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# The MIT License
# SPDX short identifier: MIT

# Further resources on the MIT License
# Copyright 2017 Denis Gladkikh (https://www.outcoldman.com/en/archive/2017/07/19/dbhist/)

# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

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# Source: https://gist.github.com/8adaf8fd6496bc99a466ba55834e1838

###############################################################
# Metacontroller - Custom Kubernetes Controllers The Easy Way #
# https://youtu.be/3xkLYOpXy2U                                #
###############################################################

# Additional Info:
# - Metacontroller: https://metacontroller.github.io/metacontroller
# - DevOps MUST Build Internal Developer Platform (IDP): https://youtu.be/j5i00z3QXyU

oleoneto

class InitialMigration < ActiveRecord::Migration[5.0]
  def change
    enable_extension "pgcrypto" unless extension_enabled?("pgcrypto")
  end
end

oleoneto

Rails naming conventions

General Ruby conventions

Class names are CamelCase.

Methods and variables are snake_case.

Methods with a ? suffix will return a boolean.

oleoneto

# Redis Cheatsheet
# All the commands you need to know


redis-server /path/redis.conf  # start redis with the related configuration file
redis-cli                      # opens a redis prompt


# Strings.

oleoneto

#!/usr/bin/liquidsoap

set("server.telnet", true)

files = playlist(
  mode = "normal",
  id = "files", 
  "PATH_TO_PLAYLIST.m3u"
)

oleoneto

#!/bin/bash

# This way you can customize which branches should be skipped when
# prepending commit message. 
if [ -z "$BRANCHES_TO_SKIP" ]; then
  BRANCHES_TO_SKIP=(master develop test)
fi

BRANCH_NAME=$(git symbolic-ref --short HEAD)
BRANCH_NAME="${BRANCH_NAME##*/}"

oleoneto

FROM ruby:2.6.3-alpine3.9
RUN apk update && apk add libpq nodejs
ENV RAILS_ROOT /app
RUN mkdir -p $RAILS_ROOT
ENV BUNDLER_VERSION 2.0.2
WORKDIR $RAILS_ROOT
RUN echo 'gem: --no-ri --no-rdoc' > ~/.gemrc
COPY Gemfile Gemfile
COPY Gemfile.lock Gemfile.lock
RUN apk add --virtual build-dependencies build-base gcc wget git postgresql-dev \

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import os

from django.http import HttpResponse
from django.shortcuts import render
from django.utils.functional import wraps
from django.utils import simplejson


def render_to(view=None, template_name=None):
    """

oleoneto

#+TITLE: Customize Save In Django Admin Inline Form


* Background

This is a common case in django ORM.
#+begin_src python
  from django.db import models

  class Author(models.Model):