...when your application uses time zones. Background A time-zoned Time attribute on a Rails record is converted to UTC using to_s(:db) to be stored, and converted back...
...version "3.4.0" resolved "https://registry.yarnpkg.com/jquery/-/jquery-3.4.0.tgz#8de513fa0fa4b2c7d2e48a530e26f0596936efdf" integrity sha512-ggRCXln9zEqv6OqAGXFEcshF5dSBvCkzj6Gm2gzuR5fWawaX8t7cxKVkkygKODrDAzKdoYw3l/e3pm3vlT4IbQ== package.json { "dependencies": { "@rails/webpacker": "4.x", "bootstrap-datepicker": "1.8.0", # the package says it needs "jquery": ">=1.7.1 <4.0.0" as a dependency
...node_modules/jquery node_modules/bootstrap-datepicker/node_modules/jquery Actual issue Within the Rails Webpacker config we now provide a jQuery object to boostrap-datepicker: config/webpack/environment.js environment.plugins.prepend( 'Provide', new webpack.ProvidePlugin({ $: 'jquery', jQuery: 'jquery', 'window.jQuery': 'jquery...
...several gems that help to you do that, like Sidekiq or Resque. With newer Rails you can also use ActiveJob as interface for a background processing library. See here for...
end and a features/support/active_job.rb with: # Jobs should be worked off immediately in tests Rails.application.config.active_job.queue_adapter = :inline
...This could be your (very careless) controller method: def generated send_file File.join(Rails.root, 'shared', 'invoices', params[:number]) end This allows your users not only to access those files but...
...directory of the files as the first parameter, like so: send_file_inside File.join(Rails.root, 'shared', 'invoices'), params[:number] Do not use only Rails.root -- this would allow access to config/environment.rb...
...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...
When I sign in as "carcar79" Patch to make it work for Rails 2 For Rails 2, the last line of find_by_anything needs to be changed...
...bar']) => /tmp/foo20220912-14561-3g93n1bar You can choose a different base directory than Dir.tmpdir e.g. Dir.mktmpdir('foo', Rails.root.join('tmp')) => /home/user/rails_example/tmp/foo20220912-14561-pyr8qd. This might be necessary when your tests are running on CI. For this...
...something with a temporary directory' do # ... end Option 4: Without Dir.mktmpdir Use something like "#{Rails.env}#{ENV['TEST_ENV_NUMBER']}" in you directory path when using Dir.mkdir. Further reading:
Returning an empty scope can come in handy, e.g. as a default object. In Rails 4 you can achieve this by calling none on your ActiveRecord model. MyModel.none # returns an...
...empty ActiveRecord::Relation object For older Rails versions you can use the attached initializer to get a none scope...
...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...
...delay of ~1 minute. Note: This setup does not work, when you use the Rails driven_by method with a binary preloading for parallel tests. CI Optionally you can use...
...a month or a year. Next, start your application server for HTTPS. For a Rails application with Puma: bin/rails server -b 'ssl://0.0.0.0:3000?key=development.key&cert=development.crt'
...many more processes than just your tests while your test suite is running: The Rails server booted by each test process (in a separate process) The Chrome browser started by...
...is good programming practice to Don't Repeat Yourself (or DRY). In Ruby on Rails we keep our code DRY by sharing behavior by using inheritance, modules, traits or partials...
Params are tricky Testing for request params is a little tricky because Rails hides details about how HTTP works. In particular GET requests encode their params in the URL...
...insert many records is to have a single INSERT statement describing multiple rows. In Rails 6+ you can do so with ActiveRecord::Base.insert_all. This is very fast, but you...
...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.
...an alternative to PostgreSQL fulltext search A simple example with a GIN index in Rails for optimizing a ILIKE query
...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...
...shell commands inside other bundles. Example outline Consider this setup: my_project/Gemfile # says: gem 'rails', '~> 3.0.0' my_project/foo/Gemfile # says: gem 'rails', '~> 3.2.0' And, just to confirm this, these are the...
...installed Rails versions for each of the bundles: ~/my_project$ bundle show rails .../gems/rails-3.0.20 ~/my_project$ cd foo && bundle show rails .../gems/rails-3.2.13 Now you will usually just use bundle exec to run...
...use a light terminal theme Improving Diffs for Ruby, RSpec and Cucumber files See Rails developers: Have better context in Git diffs. This will correctly identify the beginning of a...
...Best practices for writing code comments Read the following chapters from our book Growing Rails Application in Practice: Dealing with fat models Extracting service objects Discuss with your mentor what...
...used to match rows without knowing a secret token: Potential Query Manipulation with Common Rails Practises CVE-2013-3211 MySQL madness and Rails
...your view might be too isolated, since view-specs will mock a lot of rails behavior and render the view independent from the controller-logic. Therefore it will be more...
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...