| 1 |
<?php |
| 2 |
/** |
| 3 |
* Class LP_Quiz_CURD. |
| 4 |
* |
| 5 |
* @author ThimPress |
| 6 |
* @package LearnPress/Classes/CURD |
| 7 |
* @since 3.0.0 |
| 8 |
*/ |
| 9 |
|
| 10 |
/** |
| 11 |
* Prevent loading this file directly |
| 12 |
*/ |
| 13 |
defined( 'ABSPATH' ) || exit(); |
| 14 |
|
| 15 |
if ( ! function_exists( 'LP_Quiz_CURD' ) ) { |
| 16 |
|
| 17 |
/** |
| 18 |
* Class LP_Quiz_CURD |
| 19 |
* |
| 20 |
* Class to manipulating quiz with database. |
| 21 |
*/ |
| 22 |
class LP_Quiz_CURD extends LP_Object_Data_CURD implements LP_Interface_CURD { |
| 23 |
|
| 24 |
/** |
| 25 |
* LP_Quiz_CURD constructor. |
| 26 |
*/ |
| 27 |
public function __construct() { |
| 28 |
$this->_error_messages = array( |
| 29 |
'QUIZ_NOT_EXISTS' => __( 'Quiz does not exist.', 'learnpress' ), |
| 30 |
); |
| 31 |
} |
| 32 |
|
| 33 |
/** |
| 34 |
* @param LP_Quiz $quiz |
| 35 |
* |
| 36 |
* @return LP_Quiz|mixed |
| 37 |
* @throws Exception |
| 38 |
*/ |
| 39 |
public function load( &$quiz ) { |
| 40 |
$id = $quiz->get_id(); |
| 41 |
if ( ! $id || learn_press_get_post_type( $id ) !== LP_QUIZ_CPT ) { |
| 42 |
|
| 43 |
throw new Exception( sprintf( __( 'Invalid quiz with ID "%d".', 'learnpress' ), $id ) ); |
| 44 |
} |
| 45 |
|
| 46 |
// LP_Helper_CURD::update_meta_cache( $quiz->get_id() ); |
| 47 |
|
| 48 |
$quiz->set_data_via_methods( |
| 49 |
array( |
| 50 |
// 'show_result' => get_post_meta( $quiz->get_id(), '_lp_show_result', true ), |
| 51 |
'passing_grade_type' => get_post_meta( $quiz->get_id(), '_lp_passing_grade_type', true ), |
| 52 |
'passing_grade' => get_post_meta( $quiz->get_id(), '_lp_passing_grade', true ), |
| 53 |
// 'show_check_answer' => get_post_meta( $quiz->get_id(), '_lp_show_check_answer', true ), |
| 54 |
// 'count_check_answer' => get_post_meta( $quiz->get_id(), '_lp_check_answer_count', true ), |
| 55 |
// 'show_hint' => get_post_meta( $quiz->get_id(), '_lp_show_hint', true ), |
| 56 |
// 'archive_history' => get_post_meta( $quiz->get_id(), '_lp_archive_history', true ), |
| 57 |
// 'count_hint' => get_post_meta( $quiz->get_id(), '_lp_hint_count', true ), |
| 58 |
'pagination' => get_post_meta( $quiz->get_id(), '_lp_pagination', true ), |
| 59 |
'review_questions' => get_post_meta( $quiz->get_id(), '_lp_review', true ), |
| 60 |
'show_correct_review' => get_post_meta( $quiz->get_id(), '_lp_show_correct_review', true ), |
| 61 |
'preview' => get_post_meta( $quiz->get_id(), '_lp_preview', true ), |
| 62 |
// 'minus_points' => get_post_meta( $quiz->get_id(), '_lp_minus_points', true ), |
| 63 |
'minus_skip_questions' => get_post_meta( $quiz->get_id(), '_lp_minus_skip_questions', true ), |
| 64 |
|
| 65 |
'instant_check' => get_post_meta( $quiz->get_id(), '_lp_instant_check', true ), |
| 66 |
'negative_marking' => get_post_meta( $quiz->get_id(), '_lp_negative_marking', true ), |
| 67 |
'retake_count' => get_post_meta( $quiz->get_id(), '_lp_retake_count', true ), |
| 68 |
) |
| 69 |
