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MDL-51090: mod_quiz grading validation of an essay question

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An invalid format is casted to 0 (if a string) or to some truncated value in other cases (ex: 10..5).
This commit is contained in:
Nelson Moller
2015-09-01 23:09:07 +01:00
committed by Tim Hunt
parent f563d2066d
commit 9f3a76cb07
5 changed files with 128 additions and 6 deletions
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lang/en/question.php
+1
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@@ -195,6 +195,7 @@ $string['lasttry'] = 'Last try';
$string['linkedfiledoesntexist'] = 'Linked file {$a} doesn\'t exist';
$string['makechildof'] = 'Make child of \'{$a}\'';
$string['maketoplevelitem'] = 'Move to top level';
$string['manualgradeinvalidformat'] = 'That is not a valid number.';
$string['matchgrades'] = 'Match grades';
$string['matchgradeserror'] = 'Error if grade not listed';
$string['matchgradesnearest'] = 'Nearest grade if not listed';
mod/quiz/tests/behat/validate_manual_mark_correct_format.feature
+59
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@@ -0,0 +1,59 @@
@mod @mod_quiz
Feature: In order to mannually mark a question I want
As a teacher
I must be able to set the marks I want on the Rapport question page.
Background:
Given the following "users" exist:
| username | firstname | lastname | email |
| teacher1 | Teacher | 1 | teacher1@example.com |
| student1 | Student | 1 | student0@example.com |
And the following "courses" exist:
| fullname | shortname | category |
| Course 1 | C1 | 0 |
And the following "course enrolments" exist:
| user | course | role |
| teacher1 | C1 | editingteacher |
| student1 | C1 | student |
And the following "question categories" exist:
| contextlevel | reference | name |
| Course | C1 | Test questions |
Given the following "questions" exist:
| questioncategory | qtype | name | questiontext | defaultmark |
| Test questions | essay | TF1 | First question | 20 |
And the following "activities" exist:
| activity | name | intro | course | idnumber | grade |
| quiz | Quiz 1 | Quiz 1 description | C1 | quiz1 | 20 |
And quiz "Quiz 1" contains the following questions:
| question | page | requireprevious |
| TF1 | 1 | 0 |
And I log in as "student1"
And I follow "Course 1"
And I follow "Quiz 1"
And I press "Attempt quiz now"
And I follow "Finish attempt ..."
And I press "Submit all and finish"
# Pop-up confirmation
And I click on "Submit all and finish" "button" in the "Confirmation" "dialogue"
And I log out
And I log in as "teacher1"
And I follow "Course 1"
And I follow "Quiz 1"
And I follow "Attempts: 1"
And I follow "Review attempt"
@javascript
Scenario: Validating the marking of an essay question attempt.
When I follow "Make comment or override mark"
And I switch to "commentquestion" window
And I set the field "Mark" to "25"
And I press "Save"
Then I should see "This grade is outside the valid range."
And I set the field "Mark" to "aa"
And I press "Save"
Then I should see "That is not a valid number."
And I set the field "Mark" to "10"
And I press "Save"
Then I should see "Changes saved"
question/behaviour/rendererbase.php
+12 -6
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@@ -68,6 +68,8 @@ abstract class qbehaviour_renderer extends plugin_renderer_base {
return '';
}
public function manual_comment_fields(question_attempt $qa, question_display_options $options) {
$inputname = $qa->get_behaviour_field_name('comment');
$id = $inputname . '_id';
@@ -124,10 +126,15 @@ abstract class qbehaviour_renderer extends plugin_renderer_base {
'name' => $markfield,
'id'=> $markfield
);
if (!is_null($currentmark)) {
if (!is_null($currentmark) && $qa->manual_mark_format_is_ok() ) {
$attributes['value'] = $qa->format_fraction_as_mark(
$currentmark / $maxmark, $options->markdp);
}
// We want that the wrong entry is shown.
