Unique Content Set

Check for uniquely created content in a Redis set.

gem install unique_content_set

# uses a Redis Set named something like "unique:5:messages"
set = UniqueContentSet.new user.id, :messages

if set.add(@message.body, @message.created_at)
  # this message body is unique!
end

if set.exist?(@message.body)
  # this message body has been posted before, do something!
end

# Purge old message content.
set.delete_before(1.month.ago)

If you'd like to hack on UniqueContentSet, start by forking the repo on GitHub:

https://github.com/technoweenie/unique_content_set

The best way to get your changes merged back into core is as follows:

• Clone down your fork
• Create a thoughtfully named topic branch to contain your change
• Hack away
• Add tests and make sure everything still passes by running rake
• If you are adding new functionality, document it in the README
• Do not change the version number, I will do that on my end
• If necessary, rebase your commits into logical chunks, without errors
• Push the branch up to GitHub
• Send a pull request to the technoweenie/unique_content_set project.