/**
* Create a new program type assignment activity
*
* Given an object containing all the necessary data,
* (defined by the form in mod.html) this function
* will create a new instance and return the id number
* of the new instance.
* The due data is added to the calendar
* Tests are added to assignment_oj_tests table
*
* @param object $assignment The data from the form on mod.html
* @return int The id of the assignment
*/
function add_instance($assignment)
{
// Add assignment instance
$assignment->id = parent::add_instance($assignment);
if ($assignment->id) {
$this->after_add_update($assignment);
}
return $assignment->id;
}
