week_4_day_1_morning.rb

##RAILS
#The router works out which controller to talk to; 
#The controller talks to the models, the models talk to the views; 

#One file shows you all of the different routes in your programme; 

##To get into you bash profile
subl ~/.bash_profile #Goes into your bash_terminal; 
echo $PATH #Shows your path; 

4.0.4
#Semantic versioning; 
#The last digit

rails v #rails -v runs the rails programme;
rails new first_app -d postgresql #We are saying that we want to use the postgres database by default; 
#Created a gem file and then run bundle install to install all of the gems; 

rails generate scaffold movie title:string in_theatres:boolean release:date rating:string description:text 
#Create a model, views and a controller; 

database.yml
#Go to the development environment and change the usename to your usename; 
#Add host: localhost and comment out the production and test configurations;
rake db:create
#To create the database;

rails server 
#To start up the server, listens on port 3000; 
#In browser go to localhost:3000

rake routes
#Shows all the routes in the application;

##Database
schema.rb #Showing the current state of our database; 
development.log #Keeps track of everything that has happenned; 

rails console #You can access the database from here; 

#In routes.rb #pages is the controller and home is the action (a method inside of a controller is called an action);
Basics::Application.routes.draw do 
  root :to => 'pages#home' #Where the root of the application goes, you can only define this once in the routes file; 
  
  get '/home' => 'pages#home'
  get '/about' => 'pages#about'
end

pages_controller.rb #create this file in the controllers folder, follow this convention or it will not be able to find it; 
class PagesController < ApplicationController
  def home
    render 'comingsoon' #If you want to override the default which would be home.html.erb you can render the view you want to display; 
  end
  
  def about
    redirect_to('/butterflies') #
  end
end
#In the view folder create a pages folder and in this create a home.html.erb (serving html here); 

gem 'pry' in the Gemfile and then run bundle so it will re-bundle all our gems in the application; 
gem 'pry-rails' #depends on pry, so authomatically installs pry for you; 
gem 'pry-debugger'
gem 'pry-stack_explorer'

##IMAGES
#Images live in the assets/images folder #Present the image as being in 'assets/funny', but is actually in 'assets/images/funny' - it flattens out the folder structure; 

##CSS
#Styles that you want all over the application you can put in application.css

gem 'better-errors'
gem 'binding_of_caller'

##ADMIN/SHORTCUTS
ruby -v #Shows the version of ruby that you are using
rails console #You can access the database from here when inside the application folder; 
rake routes #To look at the routes; 
cmd + p #will go and find the file in sublime; 
#Get better errors to work with sublime text; 
http://dwradcliffe.com/2013/01/18/better-errors-with-sublime-text.html