BaseModel.php
11 months ago
BillingModel.php
1 year ago
CartModel.php
1 year ago
CouponModel.php
11 months ago
CourseModel.php
11 months ago
LessonModel.php
11 months ago
OrderActivitiesModel.php
1 year ago
OrderMetaModel.php
1 year ago
OrderModel.php
11 months ago
QuizModel.php
11 months ago
UserModel.php
1 year ago
WithdrawModel.php
1 year ago
QuizModel.php
1144 lines
| 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 | |
| 28 | /** |
| 29 | * Get quiz table name |
| 30 | * |
| 31 | * @since 2.1.0 |
| 32 | * |
| 33 | * @return string |
| 34 | */ |
| 35 | public function get_table(): string { |
| 36 | global $wpdb; |
| 37 | return $wpdb->prefix . 'tutor_quiz_attempts'; |
| 38 | } |
| 39 | |
| 40 | /** |
| 41 | * Get total number of quiz |
| 42 | * |
| 43 | * @since 2.0.2 |
| 44 | * |
| 45 | * @return int |
| 46 | */ |
| 47 | public static function get_total_quiz() { |
| 48 | global $wpdb; |
| 49 | |
| 50 | $sql = "SELECT COUNT(DISTINCT quiz.ID) |
| 51 | FROM {$wpdb->posts} quiz |
| 52 | INNER JOIN {$wpdb->posts} topic ON quiz.post_parent=topic.ID |
| 53 | INNER JOIN {$wpdb->posts} course ON topic.post_parent=course.ID |
| 54 | WHERE course.post_type=%s |
| 55 | AND course.post_status = 'publish' |
| 56 | AND quiz.post_type='tutor_quiz'"; |
| 57 | |
| 58 | //phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared |
| 59 | return $wpdb->get_var( $wpdb->prepare( $sql, tutor()->course_post_type ) ); |
| 60 | } |
| 61 | |
| 62 | /** |
| 63 | * Get Attempt row by grade method settings |
| 64 | * |
| 65 | * @since 1.4.2 |
| 66 | * |
| 67 | * @param int $quiz_id quiz id. |
| 68 | * @param int $user_id user id. |
| 69 | * |
| 70 | * @return array|bool|null|object |
| 71 | */ |
| 72 | public function get_quiz_attempt( $quiz_id = 0, $user_id = 0 ) { |
| 73 | global $wpdb; |
| 74 | |
| 75 | $quiz_id = tutils()->get_post_id( $quiz_id ); |
| 76 | $user_id = tutils()->get_user_id( $user_id ); |
| 77 | |
| 78 | $attempt = false; |
| 79 | |
| 80 | $quiz_grade_method = get_tutor_option( 'quiz_grade_method', 'highest_grade' ); |
| 81 | $from_string = "FROM {$wpdb->tutor_quiz_attempts} WHERE quiz_id = %d AND user_id = %d AND attempt_status != 'attempt_started' "; |
| 82 | |
| 83 | //phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared |
| 84 | if ( 'highest_grade' === $quiz_grade_method ) { |
| 85 | $attempt = $wpdb->get_row( $wpdb->prepare( "SELECT * {$from_string} ORDER BY earned_marks DESC LIMIT 1; ", $quiz_id, $user_id ) ); |
| 86 | } elseif ( 'average_grade' === $quiz_grade_method ) { |
| 87 | |
| 88 | $attempt = $wpdb->get_row( |
| 89 | $wpdb->prepare( |
| 90 | "SELECT {$wpdb->tutor_quiz_attempts}.*, |
| 91 | COUNT(attempt_id) AS attempt_count, |
| 92 | AVG(total_marks) AS total_marks, |
| 93 | AVG(earned_marks) AS earned_marks {$from_string} |
| 94 | ", |
| 95 | $quiz_id, |
| 96 | $user_id |
| 97 | ) |
| 98 | ); |
| 99 | } elseif ( 'first_attempt' === $quiz_grade_method ) { |
| 100 | |
| 101 | $attempt = $wpdb->get_row( $wpdb->prepare( "SELECT * {$from_string} ORDER BY attempt_id ASC LIMIT 1; ", $quiz_id, $user_id ) ); |
| 102 | } elseif ( 'last_attempt' === $quiz_grade_method ) { |
| 103 | |
| 104 | $attempt = $wpdb->get_row( $wpdb->prepare( "SELECT * {$from_string} ORDER BY attempt_id DESC LIMIT 1; ", $quiz_id, $user_id ) ); |
| 105 | } |
| 106 | //phpcs:enable WordPress.DB.PreparedSQL.InterpolatedNotPrepared |
| 107 | |
| 108 | return $attempt; |
| 109 | } |
| 110 | |
| 111 | /** |
| 112 | * Get all of the attempts by an user of a quiz |
| 113 | * |
| 114 | * @since 1.0.0 |
| 115 | * |
| 116 | * @param int $quiz_id quiz ID. |
| 117 | * @param int $user_id user ID. |
| 118 | * |
| 119 | * @return array|bool|null|object |
| 120 | */ |
| 121 | public function quiz_attempts( $quiz_id = 0, $user_id = 0 ) { |
| 122 | global $wpdb; |
| 123 | |
| 124 | $quiz_id = tutor_utils()->get_post_id( $quiz_id ); |
| 125 | $user_id = tutor_utils()->get_user_id( $user_id ); |
| 126 | |
| 127 | $cache_key = "tutor_quiz_attempts_for_{$user_id}_{$quiz_id}"; |
| 128 | $attempts = TutorCache::get( $cache_key ); |
| 129 | |
| 130 | if ( false === $attempts ) { |
| 131 | $attempts = $wpdb->get_results( |
| 132 | $wpdb->prepare( |
| 133 | "SELECT * |
| 134 | FROM {$wpdb->prefix}tutor_quiz_attempts |
| 135 | WHERE quiz_id = %d |
| 136 | AND user_id = %d |
| 137 | ORDER BY attempt_id DESC |
| 138 | ", |
| 139 | $quiz_id, |
| 140 | $user_id |
| 141 | ) |
| 142 | ); |
| 143 | TutorCache::set( $cache_key, $attempts ); |
| 144 | } |
| 145 | |
| 146 | if ( is_array( $attempts ) && count( $attempts ) ) { |
| 147 | return $attempts; |
| 148 | } |
| 149 | |
| 150 | return false; |
| 151 | } |
| 152 | |
| 153 | /** |
| 154 | * Get Quiz question by question id |
| 155 | * |
| 156 | * @since 1.0.0 |
| 157 | * |
| 158 | * @param int $question_id question ID. |
| 159 | * |
| 160 | * @return array|bool|object|void|null |
| 161 | */ |
| 162 | public static function get_quiz_question_by_id( $question_id = 0 ) { |
| 163 | global $wpdb; |
