| 1 |
<?php |
| 2 |
/** |
| 3 |
* Quiz Model |
| 4 |
* |
| 5 |
* @package Tutor\Models |
| 6 |
* @author Themeum <support@themeum.com> |
| 7 |
* @link https://themeum.com |
| 8 |
* @since 2.0.10 |
| 9 |
*/ |
| 10 |
|
| 11 |
namespace Tutor\Models; |
| 12 |
|
| 13 |
use Tutor\Cache\TutorCache; |
| 14 |
use Tutor\Helpers\QueryHelper; |
| 15 |
use TUTOR\Quiz; |
| 16 |
|
| 17 |
/** |
| 18 |
* Class QuizModel |
| 19 |
* |
| 20 |
* @since 2.0.10 |
| 21 |
*/ |
| 22 |
class QuizModel { |
| 23 |
|
| 24 |
const ATTEMPT_STARTED = 'attempt_started'; |
| 25 |
const ATTEMPT_ENDED = 'attempt_ended'; |
| 26 |
const REVIEW_REQUIRED = 'review_required'; |
| 27 |
const ATTEMPT_TIMEOUT = 'attempt_timeout'; |
| 28 |
|
| 29 |
const RESULT_PASS = 'pass'; |
| 30 |
const RESULT_FAIL = 'fail'; |
| 31 |
const RESULT_PENDING = 'pending'; |
| 32 |
|
| 33 |
/** |
| 34 |
* Get quiz table name |
| 35 |
* |
| 36 |
* @since 2.1.0 |
| 37 |
* |
| 38 |
* @return string |
| 39 |
*/ |
| 40 |
public function get_table(): string { |
| 41 |
global $wpdb; |
| 42 |
return $wpdb->prefix . 'tutor_quiz_attempts'; |
| 43 |
} |
| 44 |
|
| 45 |
/** |
| 46 |
* Get manual review types. |
| 47 |
* |
| 48 |
* @since 3.8.0 |
| 49 |
* |
| 50 |
* @return array |
| 51 |
*/ |
| 52 |
public static function get_manual_review_types() { |
| 53 |
return array( 'open_ended', 'short_answer' ); |
| 54 |
} |
| 55 |
|
| 56 |
/** |
| 57 |
* Get total number of quiz |
| 58 |
* |
| 59 |
* @since 2.0.2 |
| 60 |
* |
| 61 |
* @since 3.7.1 Course ids param added |
| 62 |
* |
| 63 |
* @param array $course_ids Array of course ids. |
| 64 |
* |
| 65 |
* @return int |
| 66 |
*/ |
| 67 |
public static function get_total_quiz( array $course_ids = array() ) { |
| 68 |
global $wpdb; |
| 69 |
|
| 70 |
$course_in_clause = ''; |
| 71 |
if ( count( $course_ids ) ) { |
| 72 |
$prepare_ids = QueryHelper::prepare_in_clause( $course_ids ); |
| 73 |
$course_in_clause = "AND course.ID IN ({$prepare_ids})"; |
| 74 |
} |
| 75 |
|
| 76 |
$sql = "SELECT COUNT(DISTINCT quiz.ID) |
| 77 |
FROM {$wpdb->posts} quiz |
| 78 |
INNER JOIN {$wpdb->posts} topic ON quiz.post_parent=topic.ID |
| 79 |
INNER JOIN {$wpdb->posts} course ON topic.post_parent=course.ID |
| 80 |
WHERE 1 = 1 |
| 81 |
{$course_in_clause} |
| 82 |
AND course.post_type=%s |
| 83 |
AND course.post_status = 'publish' |
| 84 |
AND quiz.post_type='tutor_quiz'"; |
| 85 |
|
| 86 |
//phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared |
| 87 |
return $wpdb->get_var( $wpdb->prepare( $sql, tutor()->course_post_type ) ); |
| 88 |
} |
| 89 |
|
| 90 |
/** |
| 91 |
* Get Attempt row by grade method settings |
| 92 |
* |
| 93 |
* @since 1.4.2 |
| 94 |
* |
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* @param int $quiz_id quiz id. |
| 96 |
* @param int $user_id user id. |
| 97 |
* |
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* @return array|bool|null|object |
| 99 |
*/ |
| 100 |
public function get_quiz_attempt( $quiz_id = 0, $user_id = 0 ) { |
| 101 |
global $wpdb; |
| 102 |
|
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$quiz_id = tutils()->get_post_id( $quiz_id ); |
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$user_id = tutils()->get_user_id( $user_id ); |
| 105 |
|
| 106 |
$attempt = false; |
| 107 |
|
| 108 |
$quiz_grade_method = get_tutor_option( 'quiz_grade_method', 'highest_grade' ); |
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$from_string = "FROM {$wpdb->tutor_quiz_attempts} WHERE quiz_id = %d AND user_id = %d AND attempt_status != 'attempt_started' "; |
| 110 |
|
| 111 |
//phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared |
| 112 |
if ( 'highest_grade' === $quiz_grade_method ) { |
| 113 |
$attempt = $wpdb->get_row( $wpdb->prepare( "SELECT * {$from_string} ORDER BY earned_marks DESC LIMIT 1; ", $quiz_id, $user_id ) ); |
| 114 |
} elseif ( 'average_grade' === $quiz_grade_method ) { |
| 115 |
|
| 116 |
$attempt = $wpdb->get_row( |
| 117 |
$wpdb->prepare( |
| 118 |
"SELECT {$wpdb->tutor_quiz_attempts}.*, |
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COUNT(attempt_id) AS attempt_count, |
| 120 |
AVG(total_marks) AS total_marks, |
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AVG(earned_marks) AS earned_marks {$from_string} |
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", |
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$quiz_id, |
| 124 |
$user_id |
| 125 |
) |
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); |
| 127 |
} elseif ( 'first_attempt' === $quiz_grade_method ) { |
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|
| 129 |
$attempt = $wpdb->get_row( $wpdb->prepare( "SELECT * {$from_string} ORDER BY attempt_id ASC LIMIT 1; ", $quiz_id, $user_id ) ); |
| 130 |
} elseif ( 'last_attempt' === $quiz_grade_method ) { |
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|
| 132 |
$attempt = $wpdb->get_row( $wpdb->prepare( "SELECT * {$from_string} ORDER BY attempt_id DESC LIMIT 1; ", $quiz_id, $user_id ) ); |
| 133 |
} |
| 134 |
//phpcs:enable WordPress.DB.PreparedSQL.InterpolatedNotPrepared |
| 135 |
|
| 136 |
return $attempt; |
| 137 |
} |
| 138 |
|
| 139 |
/** |
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* Get all of the attempts by an user of a quiz |
| 141 |
* |
| 142 |
* @since 1.0.0 |
| 143 |
* |
| 144 |
* @param int $quiz_id quiz ID. |
| 145 |
* @param int $user_id user ID. |
| 146 |
* |
| 147 |
* @return array|bool|null|object |
| 148 |
*/ |
| 149 |
public function quiz_attempts( $quiz_id = 0, $user_id = 0 ) { |