); |
| 70 |
|
| 71 |
return $quiz; |
| 72 |
} |
| 73 |
|
| 74 |
/** |
| 75 |
* Create quiz, with default meta. |
| 76 |
* |
| 77 |
* @param $args |
| 78 |
* |
| 79 |
* @return int|WP_Error |
| 80 |
*/ |
| 81 |
public function create( &$args ) { |
| 82 |
|
| 83 |
$args = wp_parse_args( |
| 84 |
$args, |
| 85 |
array( |
| 86 |
'id' => '', |
| 87 |
'status' => 'publish', |
| 88 |
'title' => __( 'New Quiz', 'learnpress' ), |
| 89 |
'content' => '', |
| 90 |
'author' => learn_press_get_current_user_id(), |
| 91 |
) |
| 92 |
); |
| 93 |
|
| 94 |
$quiz_id = wp_insert_post( |
| 95 |
array( |
| 96 |
'ID' => $args['id'], |
| 97 |
'post_type' => LP_QUIZ_CPT, |
| 98 |
'post_status' => $args['status'], |
| 99 |
'post_title' => $args['title'], |
| 100 |
'post_content' => $args['content'], |
| 101 |
'post_author' => $args['author'], |
| 102 |
) |
| 103 |
); |
| 104 |
|
| 105 |
if ( $quiz_id ) { |
| 106 |
// add default meta for new lesson |
| 107 |
$default_meta = LP_Quiz::get_default_meta(); |
| 108 |
|
| 109 |
if ( is_array( $default_meta ) ) { |
| 110 |
foreach ( $default_meta as $key => $value ) { |
| 111 |
update_post_meta( $quiz_id, '_lp_' . $key, $value ); |
| 112 |
} |
| 113 |
} |
| 114 |
} |
| 115 |
|
| 116 |
return $quiz_id; |
| 117 |
} |
| 118 |
|
| 119 |
public function update( &$quiz ) { |
| 120 |
// TODO: Implement update() method. |
| 121 |
} |
| 122 |
|
| 123 |
/** |
| 124 |
* Delete quiz. |
| 125 |
* |
| 126 |
* @since 3.0.0 |
| 127 |
* |
| 128 |
* @param object $quiz_id |
| 129 |
*/ |
| 130 |
public function delete( &$quiz_id ) { |
| 131 |
// course curd |
| 132 |
$curd = new LP_Course_CURD(); |
| 133 |
|
| 134 |
// allow hook |
| 135 |
do_action( 'learn-press/before-delete-quiz', $quiz_id ); |
| 136 |
|
| 137 |
// remove quiz from course items |
| 138 |
$curd->remove_item( $quiz_id ); |
| 139 |
// remove questions from quiz |
| 140 |
$this->remove_questions( $quiz_id, '', true ); |
| 141 |
} |
| 142 |
|
| 143 |
/** |
| 144 |
* Duplicate quiz. |
| 145 |
* |
| 146 |
* @since 3.0.0 |
| 147 |
* |
| 148 |
* @param $quiz_id_origin |
| 149 |
* @param array $args |
| 150 |
* |
| 151 |
* @return mixed|WP_Error |
| 152 |
*/ |
| 153 |
public function duplicate( &$quiz_id_origin, $args = array() ) { |
| 154 |
$quiz_id_new = 0; |
| 155 |
|
| 156 |
try { |
| 157 |
if ( ! $quiz_id_origin ) { |
| 158 |
return new WP_Error( 'lp/clone/quiz/id_null', 'Op! Quiz ID not found' ); |
| 159 |
} |
| 160 |
|
| 161 |
if ( learn_press_get_post_type( $quiz_id_origin ) != LP_QUIZ_CPT ) { |
| 162 |
return new WP_Error( 'lp/clone/quiz/type_invalid', 'Op! The quiz does not exist' ); |
| 163 |
} |
| 164 |
|
| 165 |
// Ensure that user can create quiz |
| 166 |
if ( ! current_user_can( 'edit_posts' ) ) { |
| 167 |
return new WP_Error( 'lp/clone/quiz/permission', 'Sorry! You have not permission to duplicate this quiz' ); |
| 168 |
} |
| 169 |
|
| 170 |
// Duplicate quiz |
| 171 |
$quiz_id_new = learn_press_duplicate_post( $quiz_id_origin, $args, true ); |
