Move contributor to post model

app/models/medium.rb

@@ -1,6 +1,5 @@
 class Medium < ActiveRecord::Base
   mount_uploader :asset, MediaUploader
 
-  belongs_to :contributor, :class_name => 'User'
   validates :asset, :presence => true
 end

app/models/post.rb

@@ -7,6 +7,7 @@ class Post < ActiveRecord::Base
   has_many :comments, :dependent => :destroy
   has_many :audios,   :dependent => :destroy
   has_many :media,    :dependent => :destroy
+  belongs_to :contributor, :class_name => 'User'
   accepts_nested_attributes_for :media
 
   attr_accessible :title, :content, :created_at, :media_attributes
@@ -77,9 +78,7 @@ def new_contribution(params, user)
       post = new(params)
       post.status = 'pending'
       post.created_at += 4.hours   # a las 4 de la mañana, para que no interfiera con los automáticos
-      post.media.each do |medium|
-        medium.contributor = user
-      end
+      post.contributor = user
       # Agrega un media vacío si no hay ninguno, para que falle la validación
       post.media << Medium.new if post.media.size == 0
       post

app/models/user.rb

@@ -2,7 +2,7 @@ class User < ActiveRecord::Base
   extend FriendlyId
   friendly_id :alias, :use => :slugged
   has_many :comments, :dependent => :nullify
-  has_many :contributions, :class_name => 'Medium', :foreign_key => :contributor_id, :dependent => :nullify
+  has_many :contributions, :class_name => 'Post', :foreign_key => :contributor_id, :dependent => :nullify
   validates :alias, :presence => true, :uniqueness => { :case_sensitive => false }
   before_save :update_gravatar_hash, :clean_role
   delegate :can?, :cannot?, :to => :ability

app/views/post_mailer/new_contribution.html.haml

@@ -5,7 +5,7 @@
 
 %body
   %p
-    Hay una nueva contribución para moderar:
+    Hay una nueva contribución de #{link_to @post.contributor.alias, user_url(@post.contributor)} para moderar:
   %p
     = link_to @post.title, post_url(@post)
   %p

app/views/post_mailer/new_contribution.text.haml

@@ -1,4 +1,4 @@
-Hay una nueva contribución para moderar:
+Hay una nueva contribución de #{user_url(@post.contributor)} para moderar:
 
 Título: #{@post.title}
 URL: #{post_url(@post)}

app/views/posts/_post.html.haml

@@ -26,4 +26,4 @@
   - if can?(:update, Post) && post.pending?
     %p.meta
       = link_to "Aprobar contribución", approve_contribution_admin_post_path(post)
-      (Enviado por #{link_to post.media.first.contributor.alias, post.media.first.contributor})
+      (Enviado por #{link_to post.contributor.alias, post.contributor})

db/migrate/20120308021742_move_contribution_to_posts.rb

@@ -0,0 +1,6 @@
+class MoveContributionToPosts < ActiveRecord::Migration
+  def change
+    remove_column :media, :contributor_id
+    add_column :posts, :contributor_id, :integer
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20120229020055) do
+ActiveRecord::Schema.define(:version => 20120308021742) do
 
   create_table "articles", :force => true do |t|
     t.string   "title"
@@ -51,10 +51,9 @@
     t.string   "name"
     t.string   "description"
     t.string   "asset"
-    t.datetime "created_at",     :null => false
-    t.datetime "updated_at",     :null => false
+    t.datetime "created_at",  :null => false
+    t.datetime "updated_at",  :null => false
     t.integer  "post_id"
-    t.integer  "contributor_id"
   end
 
   create_table "posts", :force => true do |t|
@@ -65,6 +64,7 @@
     t.string   "slug"
     t.datetime "created_at"
     t.datetime "updated_at"
+    t.integer  "contributor_id"
   end
 
   add_index "posts", ["created_at"], :name => "index_posts_on_created_at"