| 164 | |
| 165 | if ( $question_id ) { |
| 166 | $question = $wpdb->get_row( |
| 167 | $wpdb->prepare( |
| 168 | "SELECT * |
| 169 | FROM {$wpdb->prefix}tutor_quiz_questions |
| 170 | WHERE question_id = %d |
| 171 | LIMIT 0, 1; |
| 172 | ", |
| 173 | $question_id |
| 174 | ) |
| 175 | ); |
| 176 | |
| 177 | return $question; |
| 178 | } |
| 179 | |
| 180 | return false; |
| 181 | } |
| 182 | |
| 183 | /** |
| 184 | * Get all ended attempts by an user of a quiz |
| 185 | * |
| 186 | * @since 1.4.1 |
| 187 | * |
| 188 | * @param int $quiz_id quiz ID. |
| 189 | * @param int $user_id user ID. |
| 190 | * |
| 191 | * @return array|bool|null|object |
| 192 | */ |
| 193 | public function quiz_ended_attempts( $quiz_id = 0, $user_id = 0 ) { |
| 194 | global $wpdb; |
| 195 | |
| 196 | $quiz_id = tutor_utils()->get_post_id( $quiz_id ); |
| 197 | $user_id = tutor_utils()->get_user_id( $user_id ); |
| 198 | |
| 199 | $attempts = $wpdb->get_results( |
| 200 | $wpdb->prepare( |
| 201 | "SELECT * |
| 202 | FROM {$wpdb->prefix}tutor_quiz_attempts |
| 203 | WHERE quiz_id = %d |
| 204 | AND user_id = %d |
| 205 | AND attempt_status != %s |
| 206 | ", |
| 207 | $quiz_id, |
| 208 | $user_id, |
| 209 | 'attempt_started' |
| 210 | ) |
| 211 | ); |
| 212 | |
| 213 | if ( is_array( $attempts ) && count( $attempts ) ) { |
| 214 | return $attempts; |
| 215 | } |
| 216 | |
| 217 | return false; |
| 218 | } |
| 219 | |
| 220 | /** |
| 221 | * Get the next question order ID |
| 222 | * |
| 223 | * @since 1.0.0 |
| 224 | * |
| 225 | * @param integer $quiz_id quiz ID. |
| 226 | * |
| 227 | * @return int |
| 228 | */ |
| 229 | public static function quiz_next_question_order_id( $quiz_id ) { |
| 230 | global $wpdb; |
| 231 | |
| 232 | $last_order = (int) $wpdb->get_var( |
| 233 | $wpdb->prepare( |
| 234 | "SELECT MAX(question_order) |
| 235 | FROM {$wpdb->prefix}tutor_quiz_questions |
| 236 | WHERE quiz_id = %d ; |
| 237 | ", |
| 238 | $quiz_id |
| 239 | ) |
| 240 | ); |
| 241 | |
| 242 | return $last_order + 1; |
| 243 | } |
| 244 | |
| 245 | /** |
| 246 | * Get next quiz question ID |
| 247 | * |
| 248 | * @since 1.0.0 |
| 249 | * |
| 250 | * @return int |
| 251 | */ |
| 252 | public static function quiz_next_question_id() { |
| 253 | global $wpdb; |
| 254 | |
| 255 | $last_order = (int) $wpdb->get_var( "SELECT MAX(question_id) FROM {$wpdb->prefix}tutor_quiz_questions;" ); |
| 256 | return $last_order + 1; |
| 257 | } |
| 258 | |
| 259 | /** |
| 260 | * Total number of quiz attempts |
| 261 | * |
| 262 | * @since 1.0.0 |
| 263 | * |
| 264 | * @param string $search_term search term. |
| 265 | * @param integer $course_id course ID. |
| 266 | * @param string $tab tab. |
| 267 | * @param string $date_filter date filter. |
| 268 | * |
| 269 | * @return int |
| 270 | */ |
| 271 | public static function get_total_quiz_attempts( $search_term = '', int $course_id = 0, string $tab = '', $date_filter = '' ) { |
| 272 | global $wpdb; |
| 273 | |
| 274 | if ( '' !== $search_term ) { |
| 275 | $search_term = '%' . $wpdb->esc_like( $search_term ) . '%'; |
| 276 | } |
| 277 | |
| 278 | // Set query based on action tab. |
| 279 | $pass_mark = "((( SUBSTRING_INDEX( |
| 280 | SUBSTRING_INDEX( |
| 281 | attempt_info, |
| 282 | CONCAT( |
| 283 | '\"passing_grade\";s:', |
| 284 | SUBSTRING_INDEX(SUBSTRING_INDEX(attempt_info, '\"passing_grade\";s:', -1), ':\"', 1), |
| 285 | ':\"' |
| 286 | ), |
| 287 | -1 |
| 288 | ), |
| 289 | '\"', |
| 290 | 1 |
| 291 | ))/100) * quiz_attempts.total_marks)"; |
| 292 | $pending_count = "(SELECT COUNT(DISTINCT attempt_answer_id) FROM {$wpdb->prefix}tutor_quiz_attempt_answers WHERE quiz_attempt_id=quiz_attempts.attempt_id AND is_correct IS NULL)"; |
| 293 | |
| 294 | $tab_join = ''; |
| 295 | $tab_clause = ''; |
| 296 | if ( '' !== $tab ) { |
| 297 | $tab_join = "INNER JOIN {$wpdb->prefix}tutor_quiz_attempt_answers AS ans ON quiz_attempts.attempt_id = ans.quiz_attempt_id"; |
| 298 | } |
| 299 | switch ( $tab ) { |
| 300 | case 'pass': |
| 301 | // Just check if the earned mark is greater than pass mark. |
| 302 | // It doesn't matter if there is any pending or failed question. |
| 303 | $tab_clause = " AND quiz_attempts.earned_marks >= {$pass_mark} "; |
| 304 | break; |
| 305 | |
| 306 | case 'fail': |
| 307 | // Check if earned marks is less than pass mark and there is no pending question. |
| 308 | $tab_clause = " AND quiz_attempts.earned_marks < {$pass_mark} AND {$pending_count} < 1 "; |
| 309 | break; |
| 310 | case 'pending': |
| 311 | $tab_clause = " AND {$pending_count} > 0 "; |
| 312 | break; |
| 313 | } |
| 314 | |
| 315 | $course_join = ''; |
| 316 | $course_clause = ''; |
| 317 | if ( $course_id || '' !== $search_term ) { |
| 318 | $course_join = "INNER JOIN {$wpdb->posts} AS course ON course.ID = quiz_attempts.course_id"; |
| 319 | } |
| 320 | if ( $course_id ) { |
| 321 | $course_clause = " AND quiz_attempts.course_id = $course_id"; |
| 322 | } |
| 323 | |
| 324 | $user_join = ''; |
| 325 | $user_clause = ''; |
