julia- · August 29, 2015 14:14 · Feb 3, 2015 · Feb 3, 2015 · Feb 3, 2015 · Feb 3, 2015
diff --git a/wdi_week_4_notes.md b/wdi_week_4_notes.md
@@ -487,6 +487,18 @@ this is so we can view the planets better in the controller
 
 ###Lab: Single Model CRUD - Oceans or Mountains
 
+
+
+###Reading: Active Record Helpers
+
+http://api.rubyonrails.org/classes/ActionView/Helpers/AssetTagHelper.html#method-i-image_tag
+
+###Reading: Active Record Migrations
+
+http://guides.rubyonrails.org/active_record_migrations.html
+
+You can think of each migration as being a new 'version' of the database. A schema starts off with nothing in it, and each migration modifies it to add or remove tables, columns, or entries. Active Record knows how to update your schema along this timeline, bringing it from whatever point it is in the history to the latest version.
+
 ##Wednesday
 
 ##Thursday 

diff --git a/wdi_week_4_notes.md b/wdi_week_4_notes.md
@@ -449,9 +449,9 @@ rails generate migration create_whatever
 
 subl . #fill in the migration
 
-db :create
+rake db:create
 
-db :migrate
+rake db:migrate
 
 touch app/models/whatever.rb
 

diff --git a/wdi_week_4_notes.md b/wdi_week_4_notes.md
@@ -439,6 +439,51 @@ rails console
 
 Planet.all
 
+**Recap of the above steps:**
+
+rails new something -T
+
+cd something
+
+rails generate migration create_whatever
+
+subl . #fill in the migration
+
+db :create
+
+db :migrate
+
+touch app/models/whatever.rb
+
+annotate
+
+rake db:seed
+
+---
+
+http://localhost:3000/info/routes
+
+will show you the urls and the methods to get to those urls
+
+---
+
+we changed the new planet form so that all the name values were formatted like this - planet[moons]
+
+this is so we can view the planets better in the controller
+
+```
+>> params
+=> {"name"=>"", "planet"=>{"image"=>"", "orbit"=>"", "mass"=>"", "diameter"=>"", "distance"=>"", "moons"=>""}, "controller"=>"planets", "action"=>"create"}
+>> params[planet]
+!! #<NameError: undefined local variable or method `planet' for #<PlanetsController:0x007fc52bedecc8>>
+>> params["planet"]
+=> {"image"=>"", "orbit"=>"", "mass"=>"", "diameter"=>"", "distance"=>"", "moons"=>""}
+>> params["planet"]["name"]
+=> nil
+>> params["planet"].keys
+=> ["image", "orbit", "mass", "diameter", "distance", "moons"]
+>>
+```
 