| 172 |
|
| 173 |
if ( ! $quiz_id_new || is_wp_error( $quiz_id_new ) ) { |
| 174 |
return new WP_Error( 'lp/clone/quiz/clone_error', 'Sorry! Failed to duplicate quiz!' ); |
| 175 |
} else { |
| 176 |
// duplicate questions. |
| 177 |
$this->duplicate_questions( $quiz_id_origin, $quiz_id_new ); |
| 178 |
|
| 179 |
do_action( 'learn-press/item/after-duplicate', $quiz_id_origin, $quiz_id_new, $args ); |
| 180 |
} |
| 181 |
} catch ( Throwable $e ) { |
| 182 |
error_log( $e->getMessage() ); |
| 183 |
} |
| 184 |
|
| 185 |
return $quiz_id_new; |
| 186 |
} |
| 187 |
|
| 188 |
/** |
| 189 |
* Duplicate questions. |
| 190 |
* |
| 191 |
* @param int $quiz_id_origin |
| 192 |
* @param int $quiz_id_new |
| 193 |
* |
| 194 |
* @return void |
| 195 |
*/ |
| 196 |
public function duplicate_questions( int $quiz_id_origin, int $quiz_id_new ) { |
| 197 |
$question_curd = new LP_Question_CURD(); |
| 198 |
|
| 199 |
try { |
| 200 |
$quiz_origin = learn_press_get_quiz( $quiz_id_origin ); |
| 201 |
if ( ! $quiz_origin ) { |
| 202 |
return; |
| 203 |
} |
| 204 |
|
| 205 |
$questions_origin = $quiz_origin->get_questions(); |
| 206 |
|
| 207 |
foreach ( $questions_origin as $question_id_origin ) { |
| 208 |
$can_clone = true; |
| 209 |
$args = compact( 'question_id_origin', 'quiz_origin', 'quiz_id_new' ); |
| 210 |
$can_clone = apply_filters( 'lp/quiz/question/can-clone', $can_clone, $args ); |
| 211 |
|
| 212 |
if ( ! $can_clone ) { |
| 213 |
continue; |
| 214 |
} |
| 215 |
|
| 216 |
// duplicate question |
| 217 |
$question_id_new = $question_curd->duplicate( $question_id_origin, array( 'post_status' => 'publish' ) ); |
| 218 |
|
| 219 |
if ( ! $question_id_new || is_wp_error( $question_id_new ) ) { |
| 220 |
continue; |
| 221 |
} |
| 222 |
|
| 223 |
// add duplicate question to new quiz |
| 224 |
$this->add_question( $quiz_id_new, $question_id_new ); |
| 225 |
} |
| 226 |
} catch ( Throwable $e ) { |
| 227 |
error_log( $e->getMessage() ); |
| 228 |
} |
| 229 |
} |
| 230 |
|
| 231 |
/** |
| 232 |
* @param LP_Quiz $quiz |
| 233 |
* |
| 234 |
* @depecated 4.1.7 |
| 235 |
*/ |
| 236 |
/*protected function _load_questions( &$quiz ) { |
| 237 |
$id = $quiz->get_id(); |
| 238 |
$questions = LP_Object_Cache::get( 'questions-' . $id, 'learn-press/quizzes' ); |
| 239 |
|
| 240 |
if ( false === $questions || $quiz->get_no_cache() ) { |
| 241 |
$this->load_questions( $quiz->get_id() ); |
| 242 |
} |
| 243 |
}*/ |
| 244 |
|
| 245 |
/** |
| 246 |
* Read question of a quiz from database |
| 247 |
* |
| 248 |
* @param int $quiz_id |
| 249 |
* @param string $context |
| 250 |
* |
| 251 |
* @return array|bool |
| 252 |
*/ |
| 253 |
/*public function read_questions( $quiz_id, $context = 'display' ) { |
| 254 |
$quiz = learn_press_get_quiz( $quiz_id ); |
| 255 |
|
| 256 |
if ( ! $quiz ) { |
| 257 |
return false; |
| 258 |
} |
| 259 |
|
| 260 |
return $quiz->get_question_ids( $context ); |
| 261 |
}*/ |
