Do it like => validates :photos, attached: true, content_type: ['image/png', 'image/jpg', 'image/jpeg'], size: { less_than: 500.kilobytes }, limit: { min: 1, max: 3 }, aspect_ratio: :landscape, dimension: { width: { in: 800..1600 }

Useful collection of RSpec addons

Easy way to login as any user in system

How fast is your code? See it directly in Rails console.

Simple way to cache results of methods.

The fastest way to prototype API in your Rails application

Easy wait to do view caching with automatically added "locale" value to the cached key.

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

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

reCAPTCHA v3 Ruby on Rails gem

Rails SQL Views made easy ;)

Slim 4+ and ERB friends again :)

AnyLogin gem test application

downloader

school test task

ActiveRecord enumeration field type - test application

Learn Ruby/Rails topics during your app’s boot time.

Rails logs analyzer (see how fast your views are rendering)

Returns relations/association for soft deleted records in DB

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

The idea of this gem is to hide as much as possible Active Storage logs from console so you can see only important information and requests

Benchmark and measure execution time your Ruby methods without an additional code changes

Generate google-style avatars in your application

Static website using https with your own domain name using Amazon S3 and Cloudflare for FREE

Group Active Record by ranges or set of values with a single SQL query.

Ruby on Rails + CKEditor 5

Save all Rails deprecation in log file for future investigation

Rails Lazy Mobile Tester

Run recent rspec files only (the only recently modified).

Demo ---->

Zips & Phones

mega simple authorization plugin for RoR

Monitor performance of you Rails applications (self-hosted and free)

The easiest way to measure execution time of your code

Execute SQL inside Rails console, or app itself

All models in a single table, new attributes without migrations. Works like regular AR model

Painless work with complex Ruby hashes/arrays.

Do you want to call 42.to_user, [42, 43, 44].to_users? Try this gem :)

Wrap your methods in DB Transactions

Redirect the user to the proper "back" page

Generate PNG previews for HTML snippets (html/css/js). Any complexity.

Simple way to protect your content from copy-pasting

rails+spring+rspec = friends :)

SidekiqLogAnalyser gem allows to see summary of your sidekiq workers (based on log file).

tdemo