Do it like => validates :photos, attached: true, content_type: ['image/png', 'image/jpg', 'image/...

A reliable way to generate PDF of any complexity in Ruby on Rails apps

Rails SQL Views made easy ;)

Access your Rails console, see logs, execute rake commands directly from the browser. Great addit...

Wrap your methods in DB Transactions

See in development logs how many records your queries returns. It can help with solving performan...

Useful collection of RSpec addons

Easy print debug information to your console in Ruby/Rails app.

Coding & debugging must be fun. Make life a bit harder for your colleagues :)