save new album to current collection

app/controllers/albums_controller.rb

@@ -45,6 +45,9 @@ class AlbumsController < ApplicationController
     @album = Album.new(params[:album])
     @album.path = @album.title
     if @album.save
+      if params[:collection_id]
+        @album.collections << Collection.find( params[:collection_id] )
+      end
       flash[:notice] = "Album created!"
       redirect_to @album
     else

app/views/albums/_form.html.erb

@@ -3,9 +3,11 @@
 <% end %>
 
 <%= hidden_field_tag :all_tags, "'#{Tag.find(:all).map { |tag| tag.title }.join('\',\'')}'" %>
+<%= hidden_field_tag :collection_id, params[:collection_id] %>
 
 <%= form.label :title, :Title, {:class => 'big'} %><br />
 <%= form.text_field :title, {:class => 'big'} %><br />
+
 <%= form.label :description %><br />
 <%= form.text_area :description %><br />