| 150 |
global $wpdb; |
| 151 |
|
| 152 |
$quiz_id = tutor_utils()->get_post_id( $quiz_id ); |
| 153 |
$user_id = tutor_utils()->get_user_id( $user_id ); |
| 154 |
|
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$cache_key = "tutor_quiz_attempts_for_{$user_id}_{$quiz_id}"; |
| 156 |
$attempts = TutorCache::get( $cache_key ); |
| 157 |
|
| 158 |
if ( false === $attempts ) { |
| 159 |
$attempts = $wpdb->get_results( |
| 160 |
$wpdb->prepare( |
| 161 |
"SELECT * |
| 162 |
FROM {$wpdb->prefix}tutor_quiz_attempts |
| 163 |
WHERE quiz_id = %d |
| 164 |
AND user_id = %d |
| 165 |
ORDER BY attempt_id DESC |
| 166 |
", |
| 167 |
$quiz_id, |
| 168 |
$user_id |
| 169 |
) |
| 170 |
); |
| 171 |
TutorCache::set( $cache_key, $attempts ); |
| 172 |
} |
| 173 |
|
| 174 |
if ( is_array( $attempts ) && count( $attempts ) ) { |
| 175 |
return $attempts; |
| 176 |
} |
| 177 |
|
| 178 |
return false; |
| 179 |
} |
| 180 |
|
| 181 |
/** |
| 182 |
* Get Quiz question by question id |
| 183 |
* |
| 184 |
* @since 1.0.0 |
| 185 |
* |
| 186 |
* @param int $question_id question ID. |
| 187 |
* |
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* @return array|bool|object|void|null |
| 189 |
*/ |
| 190 |
public static function get_quiz_question_by_id( $question_id = 0 ) { |
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global $wpdb; |
| 192 |
|
| 193 |
if ( $question_id ) { |
| 194 |
$question = $wpdb->get_row( |
| 195 |
$wpdb->prepare( |
| 196 |
"SELECT * |
| 197 |
FROM {$wpdb->prefix}tutor_quiz_questions |
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WHERE question_id = %d |
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LIMIT 0, 1; |
| 200 |
", |
| 201 |
$question_id |
| 202 |
) |
| 203 |
); |
| 204 |
|
| 205 |
return $question; |
| 206 |
} |
| 207 |
|
| 208 |
return false; |
| 209 |
} |
| 210 |
|
| 211 |
/** |
| 212 |
* Get all ended attempts by an user of a quiz |
| 213 |
* |
| 214 |
* @since 1.4.1 |
| 215 |
* |
| 216 |
* @param int $quiz_id quiz ID. |
| 217 |
* @param int $user_id user ID. |
| 218 |
* |
| 219 |
* @return array|bool|null|object |
| 220 |
*/ |
| 221 |
public function quiz_ended_attempts( $quiz_id = 0, $user_id = 0 ) { |
| 222 |
global $wpdb; |
| 223 |
|
| 224 |
$quiz_id = tutor_utils()->get_post_id( $quiz_id ); |
| 225 |
$user_id = tutor_utils()->get_user_id( $user_id ); |
| 226 |
|
| 227 |
$attempts = $wpdb->get_results( |
| 228 |
$wpdb->prepare( |
| 229 |
"SELECT * |
| 230 |
FROM {$wpdb->prefix}tutor_quiz_attempts |
| 231 |
WHERE quiz_id = %d |
| 232 |
AND user_id = %d |
| 233 |
AND attempt_status != %s |
| 234 |
", |
| 235 |
$quiz_id, |
| 236 |
$user_id, |
| 237 |
'attempt_started' |
| 238 |
) |
| 239 |
); |
| 240 |
|
| 241 |
if ( is_array( $attempts ) && count( $attempts ) ) { |
| 242 |
return $attempts; |
| 243 |
} |
| 244 |
|
| 245 |
return false; |
| 246 |
} |
| 247 |
|
| 248 |
/** |
| 249 |
* Get the next question order ID |
| 250 |
* |
| 251 |
* @since 1.0.0 |
| 252 |
* |
| 253 |
* @param integer $quiz_id quiz ID. |
| 254 |
* |
| 255 |
* @return int |
| 256 |
*/ |
| 257 |
public static function quiz_next_question_order_id( $quiz_id ) { |
| 258 |
global $wpdb; |
| 259 |
|
| 260 |
$last_order = (int) $wpdb->get_var( |
| 261 |
$wpdb->prepare( |
| 262 |
"SELECT MAX(question_order) |
| 263 |
FROM {$wpdb->prefix}tutor_quiz_questions |
| 264 |
WHERE quiz_id = %d ; |
| 265 |
", |
| 266 |
$quiz_id |
| 267 |
) |
| 268 |
); |
| 269 |
|
| 270 |
return $last_order + 1; |
| 271 |
} |
| 272 |
|
| 273 |
/** |
| 274 |
* Get next quiz question ID |
| 275 |
* |
| 276 |
* @since 1.0.0 |
| 277 |
* |
| 278 |
* @return int |
| 279 |
*/ |
| 280 |
public static function quiz_next_question_id() { |
| 281 |
global $wpdb; |
| 282 |
|
| 283 |
$last_order = (int) $wpdb->get_var( "SELECT MAX(question_id) FROM {$wpdb->prefix}tutor_quiz_questions;" ); |
| 284 |
return $last_order + 1; |
| 285 |
} |
| 286 |
|
| 287 |
/** |
| 288 |
* Total number of quiz attempts |
| 289 |
* |
| 290 |
* @since 1.0.0 |
| 291 |
* |
| 292 |
* @param string $search_term search term. |
| 293 |
* @param integer $course_id course ID. |
| 294 |
* @param string $tab tab. |
| 295 |
* @param string $date_filter date filter. |
| 296 |
* |
| 297 |
* @return int |
| 298 |
*/ |
| 299 |
public static function get_total_quiz_attempts( $search_term = '', int $course_id = 0, string $tab = '', $date_filter = '' ) { |
| 300 |
global $wpdb; |
| 301 |
|
| 302 |
// Prepare search term. |
| 303 |
$search_term = empty( $search_term ) ? '' : '%' . $wpdb->esc_like( $search_term ) . '%'; |
| 304 |
|
| 305 |
// Prepare course filter. |
| 306 |
$course_filter = $course_id ? $wpdb->prepare( ' AND quiz_attempts.course_id = %d', $course_id ) : ''; |
| 307 |
|
| 308 |
// Prepare date filter. |
| 309 |
$date_filter = empty( $date_filter ) ? '' : tutor_get_formated_date( 'Y-m-d', $date_filter ); |
| 310 |
$date_filter = empty( $date_filter ) ? '' : $wpdb->prepare( ' AND DATE(quiz_attempts.attempt_started_at) = %s ', $date_filter ); |
| 311 |
|
| 312 |
// Prepare user join and clause. |
| 313 |
$user_join = ''; |
| 314 |
$user_clause = ''; |
| 315 |
if ( '' !== $search_term ) { |
| 316 |
$user_join = "INNER JOIN {$wpdb->users} ON quiz_attempts.user_id = {$wpdb->users}.ID"; |
| 317 |
$user_clause = $wpdb->prepare( |
| 318 |
" AND ( {$wpdb->users}.user_email LIKE %s OR {$wpdb->users}.display_name LIKE %s )", |
| 319 |
$search_term, |
| 320 |
$search_term |
| 321 |
); |
| 322 |
} |
| 323 |
|
| 324 |
// Prepare tab filter. |
| 325 |
$tab_clause = ''; |
