10.1 -> 10.3.2

app/assets/stylesheets/custom.css.scss

@@ -188,4 +188,32 @@ input {
       border-bottom: 1px solid $grayLighter;
     }
   }
+}
+
+/* microposts */
+
+.microposts {
+  list-style: none;
+  margin: 10px 0 0 0;
+
+  li {
+    padding: 10px 0;
+    border-top: 1px solid #e8e8e8;
+  }
+}
+.content {
+  display: block;
+}
+.timestamp {
+  color: $grayLight;
+}
+.gravatar {
+  float: left;
+  margin-right: 10px;
+}
+aside {
+  textarea {
+    height: 100px;
+    margin-bottom: 5px;
+  }
 }
\ No newline at end of file

app/controllers/microposts_controller.rb

+class MicropostsController < ApplicationController
+  before_action :signed_in_user, only: [:create, :destroy]
+
+  def index
+  end
+
+  def create
+    @micropost = current_user.microposts.build(micropost_params)
+    if @micropost.save
+      flash[:success] = "Micropost created!"
+      redirect_to root_url
+    else
+      render 'static_pages/home'
+    end
+  end
+
+  def destroy
+  end
+
+  private
+
+  def micropost_params
+    params.require(:micropost).permit(:content)
+  end
+end
\ No newline at end of file

app/controllers/static_pages_controller.rb

 class StaticPagesController < ApplicationController
   def home
+    @micropost = current_user.microposts.build if signed_in?
   end
 
   def help

app/controllers/users_controller.rb

@@ -9,6 +9,7 @@ class UsersController < ApplicationController
 
   def show
     @user = User.find(params[:id])
+    @microposts = @user.microposts.paginate(page: params[:page])
   end
 
   def new
@@ -54,13 +55,6 @@ class UsersController < ApplicationController
 
   # Before filters
 
-  def signed_in_user
-    unless signed_in?
-      store_location
-      redirect_to signin_url, notice: "Please sign in."
-    end
-  end
-
   def correct_user
     @user = User.find(params[:id])
     redirect_to(root_url) unless current_user?(@user)

app/helpers/sessions_helper.rb

@@ -23,6 +23,13 @@ module SessionsHelper
     user == current_user
   end
 
+  def signed_in_user
+    unless signed_in?
+      store_location
+      redirect_to signin_url, notice: "Please sign in."
+    end
+  end
+
   def sign_out
     current_user.update_attribute(:remember_token, User.digest(User.new_remember_token))
     cookies.delete(:remember_token)

app/models/micropost.rb

+class Micropost < ActiveRecord::Base
+  belongs_to :user
+  default_scope -> { order('created_at DESC') }
+  validates :content, presence: true, length: { maximum: 140 }
+  validates :user_id, presence: true
+end

app/models/user.rb

 class User < ActiveRecord::Base
+  has_many :microposts, dependent: :destroy
+
   validates :name, presence: true, length: { maximum: 50 }
   VALID_EMAIL_REGEX = /[\w+\-.]+@[a-z\d*\-.]+\.[a-z]+/i
   validates :email, presence: true, format: { with: VALID_EMAIL_REGEX }, uniqueness: { case_sensitive: false }
   validates :password, length: { minimum: 6 }
+
   before_save { self.email = email.downcase }
   before_create :create_remember_token
   has_secure_password

app/views/microposts/_micropost.html.erb

+<li>
+  <span class="content"><%= micropost.content %></span>
+  <span class="timestamp">
+    Posted <%= time_ago_in_words(micropost.created_at) %> ago.
+  </span>
+</li>
\ No newline at end of file

app/views/shared/_error_messages.html.erb

-<% if @user.errors.any? %>
+<% if object.errors.any? %>
   <div id="error_explanation">
     <div class="alert alert-error">
-      The form contains <%= pluralize(@user.errors.count, "error") %>.
+      The form contains <%= pluralize(object.errors.count, "error") %>.
     </div>
     <ul>
-    <% @user.errors.full_messages.each do |msg| %>
+    <% object.errors.full_messages.each do |msg| %>
       <li>* <%= msg %></li>
     <% end %>
     </ul>

