narrowtux

defmodule RepoStream do
  defmodule Producer do
    use GenStage

    defstruct [:demand, :pid]

    def start_link() do
      GenStage.start_link(__MODULE__, self())
    end 

checco

--
-- Read only 
--

-- Create a group
CREATE ROLE postgres_ro_group;

-- Grant access to existing tables
GRANT USAGE ON SCHEMA public TO postgres_ro_group;
GRANT SELECT ON ALL TABLES IN SCHEMA public TO postgres_ro_group;

apolloclark

Postgres Cheatsheet

This is a collection of the most common commands I run while administering Postgres databases. The variables shown between the open and closed tags, "<" and ">", should be replaced with a name you choose. Postgres has multiple shortcut functions, starting with a forward slash, "". Any SQL command that is not a shortcut, must end with a semicolon, ";". You can use the keyboard UP and DOWN keys to scroll the history of previous commands you've run.

Setup

installation, Ubuntu

http://www.postgresql.org/download/linux/ubuntu/ https://help.ubuntu.com/community/PostgreSQL

djo

#!/usr/bin/env bash
set -x

term_handler() {
  echo "Stopping the server process with PID $PID"
  erl -noshell -name "term@127.0.0.1" -eval "rpc:call('app@127.0.0.1', init, stop, [])" -s init stop
  echo "Stopped"
}

trap 'term_handler' TERM INT

basgys

# == Paperclip without ActiveRecord
#
# Simple and lightweight object that can use Paperclip
#
# 
# Customized part can be extracted in another class which
# would inherit from SimplePaperclip.
#
#   class MyClass < SimplePaperclip
#     attr_accessor :image_file_name # :<atached_file_name>_file_name