| 262 |
|
| 263 |
/** |
| 264 |
* Read all question ids of a quiz. |
| 265 |
* |
| 266 |
* @param int $quiz_id |
| 267 |
* @param string $context |
| 268 |
* |
| 269 |
* @return array |
| 270 |
* @throws Exception |
| 271 |
*/ |
| 272 |
public function read_question_ids( int $quiz_id = 0, string $context = 'display' ) :array { |
| 273 |
$quiz = learn_press_get_quiz( $quiz_id ); |
| 274 |
|
| 275 |
if ( ! $quiz ) { |
| 276 |
return array(); |
| 277 |
} |
| 278 |
|
| 279 |
$lp_question_db = LP_Question_DB::getInstance(); |
| 280 |
|
| 281 |
if ( $context === 'display' ) { |
| 282 |
$statuses = array( 'publish' ); |
| 283 |
} else { |
| 284 |
$statuses = array( 'publish', 'draft', 'auto-draft' ); |
| 285 |
} |
| 286 |
|
| 287 |
$filter = new LP_Question_Filter(); |
| 288 |
$filter->quiz_id = $quiz_id; |
| 289 |
$filter->statues = $statuses; |
| 290 |
|
| 291 |
return $lp_question_db->get_list_question_ids_of_quiz( $filter ); |
| 292 |
} |
| 293 |
|
| 294 |
/** |
| 295 |
* @depecated 4.1.7 |
| 296 |
*/ |
| 297 |
/*public function update_question_ids( $quiz_id ) { |
| 298 |
wp_cache_delete( 'quiz-' . $quiz_id, 'quiz-questions' ); |
| 299 |
|
| 300 |
$quiz = learn_press_get_quiz( $quiz_id ); |
| 301 |
|
| 302 |
if ( $quiz ) { |
| 303 |
$question_ids = $quiz->get_question_ids(); |
| 304 |
} else { |
| 305 |
$question_ids = array(); |
| 306 |
} |
| 307 |
|
| 308 |
update_post_meta( $quiz_id, '_questions', $question_ids ); |
| 309 |
update_post_meta( $quiz_id, '_question_count', sizeof( $question_ids ) ); |
| 310 |
}*/ |
| 311 |
|
| 312 |
/** |
| 313 |
* Get quiz ids that contains a question. |
| 314 |
* |
| 315 |
* @since 3.1.0 |
| 316 |
* |
| 317 |
* @param int $question_id |
| 318 |
* |
| 319 |
* @return array |
| 320 |
*/ |
| 321 |
public function get_quiz_by_question( $question_id ) { |
| 322 |
global $wpdb; |
| 323 |
$query = $wpdb->prepare( |
| 324 |
" |
| 325 |
SELECT ID |
| 326 |
FROM {$wpdb->posts} p |
| 327 |
INNER JOIN {$wpdb->learnpress_quiz_questions} qq ON qq.quiz_id = p.ID |
| 328 |
WHERE qq.question_id = %d |
| 329 |
", |
| 330 |
$question_id |
| 331 |
); |
| 332 |
|
| 333 |
return $wpdb->get_col( $query ); |
| 334 |
} |
| 335 |
|
| 336 |
public function load_questions( $quiz_id ) { |
| 337 |
|
| 338 |
global $wpdb; |
| 339 |
|
| 340 |
if ( is_array( $quiz_id ) ) { |
| 341 |
foreach ( $quiz_id as $q_id ) { |
| 342 |
$this->load_questions( $q_id ); |
| 343 |
} |
| 344 |
|
| 345 |
return; |
| 346 |
} |
| 347 |
|
| 348 |
$query = $wpdb->prepare( |
| 349 |
" |
| 350 |
SELECT ID, post_title, post_content, post_status, post_type, post_author, post_date, post_name |
| 351 |
FROM {$wpdb->posts} p |
| 352 |
INNER JOIN {$wpdb->prefix}learnpress_quiz_questions qq ON p.ID = qq.question_id |
| 353 |
WHERE qq.quiz_id = %d |
| 354 |
AND p.post_status = %s |
| 355 |
ORDER BY question_order, quiz_question_id ASC |
| 356 |
", |
| 357 |
$quiz_id, |
| 358 |
'publish' |
| 359 |
); |
| 360 |
|
| 361 |
