diff --git a/db/migrate/20100716121029_add_valid_flag_to_appearances.rb b/db/migrate/20100716121029_add_valid_flag_to_appearances.rb
new file mode 100644
index 0000000..efca95a
--- /dev/null
+++ b/db/migrate/20100716121029_add_valid_flag_to_appearances.rb
@@ -0,0 +1,11 @@
+class AddValidFlagToAppearances < ActiveRecord::Migration
+  def self.up
+     add_column :appearances, :valid_record, :boolean, :default => true
+     add_column :appearances, :validity_information, :string
+  end
+
+  def self.down
+     remove_column :appearances, :valid_record
+     remove_column :appearances, :validity_information
+  end
+end
--
libgit2 0.21.2