| 326 | $search_term1 = sanitize_text_field( $search_term ); |
| 327 | $search_term2 = sanitize_text_field( $search_term ); |
| 328 | $search_term3 = sanitize_text_field( $search_term ); |
| 329 | if ( '' !== $search_term ) { |
| 330 | $user_join = "INNER JOIN {$wpdb->users} |
| 331 | ON quiz_attempts.user_id = {$wpdb->users}.ID"; |
| 332 | |
| 333 | $user_clause = "AND ( user_email LIKE '%$search_term1%' OR display_name LIKE '%$search_term2%' OR course.post_title LIKE '%$search_term3%' )"; |
| 334 | } |
| 335 | |
| 336 | if ( '' !== $date_filter ) { |
| 337 | $date_filter = '' != $date_filter ? tutor_get_formated_date( 'Y-m-d', $date_filter ) : ''; |
| 338 | $date_filter = '' != $date_filter ? " AND DATE(quiz_attempts.attempt_started_at) = '$date_filter' " : ''; |
| 339 | } |
| 340 | |
| 341 | //phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared |
| 342 | $count = $wpdb->get_var( |
| 343 | $wpdb->prepare( |
| 344 | "SELECT COUNT( DISTINCT attempt_id) |
| 345 | FROM {$wpdb->prefix}tutor_quiz_attempts quiz_attempts |
| 346 | INNER JOIN {$wpdb->posts} quiz |
| 347 | ON quiz_attempts.quiz_id = quiz.ID |
| 348 | {$user_join} |
| 349 | {$course_join} |
| 350 | {$tab_join} |
| 351 | WHERE attempt_status != %s |
| 352 | {$user_clause} |
| 353 | {$course_clause} |
| 354 | {$tab_clause} |
| 355 | {$date_filter} |
| 356 | ", |
| 357 | 'attempt_started' |
| 358 | ) |
| 359 | ); |
| 360 | |
| 361 | //phpcs:enable WordPress.DB.PreparedSQL.InterpolatedNotPrepared |
| 362 | |
| 363 | return (int) $count; |
| 364 | } |
| 365 | |
| 366 | /** |
| 367 | * Get the all quiz attempts |
| 368 | * |
| 369 | * @since 1.0.0 |
| 370 | * @since 1.9.5 sorting paramas added |
| 371 | * |
| 372 | * @param integer $start start. |
| 373 | * @param integer $limit limit. |
| 374 | * @param string $search_filter search filter. |
| 375 | * @param string $course_filter course filter. |
| 376 | * @param string $date_filter date filter. |
| 377 | * @param string $order_filter order filter. |
| 378 | * @param mixed $result_state result state. |
| 379 | * @param boolean $count_only count only or not. |
| 380 | * @param boolean $instructor_id_check need instructor id check or not. |
| 381 | * |
| 382 | * @return mixed |
| 383 | */ |
| 384 | 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 ) { |
| 385 | global $wpdb; |
| 386 | |
| 387 | $start = sanitize_text_field( $start ); |
| 388 | $limit = sanitize_text_field( $limit ); |
| 389 | $search_filter = sanitize_text_field( $search_filter ); |
| 390 | $course_filter = sanitize_text_field( $course_filter ); |
| 391 | $date_filter = sanitize_text_field( $date_filter ); |
| 392 | $order_filter = sanitize_sql_orderby( $order_filter ); |
| 393 | |
| 394 | $search_term_raw = $search_filter; |
| 395 | $search_filter = '%' . $wpdb->esc_like( $search_filter ) . '%'; |
| 396 | |
| 397 | // Filter by course. |
| 398 | if ( '' != $course_filter ) { |
| 399 | ! is_array( $course_filter ) ? $course_filter = array( $course_filter ) : 0; |
| 400 | $course_ids = implode( ',', array_map( 'intval', $course_filter ) ); |
| 401 | $course_filter = " AND quiz_attempts.course_id IN ($course_ids) "; |
| 402 | } |
| 403 | |
| 404 | // Filter by date. |
| 405 | $date_filter = '' != $date_filter ? tutor_get_formated_date( 'Y-m-d', $date_filter ) : ''; |
| 406 | $date_filter = '' != $date_filter ? " AND DATE(quiz_attempts.attempt_started_at) = '$date_filter' " : ''; |
| 407 | |
| 408 | $result_clause = ''; |
| 409 | $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'; |
| 410 | $limit_offset = $count_only ? '' : ' LIMIT ' . $limit . ' OFFSET ' . $start; |
| 411 | |
| 412 | $pass_mark = "((( SUBSTRING_INDEX( |
| 413 | SUBSTRING_INDEX( |
| 414 | attempt_info, |
| 415 | CONCAT( |
| 416 | '\"passing_grade\";s:', |
| 417 | SUBSTRING_INDEX(SUBSTRING_INDEX(attempt_info, '\"passing_grade\";s:', -1), ':\"', 1), |
| 418 | ':\"' |
| 419 | ), |
| 420 | -1 |
| 421 | ), |
| 422 | '\"', |
| 423 | 1 |
| 424 | ))/100) * quiz_attempts.total_marks)"; |
| 425 | $pending_count = "(SELECT COUNT(DISTINCT attempt_answer_id) FROM {$wpdb->prefix}tutor_quiz_attempt_answers WHERE quiz_attempt_id=quiz_attempts.attempt_id AND is_correct IS NULL)"; |
| 426 | |
| 427 | // Get attempts by instructor ID. |
| 428 | $instructor_clause = ''; |
| 429 | $instructor_join = ''; |
| 430 | if ( $instructor_id_check ) { |
| 431 | $current_user_id = get_current_user_id(); |
| 432 | $instructor_id = tutor_utils()->has_user_role( 'administrator', $current_user_id ) ? null : $current_user_id; |
| 433 | |
| 434 | if ( $instructor_id ) { |
| 435 | // $instructor_clause = " AND (instructor_meta.meta_key='_tutor_instructor_course_id' AND instructor_meta.user_id=$instructor_id)"; |
| 436 | $instructor_clause = " INNER JOIN {$wpdb->prefix}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) "; |
| 437 | } |
| 438 | } |
| 439 | |
| 440 | // Switc hthrough result state and assign meta clause. |
| 441 | switch ( $result_state ) { |
| 442 | case 'pass': |
