...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...
JavaScript files that can be loaded individually from your application layout. By default your Rails application has a single entrypoint application.js, which should import all other files.
...use the String#strip_heredoc method from ActiveSupport. See Summarizing heredoc in ruby and rails for an example. Technically, it looks for the least indented line in the whole string...
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(...)
...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...
Understand that each call of a cron job will boot up your Rails application and produce 100% load on a CPU during booting. Talk to your mentor what...
...in all needed sizes, formats and with the HTML needed to include them! In Rails applications with Haml: put all the favicon files into /public store the HTML to app/views/layouts/_favicon.html...
...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...
%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
config.action_controller.action_on_unpermitted_parameters enables logging or raising an exception if parameters that are not explicitly permitted are found. Set to :log or :raise to enable. The default...
...value is :log in development and test environments, and false in all other environments. Rails 3: If you include the strong_params gem, see the Readme for handling unpermitted keys...
...like app/inputs/grouped_collection_select_input.rb (SimpleForm will pick it up automatically; if it does not, restart your Rails server) and use it in your form with that new :group_by option.
If you migrate a Rails application from Sprockets to Webpack(er), you can either transpile your CoffeeScript files to JavaScript or integrate a CoffeeScript compiler to your new process. This...
...notably, it allows you to represent data in a very readable manner. For example, Rails offers a compact DSL to define new routes. A big drawback however is that your...
...generated for associations. Warning Don't use query_attribute on associations. In case of Rails 7 you are getting an error. In Rails 6 this method is always responding with...
...method's source code If your Gemfile comes with method_source (a dependency of Rails 7+), you can can inspect the source code directly using the Method#source method:
...repositories. It's basically "Open Source Development 101". Way back in mid-2007, when Rails 1.2 was the new hotness and GitHub was still a year away from crawling out...
...saved to database directly as the the dumped object was not marked dirty, thus rails does not see the need to save it, even if the object is not present...
...add the following tests to test suites: # Make sure to require the previews Dir[Rails.root.join('spec/mailers/previews/*.rb')].each { |file| require(file) } ActionMailer::Preview.all.index_with(&:emails).each do |preview, mails|
Webpack is the future. We're using it in our latest Rails applications. For tests, we want to compile assets like for production. For parallel tests, we want to avoid...
...Dir.empty?(public_output_path) end delegate :public_output_path, to: :config private def test? Rails.env.test? end def parallel_tests? test? && !!parallel_tests_number end def parallel_tests_number
...you really want to manage Example One example is used by us in environments::railscomplete::dbcollector: $vhost_types = ['\'Environments::Elixir::Vhost\'', '\'Environments::Rails::Vhost\'', '\'Environments::Php::Vhost\'', '\'Environments::Python::Vhost...
...query("resources {type in ${vhost_types} and parameters.dbbackend = '${dbbackend}'}") $vhosts.each |$vhost| { ensure_resource('environments::railscomplete::db', $vhost['parameters']['dbuser'], { 'password' => $vhost['parameters']['dbpassword'], 'type' => $type, 'extensions' => $vhost['parameters']['dbextensions'], 'schemas...
...our output will be more verbose than when we only need support modern browsers. Rails 5.1+ projects often use Webpacker to preconfigure the Webpack pipeline for us. The default configuration...
...have to run a separate process. # You'll also benefit from code reloading. if Rails.env.development? require 'sidekiq/testing' Sidekiq::Testing.inline!