| 326 |
if ( in_array( $tab, array( self::RESULT_PASS, self::RESULT_FAIL, self::RESULT_PENDING ), true ) ) { |
| 327 |
$tab_clause = $wpdb->prepare( ' AND quiz_attempts.result = %s', $tab ); |
| 328 |
} |
| 329 |
|
| 330 |
//phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared |
| 331 |
$count = $wpdb->get_var( |
| 332 |
$wpdb->prepare( |
| 333 |
"SELECT COUNT(DISTINCT quiz_attempts.attempt_id) AS total |
| 334 |
FROM {$wpdb->prefix}tutor_quiz_attempts quiz_attempts |
| 335 |
INNER JOIN {$wpdb->posts} quiz ON quiz_attempts.quiz_id = quiz.ID |
| 336 |
INNER JOIN {$wpdb->posts} AS course ON course.ID = quiz_attempts.course_id |
| 337 |
{$user_join} |
| 338 |
WHERE attempt_status != %s AND quiz_attempts.result IS NOT NULL |
| 339 |
{$user_clause} |
| 340 |
{$course_filter} |
| 341 |
{$tab_clause} |
| 342 |
{$date_filter}", |
| 343 |
'attempt_started' |
| 344 |
) |
| 345 |
); |
| 346 |
//phpcs:enable WordPress.DB.PreparedSQL.InterpolatedNotPrepared |
| 347 |
|
| 348 |
return (int) $count; |
| 349 |
} |
| 350 |
|
| 351 |
/** |
| 352 |
* Get the all quiz attempts |
| 353 |
* |
| 354 |
* @since 1.0.0 |
| 355 |
* @since 1.9.5 sorting params added. |
| 356 |
* @since 3.8.0 refactor and query optimize. |
| 357 |
* |
| 358 |
* @param integer $start start. |
| 359 |
* @param integer $limit limit. |
| 360 |
* @param string $search_filter search filter. |
| 361 |
* @param string $course_filter course filter. |
| 362 |
* @param string $date_filter date filter. |
| 363 |
* @param string $order_filter order filter. |
| 364 |
* @param mixed $result_state result state. |
| 365 |
* @param boolean $count_only count only or not. |
| 366 |
* @param boolean $instructor_id_check need instructor id check or not. |
| 367 |
* |
| 368 |
* @return mixed |
| 369 |
*/ |
| 370 |
public static function get_quiz_attempts( $start = 0, $limit = 10, $search_filter = '', $course_filter = array(), $date_filter = '', $order_filter = 'DESC', $result_state = null, $count_only = false, $instructor_id_check = false ) { |
| 371 |
global $wpdb; |
| 372 |
|
| 373 |
$start = (int) $start; |
| 374 |
$limit = (int) $limit; |
| 375 |
$search_filter = sanitize_text_field( $search_filter ); |
| 376 |
$course_filter = sanitize_text_field( $course_filter ); |
| 377 |
$date_filter = sanitize_text_field( $date_filter ); |
| 378 |
$order_filter = sanitize_sql_orderby( $order_filter ); |
| 379 |
|
| 380 |
$search_term_raw = $search_filter; |
| 381 |
$search_filter = '%' . $wpdb->esc_like( $search_filter ) . '%'; |
| 382 |
|
| 383 |
// Filter by course. |
| 384 |
if ( '' !== $course_filter ) { |
| 385 |
if ( ! is_array( $course_filter ) ) { |
| 386 |
$course_filter = array( $course_filter ); |
| 387 |
} |
| 388 |
|
| 389 |
$course_ids = QueryHelper::prepare_in_clause( array_map( 'intval', $course_filter ) ); |
| 390 |
$course_filter = " AND quiz_attempts.course_id IN ($course_ids) "; |
| 391 |
} |
| 392 |
|
| 393 |
// Filter by date. |
| 394 |
$date_filter = '' !== $date_filter ? tutor_get_formated_date( 'Y-m-d', $date_filter ) : ''; |
| 395 |
$date_filter = '' !== $date_filter ? $wpdb->prepare( ' AND DATE(quiz_attempts.attempt_started_at) = %s ', $date_filter ) : ''; |
| 396 |
|
| 397 |
$result_clause = ''; |
| 398 |
$select_columns = $count_only ? 'COUNT(DISTINCT quiz_attempts.attempt_id)' : 'DISTINCT quiz_attempts.*, quiz.post_title, users.user_email, users.user_login, users.display_name'; |
| 399 |
$limit_offset = $count_only ? '' : $wpdb->prepare( ' LIMIT %d OFFSET %d', $limit, $start ); |
| 400 |
|
| 401 |
// Get attempts by instructor ID. |
| 402 |
$instructor_clause = ''; |
| 403 |
if ( $instructor_id_check ) { |
| 404 |
$current_user_id = get_current_user_id(); |
| 405 |
$instructor_id = tutor_utils()->has_user_role( 'administrator', $current_user_id ) ? null : $current_user_id; |
| 406 |
|
| 407 |
if ( $instructor_id ) { |
| 408 |
$instructor_clause = " INNER JOIN {$wpdb->usermeta} AS instructor_meta ON course.ID = instructor_meta.meta_value AND (instructor_meta.meta_key='_tutor_instructor_course_id' AND instructor_meta.user_id=$instructor_id) "; |
| 409 |
} |
| 410 |
} |
| 411 |
|
| 412 |
$result_clause = ''; |
| 413 |
if ( in_array( $result_state, array( self::RESULT_PASS, self::RESULT_FAIL, self::RESULT_PENDING ), true ) ) { |
| 414 |
$result_clause = $wpdb->prepare( ' AND quiz_attempts.result = %s', $result_state ); |
| 415 |
} |
| 416 |
|
| 417 |
//phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared |
| 418 |
$query = $wpdb->prepare( |
| 419 |
"SELECT {$select_columns} |
| 420 |
FROM {$wpdb->prefix}tutor_quiz_attempts quiz_attempts |
| 421 |
INNER JOIN {$wpdb->posts} quiz ON quiz_attempts.quiz_id = quiz.ID |
| 422 |
INNER JOIN {$wpdb->users} AS users ON quiz_attempts.user_id = users.ID |
| 423 |
INNER JOIN {$wpdb->posts} AS course ON course.ID = quiz_attempts.course_id |
| 424 |
{$instructor_clause} |
| 425 |
WHERE quiz_attempts.attempt_ended_at IS NOT NULL |
| 426 |
AND ( |
| 427 |
users.user_email = %s |
| 428 |
OR users.display_name LIKE %s |
| 429 |
OR quiz.post_title LIKE %s |
| 430 |
OR course.post_title LIKE %s |
| 431 |
) |
| 432 |
AND quiz_attempts.attempt_ended_at IS NOT NULL |
| 433 |
{$result_clause} |
| 434 |
{$course_filter} |
| 435 |
{$date_filter} |
| 436 |
ORDER BY quiz_attempts.attempt_ended_at {$order_filter} {$limit_offset}", |
| 437 |
$search_term_raw, |
| 438 |
$search_filter, |
| 439 |
$search_filter, |
| 440 |
$search_filter |
| 441 |
); |
| 442 |
//phpcs:enable WordPress.DB.PreparedSQL.InterpolatedNotPrepared |