| 443 | // Just check if the earned mark is greater than pass mark. |
| 444 | // It doesn't matter if there is any pending or failed question. |
| 445 | $result_clause = " AND quiz_attempts.earned_marks>={$pass_mark} "; |
| 446 | break; |
| 447 | |
| 448 | case 'fail': |
| 449 | // Check if earned marks is less than pass mark and there is no pending question. |
| 450 | $result_clause = " AND quiz_attempts.earned_marks<{$pass_mark} AND {$pending_count} < 1 "; |
| 451 | break; |
| 452 | |
| 453 | case 'pending': |
| 454 | $result_clause = " AND {$pending_count}>0 "; |
| 455 | break; |
| 456 | } |
| 457 | |
| 458 | //phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared |
| 459 | $query = $wpdb->prepare( |
| 460 | "SELECT {$select_columns} |
| 461 | FROM {$wpdb->prefix}tutor_quiz_attempts quiz_attempts |
| 462 | INNER JOIN {$wpdb->posts} quiz ON quiz_attempts.quiz_id = quiz.ID |
| 463 | INNER JOIN {$wpdb->users} AS users ON quiz_attempts.user_id = users.ID |
| 464 | INNER JOIN {$wpdb->posts} AS course ON course.ID = quiz_attempts.course_id |
| 465 | {$instructor_clause} |
| 466 | WHERE quiz_attempts.attempt_ended_at IS NOT NULL |
| 467 | AND ( |
| 468 | users.user_email = %s |
| 469 | OR users.display_name LIKE %s |
| 470 | OR quiz.post_title LIKE %s |
| 471 | OR course.post_title LIKE %s |
| 472 | ) |
| 473 | AND quiz_attempts.attempt_ended_at IS NOT NULL |
| 474 | {$result_clause} |
| 475 | {$course_filter} |
| 476 | {$date_filter} |
| 477 | ORDER BY quiz_attempts.attempt_ended_at {$order_filter} {$limit_offset}", |
| 478 | $search_term_raw, |
| 479 | $search_filter, |
| 480 | $search_filter, |
| 481 | $search_filter |
| 482 | ); |
| 483 | |
| 484 | //phpcs:enable WordPress.DB.PreparedSQL.InterpolatedNotPrepared |
| 485 | |
| 486 | //phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared |
| 487 | return $count_only ? $wpdb->get_var( $query ) : $wpdb->get_results( $query ); |
| 488 | } |
| 489 | |
| 490 | /** |
| 491 | * Delete quizattempt for user |
| 492 | * |
| 493 | * @since 1.9.5 |
| 494 | * |
| 495 | * @param mixed $attempt_ids attempt ids. |
| 496 | * |
| 497 | * @return void |
| 498 | */ |
| 499 | public static function delete_quiz_attempt( $attempt_ids ) { |
| 500 | global $wpdb; |
| 501 | |
| 502 | // Singlular to array. |
| 503 | ! is_array( $attempt_ids ) ? $attempt_ids = array( $attempt_ids ) : 0; |
| 504 | |
| 505 | if ( count( $attempt_ids ) ) { |
| 506 | $attempt_ids = implode( ',', $attempt_ids ); |
| 507 | |
| 508 | //phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared |
| 509 | // Deleting attempt (comment), child attempt and attempt meta (comment meta). |
| 510 | $wpdb->query( "DELETE FROM {$wpdb->prefix}tutor_quiz_attempts WHERE attempt_id IN($attempt_ids)" ); |
| 511 | $wpdb->query( "DELETE FROM {$wpdb->prefix}tutor_quiz_attempt_answers WHERE quiz_attempt_id IN($attempt_ids)" ); |
| 512 | //phpcs:enable WordPress.DB.PreparedSQL.InterpolatedNotPrepared |
| 513 | |
| 514 | do_action( 'tutor_quiz/attempt_deleted', $attempt_ids ); |
| 515 | } |
| 516 | } |
| 517 | |
| 518 | /** |
| 519 | * Sorting params added on quiz attempt |
| 520 | * |
| 521 | * @since 1.9.5 |
| 522 | * |
| 523 | * @param integer $start start. |
| 524 | * @param integer $limit limit. |
| 525 | * @param array $course_ids course ids. |
| 526 | * @param string $search_filter search filter. |
| 527 | * @param string $course_filter course filter. |
| 528 | * @param string $date_filter date filter. |
| 529 | * @param string $order_filter order filter. |
| 530 | * @param mixed $user_id user id. |
| 531 | * @param boolean $count_only is only count or not. |
| 532 | * @param boolean $all_attempt need all atempt or not. |
| 533 | * |
| 534 | * @return mixed |
| 535 | */ |
| 536 | 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 ) { |
| 537 | global $wpdb; |
| 538 | $search_filter = sanitize_text_field( $search_filter ); |
| 539 | $course_filter = (int) sanitize_text_field( $course_filter ); |
| 540 | $date_filter = sanitize_text_field( $date_filter ); |
| 541 | $order_filter = sanitize_sql_orderby( $order_filter ); |
| 542 | |
| 543 | $course_ids = array_map( |
| 544 | function ( $id ) { |
| 545 | return "'" . esc_sql( $id ) . "'"; |
| 546 | }, |
| 547 | $course_ids |
| 548 | ); |
| 549 | |
| 550 | $course_ids_in = count( $course_ids ) ? ' AND quiz_attempts.course_id IN (' . implode( ', ', $course_ids ) . ') ' : ''; |
| 551 | |
| 552 | $search_filter = $search_filter ? '%' . $wpdb->esc_like( $search_filter ) . '%' : ''; |
| 553 | $search_term_raw = $search_filter; |
| 554 | $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} )" : ''; |
| 555 | |
| 556 | $course_filter = 0 !== $course_filter ? " AND quiz_attempts.course_id = $course_filter " : ''; |
| 557 | $date_filter = '' != $date_filter ? tutor_get_formated_date( 'Y-m-d', $date_filter ) : ''; |
| 558 | $date_filter = '' != $date_filter ? " AND DATE(quiz_attempts.attempt_started_at) = '$date_filter' " : ''; |
