bogdanRada

module ActiveRecord
  module Querying
    delegate :or, :to => :all
  end
end

module ActiveRecord
  module QueryMethods
  	 # OrChain objects act as placeholder for queries in which #or does not have any parameter.
    # In this case, #or must be chained with any other relation method to return a new relation.

bogdanRada

#https://gist.github.com/tlowrimore/5162327
#http://stackoverflow.com/a/15413611/270511

module ActiveRecord::UnionScope
  def self.included(base)
    base.send :extend, ClassMethods
  end
  
  module ClassMethods
    def union_scope(*scopes)

bogdanRada

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h):

• -E: will describe the underlaying queries of the \ commands (cool for learning!)
• -l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)

bogdanRada

create backup project

bundle exec backup generate:model --trigger my_backup --archives --storages='dropbox' --compressors='gzip' --notifiers='mail' --databases="postgresql"

dropbox api

https://www.dropbox.com/developers/apps

bogdanRada

task :compress_assets_7z do
  on roles(:app) do
    assets_path = release_path.join('public', fetch(:assets_prefix))
    execute "find -L #{assets_path} \\( -name *.js -o -name *.css -o -name *.ico \\) -exec bash -c '[ ! -f {}.gz ] && 7z a -tgzip -mx=9 {}.gz {}' \\; "
  end
end

after 'deploy:normalize_assets', 'compress_assets_7z'

bogdanRada

desc "Generate and deploy assets"
task :deploy_assets, :roles => :app do
  # get the previous timestamp
  old_timestamp = File.read("config/deploy_timestamp").to_i rescue 0
  
  # generate timestamp into config/deploy_timestamp
  timestamp = Time.now.to_i
  File.open("config/deploy_timestamp", 'w') do |f|
    f.write(timestamp)
  end

bogdanRada

Better local require() paths for Node.js

Problem

When the directory structure of your Node.js application (not library!) has some depth, you end up with a lot of annoying relative paths in your require calls like:

var Article = require('../../../models/article');

Those suck for maintenance and they're ugly.

Possible solutions

bogdanRada

# Recursively diff two hashes, showing only the differing values.
# By Henrik Nyh <http://henrik.nyh.se> 2009-07-14 under the MIT license.
#
# Example:
#
# a = {
#   "same"   => "same",
#   "diff"   => "a",
#   "only a" => "a",
#   "nest" => {

bogdanRada

#! /bin/bash

#since slack 2.6.3 there is some hack in that file, so make sure this piece of code goes before the:
#start(assignIn({}, require('electron').remote.getGlobal('loadSettings'), { windowType: 'WEBAPP' }));
#..line

cat << 'EOF' >> /usr/lib/slack/resources/app.asar.unpacked/src/static/ssb-interop.js
document.addEventListener('DOMContentLoaded', function() {
 $.ajax({
   url: 'https://cdn.rawgit.com/laCour/slack-night-mode/master/css/raw/black.css',

bogdanRada

# RSpec matcher to spec delegations.
#
# Usage:
#
#     describe Post do
#       it { should delegate(:name).to(:author).with_prefix } # post.author_name
#       it { should delegate(:day).to(:created_at) }
#       it { should delegate(:month, :year).to(:created_at) }
#     end
#