...so that a tcp connection is used instead of a socket connection. Configure rails application to use the database development: adapter: mysql2 database: projectname_development encoding: utf8mb4 collation: utf8mb4_unicode...
Modern IRB has time measurement built in. measure # Enable measure :off # Disable Custom Should your version of IRB not offer...
...groups are a useful RSpec feature. Unfortunately the default directory structure generated by rspec-rails has no obvious place to put them. I recommend storing them like this: spec/models/shared_examples/foo.rb spec/models/shared_examples/bar.rb...
...those shared examples available to all specs, put the following into your spec_helper.rb (for rails 4 in rails_helper.rb), above the RSpec.configure block: Dir[Rails.root.join("spec/models/shared_examples/**/*.rb")].each {|f| require f...
...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...
TL;DR: Pannellum is a small (~56 kB, own WebGL renderer, no three.js) equirectangular panorama viewer. The npm package has...
...you thought it would be, you don't understand how XSS protection works in Rails. Calling html_safe on the joined array will incorrectly bless the complete string as safe...
...string].join(' ').html_safe # will incorrectly render as ' foo bar ' with unescaped tags Good Rails >=3 safe_join([unsafe_string, safe_string], ' ') # will correctly render as '<span>foo...
...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...
...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...
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...
...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
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...
...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...
...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...
...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...
Rails offers a way to prepend (or append) view paths for the current request. This way, you can make the application use different view templates for just that request.
...action :prepare_views def index # ... end private def prepare_views if prepend_view_path Rails.root.join('app', 'views', 'special') end end end If is true, Rails will first look into app/views/special...
...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...
...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...
...Ruby projects. These projects use a large number of different versions for Ruby, Rails and many gems. To be able to switch between projects easily, we must control every dependency...
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
sudo gitlab-rails console Note This takes some minutes to start Send a mail Use the following command on the rails console to send an email.
...for Ruby 3.3: A nice API for the official Ruby standard library Ruby on Rails Since you will use Rails more than any other gem, you will always want its...
...documentation to be close: Rails API Rails guides ActiveSupport ActiveSupport extends core classes in Ruby. We are so used to having ActiveSupport around that we don’t even think of...