| 443 |
|
| 444 |
//phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared |
| 445 |
return $count_only ? $wpdb->get_var( $query ) : $wpdb->get_results( $query ); |
| 446 |
} |
| 447 |
|
| 448 |
/** |
| 449 |
* Delete quizattempt for user |
| 450 |
* |
| 451 |
* @since 1.9.5 |
| 452 |
* |
| 453 |
* @param mixed $attempt_ids attempt ids. |
| 454 |
* |
| 455 |
* @return void |
| 456 |
*/ |
| 457 |
public static function delete_quiz_attempt( $attempt_ids ) { |
| 458 |
global $wpdb; |
| 459 |
|
| 460 |
// Singlular to array. |
| 461 |
! is_array( $attempt_ids ) ? $attempt_ids = array( $attempt_ids ) : 0; |
| 462 |
|
| 463 |
if ( count( $attempt_ids ) ) { |
| 464 |
$attempt_ids = implode( ',', $attempt_ids ); |
| 465 |
|
| 466 |
//phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared |
| 467 |
// Deleting attempt (comment), child attempt and attempt meta (comment meta). |
| 468 |
$wpdb->query( "DELETE FROM {$wpdb->prefix}tutor_quiz_attempts WHERE attempt_id IN($attempt_ids)" ); |
| 469 |
$wpdb->query( "DELETE FROM {$wpdb->prefix}tutor_quiz_attempt_answers WHERE quiz_attempt_id IN($attempt_ids)" ); |
| 470 |
//phpcs:enable WordPress.DB.PreparedSQL.InterpolatedNotPrepared |
| 471 |
|
| 472 |
do_action( 'tutor_quiz/attempt_deleted', $attempt_ids ); |
| 473 |
} |
| 474 |
} |
| 475 |
|
| 476 |
/** |
| 477 |
* Sorting params added on quiz attempt |
| 478 |
* |
| 479 |
* @since 1.9.5 |
| 480 |
* |
| 481 |
* @param integer $start start. |
| 482 |
* @param integer $limit limit. |
| 483 |
* @param array $course_ids course ids. |
| 484 |
* @param string $search_filter search filter. |
| 485 |
* @param string $course_filter course filter. |
| 486 |
* @param string $date_filter date filter. |
| 487 |
* @param string $order_filter order filter. |
| 488 |
* @param mixed $user_id user id. |
| 489 |
* @param boolean $count_only is only count or not. |
| 490 |
* @param boolean $all_attempt need all atempt or not. |
| 491 |
* |
| 492 |
* @return mixed |
| 493 |
*/ |
| 494 |
public static function get_quiz_attempts_by_course_ids( $start = 0, $limit = 10, $course_ids = array(), $search_filter = '', $course_filter = '', $date_filter = '', $order_filter = '', $user_id = null, $count_only = false, $all_attempt = false ) { |
| 495 |
global $wpdb; |
| 496 |
$search_filter = sanitize_text_field( $search_filter ); |
| 497 |
$course_filter = (int) sanitize_text_field( $course_filter ); |
| 498 |
$date_filter = sanitize_text_field( $date_filter ); |
| 499 |
$order_filter = sanitize_sql_orderby( $order_filter ); |
| 500 |
|
| 501 |
$course_ids = array_map( |
| 502 |
function ( $id ) { |
| 503 |
return "'" . esc_sql( $id ) . "'"; |
| 504 |
}, |
| 505 |
$course_ids |
| 506 |
); |
| 507 |
|
| 508 |
$course_ids_in = count( $course_ids ) ? ' AND quiz_attempts.course_id IN (' . implode( ', ', $course_ids ) . ') ' : ''; |
| 509 |
|
| 510 |
$search_filter = $search_filter ? '%' . $wpdb->esc_like( $search_filter ) . '%' : ''; |
| 511 |
$search_term_raw = $search_filter; |
| 512 |
$search_filter = $search_filter ? "AND ( users.user_email = '{$search_term_raw}' OR users.display_name LIKE {$search_filter} OR quiz.post_title LIKE {$search_filter} OR course.post_title LIKE {$search_filter} )" : ''; |
| 513 |
|
| 514 |
$course_filter = 0 !== $course_filter ? " AND quiz_attempts.course_id = $course_filter " : ''; |
| 515 |
$date_filter = '' != $date_filter ? tutor_get_formated_date( 'Y-m-d', $date_filter ) : ''; |
| 516 |
$date_filter = '' != $date_filter ? " AND DATE(quiz_attempts.attempt_started_at) = '$date_filter' " : ''; |
| 517 |
$user_filter = $user_id ? ' AND user_id=\'' . esc_sql( $user_id ) . '\' ' : ''; |
| 518 |
|
| 519 |
$limit_offset = $count_only ? '' : " LIMIT {$start}, {$limit} "; |
| 520 |
$select_col = $count_only ? ' COUNT(DISTINCT quiz_attempts.attempt_id) ' : ' quiz_attempts.*, users.*, quiz.* '; |
| 521 |
|
| 522 |
$attempt_type = $all_attempt ? '' : " AND quiz_attempts.attempt_status != 'attempt_started' "; |
| 523 |
|
| 524 |
$query = "SELECT {$select_col} |
| 525 |
FROM {$wpdb->prefix}tutor_quiz_attempts AS quiz_attempts |
| 526 |
INNER JOIN {$wpdb->posts} AS quiz |
| 527 |
ON quiz_attempts.quiz_id = quiz.ID |
| 528 |
INNER JOIN {$wpdb->users} AS users |
| 529 |
ON quiz_attempts.user_id = users.ID |
| 530 |
INNER JOIN {$wpdb->posts} AS course |
| 531 |
ON course.ID = quiz_attempts.course_id |
| 532 |
WHERE 1=1 |
| 533 |
{$attempt_type} |
| 534 |
{$course_ids_in} |
| 535 |
{$search_filter} |
| 536 |
{$course_filter} |
| 537 |
{$date_filter} |
| 538 |
{$user_filter} |
| 539 |
ORDER BY quiz_attempts.attempt_id {$order_filter} {$limit_offset};"; |
| 540 |
|
| 541 |
//phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared |
| 542 |
return $count_only ? $wpdb->get_var( $query ) : $wpdb->get_results( $query ); |
| 543 |
} |
| 544 |
|
| 545 |
/** |
| 546 |
* Get answers list by quiz question |
| 547 |
* |
| 548 |
* @since 1.0.0 |
| 549 |
* |
| 550 |
* @param int $question_id question ID. |
| 551 |
* @param bool $rand rand. |
| 552 |
* |
| 553 |
* @return array|bool|null|object |
| 554 |
*/ |
| 555 |
public static function get_answers_by_quiz_question( $question_id, $rand = false ) { |
| 556 |
global $wpdb; |
| 557 |
|
| 558 |
$question = $wpdb->get_row( |
| 559 |
$wpdb->prepare( |
| 560 |
"SELECT * |
| 561 |
FROM {$wpdb->prefix}tutor_quiz_questions |
| 562 |
WHERE question_id = %d; |
| 563 |
", |
| 564 |
$question_id |
| 565 |
) |
| 566 |
); |
| 567 |
|
| 568 |
if ( ! $question ) { |
| 569 |
return false; |
