/**
* Generate the display of the response history part of the question. This
* is the table showing all the steps the question has been through.
*
* @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 response_history(question_attempt $qa, qbehaviour_renderer $behaviouroutput, qtype_renderer $qtoutput, question_display_options $options)
{
if (!$options->history) {
return '';
}
$table = new html_table();
$table->head = array(get_string('step', 'question'), get_string('time'), get_string('action', 'question'), get_string('state', 'question'));
if ($options->marks >= question_display_options::MARK_AND_MAX) {
$table->head[] = get_string('marks', 'question');
}
foreach ($qa->get_full_step_iterator() as $i => $step) {
$stepno = $i + 1;
$rowclass = '';
if ($stepno == $qa->get_num_steps()) {
$rowclass = 'current';
} else {
if (!empty($options->questionreviewlink)) {
$url = new moodle_url($options->questionreviewlink, array('slot' => $qa->get_slot(), 'step' => $i));
$stepno = $this->output->action_link($url, $stepno, new popup_action('click', $url, 'reviewquestion', array('width' => 450, 'height' => 650)), array('title' => get_string('reviewresponse', 'question')));
}
}
$restrictedqa = new question_attempt_with_restricted_history($qa, $i, null);
$user = new stdClass();
$user->id = $step->get_user_id();
$row = array($stepno, userdate($step->get_timecreated(), get_string('strftimedatetimeshort')), s($qa->summarise_action($step)), $restrictedqa->get_state_string($options->correctness));
if ($options->marks >= question_display_options::MARK_AND_MAX) {
$row[] = $qa->format_fraction_as_mark($step->get_fraction(), $options->markdp);
}
$table->rowclasses[] = $rowclass;
$table->data[] = $row;
}
return html_writer::tag('h4', get_string('responsehistory', 'question'), array('class' => 'responsehistoryheader')) . $options->extrahistorycontent . html_writer::tag('div', html_writer::table($table, true), array('class' => 'responsehistoryheader'));
}
/**
* Like {@link render_question()} but displays the question at the past step
* indicated by $seq, rather than showing the latest step.
*
* @param int $seq the seq number of the past state to display.
* @param question_display_options $options controls how the question is rendered.
* @param string|null $number The question number to display. 'i' is a special
* value that gets displayed as Information. Null means no number is displayed.
* @return string HTML fragment representing the question.
*/
public function render_at_step($seq, $options, $number, $preferredbehaviour)
{
$restrictedqa = new question_attempt_with_restricted_history($this, $seq, $preferredbehaviour);
return $restrictedqa->render($options, $number);
}
