LLMS_Controller_Admin_Quiz_Attempts

Quiz Attempt Forms on the admin panel

Contents

Description Description

Allows admins to grade, leave remarks, and delete quiz attempts.

Top ↑

Source Source

File: includes/controllers/class.llms.controller.admin.quiz.attempts.php

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
class LLMS_Controller_Admin_Quiz_Attempts {
 
    public function __construct() {
 
        add_action( 'admin_init', array( $this, 'maybe_run_actions' ) );
 
    }
 
    /**
     * Run actions on form submission
     *
     * @since 3.16.0
     * @since 3.16.9 Unknown.
     * @since 3.35.0 Sanitize `$_POST` data.
     * @since 4.4.4 Made sure to exit after redirecting on attempt deletion.
     * @since 5.9.0 Stop using deprecated `FILTER_SANITIZE_STRING`.
     *
     * @return void
     */
    public function maybe_run_actions() {
 
        if ( ! llms_verify_nonce( '_llms_quiz_attempt_nonce', 'llms_quiz_attempt_actions', 'POST' ) ) {
            return;
        }
 
        if ( isset( $_POST['llms_quiz_attempt_action'] ) && isset( $_POST['llms_attempt_id'] ) ) {
 
            $action  = llms_filter_input( INPUT_POST, 'llms_quiz_attempt_action' );
            $attempt = new LLMS_Quiz_Attempt( absint( $_POST['llms_attempt_id'] ) );
 
            if ( ! current_user_can( 'edit_post', $attempt->get( 'quiz_id' ) ) ) {
                return;
            }
 
            if ( 'llms_attempt_delete' === $action ) {
                $url = add_query_arg(
                    array(
                        'page'    => 'llms-reporting',
                        'tab'     => 'quizzes',
                        'quiz_id' => $attempt->get( 'quiz_id' ),
                        'stab'    => 'attempts',
                    ),
                    admin_url( 'admin.php' )
                );
                $attempt->delete();
                wp_safe_redirect( $url );
                exit();
            } elseif ( 'llms_attempt_grade' === $action && ( isset( $_POST['remarks'] ) || isset( $_POST['points'] ) ) ) {
                $this->save_grade( $attempt );
            }
        }
 
    }
 
    /**
     * Saves changes to a quiz
     *
     * @since 3.16.0
     * @since 3.30.3 Strip slashes on remarks.
     * @since 3.35.0 Sanitize `$_POST` data.
     * @since 4.4.4 Use strict type comparisons where needed.
     *
     * @param LLMS_Quiz_Attempt $attempt Quiz attempt instance.
     * @return void
     */
    private function save_grade( $attempt ) {
 
        // phpcs:disable WordPress.Security.NonceVerification.Missing -- Nonce verified in `maybe_run_actions()` method.
 
        $remarks = isset( $_POST['remarks'] ) ? llms_filter_input_sanitize_string( INPUT_POST, 'remarks', array( FILTER_REQUIRE_ARRAY ) ) : array();
        $points  = isset( $_POST['points'] ) ? llms_filter_input_sanitize_string( INPUT_POST, 'points', array( FILTER_REQUIRE_ARRAY ) ) : array();
 
        $questions = $attempt->get_questions();
        foreach ( $questions as &$question ) {
 
            if ( isset( $remarks[ $question['id'] ] ) ) {
                $question['remarks'] = wp_kses_post( nl2br( stripslashes( $remarks[ $question['id'] ] ) ) );
            }
 
            if ( isset( $points[ $question['id'] ] ) ) {
                $earned             = absint( $points[ $question['id'] ] );
                $question['earned'] = $earned;
                if ( ( $earned / $question['points'] ) >= 0.5 ) {
                    $question['correct'] = 'yes';
                } else {
                    $question['correct'] = 'no';
                }
            }
        }
 
        // Update the attempt with new questions.
        $attempt->set_questions( $questions, true );
 
        // Attempt to calculate the grade.
        $attempt->calculate_grade()->save();
 
        // If all questions were graded the grade will have been calculated and we can trigger completion actions.
        if ( in_array( $attempt->get( 'status' ), array( 'fail', 'pass' ), true ) ) {
            $attempt->do_completion_actions();
        }
 
        do_action( 'llms_quiz_graded', $attempt->get_student()->get_id(), $attempt->get( 'quiz_id' ), $attempt );
 
        // phpcs:enable
 
    }
 
}

Expand full source code Collapse full source code View on GitHub

Top ↑

Methods Methods

Top ↑

Changelog Changelog

Changelog
Version Description
3.35.0 Sanitize $_POST data.
3.30.3 Fixed an issue causing backlashes to be saved around escaped characters when leaving remarks.
3.16.0 Introduced.

Top ↑

User Contributed Notes User Contributed Notes

You must log in before being able to contribute a note or feedback.