| 559 | $user_filter = $user_id ? ' AND user_id=\'' . esc_sql( $user_id ) . '\' ' : ''; |
| 560 | |
| 561 | $limit_offset = $count_only ? '' : " LIMIT {$start}, {$limit} "; |
| 562 | $select_col = $count_only ? ' COUNT(DISTINCT quiz_attempts.attempt_id) ' : ' quiz_attempts.*, users.*, quiz.* '; |
| 563 | |
| 564 | $attempt_type = $all_attempt ? '' : " AND quiz_attempts.attempt_status != 'attempt_started' "; |
| 565 | |
| 566 | $query = "SELECT {$select_col} |
| 567 | FROM {$wpdb->prefix}tutor_quiz_attempts AS quiz_attempts |
| 568 | INNER JOIN {$wpdb->posts} AS quiz |
| 569 | ON quiz_attempts.quiz_id = quiz.ID |
| 570 | INNER JOIN {$wpdb->users} AS users |
| 571 | ON quiz_attempts.user_id = users.ID |
| 572 | INNER JOIN {$wpdb->posts} AS course |
| 573 | ON course.ID = quiz_attempts.course_id |
| 574 | WHERE 1=1 |
| 575 | {$attempt_type} |
| 576 | {$course_ids_in} |
| 577 | {$search_filter} |
| 578 | {$course_filter} |
| 579 | {$date_filter} |
| 580 | {$user_filter} |
| 581 | ORDER BY quiz_attempts.attempt_id {$order_filter} {$limit_offset};"; |
| 582 | |
| 583 | //phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared |
| 584 | return $count_only ? $wpdb->get_var( $query ) : $wpdb->get_results( $query ); |
| 585 | } |
| 586 | |
| 587 | /** |
| 588 | * Get answers list by quiz question |
| 589 | * |
| 590 | * @since 1.0.0 |
| 591 | * |
| 592 | * @param int $question_id question ID. |
| 593 | * @param bool $rand rand. |
| 594 | * |
| 595 | * @return array|bool|null|object |
| 596 | */ |
| 597 | public static function get_answers_by_quiz_question( $question_id, $rand = false ) { |
| 598 | global $wpdb; |
| 599 | |
| 600 | $question = $wpdb->get_row( |
| 601 | $wpdb->prepare( |
| 602 | "SELECT * |
| 603 | FROM {$wpdb->prefix}tutor_quiz_questions |
| 604 | WHERE question_id = %d; |
| 605 | ", |
| 606 | $question_id |
| 607 | ) |
| 608 | ); |
| 609 | |
| 610 | if ( ! $question ) { |
| 611 | return false; |
| 612 | } |
| 613 | |
| 614 | $order = ' answer_order ASC '; |
| 615 | |
| 616 | if ( $rand ) { |
| 617 | $order = ' RAND() '; |
| 618 | } |
| 619 | |
| 620 | //phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared |
| 621 | $answers = $wpdb->get_results( |
| 622 | $wpdb->prepare( |
| 623 | "SELECT * |
| 624 | FROM {$wpdb->prefix}tutor_quiz_question_answers |
| 625 | WHERE belongs_question_id = %d |
| 626 | AND belongs_question_type = %s |
| 627 | ORDER BY {$order} |
| 628 | ", |
| 629 | $question_id, |
| 630 | $question->question_type |
| 631 | ) |
| 632 | ); |
| 633 | //phpcs:enable WordPress.DB.PreparedSQL.InterpolatedNotPrepared |
| 634 | |
| 635 | return $answers; |
| 636 | } |
| 637 | |
| 638 | /** |
| 639 | * Get quiz answers by attempt id |
| 640 | * |
| 641 | * @since 1.0.0 |
| 642 | * |
| 643 | * @param mixed $attempt_id attempt ID. |
| 644 | * @param bool $add_index need index or not. |
| 645 | * |
| 646 | * @return array|null|object |
| 647 | */ |
| 648 | public static function get_quiz_answers_by_attempt_id( $attempt_id, $add_index = false ) { |
| 649 | global $wpdb; |
| 650 | |
| 651 | $ids = is_array( $attempt_id ) ? $attempt_id : array( $attempt_id ); |
| 652 | $ids_in = implode( ',', $ids ); |
| 653 | |
| 654 | if ( empty( $ids_in ) ) { |
| 655 | // Prevent empty. |
| 656 | return array(); |
| 657 | } |
| 658 | |
| 659 | //phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared |
| 660 | $results = $wpdb->get_results( |
| 661 | "SELECT answers.*, |
| 662 | question.* |
| 663 | FROM {$wpdb->prefix}tutor_quiz_attempt_answers answers |
| 664 | LEFT JOIN {$wpdb->prefix}tutor_quiz_questions question |
| 665 | ON answers.question_id = question.question_id |
| 666 | WHERE answers.quiz_attempt_id IN ({$ids_in}) |
| 667 | ORDER BY attempt_answer_id ASC;" |
| 668 | ); |
| 669 | //phpcs:enable WordPress.DB.PreparedSQL.InterpolatedNotPrepared |
| 670 | |
| 671 | if ( $add_index ) { |
| 672 | $new_array = array(); |
| 673 | |
| 674 | foreach ( $results as $result ) { |
| 675 | ! isset( $new_array[ $result->quiz_attempt_id ] ) ? $new_array[ $result->quiz_attempt_id ] = array() : 0; |
| 676 | $new_array[ $result->quiz_attempt_id ][] = $result; |
| 677 | } |
| 678 | |
| 679 | return $new_array; |
| 680 | } |
| 681 | |
| 682 | return $results; |
| 683 | } |
| 684 | |
| 685 | /** |
| 686 | * Get single answer by answer_id |
| 687 | * |
| 688 | * @since 1.0.0 |
| 689 | * |
| 690 | * @param array|init $answer_id answer id. |
| 691 | * |
| 692 | * @return array|null|object |
| 693 | */ |
| 694 | public static function get_answer_by_id( $answer_id ) { |
| 695 | global $wpdb; |
| 696 | |
| 697 | ! is_array( $answer_id ) ? $answer_id = array( $answer_id ) : 0; |
| 698 | |
| 699 | $answer_id = array_map( |
| 700 | function ( $id ) { |
| 701 | return "'" . esc_sql( $id ) . "'"; |
| 702 | }, |
| 703 | $answer_id |
| 704 | ); |
| 705 | |
| 706 | $in_ids_string = implode( ', ', $answer_id ); |
| 707 | |
| 708 | //phpcs:disable WordPress.DB.PreparedSQL.NotPrepared |
| 709 | $answer = $wpdb->get_results( |
| 710 | $wpdb->prepare( |
