When a user shares your content, a snippet with title, image, link and description appears in her timeline. By default social networks will use the window title, the first image...
...the current URL and some random text snippet for this purpose. This is often not what you want. Luckily Facebook, Twitter, etc. lets you control how your content appears in...
You have uncommited changes (you can always check by using git status), which you want to discard. Context Now there are several options to discard these depending on...
...your exact situation. The headlines will differentiate the cases whether the files are staged or unstaged. Staged and unstaged changes Staged changes Unstaged Changes Staged and unstaged changes
...command-line tool for REPL (Read Eval Print Loop). Type gem help info to see a list of available switches. Note that the Ruby API offers a bit more insight...
...Gem Ruby API (at runtime) First, get the Gem::Specification of the gem you are looking for. That object holds all the information from the gem's gemspec file, and...
When you create a temporary file (e.g. to store a generated Excel sheet) and try to send it to the browser from a controller, it won't work by default...
...this controller action: class FoosController < ApplicationController def download file = Tempfile.new('foo') file.puts 'foo' file.close send_file file.path end end Accessing this controller action will usually raise a 404 not found...
min-width is known as a CSS property that can be set to define a least width for an element. Surprisingly, it can also be used to set something that...
...it is more like "auto". This can make block elements take up much more space than desired, even stretching their container beyond the screen edge on small screens.
...in licensing, we cannot provide Elasticsearch versions >= 8.0. Version 7.17.x will reach EOL status with the release of Elasticsearch version 9. We have decided to use OpenSearch as a...
...replacement, since it is a fork of Elasticsearch version 7.10.2, still running under the previous licensing model and wire-compatible. A more detailed reasoning can be found on their website...
Follow the installation guidelines at https://mise.jdx.dev/getting-started.html. Remove rbenv configuration Search for rbenv config in .bashrc and .profile and remove it: eval "$(rbenv init - bash)"
...rbenv config in .profile and remove it: source /home/$user/.rbenvrc Remove nvm configuration Search for nvm config in .bashrc and remove it: export NVM_DIR="$HOME/.nvm" [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM...
...a MacBook that uses an M1 or M2 Chip. Documentation on the Internet is sparse and not even the Geniuses at the Genius Bar are 100% sure. We found out...
...your MacBook, using more than one external display is only possible with workarounds. Docking stations Whenever you're considering using more than 1 external display, it makes sense to consider...
...posts; if you use pagination the queries will be more complicated, but the point still stands. Looks harmless enough? It is not. The problem ActiveRecord will rewrite this into a...
...query using LEFT JOINs which looks something like this: SELECT "blog_posts".*, "comments".*, "attachments".* FROM "blog_posts" LEFT OUTER JOIN "comments" ON "comments"."blog_post_id" = "blog_posts"."id"
...always is to prevent long-running queries in the first place, automatic timeouts can serve as a safety net to terminate problematic queries automatically if a set time limit is...
...statement due to statement timeout (PG::QueryCanceled)). If multiple SQL statements appear in a single simple-query message, the timeout is applied to each statement separately. Set the timeout globally...
When you find similar groups of expect calls in your tests, you can improve readability by extracting the group into its own matcher. RSpec makes this easy by allowing matchers...
We can extract the repeated matcher chains into a custom matcher called be_shouting: expect(foo).to be_shouting expect(bar).to be_shouting Instead of re-implementing the...
...upgrade tasks according to its actual value. Consider to create and periodically maintain a summary, which helps you and your team in the decision which refactoring task should be taken...
Estimated Efforts Visible customer value Customer value explained Developer value Developer value explained Short title for the task Score from 0-5 Score from 0-5 Explanation
Systemd's networkd will drop IP-Addresses configured by other processes like Keepalived's VRRP, when it is restarted. This may happen on updates. To prevent this following settings are...
...critical: yes to /etc/netplan/50-cloud-init.yaml eth1: addresses: - 192.0.2.67/24 gateway4: 192.0.2.1 nameservers: addresses: - 198.51.100.42 - 198.51.100.53 search: - example.lcal critical: yes run netplan generate This will add the CriticalConnection to your networkd configuration...
Here are a few common patterns that will probably lead to flaky specs. If you notice them in your specs, please make sure that you have not introduced a flaky...
Using Capybara RSpec matchers One rule of thumb I try to follow in capybara tests is using capybara matchers and not plain rspec matchers. One example: visit(some_page...
...block evaluates to true. first_post_with_image = posts.find do |post| post.image end However, sometimes it's not the item you're interested in, but some value depening on it...
...image).find(&:present?).url If the mapping is a costly operation or has undesirable side effects, you need to do it in a single iteration instead. Single iteration solution with...
...can use ETags to allow clients to use cached responses, if your application would send the same contents as before. Besides what "actually" defines your response's contents, your application...
...probably also considers "global" conditions, like which user is signed in: class ApplicationController < ActionController::Base etag { current_user&.id } etag { current_user&.updated_at } end Under the hood, Rails generates...
Debouncing a method call delays its execution until after a specified time has passed. If it's called again before that time has passed, its execution is delayed again.
...would be run more often than it needs to. One example for that are scroll event handlers in JavaScript: You want to react to a user scrolling, but it's...
...record/replay cassettes for any RSpec example tagged as :vcr or vcr: true. If a spec is not tagged with :vcr, VCR will complain about any attempted HTTP request. This is...
...this off temporarily, e.g. to communicate with an actual API while writing a new spec, simply add the line c.allow_http_connections_when_no_cassette = true to the VCR.configure-block...
...with a nice way to grep through your project's files: The finder (ctrl + shift + f). Don't be discouraged about the notice 100+ matches in n+ files if your...
...searched keyword is too general or widely used in your project. RubyMine comes with a few ways to narrow down the resulting list, don't hesitate to apply those filters...
Applications often show or hide elements based on viewport dimensions, or may have components that behave differently (like mobile vs desktop navigation menus). Since you want your integration tests to...
...behave consistently, you want to set a specific size for your tests' browser windows. Using WebDriver options / Chrome device metrics For Google Chrome, the preferred way is setting "device metrics...
makandra's development process Learn about our process. The squares represent the state of the issue in Linear: In particular you should understand: Why do we have a process?
...is an issue (formerly: story)? What metrics does our process optimize for? How to divide large requirements into issues. When is an issue too small, when is it too large...
With passenger-status --show=requests you can get a huge JSON showing current information about the running passenger processes. This can be useful if you want to find out what...
...a passenger process is doing at the moment (for e.g. if one worker seems to be stuck): * PID: 4273 Sessions: 1 Processed: 47 Uptime: 50m 53s CPU: 43% Memory : 3644M...
...for file uploads. CarrierWave has an integrated processing mechanism for different file versions with support for ImageMagick through CarrierWave::MiniMagick (which requires the mini_magick gem). In case your processing...
...runs into an error, CarrierWave will just swallow it and rethrow an error with a very generic message like Processing failed. Maybe it is not an image? which does not...
GoodJob and ActiveJob rescue exceptions internally, preventing exception_notification from triggering. This can cause silent job failures.To get notified, subscribe to ActiveJob events and configure GoodJob's on_thread_error...
...job failures, as they are handled internally by ActiveJob/GoodJob. ActiveSupport::Notifications.subscribe(/(enqueue_retry|retry_stopped|discard)\.active_job/) do |event_name, *, payload| exception = payload[:error] job = payload[:job]