Add authlogic gem and configure people and person_sessions.

This doesn't work.

Author: DavidS

Gemfile

@@ -40,3 +40,5 @@ gem 'spring',        group: :development
 
 # required for travis
 gem 'rake', group: [:test]
+
+gem 'authlogic', '>= 3.4.0'

Gemfile.lock

@@ -28,6 +28,10 @@ GEM
       thread_safe (~> 0.1)
       tzinfo (~> 1.1)
     arel (5.0.1.20140414130214)
+    authlogic (3.4.2)
+      activerecord (>= 3.2)
+      activesupport (>= 3.2)
+      request_store (~> 1.0)
     builder (3.2.2)
     coffee-rails (4.0.1)
       coffee-script (>= 2.2.0)
@@ -75,6 +79,7 @@ GEM
     rake (10.3.2)
     rdoc (4.1.1)
       json (~> 1.4)
+    request_store (1.0.7)
     sass (3.2.19)
     sass-rails (4.0.3)
       railties (>= 4.0.0, < 5.0)
@@ -113,6 +118,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
+  authlogic (>= 3.4.0)
   coffee-rails (~> 4.0.0)
   jbuilder (~> 2.0)
   jquery-rails

app/assets/javascripts/person_sessions.js.coffee

@@ -0,0 +1,3 @@
+# Place all the behaviors and hooks related to the matching controller here.
+# All this logic will automatically be available in application.js.
+# You can use CoffeeScript in this file: http://coffeescript.org/

app/assets/stylesheets/person_sessions.css.scss

@@ -0,0 +1,3 @@
+// Place all the styles related to the person_sessions controller here.
+// They will automatically be included in application.css.
+// You can use Sass (SCSS) here: http://sass-lang.com/

app/controllers/application_controller.rb

@@ -2,4 +2,45 @@ class ApplicationController < ActionController::Base
   # Prevent CSRF attacks by raising an exception.
   # For APIs, you may want to use :null_session instead.
   protect_from_forgery with: :exception
+
+  # handle current user and session for the view
+  helper_method :current_person_session, :current_person
+
+  private
+    def current_person_session
+      return @current_person_session if defined?(@current_person_session)
+      @current_person_session = PersonSession.find
+    end
+
+    def current_person
+      return @current_person if defined?(@current_person)
+      @current_person = current_person_session && current_person_session.user
+    end
+
+    def require_person
+      unless current_person
+        store_location
+        flash[:notice] = "You must be logged in to access this page"
+        redirect_to login_path
+        return false
+      end
+    end
+
+    def require_no_person
+      if current_person
+        store_location
+        flash[:notice] = "You cannot access this page while logged in to another account"
+        redirect_to root_url
+        return false
+      end
+    end
+
+    def store_location
+      session[:return_to] = request.request_uri
+    end
+
+    def redirect_back_or_default(default)
+      redirect_to(session[:return_to] || default)
+      session[:return_to] = nil
+    end
 end

app/controllers/people_controller.rb

@@ -1,4 +1,7 @@
 class PeopleController < ApplicationController
+  before_filter :require_no_person, :only => [:new, :create]
+  before_filter :require_person, :only => [:show, :edit, :update]
+
   def new
   end
 

app/controllers/person_sessions_controller.rb

@@ -0,0 +1,24 @@
+class PersonSessionsController < ApplicationController
+  before_filter :require_no_person, :only => [:new, :create]
+  before_filter :require_person, :only => :destroy
+
+  def new
+    @user_session = PersonSession.new
+  end
+
+  def create
+    @user_session = PersonSession.new(params[:person_session])
+    if @user_session.save
+      flash[:notice] = "Login successful!"
+      redirect_back_or_default account_url
+    else
+      render :action => :new
+    end
+  end
+
+  def destroy
+    current_person_session.destroy
+    flash[:notice] = "Logout successful!"
+    redirect_back_or_default new_person_session_url
+  end
+end

app/helpers/person_sessions_helper.rb

@@ -0,0 +1,2 @@
+module PersonSessionsHelper
+end

app/models/person.rb

@@ -1,2 +1,5 @@
 class Person < ActiveRecord::Base
+  acts_as_authentic do |c|
+    # add config here
+  end
 end

app/models/person_session.rb

@@ -0,0 +1,2 @@
+class PersonSession < Authlogic::Session::Base
+end