$question_ids = array(); |
| 362 |
$results = $wpdb->get_results( $query ); |
| 363 |
|
| 364 |
if ( $results ) { |
| 365 |
foreach ( $results as $k => $v ) { |
| 366 |
settype( $v, 'object' ); |
| 367 |
wp_cache_set( $v->ID, $v, 'posts' ); |
| 368 |
|
| 369 |
$question_ids[] = $v->ID; |
| 370 |
} |
| 371 |
} |
| 372 |
|
| 373 |
LP_Object_Cache::set( 'questions-' . $quiz_id, $question_ids, 'learn-press/quizzes' ); |
| 374 |
|
| 375 |
// LP_Helper_CURD::cache_posts( $question_ids ); |
| 376 |
$question_factory = new LP_Question_CURD(); |
| 377 |
$question_factory->load_answer_options( $question_ids ); |
| 378 |
} |
| 379 |
|
| 380 |
/** |
| 381 |
* @param LP_Quiz $quiz |
| 382 |
* @depecated 4.1.6.4 |
| 383 |
*/ |
| 384 |
protected function _update_meta_cache( &$quiz ) { |
| 385 |
_deprecated_function( __FUNCTION__, '4.1.6.4' ); |
| 386 |
$meta_ids = LP_Object_Cache::get( 'questions-' . $quiz->get_id(), 'learn-press/quizzes' ); |
| 387 |
|
| 388 |
if ( false === $meta_ids ) { |
| 389 |
$meta_ids = array( $quiz->get_id() ); |
| 390 |
} else { |
| 391 |
$meta_ids[] = $quiz->get_id(); |
| 392 |
} |
| 393 |
// LP_Helper_CURD::update_meta_cache( $meta_ids ); |
| 394 |
} |
| 395 |
|
| 396 |
/** |
| 397 |
* @depecated 4.1.6.4 |
| 398 |
*/ |
| 399 |
protected function _load_question_answer_meta( $meta_ids ) { |
| 400 |
global $wpdb; |
| 401 |
|
| 402 |
$format = array_fill( 0, sizeof( $meta_ids ), '%d' ); |
| 403 |
$query = $wpdb->prepare( |
| 404 |
" |
| 405 |
SELECT * |
| 406 |
FROM {$wpdb->learnpress_question_answermeta} |
| 407 |
WHERE learnpress_question_answer_id IN(" . join( ',', $format ) . ') |
| 408 |
', |
| 409 |
$meta_ids |
| 410 |
); |
| 411 |
|
| 412 |
$metas = $wpdb->get_results( $query ); |
| 413 |
|
| 414 |
if ( $metas ) { |
| 415 |
foreach ( $metas as $meta ) { |
| 416 |
$key = $meta->meta_key; |
| 417 |
$option_key = $meta->learnpress_question_answer_id; |
| 418 |
if ( ! empty( $answer_options[ $option_key ] ) ) { |
| 419 |
if ( $key == 'checked' ) { |
| 420 |
$key = 'is_true'; |
| 421 |
} |
| 422 |
$answer_options[ $option_key ][ $key ] = $meta->meta_value; |
| 423 |
} |
| 424 |
} |
| 425 |
} |
| 426 |
} |
| 427 |
|
| 428 |
/** |
| 429 |
* Sort questions by order. |
| 430 |
* Check in an array of questions if there is a key 'order'. |
| 431 |
* |
| 432 |
* @param $questions |
| 433 |
* |
| 434 |
* @return mixed |
| 435 |
*/ |
| 436 |
protected function _maybe_sort_questions( &$questions ) { |
| 437 |
if ( ! $questions ) { |
| 438 |
return $questions; |
| 439 |
} |
| 440 |
|
| 441 |
$first = reset( $questions ); |
| 442 |
|
| 443 |
if ( empty( $first['order'] ) ) { |
| 444 |
return $questions; |
| 445 |
} |
| 446 |
|
| 447 |
uasort( $questions, array( $this, '_callback_sort_questions' ) ); |
| 448 |
|
| 449 |
return $questions; |
| 450 |
} |
| 451 |
|
| 452 |
public function _callback_sort_questions( $a, $b ) { |
| 453 |
return $a['order'] > $b['order']; |
| 454 |
} |
| 455 |
|
| 456 |