app/views/shared/_micropost_form.html.erb

+<%= form_for(@micropost) do |f| %>
+  <%= render 'shared/error_messages', object: f.object %>
+  <div class="field">
+    <%= f.text_area :content, placeholder: "Compose new micropost..." %>
+  </div>
+  <%= f.submit "Post", class: "btn btn-large btn-primary" %>
+<% end %>
\ No newline at end of file

app/views/shared/_user_info.html.erb

+<%= link_to gravatar_for(current_user, size: 52), current_user %>
+<h1>
+  <%= current_user.name %>
+</h1>
+<span>
+  <%= link_to "view my profile", current_user %>
+</span>
+<span>
+  <%= pluralize(current_user.microposts.count, "micropost") %>
+</span>
\ No newline at end of file

app/views/static_pages/home.html.erb

-<div class="center hero-unit">
-  <h1>Welcome to the Sample App</h1>
-  <h2>
-    This is the home page for the
-    <a href="http://railstutorial.org/">Ruby on Rails Tutorial</a>
-    sample application.
-  </h2>
-  <%= link_to "Sign up now!", signup_path, class: "btn btn-large btn-primary" %>
-</div>
+<% if signed_in? %>
+  <div class="row">
+    <aside class="span4">
+      <section>
+        <%= render 'shared/user_info' %>
+      </section>
+      <section>
+        <%= render 'shared/micropost_form' %>
+      </section>
+    </aside>
+  </div>
+<% else %>
+  <div class="center hero-unit">
+    <h1>Welcome to the Sample App</h1>
+    <h2>
+      This is the home page for the
+      <a href="http://railstutorial.org/">Ruby on Rails Tutorial</a>
+      sample application.
+    </h2>
+    <%= link_to "Sign up now!", signup_path, class: "btn btn-large btn-primary" %>
+  </div>
 
-<%= link_to image_tag("rails.png", alt: "Rails"), 'http://rubyonrails.org/' %>
+  <%= link_to image_tag("rails.png", alt: "Rails"), 'http://rubyonrails.org/' %>
+<% end %>
\ No newline at end of file

app/views/users/_fields.html.erb

-<%= render 'shared/error_messages' %>
+<%= render 'shared/error_messages', object: f.object %>
 
 <%= f.label :name %>
 <%= f.text_field :name %>

app/views/users/show.html.erb

@@ -8,4 +8,13 @@
       </h1>
     </section>
   </aside>
+  <div class="span8">
+    <% if @user.microposts.any? %>
+      <h3>Microposts (<%= @user.microposts.count %>)</h3>
+      <ol class="microposts">
+        <%= render @microposts %>
+      </ol>
+      <%= will_paginate @microposts %>
+    <% end %>
+  </div>
 </div>
\ No newline at end of file

config/routes.rb

@@ -11,4 +11,5 @@ Rails.application.routes.draw do
   delete '/signout', to: 'sessions#destroy'
   resources :users
   resources :sessions, only: [:new, :create, :destroy]
+  resources :microposts, only: [:create, :destroy]
 end

db/migrate/20200706085817_create_microposts.rb

+class CreateMicroposts < ActiveRecord::Migration
+  def change
+    create_table :microposts do |t|
+      t.string :content
+      t.integer :user_id
+
+      t.timestamps null: false
+    end
+    add_index :microposts, [:user_id, :created_at]
+  end
+end

db/schema.rb

@@ -11,7 +11,16 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20200706063440) do
+ActiveRecord::Schema.define(version: 20200706085817) do
+
+  create_table "microposts", force: :cascade do |t|
+    t.string   "content"
+    t.integer  "user_id"
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+  end
+
+  add_index "microposts", ["user_id", "created_at"], name: "index_microposts_on_user_id_and_created_at"
 
   create_table "users", force: :cascade do |t|
     t.string   "name"

lib/tasks/sample_data.rake

@@ -15,5 +15,10 @@ namespace :db do
                    password: password,
                    password_confirmation: password)
     end
+    users = User.all.limit(6)
+    50.times do
+      content = Faker::Lorem.sentence(5)
+      users.each { |user| user.microposts.create!(content: content) }
+    end
   end
 end
\ No newline at end of file

spec/factories.rb

@@ -9,4 +9,9 @@ FactoryGirl.define do
       admin true
     end
   end
+
+  factory :micropost do
+    content "Lorem ipsum"
+    user
+  end
 end
\ No newline at end of file