| 711 | "SELECT answer.*, |
| 712 | question.question_title, |
| 713 | question.question_type |
| 714 | FROM {$wpdb->prefix}tutor_quiz_question_answers answer |
| 715 | LEFT JOIN {$wpdb->prefix}tutor_quiz_questions question |
| 716 | ON answer.belongs_question_id = question.question_id |
| 717 | WHERE answer.answer_id IN (" . $in_ids_string . ') |
| 718 | AND 1 = %d; |
| 719 | ', |
| 720 | 1 |
| 721 | ) |
| 722 | ); |
| 723 | //phpcs:enable WordPress.DB.PreparedSQL.NotPrepared |
| 724 | |
| 725 | return $answer; |
| 726 | } |
| 727 | |
| 728 | /** |
| 729 | * Get quiz attempt timing |
| 730 | * |
| 731 | * @since 1.0.0 |
| 732 | * |
| 733 | * @param mixed $attempt_data attempt data. |
| 734 | * @return array |
| 735 | */ |
| 736 | public static function get_quiz_attempt_timing( $attempt_data ) { |
| 737 | $attempt_duration = ''; |
| 738 | $attempt_duration_taken = ''; |
| 739 | $attempt_info = @unserialize( $attempt_data->attempt_info ); |
| 740 | if ( is_array( $attempt_info ) ) { |
| 741 | // Allowed duration. |
| 742 | if ( isset( $attempt_info['time_limit'] ) ) { |
| 743 | //phpcs:ignore WordPress.WP.I18n.NonSingularStringLiteralText |
| 744 | $time_type = __( ucwords( tutor_utils()->array_get( 'time_limit.time_type', $attempt_info, 'minutes' ) ), 'tutor' ); |
| 745 | $time_value = tutor_utils()->array_get( 'time_limit.time_value', $attempt_info, 0 ); |
| 746 | $attempt_duration = $time_value . ' ' . $time_type; |
| 747 | } |
| 748 | |
| 749 | // Taken duration. |
| 750 | $seconds = strtotime( $attempt_data->attempt_ended_at ) - strtotime( $attempt_data->attempt_started_at ); |
| 751 | $attempt_duration_taken = tutor_utils()->seconds_to_time( $seconds ); |
| 752 | } |
| 753 | |
| 754 | return compact( 'attempt_duration', 'attempt_duration_taken' ); |
| 755 | } |
| 756 | |
| 757 | /** |
| 758 | * Check student is passed in a quiz or not. |
| 759 | * Quiz retry mode: student required at least one quiz passed in attempts |
| 760 | * |
| 761 | * @since 2.1.0 |
| 762 | * |
| 763 | * @param int $quiz_id quiz ID. |
| 764 | * @param int $user_id user ID. |
| 765 | * |
| 766 | * @return boolean |
| 767 | */ |
| 768 | public static function is_quiz_passed( $quiz_id, $user_id = 0 ) { |
| 769 | global $wpdb; |
| 770 | |
| 771 | $user_id = tutor_utils()->get_user_id( $user_id ); |
| 772 | $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 ) ); |
| 773 | $required_percentage = tutor_utils()->get_quiz_option( $quiz_id, 'passing_grade', 0 ); |
| 774 | |
| 775 | foreach ( $attempts as $attempt ) { |
| 776 | $earned_percentage = $attempt->earned_marks > 0 ? ( ( $attempt->earned_marks * 100 ) / $attempt->total_marks ) : 0; |
| 777 | if ( $earned_percentage >= $required_percentage ) { |
| 778 | return true; |
| 779 | } |
| 780 | } |
| 781 | |
| 782 | return false; |
| 783 | } |
| 784 | |
| 785 | /** |
| 786 | * Get all question type for a quiz |
| 787 | * |
| 788 | * @since 2.1.0 |
| 789 | * |
| 790 | * @param integer $quiz_id quiz ID. |
| 791 | * |
| 792 | * @return array |
| 793 | */ |
| 794 | public static function get_quiz_question_types( int $quiz_id ) { |
| 795 | global $wpdb; |
| 796 | $types = $wpdb->get_col( |
| 797 | $wpdb->prepare( "SELECT DISTINCT question_type FROM {$wpdb->prefix}tutor_quiz_questions WHERE quiz_id=%d", $quiz_id ) |
| 798 | ); |
| 799 | |
| 800 | return $types; |
| 801 | } |
| 802 | |
| 803 | /** |
| 804 | * Check a quiz attempt need manual review or not |
| 805 | * |
| 806 | * @since 2.1.0 |
| 807 | * |
| 808 | * @param int $quiz_id quiz ID. |
| 809 | * |
| 810 | * @return boolean |
| 811 | */ |
| 812 | public static function is_manual_review_required( $quiz_id ) { |
| 813 | $required = false; |
| 814 | $review_question_types = array( 'open_ended', 'short_answer' ); |
| 815 | $question_types = self::get_quiz_question_types( $quiz_id ); |
| 816 | |
| 817 | foreach ( $review_question_types as $type ) { |
| 818 | if ( in_array( $type, $question_types, true ) ) { |
| 819 | $required = true; |
| 820 | break; |
| 821 | } |
| 822 | } |
| 823 | |
| 824 | return $required; |
| 825 | } |
| 826 | |
| 827 | /** |
| 828 | * Get last or first quiz attempt |
| 829 | * |
| 830 | * @since 2.1.0 |
| 831 | * @since 2.1.3 user_id param added. |
| 832 | * |
| 833 | * @param integer $quiz_id quiz id to get attempt of. |
| 834 | * @param integer $user_id user ID who attempt the quiz. |
| 835 | * @param string $order ASC or DESC, default is DESC |
| 836 | * pass ASC to get first attempt. |
| 837 | * |
| 838 | * @return mixed object on success, null on failure |
| 839 | */ |
| 840 | public function get_first_or_last_attempt( int $quiz_id, int $user_id = 0, string $order = 'DESC' ) { |
| 841 | $attempt = QueryHelper::get_row( |
| 842 | $this->get_table(), |
| 843 | array( |
| 844 | 'quiz_id' => $quiz_id, |
| 845 | 'user_id' => tutor_utils()->get_user_id( $user_id ), |
| 846 | ), |
| 847 | 'attempt_id', |
| 848 | $order |
| 849 | ); |
| 850 | return $attempt; |
| 851 | } |
| 852 | |
| 853 | /** |
