Tim Hunt 5d2465c3f4 MDL-20636 numerical qtype: assorted changes
1. database upgrade to merge instructions into the questiontext field,
and remove the UNITDISPLAY option.

2. Changes to the validation in deferred feedback mode, so students
are warned about incomplete answers.

3. Using this to wark students if they enter an answer that is not
recognised as a number.
2011-04-28 20:06:47 +01:00
..

Question import/export formats
==============================

This directory contains plug-ins to supprt importing and exporting questions in
a variety of formats.

Each sub-module must contain at least a format.php file containing a class that
contains functions for reading, writing, importing and exporting questions.

For correct operation the class name must be based on the name of the plugin.
For example:

plugin: webct
class:  class qformat_webct extends qformat_default {

Most of them are based on the class found in question/format.php.
See the comments therein for more information.