/** |
| 457 |
* Reorder question by indexed number. |
| 458 |
* |
| 459 |
* @param LP_Quiz|WP_Post|int $the_quiz |
| 460 |
* @param mixed $questions |
| 461 |
* |
| 462 |
* @return mixed |
| 463 |
*/ |
| 464 |
public function reorder_questions( $the_quiz, $questions = false ) { |
| 465 |
global $wpdb; |
| 466 |
|
| 467 |
$the_quiz = learn_press_get_quiz( $the_quiz ); |
| 468 |
|
| 469 |
if ( ! $the_quiz ) { |
| 470 |
return false; |
| 471 |
} |
| 472 |
|
| 473 |
if ( false == $questions ) { |
| 474 |
$query = $wpdb->prepare( |
| 475 |
" |
| 476 |
SELECT quiz_question_id as id |
| 477 |
FROM {$wpdb->prefix}learnpress_quiz_questions |
| 478 |
WHERE quiz_id = %d |
| 479 |
ORDER BY question_order ASC |
| 480 |
", |
| 481 |
$the_quiz->get_id() |
| 482 |
); |
| 483 |
|
| 484 |
$rows = $wpdb->get_results( $query ); |
| 485 |
|
| 486 |
if ( $rows ) { |
| 487 |
$update = array(); |
| 488 |
$ids = wp_list_pluck( $rows, 'id' ); |
| 489 |
$format = array_fill( 0, sizeof( $ids ), '%d' ); |
| 490 |
|
| 491 |
foreach ( $rows as $order => $row ) { |
| 492 |
$update[] = $wpdb->prepare( 'WHEN quiz_question_id = %d THEN %d', $row->id, $order + 1 ); |
| 493 |
} |
| 494 |
|
| 495 |
$query = $wpdb->prepare( |
| 496 |
" |
| 497 |
UPDATE {$wpdb->prefix}learnpress_quiz_questions |
| 498 |
SET question_order = CASE |
| 499 |
" . join( "\n", $update ) . ' |
| 500 |
ELSE question_order END |
| 501 |
WHERE quiz_question_id IN(' . join( ',', $format ) . ') |
| 502 |
', |
| 503 |
$ids |
| 504 |
); |
| 505 |
|
| 506 |
return $wpdb->query( $query ); |
| 507 |
} |
| 508 |
} else { |
| 509 |
$query = " |
| 510 |
UPDATE {$wpdb->learnpress_quiz_questions} |
| 511 |
SET question_order = CASE |
| 512 |
"; |
| 513 |
for ( $order = 0, $n = sizeof( $questions ); $order < $n; $order ++ ) { |
| 514 |
$query .= $wpdb->prepare( 'WHEN question_id = %d THEN %d', $questions[ $order ], $order + 1 ) . "\n"; |
| 515 |
} |
| 516 |
$query .= sprintf( 'ELSE question_order END WHERE quiz_id = %d', $the_quiz->get_id() ); |
| 517 |
|
| 518 |
return $wpdb->query( $query ); |
| 519 |
} |
| 520 |
|
| 521 |
return false; |
| 522 |
} |
| 523 |
|
| 524 |
|
| 525 |
/** |
| 526 |
* Get all questions in a quiz |
| 527 |
* |
| 528 |
* @param LP_Quiz $the_quiz |
| 529 |
* |
| 530 |
* @return array|mixed |
| 531 |
*/ |
| 532 |
public function get_questions( $the_quiz ) { |
| 533 |
$the_quiz = learn_press_get_quiz( $the_quiz ); |
| 534 |
|
| 535 |
if ( ! $the_quiz ) { |
| 536 |
return $this->get_error( 'QUIZ_NOT_EXISTS' ); |
| 537 |
} |
| 538 |
|
| 539 |
return LP_Object_Cache::get( 'questions-' . $the_quiz->get_id(), 'learn-press/quizzes' ); |
| 540 |
} |
| 541 |
|
| 542 |
/** |
| 543 |
* Add existing question into quiz. |
| 544 |
* |
| 545 |
* @param LP_Quiz|int $the_quiz |
| 546 |
* @param $question_id |
| 547 |
* @param array $args |
| 548 |
* |
| 549 |
* @return mixed false on failed |
| 550 |
*/ |
| 551 |
public function add_question( $the_quiz, $question_id, $args = array() ) { |