| 570 |
} |
| 571 |
|
| 572 |
$order = ' answer_order ASC '; |
| 573 |
|
| 574 |
if ( $rand ) { |
| 575 |
$order = ' RAND() '; |
| 576 |
} |
| 577 |
|
| 578 |
//phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared |
| 579 |
$answers = $wpdb->get_results( |
| 580 |
$wpdb->prepare( |
| 581 |
"SELECT * |
| 582 |
FROM {$wpdb->prefix}tutor_quiz_question_answers |
| 583 |
WHERE belongs_question_id = %d |
| 584 |
AND belongs_question_type = %s |
| 585 |
ORDER BY {$order} |
| 586 |
", |
| 587 |
$question_id, |
| 588 |
$question->question_type |
| 589 |
) |
| 590 |
); |
| 591 |
//phpcs:enable WordPress.DB.PreparedSQL.InterpolatedNotPrepared |
| 592 |
|
| 593 |
return $answers; |
| 594 |
} |
| 595 |
|
| 596 |
/** |
| 597 |
* Get quiz answers by attempt id |
| 598 |
* |
| 599 |
* @since 1.0.0 |
| 600 |
* |
| 601 |
* @param mixed $attempt_id attempt ID. |
| 602 |
* @param bool $add_index need index or not. |
| 603 |
* |
| 604 |
* @return array|null|object |
| 605 |
*/ |
| 606 |
public static function get_quiz_answers_by_attempt_id( $attempt_id, $add_index = false ) { |
| 607 |
global $wpdb; |
| 608 |
|
| 609 |
$ids = is_array( $attempt_id ) ? $attempt_id : array( $attempt_id ); |
| 610 |
$ids_in = implode( ',', $ids ); |
| 611 |
|
| 612 |
if ( empty( $ids_in ) ) { |
| 613 |
// Prevent empty. |
| 614 |
return array(); |
| 615 |
} |
| 616 |
|
| 617 |
//phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared |
| 618 |
$results = $wpdb->get_results( |
| 619 |
"SELECT answers.*, |
| 620 |
question.* |
| 621 |
FROM {$wpdb->prefix}tutor_quiz_attempt_answers answers |
| 622 |
LEFT JOIN {$wpdb->prefix}tutor_quiz_questions question |
| 623 |
ON answers.question_id = question.question_id |
| 624 |
WHERE answers.quiz_attempt_id IN ({$ids_in}) |
| 625 |
ORDER BY attempt_answer_id ASC;" |
| 626 |
); |
| 627 |
//phpcs:enable WordPress.DB.PreparedSQL.InterpolatedNotPrepared |
| 628 |
|
| 629 |
if ( $add_index ) { |
| 630 |
$new_array = array(); |
| 631 |
|
| 632 |
foreach ( $results as $result ) { |
| 633 |
! isset( $new_array[ $result->quiz_attempt_id ] ) ? $new_array[ $result->quiz_attempt_id ] = array() : 0; |
| 634 |
$new_array[ $result->quiz_attempt_id ][] = $result; |
| 635 |
} |
| 636 |
|
| 637 |
return $new_array; |
| 638 |
} |
| 639 |
|
| 640 |
return $results; |
| 641 |
} |
| 642 |
|
| 643 |
/** |
| 644 |
* Get single answer by answer_id |
| 645 |
* |
| 646 |
* @since 1.0.0 |
| 647 |
* |
| 648 |
* @param array|init $answer_id answer id. |
| 649 |
* |
| 650 |
* @return array|null|object |
| 651 |
*/ |
| 652 |
public static function get_answer_by_id( $answer_id ) { |
| 653 |
global $wpdb; |
| 654 |
|
| 655 |
! is_array( $answer_id ) ? $answer_id = array( $answer_id ) : 0; |
| 656 |
|
| 657 |
$answer_id = array_map( |
| 658 |
function ( $id ) { |
| 659 |
return "'" . esc_sql( $id ) . "'"; |
| 660 |
}, |
| 661 |
$answer_id |
| 662 |
); |
| 663 |
|
| 664 |
$in_ids_string = implode( ', ', $answer_id ); |
| 665 |
|
| 666 |
//phpcs:disable WordPress.DB.PreparedSQL.NotPrepared |
| 667 |
$answer = $wpdb->get_results( |
| 668 |
$wpdb->prepare( |
| 669 |
"SELECT answer.*, |
| 670 |
question.question_title, |
| 671 |
question.question_type |
| 672 |
FROM {$wpdb->prefix}tutor_quiz_question_answers answer |
| 673 |
LEFT JOIN {$wpdb->prefix}tutor_quiz_questions question |
| 674 |
ON answer.belongs_question_id = question.question_id |
| 675 |
WHERE answer.answer_id IN (" . $in_ids_string . ') |
| 676 |
AND 1 = %d; |
| 677 |
', |
| 678 |
1 |
| 679 |
) |
| 680 |
); |
| 681 |
//phpcs:enable WordPress.DB.PreparedSQL.NotPrepared |
| 682 |
|
| 683 |
return $answer; |
| 684 |
} |
| 685 |
|
| 686 |
/** |
| 687 |
* Get quiz attempt timing |
| 688 |
* |
| 689 |
* @since 1.0.0 |
| 690 |
* |
| 691 |
* @param mixed $attempt_data attempt data. |
| 692 |
* @return array |
| 693 |
*/ |
| 694 |
public static function get_quiz_attempt_timing( $attempt_data ) { |
| 695 |
$attempt_duration = ''; |
| 696 |
$attempt_duration_taken = ''; |
| 697 |
$attempt_info = @unserialize( $attempt_data->attempt_info ); |
| 698 |
if ( is_array( $attempt_info ) ) { |
| 699 |
// Allowed duration. |
| 700 |
if ( isset( $attempt_info['time_limit'] ) ) { |
| 701 |
//phpcs:ignore WordPress.WP.I18n.NonSingularStringLiteralText |
| 702 |
$time_type = __( ucwords( tutor_utils()->array_get( 'time_limit.time_type', $attempt_info, 'minutes' ) ), 'tutor' ); |
| 703 |
$time_value = tutor_utils()->array_get( 'time_limit.time_value', $attempt_info, 0 ); |
| 704 |
$attempt_duration = $time_value . ' ' . $time_type; |
| 705 |
} |
| 706 |
|
| 707 |
// Taken duration. |
| 708 |
$seconds = strtotime( $attempt_data->attempt_ended_at ) - strtotime( $attempt_data->attempt_started_at ); |
| 709 |
$attempt_duration_taken = tutor_utils()->seconds_to_time( $seconds ); |
| 710 |
} |
| 711 |
|
| 712 |
return compact( 'attempt_duration', 'attempt_duration_taken' ); |
| 713 |
} |
| 714 |
|
| 715 |
/** |
| 716 |
* Check student is passed in a quiz or not. |
| 717 |
* Quiz retry mode: student required at least one quiz passed in attempts |
| 718 |
* |
| 719 |
* @since 2.1.0 |
| 720 |
* |
| 721 |
* @param int $quiz_id quiz ID. |
| 722 |
* @param int $user_id user ID. |
| 723 |
* |
| 724 |
* @return boolean |
| 725 |
*/ |
| 726 |
public static function is_quiz_passed( $quiz_id, $user_id = 0 ) { |
| 727 |
global $wpdb; |
| 728 |
|
| 729 |
$user_id = tutor_utils()->get_user_id( $user_id ); |
| 730 |
$attempts = $wpdb->get_results( $wpdb->prepare( "SELECT * FROM {$wpdb->prefix}tutor_quiz_attempts WHERE user_id=%d AND quiz_id=%d", $user_id, $quiz_id ) ); |
