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Setting up Heroku and Cloudflare (the right way)

The following outlines how to setup Heroku + Cloudflare with a full SSL certificate. What this means is that communication between the browser and the Cloudflare CDN is encrypted as well as communication between Cloudflare and Heroku’s origin server. Follow these steps exactly and the setup is a breeze.

Step 1: Set up domain names in Heroku

First you want to add the root domain and the www domain to heroku. You do this by clicking into your production application, then going to settings and then scrolling down to Domains and certificates.

Here you will add <your_domain>.com and www.<your_domain>.com. This will give you two CNAME records. They will look something like <your_domain>.com.herokudns.com and www.<your_domain>.com.herokudns.com.

Step 2: Add CNAME records to Cloudfare.

ujackson

Single Table inheritance

reference: blog.thirst.co

In a nutshell, STI allows you to create subclasses of a particular database table. Using a single table, you can cast rows to specific objects that extend the base model.

how to create STI relationships in Rails

Lets say we have a model Computer

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    #Since Rails doesn't load classes unless it needs them, you must read the models from the folder. Here is the code
    Dir[Rails.root.to_s + '/app/models/**/*.rb'].each do |file| 
      begin
        require file
      rescue
      end
    end

    models = ActiveRecord::Base.subclasses.collect { |type| type.name }.sort

ujackson

# It requires ACK - http://betterthangrep.com/
task :find_unused_images do
  images = Dir.glob('app/assets/images/**/*')

  images_to_delete = []
  images.each do |image|
    unless File.directory?(image)
      # print "\nChecking #{image}..."
      print "."
      result = `ack -1 -G '(app|public)' --ruby --html --css --js #{File.basename(image)}`

ujackson

ActiveAdmin custom action

ujackson

#!/bin/bash
sudo add-apt-repository ppa:ondrej/php
sudo apt-get update
sudo apt-get install -y apache2
sudo ufw allow in "Apache Full"
sudo apt-get install -y mysql-server

# After running this command, select (Y), option 2, then (Y) for the rest of the prompts.
sudo mysql_secure_installation

ujackson

<template>
    <modal @modal-close="handleClose">
        <form
            @submit.prevent="handleConfirm"
            slot-scope="props"
            class="bg-white rounded-lg shadow-lg overflow-hidden"
            style="width: 460px"
        >
            <slot :uppercaseMode="uppercaseMode" :mode="mode">
                <div class="p-8">

ujackson

<?php

namespace App\Http\Controllers;

use App\User;
use Illuminate\Http\Request;

class PaginationController extends Controller
{

ujackson

<?php
/**
 * List of timezones
 */
return array(
    'Pacific/Midway' => '(UTC-11:00) Midway',
    'Pacific/Niue' => '(UTC-11:00) Niue',
    'Pacific/Pago_Pago' => '(UTC-11:00) Pago Pago',
    'America/Adak' => '(UTC-10:00) Adak',
    'Pacific/Honolulu' => '(UTC-10:00) Honolulu',

ujackson

<?php

$timezones = array(
    'America/Adak' => '(GMT-10:00) America/Adak (Hawaii-Aleutian Standard Time)',
	'America/Atka' => '(GMT-10:00) America/Atka (Hawaii-Aleutian Standard Time)',
	'America/Anchorage' => '(GMT-9:00) America/Anchorage (Alaska Standard Time)',
	'America/Juneau' => '(GMT-9:00) America/Juneau (Alaska Standard Time)',
	'America/Nome' => '(GMT-9:00) America/Nome (Alaska Standard Time)',
	'America/Yakutat' => '(GMT-9:00) America/Yakutat (Alaska Standard Time)',
	'America/Dawson' => '(GMT-8:00) America/Dawson (Pacific Standard Time)',