erikig

SamSaffron

require "active_support"
require "active_support/core_ext/string/output_safety"
require "objspace"

def assert_same_object(x, y)
  raise unless x.object_id == y.object_id
end

def assert_not_same_object(x, y)
  raise unless x.object_id != y.object_id

giannisp

After automatically updating Postgres to 10.0 via Homebrew, the pg_ctl start command didn't work.
The error was "The data directory was initialized by PostgreSQL version 9.6, which is not compatible with this version 10.0."

Database files have to be updated before starting the server, here are the steps that had to be followed:

# need to have both 9.6.x and latest 10.0 installed, and keep 10.0 as default
brew unlink postgresql
brew install postgresql@9.6
brew unlink postgresql@9.6
brew link postgresql

anvk

--- PSQL queries which also duplicated from https://github.com/anvk/AwesomePSQLList/blob/master/README.md
--- some of them taken from https://www.slideshare.net/alexeylesovsky/deep-dive-into-postgresql-statistics-54594192

-- I'm not an expert in PSQL. Just a developer who is trying to accumulate useful stat queries which could potentially explain problems in your Postgres DB.

------------
-- Basics --
------------

-- Get indexes of tables

maxivak

Load lib files in production (Rails 5)

If you have your code defined in classes in lib/ folder you may have problems to load that code in production.

Autoloading is disabled in the production environment by default because of thread safety.

Change config/application.rb:

    config.autoload_paths << Rails.root.join("lib")
 config.eager_load_paths &lt;&lt; Rails.root.join("lib")

nruth

# load into test setup after `require 'capybara/rails'`

# some sources for below flags and profile settings
# https://stackoverflow.com/questions/43143014/chrome-is-being-controlled-by-automated-test-software/43145088
# https://sqa.stackexchange.com/questions/26051/chrome-driver-2-28-chrome-is-being-controlled-by-automated-test-software-notif
# http://stackoverflow.com/questions/12211781/how-to-maximize-window-in-chrome-using-webdriver-python
# update sources for new Options object
# https://github.com/SeleniumHQ/selenium/wiki/Ruby-Bindings
# https://github.com/teamcapybara/capybara/blob/master/lib/capybara/selenium/driver.rb
begin

andreapavoni

# MYAPP/.deliver/config

APP="<APP NAME>"
MAIN_HOST="<BUILD & PRODUCTION HOST>"
MAIN_USER="<MAIN USER FOR BUILD AND DEPLOY>"

BUILD_HOST="${MAIN_HOST}"
BUILD_USER="${MAIN_USER}"
BUILD_AT="/tmp/edeliver/${APP}/builds"

agustif

I no personal preference/order

Vim packages

vim-elixir: Vim configuration files for Elixir

alchemist.vim: This plugin uses alchemist-server to give inside information about your elixir project in vim.

Janus: This is a distribution of plug-ins and mappings for Vim, Gvim and MacVim.

neovim-elixir: Neovim host plugin for Elixir

mankind

http://stackoverflow.com/questions/22667401/postgres-json-data-type-rails-query
http://stackoverflow.com/questions/40702813/query-on-postgres-json-array-field-in-rails

#payload: [{"kind"=>"person"}]
Segment.where("payload @> ?", [{kind: "person"}].to_json)

#data: {"interest"=>["music", "movies", "programming"]}
Segment.where("data @> ?",  {"interest": ["music", "movies", "programming"]}.to_json)
Segment.where("data #>> '{interest, 1}' = 'movies' ")
Segment.where("jsonb_array_length(data->'interest') > 1")

jwarlander

# Actual Elixir module with all the functions
defmodule LibDemo do
  def hello(), do: IO.puts "Hello, World!"
  def hello(name), do: IO.puts "Hello, #{name}!"
end

defmodule LibDemo.Utils do
  def make_args(0), do: []
  def make_args(n) do
    Enum.map(1..n, fn n -> {String.to_atom("arg#{n}"), [], Elixir} end)