| 731 |
$required_percentage = tutor_utils()->get_quiz_option( $quiz_id, 'passing_grade', 0 ); |
| 732 |
|
| 733 |
foreach ( $attempts as $attempt ) { |
| 734 |
$earned_percentage = self::calculate_attempt_earned_percentage( $attempt ); |
| 735 |
if ( $earned_percentage >= $required_percentage ) { |
| 736 |
return true; |
| 737 |
} |
| 738 |
} |
| 739 |
|
| 740 |
return false; |
| 741 |
} |
| 742 |
|
| 743 |
/** |
| 744 |
* Get all question type for a quiz |
| 745 |
* |
| 746 |
* @since 2.1.0 |
| 747 |
* |
| 748 |
* @param integer $quiz_id quiz ID. |
| 749 |
* |
| 750 |
* @return array |
| 751 |
*/ |
| 752 |
public static function get_quiz_question_types( int $quiz_id ) { |
| 753 |
global $wpdb; |
| 754 |
$types = $wpdb->get_col( |
| 755 |
$wpdb->prepare( "SELECT DISTINCT question_type FROM {$wpdb->prefix}tutor_quiz_questions WHERE quiz_id=%d", $quiz_id ) |
| 756 |
); |
| 757 |
|
| 758 |
return $types; |
| 759 |
} |
| 760 |
|
| 761 |
/** |
| 762 |
* Check a quiz attempt need manual review or not |
| 763 |
* |
| 764 |
* @since 2.1.0 |
| 765 |
* |
| 766 |
* @param int $quiz_id quiz ID. |
| 767 |
* |
| 768 |
* @return boolean |
| 769 |
*/ |
| 770 |
public static function is_manual_review_required( $quiz_id ) { |
| 771 |
$required = false; |
| 772 |
$review_question_types = self::get_manual_review_types(); |
| 773 |
$question_types = self::get_quiz_question_types( $quiz_id ); |
| 774 |
|
| 775 |
foreach ( $review_question_types as $type ) { |
| 776 |
if ( in_array( $type, $question_types, true ) ) { |
| 777 |
$required = true; |
| 778 |
break; |
| 779 |
} |
| 780 |
} |
| 781 |
|
| 782 |
return $required; |
| 783 |
} |
| 784 |
|
| 785 |
/** |
| 786 |
* Get last or first quiz attempt |
| 787 |
* |
| 788 |
* @since 2.1.0 |
| 789 |
* @since 2.1.3 user_id param added. |
| 790 |
* |
| 791 |
* @param integer $quiz_id quiz id to get attempt of. |
| 792 |
* @param integer $user_id user ID who attempt the quiz. |
| 793 |
* @param string $order ASC or DESC, default is DESC |
| 794 |
* pass ASC to get first attempt. |
| 795 |
* |
| 796 |
* @return mixed object on success, null on failure |
| 797 |
*/ |
| 798 |
public function get_first_or_last_attempt( int $quiz_id, int $user_id = 0, string $order = 'DESC' ) { |
| 799 |
$attempt = QueryHelper::get_row( |
| 800 |
$this->get_table(), |
| 801 |
array( |
| 802 |
'quiz_id' => $quiz_id, |
| 803 |
'user_id' => tutor_utils()->get_user_id( $user_id ), |
| 804 |
), |
| 805 |
'attempt_id', |
| 806 |
$order |
| 807 |
); |
| 808 |
return $attempt; |
| 809 |
} |
| 810 |
|
| 811 |
/** |
| 812 |
* Get total number of quizzes by course id |
| 813 |
* |
| 814 |
* @since 2.2.0 |
| 815 |
* |
| 816 |
* @param int|array $course_id Course id or array of course ids. |
| 817 |
* |
| 818 |
* @return int |
| 819 |
*/ |
| 820 |
public static function get_quiz_count_by_course( $course_id ) { |
| 821 |
global $wpdb; |
| 822 |
|
| 823 |
$and_clause = is_array( $course_id ) && count( $course_id ) ? ' AND post_parent IN (' . QueryHelper::prepare_in_clause( $course_id ) . ')' : "AND post_parent = $course_id"; |
| 824 |
|
| 825 |
//phpcs:disable |
| 826 |
$count = $wpdb->get_var( |
| 827 |
$wpdb->prepare( |
| 828 |
"SELECT |
| 829 |
COUNT(ID) |
| 830 |
FROM {$wpdb->posts} |
| 831 |
WHERE post_parent IN |
| 832 |
(SELECT |
| 833 |
ID |
| 834 |
FROM {$wpdb->posts} |
| 835 |
WHERE post_type = %s |
| 836 |
{$and_clause} |
| 837 |
AND post_status = %s |
| 838 |
) |
| 839 |
AND post_type = %s |
| 840 |
AND post_status = %s", |
| 841 |
'topics', |
| 842 |
'publish', |
| 843 |
'tutor_quiz', |
| 844 |
'publish' |
| 845 |
) |
| 846 |
); |
| 847 |
//phpcs:enable |
| 848 |
return $count ? $count : 0; |
| 849 |
} |
| 850 |
|
| 851 |
/** |
| 852 |
* Get final quiz result depending on all attempts. |
| 853 |
* |
| 854 |
* @since 2.4.0 |
| 855 |
* |
| 856 |
* @param int $quiz_id quiz id. |
| 857 |
* @param int $user_id user id. |
| 858 |
* |
| 859 |
* @return string pass, fail, pending |
| 860 |
*/ |
| 861 |
public static function get_quiz_result( $quiz_id, $user_id = 0 ) { |
| 862 |
global $wpdb; |
| 863 |
|
| 864 |
$all_pending = true; |
| 865 |
$result = self::RESULT_PENDING; |
| 866 |
|
| 867 |
$user_id = tutor_utils()->get_user_id( $user_id ); |
| 868 |
$attempt_list = $wpdb->get_results( $wpdb->prepare( "SELECT * FROM {$wpdb->prefix}tutor_quiz_attempts WHERE user_id=%d AND quiz_id=%d", $user_id, $quiz_id ) ); |
| 869 |
|
| 870 |
$total_pending_attempt = (int) $wpdb->get_var( |
| 871 |
$wpdb->prepare( |
| 872 |
"SELECT COUNT(attempt_id) total |
| 873 |
FROM {$wpdb->prefix}tutor_quiz_attempts |
| 874 |
WHERE result=%s AND quiz_id = %d AND user_id = %d |
| 875 |
", |
| 876 |
self::RESULT_PENDING, |
| 877 |
$quiz_id, |
| 878 |
$user_id |
| 879 |
) |
| 880 |
); |
| 881 |
|
| 882 |
if ( count( $attempt_list ) !== $total_pending_attempt ) { |
| 883 |
$all_pending = false; |
| 884 |
} |
| 885 |
|
| 886 |
if ( false === $all_pending ) { |
| 887 |
$required_percentage = tutor_utils()->get_quiz_option( $quiz_id, 'passing_grade', 0 ); |
| 888 |
foreach ( $attempt_list as $attempt ) { |
| 889 |
$earned_percentage = self::calculate_attempt_earned_percentage( $attempt ); |
| 890 |
if ( $earned_percentage >= $required_percentage ) { |
| 891 |
// If at least one attempt passed then quiz passed. |
| 892 |
$result = self::RESULT_PASS; |
| 893 |
break; |
| 894 |
} else { |
| 895 |
$result = self::RESULT_FAIL; |
| 896 |
} |
| 897 |
} |
| 898 |
} |
| 899 |