| 854 | * Get total number of quizzes by course id |
| 855 | * |
| 856 | * @since 2.2.0 |
| 857 | * |
| 858 | * @param int|array $course_id Course id or array of course ids. |
| 859 | * |
| 860 | * @return int |
| 861 | */ |
| 862 | public static function get_quiz_count_by_course( $course_id ) { |
| 863 | global $wpdb; |
| 864 | |
| 865 | $and_clause = is_array( $course_id ) && count( $course_id ) ? ' AND post_parent IN (' . QueryHelper::prepare_in_clause( $course_id ) . ')' : "AND post_parent = $course_id"; |
| 866 | |
| 867 | //phpcs:disable |
| 868 | $count = $wpdb->get_var( |
| 869 | $wpdb->prepare( |
| 870 | "SELECT |
| 871 | COUNT(ID) |
| 872 | FROM {$wpdb->posts} |
| 873 | WHERE post_parent IN |
| 874 | (SELECT |
| 875 | ID |
| 876 | FROM {$wpdb->posts} |
| 877 | WHERE post_type = %s |
| 878 | {$and_clause} |
| 879 | AND post_status = %s |
| 880 | ) |
| 881 | AND post_type = %s |
| 882 | AND post_status = %s", |
| 883 | 'topics', |
| 884 | 'publish', |
| 885 | 'tutor_quiz', |
| 886 | 'publish' |
| 887 | ) |
| 888 | ); |
| 889 | //phpcs:enable |
| 890 | return $count ? $count : 0; |
| 891 | } |
| 892 | |
| 893 | /** |
| 894 | * Get final quiz result depending on all attempts. |
| 895 | * |
| 896 | * @since 2.4.0 |
| 897 | * |
| 898 | * @param int $quiz_id quiz id. |
| 899 | * @param int $user_id user id. |
| 900 | * |
| 901 | * @return string pass, fail, pending |
| 902 | */ |
| 903 | public static function get_quiz_result( $quiz_id, $user_id = 0 ) { |
| 904 | global $wpdb; |
| 905 | |
| 906 | $all_pending = true; |
| 907 | $result = 'pending'; |
| 908 | |
| 909 | $user_id = tutor_utils()->get_user_id( $user_id ); |
| 910 | $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 ) ); |
| 911 | |
| 912 | $total_pending_attempt = (int) $wpdb->get_var( |
| 913 | $wpdb->prepare( |
| 914 | "SELECT COUNT(quiz_attempt_id) total_pending_attempt |
| 915 | FROM ( |
| 916 | SELECT qa.quiz_attempt_id, COUNT(*) AS total_pending |
| 917 | FROM {$wpdb->prefix}tutor_quiz_attempt_answers qa |
| 918 | WHERE qa.quiz_id = %d AND qa.user_id=%d AND qa.is_correct IS NULL |
| 919 | GROUP BY qa.quiz_attempt_id |
| 920 | ) a |
| 921 | ", |
| 922 | $quiz_id, |
| 923 | $user_id |
| 924 | ) |
| 925 | ); |
| 926 | |
| 927 | if ( count( $attempt_list ) !== $total_pending_attempt ) { |
| 928 | $all_pending = false; |
| 929 | } |
| 930 | |
| 931 | if ( false === $all_pending ) { |
| 932 | $required_percentage = tutor_utils()->get_quiz_option( $quiz_id, 'passing_grade', 0 ); |
| 933 | foreach ( $attempt_list as $attempt ) { |
| 934 | $earned_percentage = $attempt->earned_marks > 0 ? ( ( $attempt->earned_marks * 100 ) / $attempt->total_marks ) : 0; |
| 935 | if ( $earned_percentage >= $required_percentage ) { |
| 936 | // If at least one attempt passed then quiz passed. |
| 937 | $result = 'pass'; |
| 938 | break; |
| 939 | } else { |
| 940 | $result = 'fail'; |
| 941 | } |
| 942 | } |
| 943 | } |
| 944 | |
| 945 | return $result; |
| 946 | } |
| 947 | |
| 948 | /** |
| 949 | * Get quiz attempt details |
| 950 | * |
| 951 | * @since 2.6.1 |
| 952 | * |
| 953 | * @param integer $attempt_id attempt id. |
| 954 | * |
| 955 | * @return mixed |
| 956 | */ |
| 957 | public static function quiz_attempt_details( int $attempt_id ) { |
| 958 | global $wpdb; |
| 959 | |
| 960 | $table_quiz_attempt_answers = $wpdb->prefix . 'tutor_quiz_attempt_answers'; |
| 961 | $table_quiz_questions = $wpdb->prefix . 'tutor_quiz_questions'; |
| 962 | $table_quiz_attempts = $wpdb->prefix . 'tutor_quiz_attempts'; |
| 963 | $table_quiz_question_answers = $wpdb->prefix . 'tutor_quiz_question_answers'; |
| 964 | |
| 965 | $query = "SELECT |
| 966 | ques.question_id, |
| 967 | ques.question_title, |
| 968 | ques.question_type, |
| 969 | ( |
| 970 | SELECT |
| 971 | GROUP_CONCAT(answer_title) |
| 972 | FROM |
| 973 | {$table_quiz_question_answers} |
| 974 | WHERE |
| 975 | belongs_question_id = ques.question_id |
| 976 | AND is_correct = 1 |
| 977 | ) AS correct_answers, |
| 978 | |
| 979 | ( |
| 980 | |
| 981 | SELECT |
| 982 | |
| 983 | CASE |
| 984 | WHEN CHAR_LENGTH(att_ans.given_answer) = 1 AND att_ans.given_answer REGEXP '^[0-9]$' THEN |
| 985 | -- If given_answer is a single digit integer |
| 986 | ( |
| 987 | SELECT |
| 988 | answer_title |
| 989 | FROM |
| 990 | {$table_quiz_question_answers} |
| 991 | WHERE |
| 992 | answer_id = CAST(att_ans.given_answer AS UNSIGNED) |
| 993 | ) |
| 994 | WHEN CHAR_LENGTH(att_ans.given_answer) > 1 AND SUBSTRING(att_ans.given_answer, 1, 2) = 'a:' THEN |
| 995 | -- If given_answer is serialized array |
| 996 | ( |
| 997 | att_ans.given_answer |
| 998 | ) |
| 999 | ELSE |
| 1000 | -- If given_answer is a serialized string |
| 1001 | att_ans.given_answer |
| 1002 | END |
| 1003 | ) AS given_answer, |
| 1004 | att_ans.question_mark, |
| 1005 | att_ans.achieved_mark, |
| 1006 | att_ans.is_correct, |
| 1007 | ( |
| 1008 | SELECT |
| 1009 | attempt_info |
| 1010 | FROM {$table_quiz_attempts} |
| 1011 | WHERE attempt_id = {$attempt_id} |
