Luke Imhoff limhoff-r7

cloud8421 / count

Created April 22, 2015 13:40

Count query in Ecto

	# Given a Message model with a body column

	from(m in Message, select: count(m.body)) \|> Repo.one

Myuzu / secure_random.ex

Last active August 7, 2022 20:09

Elixir ruby-like SecureRandom

	# UPD from 2018:
	# This gist was written for pre-1.0 version of Elixir and won't work on post-1.0 versions.
	# You probably consider using something else!

	defmodule SecureRandom do
	@moduledoc """
	Ruby-like SecureRandom module.

	## Examples

jeffyip / rails_json_cookie_session_store.rb

Last active September 23, 2020 07:03

Monkey Patch Ruby on Rails' cookie based session store to use JSON as its serializer instead of Marshal

	# Fork of MessageVerifier from Rails 3.2.3
	# https://raw.github.com/rails/rails/f3e1b21ca91afbd97f33d1e51808dd320d82b4de/activesupport/lib/active_support/message_verifier.rb
	# Author: Jeff Yip (jeffyip)
	# This should work with Rails 3.0 - Rails 3.2

	require 'active_support/base64'
	require 'active_support/deprecation'
	require 'active_support/core_ext/object/blank'

	module ActiveSupport

mrpunkin / arel_based.rb

Created March 7, 2012 21:47

Using arel to query SQL functions

	dc = Arel::Nodes::NamedFunction.new "DATE", [ p[:created_at] ] ## second argument must be an array

	## Sub this...
	arel.project("DATE(`photos`.`created_at`)")

	## For this...
	arel.project(dc.to_sql)

	arel.to_sql >> "SELECT DATE(`photos`.`created_at`) FROM `photos` INNER JOIN `votes` ON `photos`.`id` = `votes`.`photo_id`"