George Opritescu International

Arel Cheatsheet on Steroids

A (more) complete cheatsheet for Arel, including NamedFunction functions, raw SQL and window functions.

Tables

posts = Arel::Table.new(:posts)
posts = Post.arel_table # ActiveRecord

Table alias

Keybase proof

I hereby claim:

I am international on github.
I am geop (https://keybase.io/geop) on keybase.
I have a public key ASAOEA9l_PrYrM5fEDzusoKpx7ZuSCQhCHiG7aVz2uEzogo

To claim this, I am signing this object:

Rails 5.2 with webpacker, bootstrap, stimulus starter

This gist will collect all issues we solved with Rails 5.2 and Webpacker

Create Project

# Last few parameters(--skip-* part) is only my habbit not actully required
$ rails new <project_name> --webpack=stimulus --database=postgresql --skip-coffee --skip-test

This list is based on aliases_spec.rb.

You can see also Module: RSpec::Matchers API.

matcher	aliased to	description
a_truthy_value	be_truthy	a truthy value
a_falsey_value	be_falsey	a falsey value
be_falsy	be_falsey	be falsy
a_falsy_value	be_falsey	a falsy value

	#!/bin/bash
	sudo apt-get -y install python-software-properties
	sudo add-apt-repository ppa:keithw/mosh
	sudo apt-get update
	sudo apt-get -y install mosh
	mkdir -p .config/nvim
	curl -L https://github.com/neovim/neovim/releases/download/nightly/nvim.appimage > /tmp/nvim.appimage
	sudo mv /tmp/nvim.appimage /usr/bin/nvim
	chmod +x /usr/bin/nvim
	curl -fLo ~/.local/share/nvim/site/autoload/plug.vim --create-dirs \

	set nocompatible
	set exrc

	set showbreak=>\ \ \

	" set rtp+=~/.vim/bundle/Vundle.vim/
	set rtp+=/usr/local/opt/fzf

	call plug#begin('~/.vim/plugged')

	lines = File.readlines('Gemfile.lock').grep(/rubocop/i)
	pattern = /rubocop \((.*?)\)/
	act_rubocop = lines.find{ \|e\| e =~ pattern }
	rubocop_version = act_rubocop[pattern, 1]
	installed_ones = {}

	abort("Failed to install rubocop: #{rubocop_version}") unless system("gem install rubocop -v #{rubocop_version}")

	lines.reject{\|e\| e == act_rubocop}.reject{\|e\| e =~ /rubocop \(/}.select{\|e\| e.index('(')}.each do \|other\|
	gem_name, version = other.split(/\s+/).reject(&:empty?)

	wget https://storage.googleapis.com/golang/go1.10.1.linux-armv6l.tar.gz
	sudo tar -C /usr/local -xvf go1.10.1.linux-armv6l.tar.gz
	cat >> ~/.bashrc << 'EOF'
	export GOPATH=$HOME/go
	export PATH=/usr/local/go/bin:$PATH:$GOPATH/bin
	EOF
	source ~/.bashrc

	require 'aws/s3' # gem name is 'aws-sdk'

	class BucketSyncService
	attr_reader :from_bucket, :to_bucket, :logger
	attr_accessor :debug

	DEFAULT_ACL = :public_read

	# from_credentials and to_credentials are both hashes with these keys:
	# * :aws_access_key_id

	defmodule MyApp.Auth do
	import Comeonin.Bcrypt, only: [checkpw: 2, dummy_checkpw: 0]

	alias MyApp.Accounts.User
	alias MyApp.Repo

	def login(conn, user) do
	conn
	\|> Guardian.Plug.sign_in(user)
	end