Merge pull request #498 from warpc/430-delete_old_bs

[refs #430] Delete containers after deleting build list

app/models/build_list.rb

@@ -98,6 +98,7 @@ class BuildList < ActiveRecord::Base
 
   before_create :set_default_status
   after_create :place_build
+  after_destroy :delete_container
 
   def self.human_status(status)
     I18n.t("layout.build_lists.statuses.#{HUMAN_STATUSES[status]}")
@@ -192,6 +193,15 @@ class BuildList < ActiveRecord::Base
     save
   end
 
+   
+  def delete_container
+    if can_cancel?
+      BuildServer.delete_build_list bs_id
+    else
+      BuildServer.delete_container bs_id if bs_id # prevent error if bs_id does not set
+    end
+  end
+
   def build_package(pkg_hash, package_type, prj)
     packages.create(pkg_hash) do |p|
       p.project = prj