Setup controller for friendships

app/controllers/friendships_controller.rb

@@ -0,0 +1,53 @@
+class FriendshipsController < ApplicationController
+  before_action :set_friendship, only: [:show, :destroy]
+
+  def index
+    @friendships = Friendship.all
+  end
+
+  def show
+  end
+
+  def new
+    @friendship = Friendship.new
+  end
+
+  def create
+    @friendship = Friendship.new(friendship_params)
+
+    respond_to do |format|
+      if @friendship.save
+        format.html {
+          redirect_to @friendship,
+              notice: 'Friendship was successfully created.'
+        }
+        format.json { render :show, status: :created, location: @friendship }
+      else
+        format.html { render :new }
+        format.json {
+          render json: @friendship.errors, status: :unprocessable_entity
+        }
+      end
+    end
+  end
+
+  def destroy
+    @friendship.destroy
+    respond_to do |format|
+      format.html {
+        redirect_to friendships_url,
+            notice: 'Friendship was successfully destroyed.'
+      }
+      format.json { head :no_content }
+    end
+  end
+
+  private
+    def set_friendship
+      @friendship = Friendship.find(params[:id])
+    end
+
+    def friendship_params
+      params[:friendship]
+    end
+end

app/views/friendships/_form.html.erb

@@ -0,0 +1,17 @@
+<%= form_for(@friendship) do |f| %>
+  <% if @friendship.errors.any? %>
+    <div id="error_explanation">
+      <h2><%= pluralize(@friendship.errors.count, "error") %> prohibited this friendship from being saved:</h2>
+
+      <ul>
+      <% @friendship.errors.full_messages.each do |message| %>
+        <li><%= message %></li>
+      <% end %>
+      </ul>
+    </div>
+  <% end %>
+
+  <div class="actions">
+    <%= f.submit %>
+  </div>
+<% end %>

app/views/friendships/index.html.erb

@@ -0,0 +1,23 @@
+<h1>Listing friendships</h1>
+
+<table>
+  <thead>
+    <tr>
+      <th colspan="3"></th>
+    </tr>
+  </thead>
+
+  <tbody>
+    <% @friendships.each do |friendship| %>
+      <tr>
+        <td><%= link_to 'Show', friendship %></td>
+        <td><%= link_to 'Edit', edit_friendship_path(friendship) %></td>
+        <td><%= link_to 'Destroy', friendship, method: :delete, data: { confirm: 'Are you sure?' } %></td>
+      </tr>
+    <% end %>
+  </tbody>
+</table>
+
+<br>
+
+<%= link_to 'New Friendship', new_friendship_path %>

app/views/friendships/new.html.erb

@@ -0,0 +1,5 @@
+<h1>New friendship</h1>
+
+<%= render 'form' %>
+
+<%= link_to 'Back', friendships_path %>

app/views/friendships/show.html.erb

@@ -0,0 +1,4 @@
+<p id="notice"><%= notice %></p>
+
+<%= link_to 'Edit', edit_friendship_path(@friendship) %> |
+<%= link_to 'Back', friendships_path %>

config/routes.rb

@@ -3,8 +3,9 @@ Rails.application.routes.draw do
   get 'auth/failure', to: redirect('/')
   get 'logout', to: 'sessions#destroy', as: 'logout'
 
-  resources :sessions, only: [ :create, :destroy ]
   resources :home, only: [ :show ]
+  resources :friendships, only: [ :index, :show, :create, :new, :destroy ]
+  resources :sessions, only: [ :create, :destroy ]
 
   root to: 'home#show'
 end

test/controllers/friendships_controller_test.rb

@@ -0,0 +1,49 @@
+require 'test_helper'
+
+class FriendshipsControllerTest < ActionController::TestCase
+  setup do
+    @friendship = friendships(:one)
+  end
+
+  test "should get index" do
+    get :index
+    assert_response :success
+    assert_not_nil assigns(:friendships)
+  end
+
+  test "should get new" do
+    get :new
+    assert_response :success
+  end
+
+  test "should create friendship" do
+    assert_difference('Friendship.count') do
+      post :create, friendship: {  }
+    end
+
+    assert_redirected_to friendship_path(assigns(:friendship))
+  end
+
+  test "should show friendship" do
+    get :show, id: @friendship
+    assert_response :success
+  end
+
+  test "should get edit" do
+    get :edit, id: @friendship
+    assert_response :success
+  end
+
+  test "should update friendship" do
+    patch :update, id: @friendship, friendship: {  }
+    assert_redirected_to friendship_path(assigns(:friendship))
+  end
+
+  test "should destroy friendship" do
+    assert_difference('Friendship.count', -1) do
+      delete :destroy, id: @friendship
+    end
+
+    assert_redirected_to friendships_path
+  end
+end