 ###Lab: Single Model CRUD - Oceans or Mountains
 

diff --git a/wdi_week_4_notes.md b/wdi_week_4_notes.md
@@ -229,6 +229,217 @@ end
 
 ###Single Model CRUD - Planets
 
+Create path '/'
+
+Define our database
+
+Create planets table
+
+- id integer autoincrement
+
+- name text
+
+- mass float
+
+- moons integer
+
+- distance integer
+
+####The long SQL process
+
+**Step 1: Setting up the database**
+
+```
+rails new solar_systems_app
+```
+
+Create planets.sql in db file
+
+```
+CREATE TABLE planets (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    name TEXT,
+    image TEXT,
+    orbit FLOAT,
+    diameter FLOAT,
+    distance FLOAT,
+    mass FLOAT,
+    moons INTEGER
+);
+```
+
+Table name must be plural, the model itself must be singular
+
+create the database by running rake db:create 
+
+it will create a file called development sqlite 3
+
+we can then cd into the db folder
+
+run sqlite3 development.sqlite3 < planets.sql in the terminal
+
+this pushes the planets table into the database 
+
+to test that it worked run sqlite3 development.sqlite3 .schema and it should return the table structure 
+
+**Step 2: Creating a model**
+
+Now we need to create a model to make this work 
+
+The model goes in the app folder, in a folder called models
+
+create new file planet.rb
+
+into that file put 
+
+```
+class Planet < ActiveRecord::Base
+end
+```
+
+gem install annotate
+
+run annotate
+
+this inserts a big comment into my planet.rb file which shows the table name and characteristics 
+
+An alternative to pry:
+
+in order to deal with pry we can type rails console in the terminal
+
+then we can start running commands like Planet.all
+
+In order to be in pry rather than console, 
+
+put these into my gemfile
+
+```
+group :development do
+    gem 'pry-rails'
+    gem 'pry-stack_explorer'
+    gem 'annotate'
+    gem 'quiet_assets'
+    gem 'better_errors'
+    gem 'binding_of_caller'
+    gem 'meta_request'
+end
+```
+
+then run bundle
+
+then run rails console again 
+
+you could do earth =  Planet.new
+
+and then set all the properties
+
+or you can do this
+
+venus = Planet.create :name => 'Venus', :mass => 3, :diameter => 11, :distance => 1, :moons => 2
+
+Planet.destroy_all  will destory all planets
+
+Planet.count should now show zero 
+
+**Step 3: Seed data**
+
+The seeds.rb file is for seed data
+
+```
+Planet.create(:name => 'Earth', :orbit => 1, :moons => 1)
+Planet.create(:name => 'Mars', :orbit => 1.5, :moons => 2)
+Planet.create(:name => 'Venus', :orbit => 0.7, :moons => 0)
+Planet.create(:name => 'Jupiter', :orbit => 3.7, :moons => 7)
+Planet.create(:name => 'Pluto', :orbit => 5, :moons => 3)
+```
+
+Enter some seed data and then run rake db:seed in terminal
+
+This connects the seed data with the database
+
+to test that it worked, in the console, run Planet.count / Planet.all and the seed data should be there
+
+if you make a mistake while playing around with your data, you can restore the original seeded data by reseeding them
+
+first you need to add Planet.destroy_all to the top of the seeds.rb file 
+
+then when you re-run rake db:seed it will first destroy all existing planets, then reseed the original ones
+
+rake db:drop (deletes the database)
+
+delete sql file
+
+so all that's in db folder is the seeds file
+
+----
+
+####Rails generating the migration for us, without us having to write SQL
+
+in solar_system_app run
+
+rails generate migration create_planets
+
+the rb file should appear in the migrate folder
+
+it tells rails to create a table
+
+so this is the equivalent of our sql stuff, but its a lot more rubyish
+
+```
+class CreatePlanets < ActiveRecord::Migration
+  def change
+    create_table :planets do |t|
+    end
+  end
+end
+```
+
+so we want to insert into the do block our table details
+
+```
+class CreatePlanets < ActiveRecord::Migration
+  def change
+    create_table :planets do |t|
+        t.string :name
+        t.text :image
+        t.float :orbit
+        t.float :mass
+        t.float :diameter
+        t.float :distance
+        t.integer :moons
+        t.timestamps
+    end
+  end
+end
+```
+
+this table works across all databases now
+
+rake db:create (creates the db)
+
+rake db:migrate (finds any unapplied migrations and performs them)
+
+at this point you can run annotate, then go back to the planet.rb file to check thar the table is there
+
+at this stage we have set up the M part of our MVC model, but we haven't set up any routes
+
+**Setting up the routes:**
+
+in the routes.rb file
+
+get '/planets' => 'planets#index'
+
+in terminal run rails generate controller planets index
+
+this means rails will create the file for me and create the views folder and put an index.html.erb file in there ready for me to customize
+
+rake db:seed
+
+rails console
+
+Planet.all
+
+
 ###Lab: Single Model CRUD - Oceans or Mountains
 
 ##Wednesday

diff --git a/wdi_week_4_notes.md b/wdi_week_4_notes.md
@@ -193,6 +193,44 @@ https://gist.github.com/wofockham/ae2479856769f8dbc804
 
