/**
* Generate the display of the formulation part of the question. This is the
* area that contains the quetsion text, and the controls for students to
* input their answers. Some question types also embed feedback, for
* example ticks and crosses, in this area.
*
* @param question_attempt $qa the question attempt to display.
* @param qbehaviour_renderer $behaviouroutput the renderer to output the behaviour
* specific parts.
* @param qtype_renderer $qtoutput the renderer to output the question type
* specific parts.
* @param question_display_options $options controls what should and should not be displayed.
* @return HTML fragment.
*/
protected function formulation(question_attempt $qa, qbehaviour_renderer $behaviouroutput, qtype_renderer $qtoutput, question_display_options $options)
{
//add the question's formulation (main question content)
return $qtoutput->formulation_and_controls($qa, $options);
}
protected function manual_comment(question_attempt $qa, qbehaviour_renderer $behaviouroutput, qtype_renderer $qtoutput, question_display_options $options)
{
return $qtoutput->manual_comment($qa, $options) . $behaviouroutput->manual_comment($qa, $options);
}
public function feedback(question_attempt $qa, question_display_options $options)
{
$output = '';
if ($options->feedback) {
$output .= $this->stack_specific_feedback($qa, $options);
} else {
if ($qa->get_behaviour_name() == 'interactivecountback') {
// The behaviour name test here is a hack. The trouble is that interactive
// behaviour does not show feedback if the input is invalid, but we want
// to show the CAS errors from the PRT.
$output .= $this->stack_specific_feedback_errors_only($qa);
}
}
$output .= parent::feedback($qa, $options);
return $output;
}
