achmiral

FROM node:7.10-alpine

RUN mkdir -p /opt/app
WORKDIR /opt/app

COPY ./package.json /opt/app

RUN apk add --update --no-cache tini &&\
  apk add --virtual .build-dependencies make gcc g++ python &&\
  npm install --production &&\

achmiral

Name	Singular/Plural	Use
Controller	Plural	rails g controller Users index show
Helper	Plural	rails g helper Users
Mailer	Singular	rails g mailer UserMailer
Migration	Plural	rails g migration AddEmailToUsers email:string
Model	Singular	rails g model User name:string
Observer	Singular	rails g observer User
Resource	Plural*	resources :users, :only => [:index, :show]
Scaffold	Singular	rails g scaffold User name:string

achmiral

# Question:

  # Suppose you have an array of 99 numbers. 
  # The array contains the digits 1 to 100 with one digit missing. 
  # Write four different algorithms to compute the missing number. 
  # Two of these should optimize for low storage and two of these should optimize for fast processing.
  # (Keep in mind, there are no duplicates and the array is not already sorted.)

#######################################################

achmiral

" Setup Vim Core
set number "Nomor Baris Statik
set relativenumber "Nomor Baris Dinamik
set nocompatible
set softtabstop=2
set backspace=indent,eol,start
filetype plugin indent on

set laststatus=2
set linespace=3

achmiral

class Api::RegionsController < ApplicationController
  def provinces
    prompt = [
        {
            id: "",
            name: core_model_lang("province")
        }
    ]
    @provinces = prompt + Province.all
    render json: @provinces.to_json(only: [:id, :name])

achmiral

# See how variables work, and a list of predefined ones:
#  - https://docs.gitlab.com/ce/ci/variables/
variables:
  RAILS_IMAGE: registry.gitlab.com/bryanbraun/gridmaster.io/railsapp:$CI_COMMIT_SHA
  NGINX_IMAGE: registry.gitlab.com/bryanbraun/gridmaster.io/nginx:$CI_COMMIT_SHA
  DEPLOY_TAG: $CI_COMMIT_SHA

cache:
  paths:
  - vendor/ruby

achmiral

Make /robots.txt aware of the Rails environment

You probably don't want Google crawling your development staging app. Here's how to fix that.

$ mv public/robots.txt config/robots.production.txt
$ cp config/robots.production.txt config/robots.development.txt

Now edit config/routes.rb to add a route for /robots.txt, and add the controller code.

achmiral

Realtime Notifications with ActionCable

In this episode we're going to be adding realtime notifications into your app using ActionCable. We've talked about notifications a few times in the past and we used AJAX polling for that. 95% of the time, polling is the solution that would be recommended for it.

But if you're looking for a good introduction into ActionCable then this is a decent one because we're only really using it for one way from the server side to the client side.

Getting started

So to get started we're starting with an app that has Bootstrap installed and then we created a Main controller with an index view which is where we will list our Notifications as for this example.

Before we generate our channels let's install a few things

achmiral

Setup

Replace IRB with Pry (in your Gemfile) and Byebug with pry-byebug.

gem 'pry-rails', group: [:development, :test]
gem 'pry-byebug', group: [:development, :test]

Using PRY

achmiral

Subdomaining Localhost with Rails 5

I've been following this blog post on how to set up an api-only Rails 5 application. One of the sections talks about creating a subdomain for your api

Rails.application.routes.draw do
  constraints subdomain: "api" do
    scope module: "api" do