spec/models/micropost_spec.rb

+require 'spec_helper'
+
+describe Micropost do
+  
+  let(:user) { FactoryGirl.create(:user) }
+  before do
+    #This code is not idiomatically correct.
+    @micropost = user.microposts.build(content: "Lorem ipsum")
+  end
+
+  subject { @micropost }
+  
+  it { should respond_to(:content) }
+  it { should respond_to(:user_id) }
+  it { should respond_to(:user) }
+  its(:user) { should eq user }
+
+  it { should be_valid }
+
+  describe "when user_id is not present" do
+    before { @micropost.user_id = nil }
+    it { should_not be_valid }
+  end
+
+  describe "with blank content" do
+    before { @micropost.content = " " }
+    it { should_not be_valid }
+  end
+  
+  describe "with content that is too long" do
+    before { @micropost.content = "a" * 141 }
+    it { should_not be_valid }
+  end
+end

spec/models/user_spec.rb

@@ -13,6 +13,9 @@ describe User do
   it { should respond_to(:password_confirmation) }
   it { should respond_to(:authenticate) }
 
+  it { should respond_to(:admin) }
+  it { should respond_to(:microposts) }
+
   it { should be_valid }
 
   describe "when name is not present" do
@@ -115,4 +118,27 @@ describe User do
     before { @user.save }
     its(:remember_token) { should_not be_blank }
   end
+
+  describe "micropost associations" do
+    before { @user.save }
+    let!(:older_micropost) do
+      FactoryGirl.create(:micropost, user: @user, created_at: 1.day.ago)
+    end
+    let!(:newer_micropost) do
+      FactoryGirl.create(:micropost, user: @user, created_at: 1.hour.ago)
+    end
+
+    it "should have the right microposts in the right order" do
+      expect(@user.microposts.to_a).to eq [newer_micropost, older_micropost]
+    end
+
+    it "should destroy associated microposts" do
+      microposts = @user.microposts.to_a
+      @user.destroy
+      expect(microposts).not_to be_empty
+      microposts.each do |micropost|
+        expect(Micropost.where(id: micropost.id)).to be_empty
+      end
+    end
+  end
 end

spec/requests/authentication_pages_spec.rb

@@ -63,6 +63,18 @@ describe "AuthenticationPages" do
         end
       end
 
+      describe "in the Microposts controller" do
+        describe "submitting to the create action" do
+          before { post microposts_path }
+          specify { expect(response).to redirect_to(signin_path) }
+        end
+
+        describe "submitting to the destroy action" do
+          before { delete micropost_path(FactoryGirl.create(:micropost)) }
+          specify { expect(response).to redirect_to(signin_path) }
+        end
+      end
+
       describe "in the Users controller" do
 
         describe "visiting the edit page" do

spec/requests/micropost_pages_spec.rb

+require 'spec_helper'
+
+describe "MicropostPages" do
+  subject { page }
+
+  let(:user) { FactoryGirl.create(:user) }
+  before { sign_in user }
+
+  describe "micropost creation" do
+    before { visit root_path }
+
+    describe "with invalid information" do
+
+      it "should not create a micropost" do
+        expect { click_button "Post" }.not_to change(Micropost, :count)
+      end
+
+      describe "error messages" do
+        before { click_button "Post" }
+        it { should have_content('error') }
+      end
+    end
+
+    describe "with valid information" do
+
+      before { fill_in 'micropost_content', with: "Lorem ipsum" }
+      it "should create a micropost" do
+        expect { click_button "Post" }.to change(Micropost, :count).by(1)
+      end
+    end
+  end
+end

spec/requests/user_pages_spec.rb

@@ -13,11 +13,19 @@ describe "User pages" do
 
   describe "profile page" do
     let(:user) { FactoryGirl.create(:user) }
+    let!(:m1) { FactoryGirl.create(:micropost, user: user, content: "Foo") }
+    let!(:m2) { FactoryGirl.create(:micropost, user: user, content: "Bar") }
     # Replace with code to make a user variable
     before { visit user_path(user) }
   
     it { should have_content(user.name) }
     it { should have_title(user.name) }
+
+    describe "microposts" do
+      it { should have_content(m1.content) }
+      it { should have_content(m2.content) }
+      it { should have_content(user.microposts.count) }
+    end
   end
 
   describe "signup" do