janko

require "active_record"

ActiveRecord::Base.establish_connection(adapter: "sqlite3", database: ":memory:")
ActiveRecord::Migration.class_eval do
  create_table(:records) do |t|
    t.string :column
  end
end

data = 50_000.times.map { |i| Hash[column: "Column #{i}"] }

mbajur

How to create small, unique tokens in Ruby

That is is basically a "fork" of blog article i'm constantly returning to. It seems that the blog is down:

• Original article
• Internet Archives

My choice: Dave Bass’s rand().to_s() trick

Dave Bass proposed this which I picked up for my implementation (here for an 8-chars token):

thevangelist

import React from 'react';
import { shallow } from 'enzyme';
import MyComponent from '../src/my-component';

const wrapper = shallow(<MyComponent/>);

describe('(Component) MyComponent', () => {
  it('renders without exploding', () => {
    expect(wrapper).to.have.length(1);
  });

tkfm-yamaguchi

---/usr/share/source-highlight/lang.map.old
+++/usr/share/source-highlight/lang.map
@@ -169,3 +169,5 @@
 groovy = groovy.lang
 json = json.lang
 feature = feature.lang
+yaml = yaml.lang
+yml = yaml.lang

stevensona

# Keep delayed job workers running using systemd on ubuntu
# Usage
# Start "sudo systemctl start delayed_job@{0..3}" to start 4 worker instances
# Enable "sudo systemctl enable delayed_job@{0..3}" to enable 4 worker instances
# Restart "sudo systemctl restart delayed_job@{0..3}" to restart 4 worker instances
# Disable "sudo systemctl disable delayed_job@{0..3}" to disable 4 worker instances
# Stop "sudo systemctl stop delayed_job@{0..3}" to stop 4 worker instances

[Unit]
Description=Delayed Job Worker %i

ceejbot

ESM modules in node: npm edition

The proposal you’re about to read is not just a proposal. We have a working implementation of almost everything we discussed here. We encourage you to checkout and build our branch: our fork, with the relevant branch selected. Building and using the implementation will give you a better understanding of what using it as a developer is like.

Our implementation ended up differing from the proposal on some minor points. As our last action item before making a PR, we’re writing documentation on what we did. While I loathe pointing to tests in lieu of documentation, they will be helpful until we complete writing docs: the unit tests.

This repo also contains a bundled version of npm that has a new command, asset. You can read the documentation for and goals of that comma

jb-gomez

#
# A:
# pubsub = PgPubSub.new('channelname')
# pubsub.subscribe do |data|
#  puts "data: #{data} is coming!"
# end
#
# B:
# pubsub = PgPubSub.new('channelname')
# pubsub.publish("hello world")

virolea

# Use this validator like this
#
# class User < ApplicationRecord 
#   validates :profile_link, url: true
# end 

class UrlValidator < ActiveModel::EachValidator
  def validate_each(record, attribute, value)
    unless valid_url?(value)
      record.errors.add(attribute, :invalid_url)

joeldrapper

# frozen_string_literal: true

module Fingerprinting
	def full_fingerprint
		generate_fingerprint(
			ip_fingerprint,
			browser_fingerprint
		)
	end

timothyham

A Short IPv6 Guide for Home IPv4 Admins

This guide is for homelab admins who understand IPv4s well but find setting up IPv6 hard or annoying because things work differently. In some ways, managing an IPv6 network can be simpler than IPv4, one just needs to learn some new concepts and discard some old ones.

Let’s begin.

First of all, there are some concepts that one must unlearn from ipv4:

Concept 1