clemens

if Rails.env.test?
  # inspired by Braintree's original WebhookTestingGateway, but with way more flexibility and complete data
  class BraintreeWebhookTestingGateway
    class << self
      def register_notification(identifier, kind = nil, &builder)
        @notifications ||= {}
        kind ||= identifier
        @notifications[identifier] = [kind, builder]
      end

inindev

/* 
 * derivative work of Matheus de Oliveira's json_manipulator.sql
 *   https://gist.github.com/matheusoliveira/9488951 
 *
 *  adapted to support postgresql 9.4 jsonb type
 *  no warranties or guarantees of any kind are implied or offered
 *
 *  license is as Matheus conferred it on 4/9/2015:
 *  matheusoliveira commented on Apr 9
 *    @hannes-landeholm, I'd like to take credit if you share them 

mencargo

Useful PostgreSQL Queries & Commands

All sizes in MB, change /1024/1024 to /1024/1024/1024 for GB.

Databases sizes

Without system databases

select
datname as database,
(pg_database_size(datname)/1024/1024) as size