|
| 900 |
return $result; |
| 901 |
} |
| 902 |
|
| 903 |
/** |
| 904 |
* Get quiz attempt details |
| 905 |
* |
| 906 |
* @since 2.6.1 |
| 907 |
* |
| 908 |
* @param integer $attempt_id attempt id. |
| 909 |
* |
| 910 |
* @return mixed |
| 911 |
*/ |
| 912 |
public static function quiz_attempt_details( int $attempt_id ) { |
| 913 |
global $wpdb; |
| 914 |
|
| 915 |
$table_quiz_attempt_answers = $wpdb->prefix . 'tutor_quiz_attempt_answers'; |
| 916 |
$table_quiz_questions = $wpdb->prefix . 'tutor_quiz_questions'; |
| 917 |
$table_quiz_attempts = $wpdb->prefix . 'tutor_quiz_attempts'; |
| 918 |
$table_quiz_question_answers = $wpdb->prefix . 'tutor_quiz_question_answers'; |
| 919 |
|
| 920 |
$query = "SELECT |
| 921 |
ques.question_id, |
| 922 |
ques.question_title, |
| 923 |
ques.question_type, |
| 924 |
( |
| 925 |
SELECT |
| 926 |
GROUP_CONCAT(answer_title) |
| 927 |
FROM |
| 928 |
{$table_quiz_question_answers} |
| 929 |
WHERE |
| 930 |
belongs_question_id = ques.question_id |
| 931 |
AND is_correct = 1 |
| 932 |
) AS correct_answers, |
| 933 |
|
| 934 |
( |
| 935 |
|
| 936 |
SELECT |
| 937 |
|
| 938 |
CASE |
| 939 |
WHEN CHAR_LENGTH(att_ans.given_answer) = 1 AND att_ans.given_answer REGEXP '^[0-9]$' THEN |
| 940 |
-- If given_answer is a single digit integer |
| 941 |
( |
| 942 |
SELECT |
| 943 |
answer_title |
| 944 |
FROM |
| 945 |
{$table_quiz_question_answers} |
| 946 |
WHERE |
| 947 |
answer_id = CAST(att_ans.given_answer AS UNSIGNED) |
| 948 |
) |
| 949 |
WHEN CHAR_LENGTH(att_ans.given_answer) > 1 AND SUBSTRING(att_ans.given_answer, 1, 2) = 'a:' THEN |
| 950 |
-- If given_answer is serialized array |
| 951 |
( |
| 952 |
att_ans.given_answer |
| 953 |
) |
| 954 |
ELSE |
| 955 |
-- If given_answer is a serialized string |
| 956 |
att_ans.given_answer |
| 957 |
END |
| 958 |
) AS given_answer, |
| 959 |
att_ans.question_mark, |
| 960 |
att_ans.achieved_mark, |
| 961 |
att_ans.is_correct, |
| 962 |
( |
| 963 |
SELECT |
| 964 |
attempt_info |
| 965 |
FROM {$table_quiz_attempts} |
| 966 |
WHERE attempt_id = {$attempt_id} |
| 967 |
LIMIT 1 |
| 968 |
) AS attempt_info |
| 969 |
FROM |
| 970 |
{$table_quiz_attempt_answers} AS att_ans |
| 971 |
JOIN {$table_quiz_questions} AS ques ON ques.question_id = att_ans.question_id |
| 972 |
JOIN {$table_quiz_question_answers} AS ans ON ans.answer_id = att_ans.attempt_answer_id |
| 973 |
WHERE |
| 974 |
quiz_attempt_id = %d |
| 975 |
LIMIT |
| 976 |
50 |
| 977 |
"; |
| 978 |
|
| 979 |
//phpcs:ignore |
| 980 |
$result = $wpdb->get_results( $wpdb->prepare( $query, $attempt_id ) ); |
| 981 |
|
| 982 |
// If array and count result then loop with each result and prepare given answer. |
| 983 |
if ( is_array( $result ) && count( $result ) ) { |
| 984 |
foreach ( $result as $key => $value ) { |
| 985 |
// Check if given answer is a serialized string. |
| 986 |
if ( is_serialized( $value->given_answer ) ) { |
| 987 |
$given_answers = tutor_utils()->get_answer_by_id( maybe_unserialize( $value->given_answer ) ); |
| 988 |
$result[ $key ]->given_answer = array_column( $given_answers, 'answer_title' ); |
| 989 |
} elseif ( is_numeric( $value->given_answer ) ) { |
| 990 |
$given_answers = tutor_utils()->get_answer_by_id( maybe_unserialize( $value->given_answer ) ); |
| 991 |
$result[ $key ]->given_answer = array_column( $given_answers, 'answer_title' ); |
| 992 |
} |
| 993 |
} |
| 994 |
} |
| 995 |
|
| 996 |
return $result; |
| 997 |
} |
| 998 |
|
| 999 |
/** |
| 1000 |
* Get a question record. |
| 1001 |
* |
| 1002 |
* @since 3.0.0 |
| 1003 |
* |
| 1004 |
* @param int $question_id quiz question id. |
| 1005 |
* |
| 1006 |
* @return array|object|null|void |
| 1007 |
*/ |
| 1008 |
public static function get_question( $question_id ) { |
| 1009 |
global $wpdb; |
| 1010 |
return $wpdb->get_row( $wpdb->prepare( "SELECT * FROM {$wpdb->prefix}tutor_quiz_questions WHERE question_id = %d", $question_id ) ); |
| 1011 |
} |
| 1012 |
|
| 1013 |
/** |
| 1014 |
* Get all answer's of a quiz question. |
| 1015 |
* |
| 1016 |
* @since 3.0.0 |
| 1017 |
* |
| 1018 |
* @param int $question_id question id. |
| 1019 |
* @param string $question_type question type. |
| 1020 |
* |
| 1021 |
* @return array |
| 1022 |
*/ |
| 1023 |
public static function get_question_answers( $question_id, $question_type = null ) { |
| 1024 |
global $wpdb; |
| 1025 |
|
| 1026 |
$query = "SELECT * FROM {$wpdb->prefix}tutor_quiz_question_answers WHERE belongs_question_id = %d"; |
| 1027 |
|
| 1028 |
if ( $question_type ) { |
| 1029 |
$query .= ' AND belongs_question_type = %s ORDER BY answer_order ASC'; |
| 1030 |
//phpcs:ignore |
| 1031 |
$answers = $wpdb->get_results( $wpdb->prepare( $query, $question_id, $question_type ) ); |
| 1032 |
} else { |
| 1033 |
$query .= ' ORDER BY answer_order ASC'; |
| 1034 |
//phpcs:ignore |
| 1035 |
$answers = $wpdb->get_results( $wpdb->prepare( $query, $question_id ) ); |
| 1036 |
} |
| 1037 |
|
| 1038 |
foreach ( $answers as $answer ) { |
| 1039 |
$answer->answer_title = stripslashes( $answer->answer_title ); |
| 1040 |
if ( $answer->image_id ) { |
| 1041 |
$answer->image_url = wp_get_attachment_url( $answer->image_id ); |
| 1042 |
} |
| 1043 |
} |
| 1044 |
|
| 1045 |
return $answers; |
| 1046 |
} |
| 1047 |
|
| 1048 |
/** |
| 1049 |
* Get next answer order SL no |
| 1050 |
* |
| 1051 |
* @since 3.0.0 |
| 1052 |
* |
| 1053 |
* @param int $question_id question id. |
| 1054 |
* @param int $question_type question type. |
| 1055 |
* |
| 1056 |
* @return int |
| 1057 |
*/ |
| 1058 |
