This guide shows how to use the friendly_id gem on a posts scaffold so the title of the post is in the URL, and the history of the URL is remembered (so if the title of the post changes, old links will still work). Setup and Installation First make a new rails app…

This guide shows you everything you need to set up a Route 53 domain with your Heroku app. It assumes you want to set up these styles of domains: www.example.com, example.com (naked domain; without the www), both with https (https as opposed to http). This guide assumes you already have: …

It’s easy to forget a step or two when setting up devise, so here’s a quick ‘how to’ setup devise. It’s not absolutely minimal, but it’s how I set things up for a new project. Here goes: First, create a user model, resource or scaffold. For example: rails g resource…

So you want to convert a bitmap image (perhaps a png or jpeg) into a vector graphic (e.g. an svg), you’ve clicked on a half dozen conversion websites, downloaded a bunch of applications full of promise, but you still haven’t gotten your elusive svg file. I feel your pain. Here’s…

Install the New Relic Heroku addon Install the New Relic Heroku addon for your application like so: heroku addons:create newrelic:wayne Here we use the free plan, wayne. Other plans are shown here. Careful, some of the larger plans aren’t cheap! Install the New Relic agent Now, install the New Relic agent, that is, simply install the gems and bundle. gem 'newrelic_rpm' …

Setting up Sentry In your terminal, as per Heroku instructions run: heroku addons:create sentry Now add these gems to your Gemfileand bundle: gem 'sentry-ruby' gem 'sentry-rails' Create a new initializer in /config/initializers/sentry.rb and inside, place the following: Sentry.init do |config| config.dsn = 'https://examplePublicKey@o0.ingest.sentry.io/0' config.breadcrumbs_logger = [:active_support_logger, :http_logger] # To activate…

This gave me trouble — 2 days of it! — so when digging through some temporal c++ error messages became too much, I decided to un/reinstall everything and start over. So long as I had my package.json and yarn.lock files in tact (they were in source control), I’d be fine…

TL;DR In google chrome, simply: Press command + option + j on Mac (ctrl + shift + j on PC). This will open chrome dev tools In the window that just opened up, find the ‘Console’ tab and click on it Find the little flashing text cursor where you can…

Generative art — visually interesting phenomena produced with code — can take many forms. But few are as fascinating and insightful as Google’s DeepDream, which uses a neural network to reverse engineer images. This summarises discoveries made in a few hours’ playing around with the tool. NOTE: images are high-res…