michelson

class AsyncMethodJob < ApplicationJob
  queue_as :default

  def perform(target:, method_name:, args:, queue_name: :default)
    self.class.queue_as(queue_name)
    # `target` could be either an instance or a class
    target = target.constantize if target.is_a?(String)  # Convert class name to class object if needed
    target.send(method_name, *args)
  end
end

owaiswiz

# Unnecessary indexes slows down writes and consumes additional storage and memory.

# Just paste this snippet in your Rails console (bundle exec rails c).
# And it will print all redundant indexes that are already covered by another index on the table:
#   Table `pages`:  index `site_idx` (site_id) already covered by `site_slug_idx`   (site_id,slug)
#   Table `optins`: index `list_idx` (list_id) already covered by `list_active_idx` (list_id,active)


ActiveRecord::Base.connection.tables.map do |table|
  indexes = ActiveRecord::Base.connection.indexes(table).select(&:valid).reject(&:where) 

searls

# Leverages the BroadcastLogger introduced in Rails 7.1 to wrap the current
# logger in a new logger that broadcasts to both the current logger and $stdout
#
# (Announcement: https://rubyonrails.org/2023/9/29/this-week-in-rails)
#
# If the current logger already broadcasts to $stdout, it will not be wrapped,
# making it safe to call this method multiple times without knowing the current
# logging "sitch".
#
# Usage probably looks something like this:

adtac

#!/usr/bin/env -S bash -c "docker run -p 8080:8080 -it --rm \$(docker build --progress plain -f \$0 . 2>&1 | tee /dev/stderr | grep -oP 'sha256:[0-9a-f]*')"

# syntax = docker/dockerfile:1.4.0

FROM node:20

WORKDIR /root

RUN npm install sqlite3

YOU54F

So you've got a cool app in Ruby, and you want to share it with your friends, but they don't love Ruby as much as you.

What do you do? Package it up along with the Ruby runtime and give it to them. Simple right? Maybe not so.

Thankfully smarter cookies than me, have tackled the problem, here is a map of the current state of play

• Traveling-ruby
  • revisted for Ruby 2.6.10 -> 3.3.0-preview1 and arm64 MacOS/Windows in this fork
    • PR proposed upstream here
• Rb2exe revisted to use the updated traveling-ruby releases in this fork

jnunemaker

-- https://www.postgresql.org/docs/current/fuzzystrmatch.html#id-1.11.7.26.7
-- Calculates the distance between two strings.

SELECT levenshtein('New York', 'New York'); -- 0
SELECT levenshtein('New York', 'New Jersey'); -- 5
SELECT levenshtein('New York', 'Dallas'); -- 8

-- find the opponent with the name closest to 'New York'
SELECT * FROM opponents WHERE team_id = 1 
  ORDER BY levenshtein(name, 'New York')

dorianmariecom

# requires :password_reset_token and :password_reset_token_expires_at fields
module PasswordResetable
  extend ActiveSupport::Concern

  included do
    before_validation do
      if password_reset_token_expires_at && password_reset_expires_at.past?
        expire_password_reset!
      end
    end

cpursley

PostgreSQL is Enough

• Simplify: move code into database functions
• Just Use Postgres for Everything
• PostgreSQL is the worlds’ best database
• Postgres is eating the database world
• Hacker News discussion

Background and Cron Jobs

flickgradley

Measure = Data.define(:amount, :unit) do
  def diff(other)
    raise ArgumentError.new("other must be same class") unless other.is_a?(self.class)

    members.inject({}) do |memo, key|
      thisVal, otherVal = send(key), other.send(key)
      memo[key] = [thisVal, otherVal] unless thisVal == otherVal
      
      memo
    end

sharadhr

$HOME, Not So Sweet $HOME

• Preface
• 1 What is $HOME to you?
• 2 Setup
  • 2.1 Linux
    • 2.1.1 $HOME
    • 2.1.2 Dot-files and dot-directories
    • 2.1.3 XDG Base Directories
• 2.1.4 xdg-user-dirs