...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...
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...
...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...
...our older projects, we use the mysql2 gem. Unfortunately, versions 0.2.x (required for Rails 2.3) and versions 0.3.x (required for Rails 3.2) can no longer be installed on...
...to errors when compiling the native extension, or a segfaults when using it. For Rails 4.2, mysql2 version 0.4.10 seems to work okay. If you still have issues, upgrade to...
...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...
Use gem 'mysql2', git: 'https://github.com/makandra/mysql2', branch: '0.2.x-lts' # for Rails 2.x gem 'mysql2', git: 'https://github.com/makandra/mysql2', branch: '0.3.x-lts' # for Rails...
%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
Here is how to start your Rails application to accept both HTTP and HTTPS in development. gem install passenger Create a self-signed SSL certificate. Store the generated files in...
...INFO -- : [53a240c1-489e-4936-bbeb-d6f77284cf38] more Goal When searching through Rails logs on production, it's often hard to see all lines that belong to the same requests, since...
...pass your string or stream directly. >> Attachment.create!(file: FileIO.new(contents, 'document.pdf')) => # When using zeitwerk (Rails 6) you might also need to add an inflection in order to make autoloading work...
...So might fix this by adding the following lines to your application.rb: class Application < Rails::Application config.time_zone = 'Berlin' # or whatever your time zone end It seems Date.yesterday uses the...
...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:
...for example, you maintain a gem and want to run automated tests against multiple rails versions. When you need to bundle one of your secondary Gemfiles, the solution above is...
...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...
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...
Large Rails projects tend to define multiple custom ways to format Dates or DateTimes. This often leads to duplicated format strings, wrong formats and unnecessary introduction of new formats.
...need to configure this if you're using system tests with modern versions of Rails. They do exactly the same
...preprocessed: true end end Preprocess this version for all existing records bundle exec rails runner 'User.find_each { |user| user.avatar.variant(:preview).processed }' Use the new variant and deploy
...an instance of its subclasses or superclass. This is useful because some parts of Rails reflect on the class of an instance, e.g. to decide which partial to render:
...et dolore magna aliqua. Mi eget mauris pharetra et ultrices neque." output_mp3_path = Rails.root.join("tts/ipsum.mp3") new Synthesizer(input_text, output_mp3_path).to_mp3 Code require "ruby-openai"
...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|
...use SimpleForm in your project, I would suggest to regenerate the configuration file with rails generate simple_form:install --bootstrap and merge it with your own customizations instead of only...