public function test_quiz_format_question_grade()
{
$quiz = new stdClass();
$quiz->decimalpoints = 2;
$quiz->questiondecimalpoints = 2;
$this->assertEquals(quiz_format_question_grade($quiz, 0.12345678), format_float(0.12, 2));
$this->assertEquals(quiz_format_question_grade($quiz, 0), format_float(0, 2));
$this->assertEquals(quiz_format_question_grade($quiz, 1.0), format_float(1, 2));
$quiz->decimalpoints = 3;
$quiz->questiondecimalpoints = -1;
$this->assertEquals(quiz_format_question_grade($quiz, 0.12345678), format_float(0.123, 3));
$this->assertEquals(quiz_format_question_grade($quiz, 0), format_float(0, 3));
$this->assertEquals(quiz_format_question_grade($quiz, 1.0), format_float(1, 3));
$quiz->questiondecimalpoints = 4;
$this->assertEquals(quiz_format_question_grade($quiz, 0.12345678), format_float(0.1235, 4));
$this->assertEquals(quiz_format_question_grade($quiz, 0), format_float(0, 4));
$this->assertEquals(quiz_format_question_grade($quiz, 1.0), format_float(1, 4));
}
/**
* Return the grade obtained on a particular question.
* You must previously have called load_question_states to load the state
* data about this question.
*
* @param int $slot the number used to identify this question within this attempt.
* @return string the formatted grade, to the number of decimal places specified by the quiz.
*/
public function get_question_mark($slot)
{
return quiz_format_question_grade($this->get_quiz(), $this->quba->get_question_mark($slot));
}
/**
* Get the maximum mark for a question, formatted for display.
* @param int $slotnumber the index of the slot in question.
* @return string the maximum mark for the question in this slot.
*/
public function formatted_question_grade($slotnumber)
{
return quiz_format_question_grade($this->get_quiz(), $this->slotsinorder[$slotnumber]->maxmark);
}
require_capability('mod/quiz:manage', $modcontext);
$slot = $DB->get_record('quiz_slots', array('id' => $id), '*', MUST_EXIST);
echo json_encode(array('instancemaxmark' => quiz_format_question_grade($quiz, $slot->maxmark)));
break;
case 'updatemaxmark':
require_capability('mod/quiz:manage', $modcontext);
$slot = $structure->get_slot_by_id($id);
if ($structure->update_slot_maxmark($slot, $maxmark)) {
// Grade has really changed.
quiz_delete_previews($quiz);
quiz_update_sumgrades($quiz);
quiz_update_all_attempt_sumgrades($quiz);
quiz_update_all_final_grades($quiz);
quiz_update_grades($quiz, 0, true);
}
echo json_encode(array('instancemaxmark' => quiz_format_question_grade($quiz, $maxmark), 'newsummarks' => quiz_format_grade($quiz, $quiz->sumgrades)));
break;
case 'updatepagebreak':
require_capability('mod/quiz:manage', $modcontext);
$slots = $structure->update_page_break($quiz, $id, $value);
$json = array();
foreach ($slots as $slot) {
$json[$slot->slot] = array('id' => $slot->id, 'slot' => $slot->slot, 'page' => $slot->page);
}
echo json_encode(array('slots' => $json));
break;
case 'updatedependency':
require_capability('mod/quiz:manage', $modcontext);
$slot = $structure->get_slot_by_id($id);
$value = (bool) $value;
$structure->update_question_dependency($slot->id, $value);
/**
* Convert the raw grade stored in $attempt into a grade out of the maximum
* grade for this quiz.
*
* @param float $rawgrade the unadjusted grade, fof example $attempt->sumgrades
* @param object $quiz the quiz object. Only the fields grade, sumgrades and decimalpoints are used.
* @param bool|string $format whether to format the results for display
* or 'question' to format a question grade (different number of decimal places.
* @return float|string the rescaled grade, or null/the lang string 'notyetgraded'
* if the $grade is null.
*/
function quiz_rescale_grade($rawgrade, $quiz, $format = true) {
if (is_null($rawgrade)) {
$grade = null;
} else if ($quiz->sumgrades >= 0.000005) {
$grade = $rawgrade * $quiz->grade / $quiz->sumgrades;
} else {
$grade = 0;
}
if ($format === 'question') {
$grade = quiz_format_question_grade($quiz, $grade);
} else if ($format) {
$grade = quiz_format_grade($quiz, $grade);
}
return $grade;
}
/**
* Convert the raw grade stored in $attempt into a grade out of the maximum
* grade for this quiz.