| 1012 | LIMIT 1 |
| 1013 | ) AS attempt_info |
| 1014 | FROM |
| 1015 | {$table_quiz_attempt_answers} AS att_ans |
| 1016 | JOIN {$table_quiz_questions} AS ques ON ques.question_id = att_ans.question_id |
| 1017 | JOIN {$table_quiz_question_answers} AS ans ON ans.answer_id = att_ans.attempt_answer_id |
| 1018 | WHERE |
| 1019 | quiz_attempt_id = %d |
| 1020 | LIMIT |
| 1021 | 50 |
| 1022 | "; |
| 1023 | |
| 1024 | //phpcs:ignore |
| 1025 | $result = $wpdb->get_results( $wpdb->prepare( $query, $attempt_id ) ); |
| 1026 | |
| 1027 | // If array and count result then loop with each result and prepare given answer. |
| 1028 | if ( is_array( $result ) && count( $result ) ) { |
| 1029 | foreach ( $result as $key => $value ) { |
| 1030 | // Check if given answer is a serialized string. |
| 1031 | if ( is_serialized( $value->given_answer ) ) { |
| 1032 | $given_answers = tutor_utils()->get_answer_by_id( maybe_unserialize( $value->given_answer ) ); |
| 1033 | $result[ $key ]->given_answer = array_column( $given_answers, 'answer_title' ); |
| 1034 | } elseif ( is_numeric( $value->given_answer ) ) { |
| 1035 | $given_answers = tutor_utils()->get_answer_by_id( maybe_unserialize( $value->given_answer ) ); |
| 1036 | $result[ $key ]->given_answer = array_column( $given_answers, 'answer_title' ); |
| 1037 | } |
| 1038 | } |
| 1039 | } |
| 1040 | |
| 1041 | return $result; |
| 1042 | } |
| 1043 | |
| 1044 | /** |
| 1045 | * Get a question record. |
| 1046 | * |
| 1047 | * @since 3.0.0 |
| 1048 | * |
| 1049 | * @param int $question_id quiz question id. |
| 1050 | * |
| 1051 | * @return array|object|null|void |
| 1052 | */ |
| 1053 | public static function get_question( $question_id ) { |
| 1054 | global $wpdb; |
| 1055 | return $wpdb->get_row( $wpdb->prepare( "SELECT * FROM {$wpdb->prefix}tutor_quiz_questions WHERE question_id = %d", $question_id ) ); |
| 1056 | } |
| 1057 | |
| 1058 | /** |
| 1059 | * Get all answer's of a quiz question. |
| 1060 | * |
| 1061 | * @since 3.0.0 |
| 1062 | * |
| 1063 | * @param int $question_id question id. |
| 1064 | * @param string $question_type question type. |
| 1065 | * |
| 1066 | * @return array |
| 1067 | */ |
| 1068 | public static function get_question_answers( $question_id, $question_type = null ) { |
| 1069 | global $wpdb; |
| 1070 | |
| 1071 | $query = "SELECT * FROM {$wpdb->prefix}tutor_quiz_question_answers WHERE belongs_question_id = %d"; |
| 1072 | |
| 1073 | if ( $question_type ) { |
| 1074 | $query .= ' AND belongs_question_type = %s ORDER BY answer_order ASC'; |
| 1075 | //phpcs:ignore |
| 1076 | $answers = $wpdb->get_results( $wpdb->prepare( $query, $question_id, $question_type ) ); |
| 1077 | } else { |
| 1078 | $query .= ' ORDER BY answer_order ASC'; |
| 1079 | //phpcs:ignore |
| 1080 | $answers = $wpdb->get_results( $wpdb->prepare( $query, $question_id ) ); |
| 1081 | } |
| 1082 | |
| 1083 | foreach ( $answers as $answer ) { |
| 1084 | $answer->answer_title = stripslashes( $answer->answer_title ); |
| 1085 | if ( $answer->image_id ) { |
| 1086 | $answer->image_url = wp_get_attachment_url( $answer->image_id ); |
| 1087 | } |
| 1088 | } |
| 1089 | |
| 1090 | return $answers; |
| 1091 | } |
| 1092 | |
| 1093 | /** |
| 1094 | * Get next answer order SL no |
| 1095 | * |
| 1096 | * @since 3.0.0 |
| 1097 | * |
| 1098 | * @param int $question_id question id. |
| 1099 | * @param int $question_type question type. |
| 1100 | * |
| 1101 | * @return int |
| 1102 | */ |
| 1103 | public static function get_next_answer_order( $question_id, $question_type ) { |
| 1104 | global $wpdb; |
| 1105 | $max_id = (int) $wpdb->get_var( |
| 1106 | $wpdb->prepare( |
| 1107 | "SELECT MAX(answer_order) FROM {$wpdb->prefix}tutor_quiz_question_answers WHERE belongs_question_id = %d AND belongs_question_type = %s",//phpcs:ignore |
| 1108 | $question_id, |
| 1109 | $question_type |
| 1110 | ) |
| 1111 | ); |
| 1112 | |
| 1113 | return $max_id + 1; |
| 1114 | } |
| 1115 | |
| 1116 | /** |
| 1117 | * Get quiz details by quiz id. |
| 1118 | * |
| 1119 | * @since 3.0.0 |
| 1120 | * |
| 1121 | * @param int $quiz_id quiz id. |
| 1122 | * |
| 1123 | * @return object |
| 1124 | */ |
| 1125 | public static function get_quiz_details( $quiz_id ) { |
| 1126 | $quiz = get_post( $quiz_id ); |
| 1127 | $quiz->quiz_option = get_post_meta( $quiz_id, Quiz::META_QUIZ_OPTION, true ); |
| 1128 | $quiz->questions = tutor_utils()->get_questions_by_quiz( $quiz_id ); |
| 1129 | |
| 1130 | if ( ! is_array( $quiz->questions ) ) { |
| 1131 | $quiz->questions = array(); |
| 1132 | } |
| 1133 | |
| 1134 | foreach ( $quiz->questions as $question ) { |
| 1135 | $question->question_answers = self::get_question_answers( $question->question_id, $question->question_type ); |
| 1136 | if ( isset( $question->question_settings ) ) { |
| 1137 | $question->question_settings = maybe_unserialize( $question->question_settings ); |
| 1138 | } |
| 1139 | } |
| 1140 | |
| 1141 | return $quiz; |
| 1142 | } |
| 1143 | } |
| 1144 |