Using paperclip to attach images

.gitignore

@@ -16,3 +16,6 @@
 
 # ignore al .DS_store files of MAC OSX
 .DS_Store
+
+public/system
+.project

Gemfile

@@ -17,6 +17,7 @@ group :assets do
 end
 
 gem 'jquery-rails'
+gem 'paperclip'
 
 # To use ActiveModel has_secure_password
 # gem 'bcrypt-ruby', '~> 3.0.0'

Gemfile.lock

@@ -32,6 +32,7 @@ GEM
     ansi (1.4.1)
     arel (2.2.1)
     builder (3.0.0)
+    cocaine (0.2.0)
     coffee-rails (3.1.1)
       coffee-script (>= 2.2.0)
       railties (~> 3.1.0)
@@ -40,20 +41,25 @@ GEM
       execjs
     coffee-script-source (1.1.3)
     erubis (2.7.0)
-    execjs (1.2.9)
+    execjs (1.2.11)
       multi_json (~> 1.0)
     hike (1.2.1)
     i18n (0.6.0)
-    jquery-rails (1.0.18)
+    jquery-rails (1.0.19)
       railties (~> 3.0)
       thor (~> 0.14)
-    json (1.6.1)
+    json (1.6.3)
     mail (2.3.0)
       i18n (>= 0.4.0)
       mime-types (~> 1.16)
       treetop (~> 1.4.8)
     mime-types (1.17.2)
-    multi_json (1.0.3)
+    multi_json (1.0.4)
+    paperclip (2.4.5)
+      activerecord (>= 2.3.0)
+      activesupport (>= 2.3.2)
+      cocaine (>= 0.0.2)
+      mime-types
     polyglot (0.3.3)
     rack (1.3.5)
     rack-cache (1.1)
@@ -82,7 +88,7 @@ GEM
     rake (0.9.2.2)
     rdoc (3.11)
       json (~> 1.4)
-    sass (3.1.10)
+    sass (3.1.11)
     sass-rails (3.1.5)
       actionpack (~> 3.1.0)
       railties (~> 3.1.0)
@@ -92,7 +98,7 @@ GEM
       hike (~> 1.2)
       rack (~> 1.0)
       tilt (~> 1.1, != 1.3.0)
-    sqlite3 (1.3.4)
+    sqlite3 (1.3.5)
     thor (0.14.6)
     tilt (1.3.3)
     treetop (1.4.10)
@@ -111,6 +117,7 @@ PLATFORMS
 DEPENDENCIES
   coffee-rails (~> 3.1.1)
   jquery-rails
+  paperclip
   rails (= 3.1.3)
   sass-rails (~> 3.1.5)
   sqlite3

app/models/site.rb

@@ -1,3 +1,4 @@
 class Site < ActiveRecord::Base
     belongs_to :type
+    has_attached_file :image
 end

app/views/sites/_form.html.erb

@@ -36,8 +36,8 @@
     <%= f.text_field :zoom %>
   </div>
   <div class="field">
-    <%= f.label :image_url %><br />
-    <%= f.text_field :image_url %>
+    <%= f.label :image %><br />
+    <%= f.file_field :image %>
   </div>
   <div class="actions">
     <%= f.submit %>

app/views/sites/show.html.erb

@@ -2,7 +2,7 @@
 
   <h1><%= @site.type.name if @site.type %></h1> 
 
-  <%= image_tag(@site.image_url, :class => 'site_image') %>
+  <%= image_tag(@site.image.url, :class => 'site_image') %>
 
   <h3><%= @site.name %></h3> 
 

db/migrate/20111207113324_add_image_columns_to_site.rb

@@ -0,0 +1,15 @@
+class AddImageColumnsToSite < ActiveRecord::Migration
+   def self.up
+    add_column :sites, :image_file_name,    :string
+    add_column :sites, :image_content_type, :string
+    add_column :sites, :image_file_size,    :integer
+    add_column :sites, :image_updated_at,   :datetime
+  end
+
+  def self.down
+    remove_column :sites, :image_file_name
+    remove_column :sites, :image_content_type
+    remove_column :sites, :image_file_size
+    remove_column :sites, :image_updated_at
+  end
+end

db/schema.rb

@@ -11,18 +11,22 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20111127165324) do
+ActiveRecord::Schema.define(:version => 20111207113324) do
 
   create_table "sites", :force => true do |t|
     t.string   "name"
     t.text     "description"
     t.integer  "type_id"
-    t.decimal  "latitude",    :precision => 8, :scale => 6
-    t.decimal  "longitude",   :precision => 8, :scale => 6
-    t.decimal  "zoom",        :precision => 8, :scale => 6
+    t.decimal  "latitude",           :precision => 8, :scale => 6
+    t.decimal  "longitude",          :precision => 8, :scale => 6
+    t.decimal  "zoom",               :precision => 8, :scale => 6
     t.string   "image_url"
     t.datetime "created_at"
     t.datetime "updated_at"
+    t.string   "image_file_name"
+    t.string   "image_content_type"
+    t.integer  "image_file_size"
+    t.datetime "image_updated_at"
   end
 
   create_table "types", :force => true do |t|