Fix with migration bad table value for nil table attr

db/migrate/20160927154248_change_emptyto_nil_in_preference_list_dossier_table.rb

@@ -0,0 +1,9 @@
+class ChangeEmptytoNilInPreferenceListDossierTable < ActiveRecord::Migration
+  class PreferenceListDossier < ActiveRecord::Base
+
+  end
+
+  def change
+    PreferenceListDossier.where(table: '').update_all table: nil
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20160926160051) do
+ActiveRecord::Schema.define(version: 20160927154248) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"