rails on Senior Software Engineer Learns Functional Programming

AWDWR 5.1 - 03-05 - Theory

Mon, 05 Jun 2017 00:00:00 +0000

Chapters 3 through 5 focus on a little bit of theory before we get to building the tutorial application.

Chapter 3 - The Architecture of Rails Applications

Chapter 3 jumps into explaining MVC. It’s a pretty simple concept. MVC stands for Model, View, and Controller. The model is responsible for the state of the application, often the data you store in a database. It’s also more than data; it enforces the business rules that apply to your data. The model is both a gatekeeper and a data store. The view is responsible for generating some type of user interface. The view’s job is done once the data is displayed. Multiple possible views of the same data are a common case. The controller orechestrates the application. Controllers receive events from the outside world, interact with the model, and display the appropriate view. The book provides a simple diagram:

AWDWR 5.1 - 02 - Instant Gratification

Thu, 18 May 2017 00:00:00 +0000

First I’ld like to say sorry the images are a little big. Not used to screencaps on this retina Macbook.

So, I fixed my mistake from last time. I had originally installed ruby via homebrew, but now that I’ve read up on rbenv, it seems a lot nicer than the old rvm, and I might want multiple versions of Ruby on my home PC. So I uninstalled Ruby 2.4 and went with brew install rbenv and then used it to install the latest Ruby. I see why the book authors prefer it over RVM now. It’s a lot less invasive than the old RVM.

AWDWR 5.1 - 01 - Introduction

Tue, 16 May 2017 00:00:00 +0000

So, what do I have to blog about? I’m always trying out new stuff and reading books, so I figure I’ll talk about that. I happen to have just gotten a beta copy of Agile Web Development with Rails 5.1 and since my Ruby and Rails experience from my résumé is a little rusty, I figure I’ll read that and blog about the experience. Starting this site using Jekyll has made me think about Ruby lately anyway. It’s been many years since I’ve read “Agile Web Development with Rails”, and I think it was the version that covered Rails 1.2, so this should be a pretty new experience for me; both a great refresher and an introduction to what is new in the Rails world these days.