pagination.rb

diff --git a/app/controllers/albums_controller.rb b/app/controllers/albums_controller.rb
index 813b51f..10834cd 100644
--- a/app/controllers/albums_controller.rb
+++ b/app/controllers/albums_controller.rb
@@ -4,12 +4,23 @@ class AlbumsController < ApplicationController
   # GET /albums
   # GET /albums.json
   def index
-    @albums = Album.all
+    params[:page] ||= "1"
+    @albums = Album.list_page(params[:page])
+    @page = params[:page].to_i
+    @total_pages = Album.count
   end
 
   # GET /albums/1
   # GET /albums/1.json
   def show
+    @page = params[:page].to_i
+    @total_pages = Album.count
+  end
+
+  def list
+    params[:page] ||= "1"
+    @album = Album.list_page(params[:page]).first
+    redirect_to album_url(@album, page: params[:page])
   end
 
   # GET /albums/new
diff --git a/app/models/album.rb b/app/models/album.rb
index ad6f6fe..b84e509 100644
--- a/app/models/album.rb
+++ b/app/models/album.rb
@@ -6,6 +6,10 @@ class Album < ActiveRecord::Base
   enum condition: [ :new_condition, :used_condition ]
 
   belongs_to :artist
+
+  def self.list_page(num = nil)
+    limit(1).offset(1 * ((num = num.to_i - 1) < 0 ? 0 : num))
+  end
   
   def self.Types
     %w(Lp Cd)
diff --git a/app/views/albums/index.html.erb b/app/views/albums/index.html.erb
index 53d94ad..730c734 100644
--- a/app/views/albums/index.html.erb
+++ b/app/views/albums/index.html.erb
@@ -31,3 +31,11 @@
 <br>
 
 <%= link_to 'New Album', new_album_path %>
+
+<span class="prev">
+  <%= link_to_unless (@page == 1), "&lsaquo; Prev".html_safe, albums_path(page: (@page - 1)), rel: 'prev' %> 
+</span>
+
+<span class="next">
+  <%= link_to_unless (@page == @total_pages), "Next &rsaquo;".html_safe, albums_path(page: (@page + 1)), :rel => 'next'%>
+</span>
diff --git a/app/views/albums/show.html.erb b/app/views/albums/show.html.erb
index ff2abaa..a485e85 100644
--- a/app/views/albums/show.html.erb
+++ b/app/views/albums/show.html.erb
@@ -22,3 +22,29 @@
 
 <%= link_to 'Edit', edit_album_path(@album) %> |
 <%= link_to 'Back', albums_path %>
+
+<nav class="pagination">
+<span class="first">
+  <%= link_to_unless (@page == 1), "&laquo; First".html_safe, list_albums_path(page: 1) %>
+</span>
+<span class="prev">
+  <%= link_to_unless (@page == 1), "&lsaquo; Prev".html_safe, list_albums_path(page: (@page - 1)), rel: 'prev' %> 
+</span>
+
+<% each_page do |page| -%>
+  <% if page.left_outer? || page.right_outer? || page.inside_window? -%>
+    <span class="page<%= ' current' if page.current? %>">
+      <%= link_to_unless (@page == page), page, list_albums_path(page: page), {:rel => page == @page + 1 ? 'next' : page == @page - 1 ? 'prev' : nil} %>
+    </span>
+  <% elsif !page.was_truncated? -%>
+    <span class="page gap"><%= "&hellip;".html_safe %></span>
+  <% end -%>
+<% end %>
+
+<span class="next">
+  <%= link_to_unless (@page == @total_pages), "Next &rsaquo;".html_safe, list_albums_path(page: (@page + 1)), :rel => 'next'%>
+</span>
+<span class="last">
+  <%= link_to_unless (page == @total_pages), "Last &raquo;".html_safe, list_albums_path(page: @total_pages) %>
+</span>
+</nav>
diff --git a/config/routes.rb b/config/routes.rb
index 597644a..2d021d6 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -5,6 +5,8 @@ Rails.application.routes.draw do
   end
 
   resources :albums
+
+  get '/list_albums', to: 'albums#list', as: 'list_albums'
   
   root 'artists#index'
 end