rantoniuk

namespace :db do  desc "Backup project database. Options: DIR=backups RAILS_ENV=production MAX=7" 
  task :backup => [:environment] do
    datestamp = Time.now.strftime("%Y-%m-%d_%H-%M-%S")    
    base_path = Rails.root
    base_path = File.join(base_path, ENV["DIR"] || "backups")
    backup_base = File.join(base_path, 'db_backups')
    backup_folder = File.join(backup_base, datestamp)
    backup_file = File.join(backup_folder, "#{RAILS_ENV}_dump.sql")    
    FileUtils.mkdir_p(backup_folder)    
    db_config = ActiveRecord::Base.configurations[RAILS_ENV]    

andreyvit

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

ivanvanderbyl

sudo add-apt-repository ppa:pitti/postgresql
sudo apt-get update
sudo apt-get install postgresql-9.2 postgresql-server-dev-9.2 postgresql-contrib-9.2

sudo su -l postgres
psql -d template1 -p 5433
CREATE EXTENSION IF NOT EXISTS hstore;
CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
service postgresql stop
/usr/lib/postgresql/9.2/bin/pg_upgrade -b /usr/lib/postgresql/9.1/bin -B /usr/lib/postgresql/9.2/bin -d /var/lib/postgresql/9.1/main/ -D /var/lib/postgresql/9.2/main/ -O "-c config_file=/etc/postgresql/9.2/main/postgresql.conf" -o "-c config_file=/etc/postgresql/9.1/main/postgresql.conf"

choffmeister

#!/bin/bash

sudo apt-get install build-essential automake checkinstall intltool git
sudo apt-get install mono-complete mono-addins-utils gtk-sharp2 gnome-sharp2

git clone git://github.com/mono/monodevelop
cd monodevelop
git checkout monodevelop-4.0
git submodule update --init --recursive
./configure

promisedlandt

class PolicyTest < ActiveSupport::TestCase
  def assert_permissions(current_user, record, available_actions, permissions_hash = {})
    permissions_hash.each do |action, should_be_permitted|
      if should_be_permitted
        assert_permit current_user, record, action
      else
        refute_permit current_user, record, action
      end
    end

chsh

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

maxivak

Integrate Gem/Engine and main Rails app

Overview

• Paths
• Routes
• Add functionality to controller
• Improving (Extending or overriding) Engine functionality
• Helpers
• Assets

huacnlee

version: 2
jobs:
  build:
    docker:
      - image: circleci/ruby:2.5.3-node-browsers
        environment:
          RAILS_ENV: test
          DATABASE_URL: postgres://[email protected]:5432/rails-test
      - image: circleci/postgres:9.6
        environment: