Given there is a user with an attachable avatar: class User < ApplicationRecord has_one_attached :avatar end
The key to unlocking the full potential of LLMs in coding lies in crafting precise prompts. The main challenge is...
Ubuntu 24 added some guarding for Python packages which no longer allows installing applications through pip on system level. Instead...
Here is a bash script that I use to auto-configure displays on Ubuntu 24.04 with Xorg. Background
When debugging slow SQL queries, it’s helpful to understand the database engine's query plan. Whenever you execute a...
Using ffmpeg, you can easily re-encode a video to reduce its file size. Command Do it like this:
Hint If you are using our opscomplete.com hosting we can set all environment variables mentioned below for your deployment on...
If you need to pre-generate a scram-sha256 password hash for use with postgres, e.g. for using it with...
In Slack, the settings dialog only offers a fixed selection of fonts. You can use any font you like using...
This decision tree describes how to use the alt attribute of the element in various situations. For some types of...
Rails wraps your parameters into an interface called StrongParameters. In most cases, your form submits your data in a nested...
Elements can be hidden and shown by toggling the display property. However, this is not animatable, so we often turn...
The new params.expect method in Rails 8 improves parameter filtering, addressing issues with malformed input and enhancing security. It provides...
Bundler allows you to specify the name of the Gemfile you want to bundle with the BUNDLE_GEMFILE environment variable...
Also see the list of IRB commands. Switching the context Changes the "default receiver" of expressions. Can be used to...
To reverse lookup a fixture by its table name and id, use the following approach on ActiveRecord::FixtureSet: table = 'users...
Your package-lock.json should always match and resolve all packages from your package.json. Coming from Yarn, I was looking for an...
With Ubuntu 24.04 it's not longer possible to setup FDE with BTRFS The new installer won't offer you...
TL;DR: Rails ships two methods to convert strings to constants, constantize and safe_constantize. Neither is safe for untrusted...
In development, we store files using ActiveStorage's disk service. This means that stored files are served by your Rails...
If you update Selenium regularly, you'll run into deprecation warnings similar to: WARN Selenium [:clear_local_storage] [DEPRECATION] clear...
tl;dr When a cookie includes an Expires attribute or an HTTP response includes caching headers like Expires or Cache...
When setting up cronjobs, commands somtimes output something every time. If these commands don't support limiting their output to...
In FactoryBot factories, Rails' file_fixture is not available by default. To enable it, include a support module from rspec...