...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...
Rails' ActiveSupport::TimeWithZone objects have both a timezone code and offset, e.g. Thu, 28 Mar 2019 16:00:00 CET +01:00. Ruby's stdlib TZInfo also has time zones...
...chances are you'll end up in the wrong time zone. This is why Rails actually uses a long list of time zone names with have names like "London" or...
...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...
...used to match rows without knowing a secret token: Potential Query Manipulation with Common Rails Practises CVE-2013-3211 MySQL madness and Rails
Adding the asset cache directory to symlinked directories Popular asset managers for Rails are Sprockets and Webpacker. Both keep a cache of already compiled files that we're...
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...
...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...
...application server without configuration Usage Install Passenger Standalone with gem install passenger Inside any Rails project, start Passenger Standalone with passenger start Alternatives You can use Puma. It also supports...
...Probably the best approach is to just convert emails (and usernames) to lowercase within Rails. Popular authentication libraries (like Clearance and Devise) already do this for you...
} start your server as usual, but go to https://localhost:3000 bundle exec rails s Accept the certificate in your browser See also Creating a self-signed certificate for...
...deployed to the servers. The gems of these groups might not be loaded by rails, however, the deployment process will take longer as the gems will be downloaded and installed...
...allows you to log to multiple sinks. You know this behavior from from the rails server command, that both logs to standard out and the log/development.log file.
...development.log file. Here is an example for Sidekiq: Sidekiq.configure_client do |config| if ENV['RAILS_ENV'] == 'development' || ENV['RAILS_ENV'] == 'test' stdout_logger = ActiveSupport::Logger.new(STDOUT) file_logger = ActiveSupport::Logger.new...
To reload a single-item association in Rails 5+, call #reload_ : post.reload_author In older Railses you can say post.author(true...
...excludes quote characters so you can easily paste the secret into a Ruby string Rails can also generate secrets that can be used for secret_key_base: $ bin/rails secret 5693040b90b1b09d0a73364d950f15e3a9604403c8e81c6e5bb8b51d0981ef3bbde15a52bf5df41ac4974675bb8e31d69d03490dc11abd1086c873783d1be607
...mind that you may need to migrate your database as Git is unaware of Rails and will not cast any magic. If Git checked out a commit that is working...
ORDER BY category DESC, created_at; The easiest options to achieve this in Rails ActiveRecord is to use "WHERE ID IN" with User.where(id: Post.distinct_on_user.pluck(:user_id)).order(...)
...ETag for responses that only differ in CSRF tokens or CSP nonces. By default Rails uses Rack::ETag to generate ETag headers by hashing the response body. In theory this...
...would enable caching for multiple requests to the same resource. However, since most Rails application layouts insert randomly rotating CSRF tokens and CSP nonces into the HTML, two requests for...
...also use Cookies with cURL. For easily making HTTP requests in an IRB or Rails console, take a look at the HTTP gem. If you prefer a GUI, take a...
where html_content can be replaced by one of the following commands: Rails body or response.body Capybara: page.driver.html.content page.body Webrat: Nokogiri::HTML(response.body).content The returned strings can...
...need to configure this if you're using system tests with modern versions of Rails. They do exactly the same
...The following setup allows you to start Terminator in a split view with the Rails server running in the left pane and all remaining processes running via foreman in the...
type = Terminal parent = child1 profile = default command = env startup_cmd="bundle exec rails server" startup_attrs="-p 3000" bash [[[terminal3]]] type = Terminal parent = child1 profile = default command = 'env startup...
...we still recommend the solution in this card. If you need to synchronize multiple rails processes, you need some shared resource that can be used as a mutex. One option...
%span Reference %pre ~ content Reference Hello World Textareas In some versions of Haml + Rails, this may also be an issue for textarea elements. Fix it similarly: # Indented description
...animated GIFs. Resizing them can be a time-consuming task and will block a Rails worker until the image is processed. Save yourself that trouble, and simply tell ImageMagick to...