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# file: /etc/nginx/sites-available/example.com
# nginx configuration for example.com

server {
	listen 80;
	server_name example.com;
	access_log /var/www/example.com/logs/access.log;
	error_log /var/www/example.com/logs/error.log;
	
	# pass root to django

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Install Homebrew

ruby -e "$(curl -fsSL https://raw.github.com/mxcl/homebrew/go)"

Add PATH to ~/.bash_profile and ~/.zshrc

export PATH=/usr/local/bin:$PATH

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Ruby on Rails Cheatsheet

Architecture

Create a new application

Install the Rails gem if you haven't done so before

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This document contains the steps to create a mongo-enabled Rails 3.1 application. This is just for personal reference actually.

Create base application

We have to skip the Active Record stuff:

rails new app_name --skip-active-record

Add mongo and bson_ext to the Gemfile

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const API_URL = '...';
const TIMEOUT = 10; // seconds

export default (path) => {
  /* global fetch */
  const req = fetch(API_URL + path);

  const timeout = new Promise((resolve, reject) => {
    return setTimeout(() => reject(new Error('request timeout')), TIMEOUT * 1000);
  });

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Workflows (States) in Django

I'm going to cover a simple, but effective, utility for managing state and transitions (aka workflow). We often need to store the state (status) of a model and it should only be in one state at a time.

Common Software Uses

• Publishing (Draft->Approved->Published->Expired->Deleted)

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class LanguageMiddleware(object):
    """
    Detect the user's browser language settings and activate the language.
    If the default language is not supported, try secondary options.  If none of the
    user's languages are supported, then do nothing.
    """

    def is_supported_language(self, language_code):
        supported_languages = dict(settings.LANGUAGES).keys()
        return language_code in supported_languages

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Pushing to Multiple Git Repos

If a project has to have multiple git repos (e.g. Bitbucket and Github) then it's better that they remain in sync.

Usually this would involve pushing each branch to each repo in turn, but actually Git allows pushing to multiple repos in one go.

If in doubt about what git is doing when you run these commands, just

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Migrations & Seeding

What are migrations??

Migrations are a way to make database changes or updates, like creating or dropping tables, as well as updating a table with new columns with constraints via generated scripts. We can build these scripts via the command line using knex command line tool.

To learn more about migrations, check out this article on the different types of database migrations!

Creating/Dropping Tables

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// 🔥 Node 7.6 has async/await! Here is a quick run down on how async/await works

const axios = require('axios'); // promised based requests - like fetch()

function getCoffee() {
  return new Promise(resolve => {
    setTimeout(() => resolve('☕'), 2000); // it takes 2 seconds to make coffee
  });
}