 ##Tuesday
 
+###Warmup
+
+**Decoding messages:**
+
+https://gist.github.com/epoch/21c0133143f03226cee0
+
+My crappy solution, but it works!
+
+```
+message  = "FRZDUGV GLH PDQB WLPHV EHIRUH WKHLU GHDWKV, WKH YDOLDQW QHYHU WDVWH RI GHDWK EXW RQFH."
+
+message_arr = message.split(//)
+
+alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+
+alphabet_arr = alphabet.split(//)
+
+alphabet_shift = "DEFGHIJKLMNOPQRSTUVWXYZABC"
+
+alphabet_shift_arr = alphabet_shift.split(//)
+
+message_arr.each do |letter|
+
+    if letter != " "
+        index = alphabet_shift_arr.index(letter)
+        correct_letter = alphabet_arr[index]
+        print correct_letter
+    else
+        print " "
+    end
+
+end
+```
+
+###Single Model CRUD - Planets
+
+###Lab: Single Model CRUD - Oceans or Mountains
+
 ##Wednesday
 
 ##Thursday 

diff --git a/wdi_week_4_notes.md b/wdi_week_4_notes.md
@@ -187,9 +187,9 @@ class AutoController < ApplicationController
 end
 ```
 
-###Tour
+###Lab: Movie Stock 
 
-###Routing and controllers
+https://gist.github.com/wofockham/ae2479856769f8dbc804
 
 ##Tuesday
 

diff --git a/wdi_week_4_notes.md b/wdi_week_4_notes.md
@@ -171,7 +171,7 @@ root :to => 'pages#home'
 
 **Debugging:**
 
-Rather than using binging.pry, use a raise like this:
+Rather than using binding.pry, use a raise like this:
 
 ```
 class AutoController < ApplicationController

diff --git a/wdi_week_4_notes.md b/wdi_week_4_notes.md
@@ -165,7 +165,27 @@ Here's how Rails will work when we run the server:
 
 - We identify the root/home page by including in the routes.rb file
 
-```root :to => 'pages#home'```
+```
+root :to => 'pages#home'
+```
+
+**Debugging:**
+
+Rather than using binging.pry, use a raise like this:
+
+```
+class AutoController < ApplicationController
+
+    def color
+        raise "Something bad happen"
+        raise params.inspect
+    end
+
+    def engine
+    end
+
+end
+```
 
 ###Tour
 

diff --git a/wdi_week_4_notes.md b/wdi_week_4_notes.md
@@ -163,6 +163,10 @@ Here's how Rails will work when we run the server:
 
 - Or you can go to localhost:3000/rails/info/routes
 
+- We identify the root/home page by including in the routes.rb file
+
+```root :to => 'pages#home'```
+
 ###Tour
 
 ###Routing and controllers

diff --git a/wdi_week_4_notes.md b/wdi_week_4_notes.md
@@ -75,8 +75,12 @@ https://github.com/amysimmons/wdi8_homework/tree/master/amy/blog
 
 ###Patterns
 
+Design Patterns: Elements of Reusable Object-Oriented Software (book)
+
 ###Rails appetiser
 