else if (!is_null($currentmark)){
$attributes['value'] = $qa->get_submitted_var(
$qa->get_behaviour_field_name('mark'), PARAM_RAW_TRIMMED);
}
$a = new stdClass();
$a->max = $qa->format_max_mark($options->markdp);
$a->mark = html_writer::empty_tag('input', $attributes);
@@ -146,12 +153,10 @@ abstract class qbehaviour_renderer extends plugin_renderer_base {
'value' => $qa->get_max_fraction(),
));
$error = $qa->get_validation_message();
$errorclass = '';
$error = '';
if ($currentmark > $maxmark * $qa->get_max_fraction() || $currentmark < $maxmark * $qa->get_min_fraction()) {
$errorclass = ' error';
$error = html_writer::tag('span', get_string('manualgradeoutofrange', 'question'),
array('class' => 'error')) . html_writer::empty_tag('br');
if ($error !== ''){
$erroclass = 'error';
}
$mark = html_writer::tag('div', html_writer::tag('div',
@@ -167,6 +172,7 @@ abstract class qbehaviour_renderer extends plugin_renderer_base {
array('class' => 'fcontainer clearfix')), array('class' => 'hidden'));
}
public function manual_comment_view(question_attempt $qa, question_display_options $options) {
$output = '';
if ($qa->has_manual_comment()) {
question/engine/lib.php
+20
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@@ -131,6 +131,23 @@ abstract class question_engine {
$dm->set_max_mark_in_attempts($qubaids, $slot, $newmaxmark);
}
/**
* MDL-51090
* Validate that the manual grade submitted for a particular question is a
* float.
*
* @param string prefix as constructed in is_manual_grade_in_range.
* @return bool whether the submitted data is a float.
*/
public static function is_manual_grade_float($prefix) {
$val = optional_param($prefix . '-mark', null, PARAM_RAW_TRIMMED);
$mark = unformat_float($val, true);
if (is_float($mark)) {
return true;
}
return false;
}
/**
* Validate that the manual grade submitted for a particular question is in range.
* @param int $qubaid the question_usage id.
@@ -139,6 +156,9 @@ abstract class question_engine {
*/
public static function is_manual_grade_in_range($qubaid, $slot) {
$prefix = 'q' . $qubaid . ':' . $slot . '_';
if (!self::is_manual_grade_float($prefix)) {
return false;
}
$mark = question_utils::optional_param_mark($prefix . '-mark');
$maxmark = optional_param($prefix . '-maxmark', null, PARAM_FLOAT);
$minfraction = optional_param($prefix . ':minfraction', null, PARAM_FLOAT);
question/engine/questionattempt.php
+36
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@@ -1054,6 +1054,42 @@ class question_attempt {
}
}
public function get_validation_message() {
if (!$this->manual_mark_format_is_ok()) {
$errorclass = ' error';
return html_writer::tag('span', get_string('manualgradeinvalidformat', 'question'),
array('class' => 'error')) . html_writer::empty_tag('br');
}
$currentmark = $this->get_current_manual_mark();
$maxmark = $this->get_max_mark();
if ($currentmark > $maxmark * $this->get_max_fraction() || $currentmark < $maxmark * $this->get_min_fraction()) {
$errorclass = ' error';
return html_writer::tag('span', get_string('manualgradeoutofrange', 'question'),
array('class' => 'error')) . html_writer::empty_tag('br');
}
return '';
}
/**
* Validates that the manual mark parameter is a float.
* @return bool.
*/
public function manual_mark_format_is_ok() {
$val = $this->get_submitted_var($this->get_behaviour_field_name('mark'), PARAM_RAW_TRIMMED);
// If it is empy, we get null (it is always the case on start)
if ($val===null) {
return true;
}
$mark = unformat_float($val, true);
return is_float($mark);
}
/**
* Handle a submitted variable representing uploaded files.
* @param string $name the field name.