thru 10.3.2

app/controllers/microposts_controller.rb

@@ -0,0 +1,16 @@
+class MicropostsController < ApplicationController
+  before_filter :signed_in_user
+
+  def create
+    @micropost = current_user.microposts.build(params[:micropost])
+    if @micropost.save
+      flash[:success] = "Micropost created!"
+      redirect_to root_path
+    else
+      render 'static_pages/home'
+    end
+  end
+
+  def destroy
+  end
+end

app/controllers/static_pages_controller.rb

@@ -1,5 +1,6 @@
 class StaticPagesController < ApplicationController
   def home
+    @micropost = current_user.microposts.build if signed_in?
   end
 
   def help

app/controllers/users_controller.rb

@@ -49,11 +49,6 @@ def destroy
   end
 
   private
-
-    def signed_in_user
-      store_location
-      redirect_to signin_path, notice: "Please sign in." unless signed_in?
-    end
 
     def correct_user
       @user = User.find(params[:id])

app/helpers/sessions_helper.rb

@@ -20,6 +20,13 @@ def current_user?(user)
     user == current_user
   end
 
+  def signed_in_user
+    unless signed_in?
+      store_location
+      redirect_to signin_path, notice: "Please sign in."
+    end
+  end
+
   def redirect_back_or(default)
     redirect_to(session[:return_to] || default)
     clear_return_to

app/views/shared/_error_messages.html.erb

@@ -1,10 +1,11 @@
-<% if @user.errors.any? %>
+<% if object.errors.any? %>
   <div id="error_explanation">
-    <h2><%= pluralize(@user.errors.count, "error") %> 
-        prohibited this user from being saved:</h2>
+    <h2><%= pluralize(object.errors.count, "error") %> 
+        prohibited this <%= object.class.to_s.underscore.humanize.downcase %> 
+        from being saved:</h2>
     <p>There were problems with the following fields:</p>
     <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

@@ -0,0 +1,9 @@
+<%= form_for(@micropost) do |f| %>
+  <%= render 'shared/error_messages', object: f.object %>
+  <div class="field">
+    <%= f.text_area :content %>
+  </div>
+  <div class="actions">
+    <%= f.submit "Submit" %>
+  </div>
+<% end %>

app/views/shared/_user_info.html.erb

@@ -0,0 +1,11 @@
+<div class="user_info">
+  <a href="<%= user_path(current_user) %>">
+    <%= gravatar_for(current_user, size: 30) %>
+    <span class="user_name">
+      <%= current_user.name %>
+    </span>
+    <span class="microposts">
+      <%= pluralize(current_user.microposts.count, "micropost") %>
+    </span>
+  </a>
+</div>

app/views/static_pages/home.html.erb

@@ -1,10 +1,24 @@
-<% provide(:title, 'Home') %>
-<h1>Sample App</h1>
+<<% provide(:title, 'Home') %>
+<% if signed_in? %>
+  <table class="front">
+    <tr>
+      <td class="main">
+        <h1 class="micropost">What's up?</h1>
+        <%= render 'shared/micropost_form' %>
+      </td>
+      <td class="sidebar round">
+        <%= render 'shared/user_info' %>
+      </td>
+    </tr>
+  </table>
+<% else %>
+  <h1>Sample App</h1>
 
-<p>
-  This is the home page for the
-  <a href="http://railstutorial.org/">Ruby on Rails Tutorial</a>
-  sample application.
-</p>
+  <p>
+    This is the home page for the
+    <a href="http://railstutorial.org/">Ruby on Rails Tutorial</a>
+    sample application.
+  </p>
 
-<%= link_to "Sign up now!", signup_path, class: "signup_button round" %>
+  <%= link_to "Sign up now!", signup_path, class: "signup_button round" %>
+<% end %>

app/views/users/edit.html.erb

@@ -2,7 +2,7 @@
 <h1>Edit user</h1>
 
 <%= form_for(@user) do |f| %>
-  <%= render 'shared/error_messages' %>
+  <%= render 'shared/error_messages', object: f.object %>
   <div class="field">
     <%= f.label :name %><br />
     <%= f.text_field :name %>

app/views/users/new.html.erb

@@ -2,7 +2,7 @@
 <h1>Sign up</h1>
 
 <%= form_for(@user) do |f| %>
-  <%= render 'shared/error_messages' %>
+  <%= render 'shared/error_messages', object: f.object %>
   <div class="field">
     <%= f.label :name %><br />
     <%= f.text_field :name %>

config/routes.rb

@@ -1,6 +1,7 @@
 SampleApp::Application.routes.draw do
 resources :users
 resources :sessions, only: [:new, :create, :destroy]
+resources :microposts, only: [:create, :destroy]
 
 match '/signup', to: 'users#new'
 match '/signin', to: 'sessions#new'