Sometimes we write plain SQL queries in migrations so we don't have to mock ActiveRecord classes. These two migrations do the same: class Migration1 < ActiveRecord::Migration[5.2]
...Migration2 < ActiveRecord::Migration[5.2] def up add_column :users, :trashed, :boolean update("UPDATE users SET trashed = #{quoted_false}") end end The plain SQL migration is less code, but has a...
...If you are plucking from the id column in particular you can also say: User.active.ids => [1, 5, 23, 42] For a DISTINCT selection, use distinct on your scope (not the...
...resulting array). Article.distinct.pluck(:state) # SELECT DISTINCT state FROM articles => ['draft', 'published'] In Rails 3 and 4 you must use uniq instead of distinct: Article.uniq.pluck(:state) # SELECT DISTINCT state FROM articles...
tl;dr: Ruby's Bundler environment is passed on to system calls, which may not be what you may want as it changes gem and binary lookup. Use Bundler.with_original...
...env to restore the environment's state before Bundler was launched. Do this whenever you want to execute shell commands inside other bundles. Example outline Consider this setup: my_project/Gemfile...
The issue: You are using stub_const to change a constant value for your test. stub_const "SomeClass::CONST", 'test' All of a sudden, tests fail with undefined method 'some...
...method' for # . The reason When using stub_const before the Class containing the constant has been loaded, a module is automatically created with the name. Since RSpec does no autoloading...
...use the puppetdb_query feature. This can result in more complex code but has several benefits: you can use more complex puppetdb queries to get the resources you want than...
...db', $vhost['parameters']['dbuser'], { 'password' => $vhost['parameters']['dbpassword'], 'type' => $type, 'extensions' => $vhost['parameters']['dbextensions'], 'schemas' => $vhost['parameters']['dbschemas'], 'charset' => $vhost['parameters']['dbencoding'], 'collate' => $vhost['parameters']['dbcollate'], 'host' => $host, }) }
...optimize the experience. Using capistrano-rails capistrano-rails is a Gem that adds Rails specifics to Capistrano, i.e. support for Bundler, assets, and migrations. While it is designed for Asset...
...Pipeline (Sprockets) assets, it can easily be configured for Webpacker. This brings these features to the Webpacker world: Automatic removal of expired assets Manifest backups # config/deploy.rb # No need to include...
Most browsers have built-in drag and drop support for different page elements like text and images. While this may be useful in most situations, it may become annoying in...
...functionality. This does no longer work. You may now achieve this by explicitly preventing the startdrag-event:
const noDragElement = document.querySelector('no-drag-pls') noDragElement.addEventListener('dragstart', event => event.preventDefault())
...about half of our curriculum deck! 🎉 We've covered the basics of your future stack and are about to dive deeper in some more advanced topics. A few things before...
...curriculum cards every other monday Read the article "Parting advice from an older Software Engineer". Try to memorize the key takeaways of 1-5 on the list. Watch Dominik's...
In Rails, we usually have a mailer setup like this: class MyMailer < ActionMailer::Base def newsletter mail to: 'receiver@host.tld', from: 'sender@host.tld', subject: 'My mail' end end If you want to...
...Rails will print the mail's text representation to your log/development.log. You may also save this output as-is to an .eml file and open it with your mail client...
...Layouts tab you have handy options to debug CSS Flexbox and Grid. Including: Display size and lines along with labels Changing their attributes Change how overlay is colored and fastly...
...switch nested elements in the Elements panel This guide will only cover some example gif recordings on how to use with Grid, since it's basically straight forward to apply...
jQuery's removeClass removes the given class string from an element collection. If you want to remove multiple/unknown classes matching a given pattern, you can do that. For example, consider...
...node for the following HTML. We'll reference it by $element below. Option A: Selecting classes, then removing them You can iterate over existing classes, and select matching ones. The...
In a nutshell: return statements inside blocks cause a method's return value to change. This is by design (and probably not even new to you, see below) -- but can...
...a problem, for example for the capture method of Rails. Consider these methods: def stuff puts 'yielding...' yield puts 'yielded.' true end We can call our stuff method with a...
...don't only have a favicon.ico in your project but also PNGs of different sizes and backgrounds, you should test if all those files are actually reachable.
...few selectors to get you started: 'link[rel~="icon"]' # regular ones, matches "shortcut icon" and "icon" 'link[rel="apple-touch-icon"]' # iOS 'meta[content][name="msapplication-TileImage"]' # IE11 'meta[content...
...into your Webpack's assets folder or write an npm package with an own sass file that can be imported from the Webpack manifest. Load fonts from your assets folder...
...The first option turns out to be straightforward: Import the stylesheets in the index.js of the pack you're using: // webpack_source_path/application/index.js import './stylesheets/reset' import './stylesheets/main' // loads the fonts...
...a remote API, check out the VCR gem as an alternative to Webmock or stubbing hell. The idea behind VCR is that is performs real HTTP requests and logs the...
...in a .yml file. When you run the test again, requests and responses are stubbed from the log and the test can run offline. It's a great way to...
Some users might use Adblock Plus or similar browser plugins to reduce the number of ads displayed. If you run into an issue that your application or part of an...
...our web apps. But if your application uses iframes or is embedded in another site it's more prone to it. Blocked elements most of the time appear to the...
The closest is probably Nimbus Sans L, which is released under the GPL, AFPL, LPPL licenses. However, I couldn't find a way to convert Nimbus Sans L into a...
I finally settled with Liberation Sans, which is awesome for some reasons: Although it's available for free, it's a high quality font because its creation was...
In Cucumber, scenario outlines help avoiding tests that are basically the same, except for a few variables (such as different inputs). So far, nothing new. The problem
...your test should (or should not) do something, like filling in a field only for some tests? Scenario Outline: ... When I open the form And I fill in "Name" with...
...modern JavaScript down to EcmaScript 5. Depending on what browser a project needs to support, the final Webpack output needs to be different. E.g. when we need to support IE11...
...JavaScript features. Hence 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...
...has its weak points, but I want to point out that it has clear strengths, too. Pro Simple and beautiful interface. Outstandingly organized source code. Have never seen a JS...
...toolbar buttons, pass various callbacks, etc. Features a collection of great plugins. Easily extendable by self-made plugins. It is really simple to write one – see example below.
...to do it. Make an educated decision: Is the code change worth the effort? Stay straight on track, don't go astray. Note: Usually, you'd refactor after finishing your...
...story. At times, it might be necessary to refactor up front. But try to keep refactoring out of your current task. Knowing where to optimize Things should only be optimized...
I recently did a quick research on how to better write down multiline statements like this: # Dockerfile RUN export DEBIAN_FRONTEND=noninteractive \ && apt-get update \ && apt-get dist-upgrade -y...
...apt-get install --no-install-recommends --no-install-suggests -y \ ca-certificates \ curl \ unzip It turns out, there is! Buildkit, the tool behind docker build added support for heredoc strings...
...some beyond 50MB. Unless you need to offer this large files, you should always shrink uploaded files to a reasonable resolution. class ImageUploader < CarrierWave::Uploader::Base process resize_to_limit...
...GitHub repository is a bit like our "dev" cards deck, but groomed from a single person (Josh Branchaud). It includes an extensive list of over 900 TILs on many topics...
...TILs that were new to me. I encourage you to take your time to skim over the original list as well! Assoc For Hashes Hash#assoc can be used to...