fixes #2230

db/migrate/20141120045943_create_dmail_filters.rb

@@ -0,0 +1,12 @@
+class CreateDmailFilters < ActiveRecord::Migration
+  def change
+    create_table :dmail_filters do |t|
+      t.integer :user_id, :null => false
+      t.text :words, :null => false
+
+      t.timestamps
+    end
+
+    add_index :dmail_filters, :user_id, :unique => true
+  end
+end