Modern IRB has time measurement built in. measure # Enable measure :off # Disable Custom Should your version of IRB not offer...
...to configure omniauth-multi-provider to support multiple SAML identity providers for a single Rails app: To solve this, the omniauth-multi-provider gem acts as a dynamic wrapper around...
...creating a database table for a join model without further importance, you can use Rails' create_join_table: class CreateSchoolsStudents < ActiveRecord::Migration[7.2] def change create_join_table :schools, :students...
...without sending to the server, add this to config/initializers/sentry.rb inside the Sentry.init block: if Rails.env.development? # Use dummy transport to prevent actual transmission to Sentry config.transport.transport_class = Sentry::DummyTransport config.background_worker...
...this helper method after the Sentry.set_tags block: def log_sentry_event(event, hint) Rails.logger.error('SENTRY EVENT CAPTURED (LOCAL ONLY)') # Log anything that is interesting to you about the Sentry...
Just found out about a great feature in Rails that seems to be around since Rails 2. Start a console with the --sandbox (or -s) parameter: rails console --sandbox
$ ruby -e "RubyVM::YJIT.enable; puts RubyVM::YJIT.enabled?" true The last variant is what Rails 7.2+ is doing after the boot process with its new default configuration. So if you...
...are on a current Rails version and didn't explicitly turn off YJIT, you are probably already using it. Keep in mind that Rails turns on YJIT after the boot...
...registered constants and the file references during the boot. Therefore you need to add Rails.autoloaders.log! at the end of your config/application.rb file. You could also run bin/rails zeitwerk:check for...
...do it, and it's great, especially in combination with Sprockets (or Propshaft on Rails 7). You might be missing some convenience features, though. Here we cover one specific issue...
...Once you have started your development Rails server and esbuild with the --watch option (if you used jsbundling-rails to set up, you probably use bin/dev), esbuild will recompile your...
...All you need is a pretty print-stylesheet. How to use it from your Rails application You can have PDFKit render a website by simply calling PDFKit.new('http://google.com').to...
...separately before calling to_file. Alternatively you can use PDFKit::Middleware and all your Rails routes automagically respond to the .pdf format. This is awesome to get started fast, but...
In Capistrano 3, your Capfile requires 'capistrano/rails/migrations', which brings two Capistrano tasks: deploy:migrate and deploy:migrating. The former checks...
...good solution to work around this. When you migrate to managing vendor assets in Rails with Bower, the bower-rails gem comes with its own solution for this problem. It...
...can configure your application to automatically resolve paths before precompiling assets: BowerRails.configure do |bower_rails| # Invokes rake bower:resolve before precompilation. Defaults to false bower_rails.resolve_before_precompile = true
...worldwide by developers looking for help and tips on web development with Ruby on Rails and DevOps. 15 years ago – in 2009 – we wrote our first card. Since then, over...
...in makandra cards We gain the most experience in web development and Ruby on Rails in our day-to-day work, as web development is our largest team and we...
...a proof of concept how a integration (slightly different as the official docs for Rails) might look like in Rails + webpack + Unpoly. Also see the HN discussion for pro and...
In the past we validate and set default values for boolean attributes in Rails and not the database itself. Reasons for this: Older Rails didn't support database defaults when...
An alternative approach, which currently reflects more the general opinion of the Rails upstream on constraints in the database, is adding default values in the schema of the...
...field that is handled by Carrierwave uploaders (or maybe any other attachment solution for Rails) in tests allows different approaches. Here is a short summary of the most common methods...
...RSpec looks for fixture files: RSpec.configure do |config| config.file_fixture_path = "spec/custom_directory" end Alternatives: Rails.root.join('spec/fixtures/files/avatar.jpg').open('r') Rails.root.join('spec/fixtures/files/avatar.jpg').read File.open('spec/fixtures/files/avatar.jpg') (might only work if you run the...
On the Rails console, assigning an object to a variable can lead to this strange error (without stacktrace): irb > recipient = Recipient.find(123) Traceback (most recent call last): TypeError (nil can...
...gem install reline, or in projects with Bundler: gem 'reline', '>= 0.2.0' # Fixes TypeError in Rails console
...need to decide, which configuration between different environment works good for you. By default Rails uses these settings for your application: require(:user) raises in all environments ActionController::ParameterMissing if...
By activating strict_loading you force developers to address n+1 queries by preloading all associations used in the index...
Rails offers several methods to manage three types of different cookies along with a session storage for cookies. These are normal, signed and encrypted cookies. By following the happy...
...sparse and only focuses on controller specs, which recommended usage have been limited since Rails 5+ (see "Rails: Support for Rails 5"), this card will summarize some guidance on how...
...Fixtures are handy for development seed data, they can be loaded in development with: rails db:fixtures:load Downsides Less matchers & library support It is harder to mock with minitest...
...twentieth in what ordering? The ordering is unknown, unless you specified ORDER BY. In Rails, if you use Record.first or Record.last, it will default to ordering by id.
You can report CSP violations to Sentry. Within config/initializers/content_security_policy.rb: Rails.application.configure do config.content_security_policy do |policy| # Settings for the policy policy.report_uri 'https://ooo4444bbb.ingest.de.sentry.io/api/ooo4444bbb/security/?sentry_key=ooo4444bbb' end end Replace the actual...
The change_column method for rails migrations support casting with a custom SQL statement. This allows us to change a column type and keep the former content as the new...
When using Rails to truncate strings, you may end up with strings that are still too long for their container or are not as long as they could be. You...