+**Movies example:**
+
 rails new movie_night
 
 rails server
@@ -91,6 +95,74 @@ rails server
 
 localhost:3000/movies 
 
+**Intro example:**
+
+Rails has three different environments:
+
+- Development 
+
+- Test
+
+- Production 
+
+We added the following gems to Gemfile...
+
+```
+group :development do
+    gem 'pry-rails'
+    gem 'pry-stack_explorer'
+    gem 'annotate'
+    gem 'quiet_assets'
+    gem 'better_errors'
+    gem 'binding_of_caller'
+    gem 'meta_request'
+end
+```
+
+... then ran bundle in the terminal.
+
+in routes.rb
+
+```
+Rails.application.routes.draw do
+
+  get '/home' => 'pages#home'
+  # if someone makes a get request to /home
+  # go and look in our pages controller and go and find the method called home
+
+end
+
+```
+
+in pages_controller.rb
+
+```
+class PagesController < ApplicationController
+
+    def home
+
+    end
+    #we need a home method here because we have a page called /home
+
+end
+```
+
+In views, we created a new folder called pages, which sits alongside layout. We then created a file in the pages folder called home.html.erb
+
+Here's how Rails will work when we run the server:
+
+- When I bring up the rails server it will look into my routes.rb file to see what urls are available
+
+- If someone visits /home, rails will go to the pages controller to find the method
+
+- If Rails sees that there is no code in the method, it will then go and look for a view that matches the name of this method, so it will find the view called home.html.erb
+
+**Routes:**
+
+- Runnign rake routes in the terminal will tell you how many urls are involved in the project
+
+- Or you can go to localhost:3000/rails/info/routes
+
 ###Tour
 
 ###Routing and controllers

diff --git a/wdi_week_4_notes.md b/wdi_week_4_notes.md
@@ -77,6 +77,20 @@ https://github.com/amysimmons/wdi8_homework/tree/master/amy/blog
 
 ###Rails appetiser
 
+rails new movie_night
+
+rails server
+
+localhost:3000
+
+rails generate scaffold movie title:string in_theatres:boolean released:date rating:string description:text
+
+rake db:migrate (updating the database to include the movies table)
+
+rails server 
+
+localhost:3000/movies 
+
 ###Tour
 
 ###Routing and controllers

diff --git a/wdi_week_4_notes.md b/wdi_week_4_notes.md
@@ -67,6 +67,12 @@ bob.chat("You're a fool")
 
 ###CRUD demos
 
+Homework over the weekend was to create a CRUD system.
+
+I made a blog, with no styling:
+
+https://github.com/amysimmons/wdi8_homework/tree/master/amy/blog
+
 ###Patterns
 
 ###Rails appetiser

diff --git a/wdi_week_4_notes.md b/wdi_week_4_notes.md
@@ -8,7 +8,7 @@
 
 https://gist.github.com/epoch/ea1798f7269f454f2445
 
-My solution:
+My solution (exclusing the extension):
 
 ```
 class Bob

diff --git a/wdi_week_4_notes.md b/wdi_week_4_notes.md
@@ -0,0 +1,87 @@
+#WDI Week 4 Notes
+
+##Monday
+
+###Warmup
+
+**Bob:**
+
+https://gist.github.com/epoch/ea1798f7269f454f2445
+
+My solution:
+
+```
+class Bob
+
+    def sure
+        puts "sure"
+    end
+    # if you ask him a question
+
+    def whatever
+        puts "whatever"
+    end
+    # if you tell him something
+
+    def chill
+        puts "woah, chill out!"
+    end
+    # if you yell at him
+
+    def fine
+        puts "fine, be that way!"
+    end
+    # if you address him without actually saying anything
+
+    def loser_speak
+        puts "loser speak"
+    end
+    #Start any sentence with "Bro, " and he'll translate the rest of it into l33t sP34k for you.
+
+    def chat(say)
+        if say.start_with?"Bro, "
+            loser_speak
+        elsif say.include? '?'
+            sure
+        elsif say.empty? || say == " "
+            fine
+        elsif say == say.upcase
+            chill
+        else
+            whatever
+        end  
+    end
+
+end
+
+bob = Bob.new
+
+bob.chat("Bro, ")
+bob.chat("sup?") 
+bob.chat(" ") 
+bob.chat("") 
+bob.chat("SUP") 
+bob.chat("You're a fool")
+
+```
+
+###CRUD demos
+
+###Patterns
+
+###Rails appetiser
+
+###Tour
+
+###Routing and controllers
+
+##Tuesday
+
+##Wednesday
+
+##Thursday 
+
+##Friday 
+
+
+
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