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@kyrylo
kyrylo / colorized_logger.rb
Last active November 20, 2025 17:49
Nice colorized logs for Rails apps! With this initializer, you can instantly colorize your Rails development logs. Just copy and paste the code, and it’ll work. https://x.com/kyrylosilin/status/1852308566201237815
# frozen_string_literal: true
# config/initializers/colorized_logger.rb
# This initializer adds color to the Rails logger output. It's a nice way to
# visually distinguish log levels.
module ColorizedLogger
COLOR_CODES = {
debug: "\e[36m", # Cyan
info: "\e[32m", # Green
warn: "\e[33m", # Yellow
@coolprobn
coolprobn / date_in_preferred_time_zone.rb
Created June 19, 2024 15:18
Convert any DateTime to the timezone you prefer while still keeping the same date and time - Ruby on Rails
def date_in_danish_time(date_time)
date_array =
date_time.strftime("%Y %m %d").split.map { |string| Integer(string, 0) }
danish_date = Date.new(*date_array).in_time_zone("Copenhagen")
# extracting offset from the date will help us in also taking care of Daylight Saving
danish_date_offset = danish_date.formatted_offset
date_time_array =
date_time
.strftime("%Y %m %d %H %M %S")
@basicfeatures
basicfeatures / rails_falcon_openbsd.md
Last active August 2, 2024 03:17

OpenBSD logo     Rails logo     Falcon logo


Choose OpenBSD for your Unix needs. OpenBSD -- the world's simplest and most secure Unix-like OS. A safe alternatve to the frequent vulnerabilities and overengineering of Linux and related software (NGiNX & Apache (httpd-asiabsdcon2015.pdf), OpenSSL, iptables/nftables, systemd, BIND, Postfix, Docker etc.)

OpenBSD -- the cleanest kernel, the cleanest userland and the cleanest config

@mabenson00
mabenson00 / cheatsheet.rb
Last active February 17, 2026 05:04
Rails Postgres ActiveRecord JSON cheatsheet
# Basic key operators to query the JSON objects :
# #> : Get the JSON object at that path (if you need to do something fancy)
# -> : Get the JSON object at that path (if you don't)
# ->> : Get the JSON object at that path as text
# {obj, n} : Get the nth item in that object
# https://www.postgresql.org/docs/9.4/functions-json.html#FUNCTIONS-JSONB-OP-TABLE
# Date
# date before today
@bjo3rnf
bjo3rnf / debounced-form.html
Last active June 14, 2022 17:41
Stimulus.js controller to debounce form submissions
<form method="post" data-controller="form-debounce" data-action="submit->form-debounce#debounce" data-form-debounce-is-submitting-class="submitting">
[...]
<button type="submit" data-form-debounce-target="submitButton">
Submit once
</button>
</form>
@m-radzikowski
m-radzikowski / script-template.sh
Last active February 27, 2026 03:13
Minimal safe Bash script template - see the article with full description: https://betterdev.blog/minimal-safe-bash-script-template/
#!/usr/bin/env bash
set -Eeuo pipefail
trap cleanup SIGINT SIGTERM ERR EXIT
script_dir=$(cd "$(dirname "${BASH_SOURCE[0]}")" &>/dev/null && pwd -P)
usage() {
cat <<EOF
Usage: $(basename "${BASH_SOURCE[0]}") [-h] [-v] [-f] -p param_value arg1 [arg2...]
@mahemoff
mahemoff / README.md
Last active October 24, 2025 20:08
Vim Terminal Mode - A short introduction

Vim has a Terminal Mode!

Since v8.1 (May 2018), Vim has shipped with a built-in terminal. See https://vimhelp.org/terminal.txt.html or type :help terminal for more info.

Why use this? Mainly because it saves you jumping to a separate terminal window. You can also use Vim commands to manipulate a shell session and easily transfer clipboard content between the terminal and files you're working on.

Key Bindings

@dommmel
dommmel / blob_authenticatable.rb
Last active July 12, 2023 01:01
Devise authentication for Rails' ActiveStorage
# Rails controller concern to enable Devise authentication for ActiveStorage.
# Put it in +app/controllers/concerns/blob_authenticatable.rb+ and include it when overriding
# +ActiveStorage::BlobsController+ and +ActiveStorage::RepresentationsController+.
#
# Optional configuration:
#
# Set the model that includes devise's database_authenticatable.
# Defaults to Devise.default_scope which defaults to the first
# devise role declared in your routes (usually :user)
#
@mrmartineau
mrmartineau / stimulus.md
Last active February 6, 2026 16:59
Stimulus cheatsheet
@cdesch
cdesch / rails_generator_cheat_sheet.md
Last active January 24, 2026 02:45
Rails Generator CheatSheet

Cheat Sheets are greate but they are not a substitute for learning the framework and reading the documentation as we most certainly have not covered every potential example here. Please refer to the Rails Command Line Docs for more information.

Command Line Generator Info

Reference

You can get all of this information on the command line.

rails generate with no generator name will output a list of all available generators and some information about global options. rails generate GENERATOR --help will list the options that can be passed to the specified generator.