user has a image url field for user picture

app/helpers/application_helper.rb

@@ -37,15 +37,15 @@ module ApplicationHelper
     link_to person.real_name, person_url(person)
   end
 
-  def owner_picture
-    default = "/images/user/default.jpg"
-    image = "/images/user/#{User.owner.profile.last_name.gsub(/ /,'').downcase}.jpg"
-
-    if File.exist?("public/images/user/#{User.owner.profile.last_name.gsub(/ /,'').downcase}.jpg")
-      image_tag image, :id => "user_picture"
-    else
-      image_tag default, :id => "user_picture"
+  def owner_image_tag
+    person_image_tag(User.owner)
   end
+
+  def person_image_tag(person)
+    image_location = person.profile.image_url
+    image_location ||= "/images/user/default.jpg"
+
+    image_tag image_location, :class => "person_picture"
   end
 
   def new_request(request_count)

app/models/photo.rb

@@ -1,4 +1,4 @@
-class Photo
+class Photo < Post
   require 'carrierwave/orm/mongomapper'
   include MongoMapper::Document
 

app/models/profile.rb

@@ -7,6 +7,7 @@ class Profile
 
   key :first_name, String
   key :last_name, String
+  key :image_url, String
 
   validates_presence_of :first_name, :last_name
 

app/views/comments/_comment.html.haml

@@ -1,4 +1,5 @@
 %li.comment{:id => post.id} 
+  = person_image_tag(post.person)
   %span.from
     = link_to_person post.person
     = auto_link post.text

app/views/layouts/application.html.haml

@@ -43,7 +43,7 @@
     .container
       .span-24.last
         .span-3.append-1.last
-          = link_to owner_picture, root_path
+          = link_to person_image_tag(User.owner), root_path
           = link_to "Edit your profile", edit_user_path(current_user)
           %br
           %br

app/views/status_messages/_status_message.html.haml

@@ -1,4 +1,7 @@
 %li.message{:id => post.id, :class => ("mine" if mine?(post))}
+
+  = person_image_tag(post.person)
+
   %span.from
     = link_to post.person.real_name, post.person 
     = auto_link post.message

app/views/users/edit.html.haml

@@ -10,6 +10,9 @@
     %p
       = p.label :last_name 
       = p.text_field :last_name, :value => @profile.last_name
+    %p
+      = p.label :image_url
+      = p.text_field :image_url, :value => @profile.image_url
 
   %p
     = f.label :email

public/stylesheets/application.css

@@ -118,7 +118,7 @@ ul#stream, ul#friend_stream {
   color: #666666; }
   ul#stream > li, ul#friend_stream > li {
     list-style: none;
-    padding: 1em 0;
+    padding: 15px 0;
     border-bottom: 1px solid #f1f1f1;
     margin-bottom: 5px; }
 
@@ -190,13 +190,18 @@ ul.comment_set {
       margin-top: -5px;
       padding-bottom: 8px; }
 
-img#profile_picture {
-  width: 100%; }
-
-img#user_picture {
-  width: 100%;
+img.person_picture {
+  max-width: 100%;
   border-radius: 3px;
-  -moz-border-radius: 3px; }
+  -moz-border-radius: 3px;
+  display: inline block; }
+
+li.message > img.person_picture,
+li.comment > img.person_picture {
+  height: 30px;
+  display: absolute;
+  float: left;
+  margin-right: 10px; }
 
 .pagination a {
   padding: 3px; }

public/stylesheets/sass/application.sass

@@ -130,7 +130,7 @@ ul#stream, ul#friend_stream
   :color #666
   > li
     :list-style none
-    :padding 1em 0
+    :padding 15px 0
     :border
       :bottom 1px solid #f1f1f1
     :margin-bottom 5px
@@ -227,14 +227,19 @@ ul.comment_set
       :padding
         :bottom 8px
 
-
-img#profile_picture
-  :width 100%
-
-img#user_picture
-  :width 100%
+img.person_picture
+  :max-width 100%
   :border-radius 3px
   :-moz-border-radius 3px
+  :display inline block
+
+li.message > img.person_picture,
+li.comment > img.person_picture
+  :height 30px
+  :display absolute
+  :float left
+  :margin
+    :right 10px
   
 .pagination
   a