-
Notifications
You must be signed in to change notification settings - Fork 1
/
question.php
executable file
·169 lines (152 loc) · 6.06 KB
/
question.php
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* LTI question definition class.
*
* @package qtype
* @subpackage lti
* @copyright 2019 ETH Zurich
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
require_once($CFG->dirroot . '/question/type/questionbase.php');
/**
* Represents an lti question.
*
* @copyright 2009 The Open University
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class qtype_lti_question extends question_graded_automatically_with_countback {
public $questionid;
public $typeid;
public $toolurl;
public $securetoolurl;
public $instructorchoicesendname;
public $instructorchoicesendemailaddr;
public $instructorchoiceallowroster;
public $instructorchoiceallowsetting;
public $instructorcustomparameters;
public $instructorchoiceacceptgrades;
public $grade;
public $launchcontainer;
public $showtitlelaunch;
public $password;
public $debuglaunch;
public $showdescriptionlaunch;
public $servicesalt;
public $instancecode;
public $icon;
public $secureicon;
public $answers;
public $resourcekey;
public function compute_final_grade($responses, $totaltries) {
$totalstemscore = 0;
foreach ($this->order as $key => $rowid) {
$fieldname = 'answer';
$lastwrongindex = -1;
$finallyright = false;
foreach ($responses as $i => $response) {
if (!array_key_exists($fieldname, $response) || !$response[$fieldname]) {
$lastwrongindex = $i;
$finallyright = false;
} else {
$finallyright = true;
}
}
if ($finallyright) {
$totalstemscore += max(0, 1 - ($lastwrongindex + 1) * $this->penalty);
}
}
return $totalstemscore / count($this->order);
}
public function get_response(question_attempt $qa) {
return $qa->get_last_qt_data();
}
public function get_expected_data() {
return array('answer' => PARAM_RAW, 'instanceid' => PARAM_RAW, 'userid' => PARAM_RAW,
'attemptid' => PARAM_RAW, 'username' => PARAM_RAW, 'linkid' => PARAM_RAW,
'resultid' => PARAM_RAW, 'currentattemptid' => PARAM_RAW);
}
public function is_complete_response(array $response) {
/* LTI question type is always complete (i.e. ready for grading) */
/* always returns true, since from this point, there is no possibility though to the question_attempt_step */
return true;
}
public function is_same_response(array $prevresponse, array $newresponse) {
/* LTI question responses are never the same */
/*
* should return true when there is an answer, and the same answer in the comment field (or answers are empty and/or
* identical
*/
/* Always returns false, since from this point, there is no possibility though to the question_attempt_step */
return false;
}
public function is_gradable_response(array $response) {
return array_key_exists('answer', $response) &&
($response['answer'] || $response['answer'] === '0' || $response['answer'] === 0);
}
/**
*
* @param
* moodle_page the page we are outputting to.
* @return qtype_lti_format_renderer_base the response-format-specific renderer.
*/
public function summarise_response(array $response) {
return null;
}
public function get_correct_response() {
return null;
}
public function get_validation_error(array $response) {
return '';
}
public function check_file_access($qa, $options, $component, $filearea, $args, $forcedownload) {
if ($component == 'question' && $filearea == 'response_attachments') {
// Response attachments visible if the question has them.
return $this->attachments != 0;
} else if ($component == 'question' && $filearea == 'response_answer') {
// Response attachments visible if the question has them.
return $this->responseformat === 'editorfilepicker';
} else if ($component == 'qtype_lti' && $filearea == 'graderinfo') {
return $options->manualcomment && $args[0] == $this->id;
} else {
return parent::check_file_access($qa, $options, $component, $filearea, $args, $forcedownload);
}
}
public function grade_question($question, $answers) {
global $USER, $DB;
$value = 0;
$instanceid = $answers['instanceid'];
$userid = $answers['userid'];
$mattempt = $answers['attemptid'];
$username = $answers['username'];
$linkid = $answers['linkid'];
$result = $answers['resultid'];
$submissiongrade = $DB->get_record('qtype_lti_submission',
array('username' => $username, 'linkid' => $result, 'resultid' => $linkid, 'ltiid' => $instanceid,
'mattempt' => $mattempt
));
if ($submissiongrade) {
$value = $submissiongrade->gradepercent;
}
return $value;
}
public function grade_response(array $response) {
$grade = $this->grade_question($this, $response);
$state = question_state::graded_state_for_fraction($grade);
return array($grade, $state);
}
}