*
* @param float $rawgrade the unadjusted grade, fof example $attempt->sumgrades
* @param object $quiz the quiz object. Only the fields grade, sumgrades, decimalpoints and questiondecimalpoints are used.
* @param mixed $round false = don't round, true = round using quiz_format_grade, 'question' = round using quiz_format_question_grade.
* @return float the rescaled grade.
*/
function quiz_rescale_grade($rawgrade, $quiz, $round = true)
{
if ($quiz->sumgrades != 0) {
$grade = $rawgrade * $quiz->grade / $quiz->sumgrades;
if ($round === 'question') {
// === really necessary here true == 'question' is true in PHP!
$grade = quiz_format_question_grade($quiz, $grade);
} else {
if ($round) {
$grade = quiz_format_grade($quiz, $grade);
}
}
} else {
$grade = 0;
}
return $grade;
}
/**
* Display the 'marked out of' information for a question.
* Along with the regrade action.
* @param \stdClass $quiz the quiz settings from the database.
* @param \stdClass $question data from the question and quiz_slots tables.
* @return string HTML to output.
*/
public function marked_out_of_field($quiz, $question)
{
if ($question->length == 0) {
$output = html_writer::span('', 'instancemaxmark decimalplaces_' . quiz_get_grade_format($quiz));
$output .= html_writer::span($this->pix_icon('spacer', '', 'moodle', array('class' => 'editicon visibleifjs', 'title' => '')), 'editing_maxmark');
return html_writer::span($output, 'instancemaxmarkcontainer infoitem');
}
$output = html_writer::span(quiz_format_question_grade($quiz, $question->maxmark), 'instancemaxmark decimalplaces_' . quiz_get_grade_format($quiz), array('title' => get_string('maxmark', 'quiz')));
$output .= html_writer::span(html_writer::link(new \moodle_url('#'), $this->pix_icon('t/editstring', '', 'moodle', array('class' => 'editicon visibleifjs', 'title' => '')), array('class' => 'editing_maxmark', 'data-action' => 'editmaxmark', 'title' => get_string('editmaxmark', 'quiz'))));
return html_writer::span($output, 'instancemaxmarkcontainer');
}
/**
* Format an entry in an average row.
* @param object $record with fields grade and numaveraged
*/
protected function format_average($record, $question = false)
{
if (is_null($record->grade)) {
$average = '-';
} else {
if ($question) {
$average = quiz_format_question_grade($this->quiz, $record->grade);
} else {
$average = quiz_format_grade($this->quiz, $record->grade);
}
}
if ($this->download) {
return $average;
} else {
if (is_null($record->numaveraged) || $record->numaveraged == 0) {
return html_writer::tag('span', html_writer::tag('span', $average, array('class' => 'average')), array('class' => 'avgcell'));
} else {
return html_writer::tag('span', html_writer::tag('span', $average, array('class' => 'average')) . ' ' . html_writer::tag('span', '(' . $record->numaveraged . ')', array('class' => 'count')), array('class' => 'avgcell'));
}
}
}
/**
* Return the grade obtained on a particular question, if the user is permitted to see it.
* You must previously have called load_question_states to load the state data about this question.
*
* @param integer $questionid question id of a question that belongs to this quiz.
* @return string the formatted grade, to the number of decimal places specified by the quiz.
*/
public function get_question_score($questionid)
{
$options = $this->get_render_options($questionid);
if ($options->scores) {
return quiz_format_question_grade($this->quiz, $this->states[$questionid]->last_graded->grade);
} else {
return '';
}
}
echo json_encode(array('instancemaxmark' =>
quiz_format_question_grade($quiz, $slot->maxmark)));
break;
case 'updatemaxmark':
require_capability('mod/quiz:manage', $modcontext);
$slot = $structure->get_slot_by_id($id);
if ($structure->update_slot_maxmark($slot, $maxmark)) {
// Grade has really changed.
quiz_delete_previews($quiz);
quiz_update_sumgrades($quiz);
quiz_update_all_attempt_sumgrades($quiz);
quiz_update_all_final_grades($quiz);
quiz_update_grades($quiz, 0, true);
}
echo json_encode(array('instancemaxmark' => quiz_format_question_grade($quiz, $maxmark),
'newsummarks' => quiz_format_grade($quiz, $quiz->sumgrades)));
break;
case 'linkslottopage':
require_capability('mod/quiz:manage', $modcontext);
$slots = $structure->update_page_break($quiz, $id, $value);
$json = array();
foreach ($slots as $slot) {
$json[$slot->slot] = array('id' => $slot->id, 'slot' => $slot->slot,
'page' => $slot->page);
}
echo json_encode(array('slots' => $json));
break;
}
break;