public static function get_next_answer_order( $question_id, $question_type ) { |
| 1059 |
global $wpdb; |
| 1060 |
$max_id = (int) $wpdb->get_var( |
| 1061 |
$wpdb->prepare( |
| 1062 |
"SELECT MAX(answer_order) FROM {$wpdb->prefix}tutor_quiz_question_answers WHERE belongs_question_id = %d AND belongs_question_type = %s",//phpcs:ignore |
| 1063 |
$question_id, |
| 1064 |
$question_type |
| 1065 |
) |
| 1066 |
); |
| 1067 |
|
| 1068 |
return $max_id + 1; |
| 1069 |
} |
| 1070 |
|
| 1071 |
/** |
| 1072 |
* Get quiz details by quiz id. |
| 1073 |
* |
| 1074 |
* @since 3.0.0 |
| 1075 |
* |
| 1076 |
* @param int $quiz_id quiz id. |
| 1077 |
* |
| 1078 |
* @return object |
| 1079 |
*/ |
| 1080 |
public static function get_quiz_details( $quiz_id ) { |
| 1081 |
$quiz = get_post( $quiz_id ); |
| 1082 |
$quiz->quiz_option = get_post_meta( $quiz_id, Quiz::META_QUIZ_OPTION, true ); |
| 1083 |
$quiz->questions = tutor_utils()->get_questions_by_quiz( $quiz_id ); |
| 1084 |
|
| 1085 |
if ( ! is_array( $quiz->questions ) ) { |
| 1086 |
$quiz->questions = array(); |
| 1087 |
} |
| 1088 |
|
| 1089 |
foreach ( $quiz->questions as $question ) { |
| 1090 |
$question->question_answers = self::get_question_answers( $question->question_id, $question->question_type ); |
| 1091 |
if ( isset( $question->question_settings ) ) { |
| 1092 |
$question->question_settings = maybe_unserialize( $question->question_settings ); |
| 1093 |
} |
| 1094 |
} |
| 1095 |
|
| 1096 |
return $quiz; |
| 1097 |
} |
| 1098 |
|
| 1099 |
/** |
| 1100 |
* Calculate attempt earned percentage |
| 1101 |
* |
| 1102 |
* @since 3.7.1 |
| 1103 |
* |
| 1104 |
* @param int|object $attempt attempt id or attempt object. |
| 1105 |
* |
| 1106 |
* @return float |
| 1107 |
*/ |
| 1108 |
public static function calculate_attempt_earned_percentage( $attempt ) { |
| 1109 |
if ( is_numeric( $attempt ) ) { |
| 1110 |
$attempt = tutor_utils()->get_attempt( $attempt ); |
| 1111 |
} |
| 1112 |
|
| 1113 |
if ( ! $attempt ) { |
| 1114 |
return 0; |
| 1115 |
} |
| 1116 |
|
| 1117 |
$total_marks = (float) $attempt->total_marks; |
| 1118 |
$earned_marks = (float) $attempt->earned_marks; |
| 1119 |
|
| 1120 |
$earned_percentage = ( $earned_marks > 0 && $total_marks > 0 ) |
| 1121 |
? number_format( ( $earned_marks * 100 ) / $total_marks ) |
| 1122 |
: 0; |
| 1123 |
|
| 1124 |
return $earned_percentage; |
| 1125 |
} |
| 1126 |
|
| 1127 |
|
| 1128 |
/** |
| 1129 |
* Prepare attempt result from attempt data. |
| 1130 |
* |
| 1131 |
* @since 3.7.1 |
| 1132 |
* |
| 1133 |
* @param int|object $attempt attempt id or object. |
| 1134 |
* |
| 1135 |
* @return string pass, fail, pending |
| 1136 |
*/ |
| 1137 |
public static function prepare_attempt_result( $attempt ) { |
| 1138 |
if ( is_numeric( $attempt ) ) { |
| 1139 |
$attempt = tutor_utils()->get_attempt( $attempt ); |
| 1140 |
} |
| 1141 |
|
| 1142 |
if ( ! $attempt ) { |
| 1143 |
return false; |
| 1144 |
} |
| 1145 |
|
| 1146 |
$attempt_info = maybe_unserialize( $attempt->attempt_info ); |
| 1147 |
$answers_map = self::get_quiz_answers_by_attempt_id( $attempt->attempt_id, true ); |
| 1148 |
|
| 1149 |
$earned_percentage = self::calculate_attempt_earned_percentage( $attempt ); |
| 1150 |
$passing_grade = (int) $attempt_info['passing_grade'] ?? 0; |
| 1151 |
|
| 1152 |
$answers = $answers_map[ $attempt->attempt_id ] ?? array(); |
| 1153 |
$answers = is_array( $answers ) ? $answers : array(); |
| 1154 |
|
| 1155 |
$has_pending = (bool) count( |
| 1156 |
array_filter( $answers, fn( $answer ) => null === $answer->is_correct ) |
| 1157 |
); |
| 1158 |
|
| 1159 |
if ( $has_pending ) { |
| 1160 |
$result = self::RESULT_PENDING; |
| 1161 |
} else { |
| 1162 |
$result = ( $earned_percentage >= $passing_grade ) ? self::RESULT_PASS : self::RESULT_FAIL; |
| 1163 |
} |
| 1164 |
|
| 1165 |
return $result; |
| 1166 |
} |
| 1167 |
|
| 1168 |
/** |
| 1169 |
* Get a quiz attempt result |
| 1170 |
* |
| 1171 |
* @since 3.7.1 |
| 1172 |
* |
| 1173 |
* @param int $attempt_id attempt id. |
| 1174 |
* |
| 1175 |
* @return string pass, fail, pending |
| 1176 |
*/ |
| 1177 |
public static function get_attempt_result( $attempt_id ) { |
| 1178 |
$attempt = tutor_utils()->get_attempt( $attempt_id ); |
| 1179 |
if ( ! $attempt ) { |
| 1180 |
return false; |
| 1181 |
} |
| 1182 |
|
| 1183 |
/** |
| 1184 |
* If result is processed then return it |
| 1185 |
* |
| 1186 |
* @since 3.7.1 |
| 1187 |
*/ |
| 1188 |
if ( isset( $attempt->result ) && ! empty( $attempt->result ) ) { |
| 1189 |
return $attempt->result; |
| 1190 |
} |
| 1191 |
|
| 1192 |
/** |
| 1193 |
* Backward compatibility for getting a attempt result |
| 1194 |
* |
| 1195 |
* @since 3.7.1 |
| 1196 |
*/ |
| 1197 |
$result = self::prepare_attempt_result( $attempt ); |
| 1198 |
|
| 1199 |
return $result; |
| 1200 |
} |
| 1201 |
|
| 1202 |
/** |
| 1203 |
* Update attempt result. |
| 1204 |
* |
| 1205 |
* @param int $attempt_id attempt id. |
| 1206 |
* |
| 1207 |
* @return bool |
| 1208 |
*/ |
| 1209 |
public static function update_attempt_result( $attempt_id ) { |
| 1210 |
$attempt_result = self::prepare_attempt_result( $attempt_id ); |
| 1211 |
if ( $attempt_result ) { |
| 1212 |
QueryHelper::update( |
| 1213 |
QueryHelper::prepare_table_name( 'tutor_quiz_attempts' ), |
| 1214 |
array( 'result' => $attempt_result ), |
| 1215 |
array( 'attempt_id' => $attempt_id ) |
| 1216 |
); |
| 1217 |
|
| 1218 |
return true; |
| 1219 |
} |
| 1220 |
|
| 1221 |
return false; |
| 1222 |
} |
| 1223 |
} |
| 1224 |
|
