dependencies. Then, run rake test 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 XPBytes/optimistically_stale.