Rails 7.1 added a new method Rails.env.local?. If you want to stub the Rails env correctly, use ActiveSupport::EnvironmentInquirer like this: # check if the value of stubbed_env is valid...
...allow(Rails).to receive(:env).and_return(ActiveSupport::EnvironmentInquirer.new(stubbed_env.to_s...
You can improve your LIKE / ILIKE search queries in PostgreSQL by adding a GIN index with an operate class ("opclass...
...the Ruby code in your specs. But it can shadow your Project model when Rails resolves an association class by name — and it only does so when the two spec...
...Nothing here changes how app/models/** resolves constants. So you need all three at once: a Rails-managed class defined inside an example group, a group whose description camelizes to a...
Rails has always included a scaffold script that generates a default controller implementation for you. Unfortunately that generated controller is unnecessarily verbose. When we take over Rails projects from other...
...We prefer a different approach. We believe that among all the classes in a Rails project, controllers are some of the hardest to test and understand and should receive special...
I have a form with a dynamic number of fields. Submitting it worked fine until I tried out a very...
When putting phone numbers into web pages, you should use tel: links so smartphone users can click those numbers to...
Getting CSS (and JS) live reloading to work in a esbuild / Rails project is a bit of a hassle, but the following seems to work decently well. We assume that...
...you already use a standard "esbuild in Rails" setup, and have an esbuild watcher running that picks up your source code in app/assets and compiles to public/assets; if not change...
After an upgrade to rails 7 I noticed that async reindexing jobs of Searchkick were failing for Model.reindex(mode: :async, wait: true): /home/a_user/.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/searchkick-5.3.1/lib/searchkick/relation_indexer.rb:142:in `block in batch_job': undefined...
...setups. This can become pretty messy. The trick: spin up throwaway controllers with rspec-rails' anonymous controller helper, drive real requests, and classify the response. Simplest possible case
...SomeController isn't sufficient here. It isolates routes. A bare routes.draw mutates the global Rails.application.routes. The helper swaps in a fresh RouteSet and restores it afterwards. It names the subclass...
We are using assignable_values for managing enum values in Rails. Nevertheless Rails is adding more support for enum attributes, allowing to have a closer look at the current feature...
...to our still preferred option assignable_values. Active Record enum attribute interface By default Rails is mapping enum attributes to integers: class Conversation < ActiveRecord::Base enum :status, [ :active, :archived ]
To return non-HTML responses (like XLS spreadsheets), we usually use the respond_to do |format| format.xls do # send spreadsheet...
When deleting a record in your Rails app, Carrierwave automatically takes care of removing all associated files. However, the file's container directory will not be removed automatically. If you...
Ever needed to use a global variable in Rails? Ugh, that's the worst. If you need global state, you've probably reached for Thread.current. When you're using Thread.current...
...can specify your preferred version like so: bundle _2.1.2_ update --bundler Older Ruby and Rails cannot use the latest bundler 2 version, so you need to stay on bundler...
...term, you can use PostgreSQL’s trigram similarity search. Writing a fuzzy query in Rails User.where("similarity(name, ?) > 0.3", "John") This finds all users where the name is similar to...
...you most likely want to use this in combination with the ActionDispatch::AssumeSSL middleware (Rails >= 7.1). This middleware makes your app assume that SSL terminates at the load balancer and...
...custom middleware to automatically flag all cookies as secure-only In a Ruby on Rails app you can add a middleware that automatically sets the Secure flag to all server...
ActiveSupport (since 4.1) includes test helpers to manipulate time, just like the Timecop gem: To freeze the current time, use...
...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...
Quick reference for passing data from Rails to JavaScript via Unpoly compilers. Haml Attribute Syntax # Ising hash rockets and string symbols (method calls) = form.text_field :name, 'date-picker': true
...have to either: Sort both the query and database content. If you're on Rails 7.1 you can use the new normalizes macro for this. This solution would still use...
Calling create or build on relations When you call create (or build) on a relation, the newly created record inherits...
If you run a Rails app that is using Turbo, you might observe that your integration tests are unstable depending on the load of your machine. We have a card...
I recently stumbled upon the Rails feature composed_of. One of our applications dealt with a lot of addresses and they were implemented as 7 separate columns in the DB...
...enforced that. Because I used a regular class, I had to build it myself. The Rails-native readonly is sadly only available with ActiveRecord, not with ActiveModel. It would have...
Background information about session storage in Rails Rails has a default mechanism to store the session in the CookieStore. This is a cookie which holds the entire user session hash...