| 552 |
$the_quiz = learn_press_get_quiz( $the_quiz ); |
| 553 |
|
| 554 |
if ( ! $the_quiz ) { |
| 555 |
return $this->get_error( 'QUIZ_NOT_EXISTS' ); |
| 556 |
} |
| 557 |
|
| 558 |
$question = learn_press_get_question( $question_id ); |
| 559 |
|
| 560 |
if ( ! $question ) { |
| 561 |
return false; |
| 562 |
} |
| 563 |
|
| 564 |
if ( $this->is_exists_question( $the_quiz->get_id(), $question_id ) ) { |
| 565 |
return false; |
| 566 |
} |
| 567 |
|
| 568 |
// list exist quiz question |
| 569 |
//$list_questions = $this->get_questions( $the_quiz ); |
| 570 |
// add new question and set to cache |
| 571 |
//$list_questions[ $question_id ] = strval( $question_id ); |
| 572 |
//LP_Object_Cache::set( 'questions-' . $the_quiz->get_id(), $list_questions, 'learn-press/quizzes' ); |
| 573 |
|
| 574 |
global $wpdb; |
| 575 |
|
| 576 |
$id = $the_quiz->get_id(); |
| 577 |
$args = wp_parse_args( $args, array( 'order' => - 1 ) ); |
| 578 |
|
| 579 |
if ( $args['order'] >= 0 ) { |
| 580 |
$query = $wpdb->prepare( |
| 581 |
" |
| 582 |
UPDATE {$wpdb->prefix}learnpress_quiz_questions |
| 583 |
SET question_order = question_order + 1 |
| 584 |
WHERE quiz_id = %d AND question_order >= %d |
| 585 |
", |
| 586 |
$id, |
| 587 |
$args['order'] |
| 588 |
); |
| 589 |
$wpdb->get_results( $query ); |
| 590 |
} else { |
| 591 |
$query = $wpdb->prepare( |
| 592 |
" |
| 593 |
SELECT max(question_order) + 1 as ordering |
| 594 |
FROM {$wpdb->prefix}learnpress_quiz_questions |
| 595 |
WHERE quiz_id = %d |
| 596 |
", |
| 597 |
$id |
| 598 |
); |
| 599 |
|
| 600 |
$order = $wpdb->get_var( $query ); |
| 601 |
|
| 602 |
if ( ! $order ) { |
| 603 |
$order = 1; |
| 604 |
} |
| 605 |
|
| 606 |
$args['order'] = $order; |
| 607 |
} |
| 608 |
|
| 609 |
$inserted = $wpdb->insert( |
| 610 |
$wpdb->prefix . 'learnpress_quiz_questions', |
| 611 |
array( |
| 612 |
'quiz_id' => $id, |
| 613 |
'question_id' => $question_id, |
| 614 |
'question_order' => $args['order'], |
| 615 |
), |
| 616 |
array( '%d', '%d', '%d' ) |
| 617 |
); |
| 618 |
|
| 619 |
$return = $inserted ? $wpdb->insert_id : $inserted; |
| 620 |
|
| 621 |
do_action( 'learn-press/quiz-added-question', $inserted, $question_id, $the_quiz->get_id() ); |
| 622 |
|
| 623 |
return $return; |
| 624 |
} |
| 625 |
|
| 626 |
/** |
| 627 |
* Check if a question (or batch of questions) is already added to quiz. |
| 628 |
* |
| 629 |
* @param int $the_id |
| 630 |
* @param int|array $ids |
| 631 |
* |
| 632 |
* @return array|bool|null|object |
| 633 |
*/ |
| 634 |
public function is_exists_question( $the_id, $ids ) { |
| 635 |
global $wpdb; |
| 636 |
|
| 637 |
settype( $ids, 'array' ); |
| 638 |
$format = array_fill( 0, sizeof( $ids ), '%d' ); |
| 639 |
|
| 640 |
$questions_ids = implode( ', ', $ids ); |
| 641 |
|
| 642 |
$query = $wpdb->prepare( |
| 643 |
" |
| 644 |
SELECT quiz_question_id |
| 645 |
FROM {$wpdb->learnpress_quiz_questions} |
| 646 |
WHERE question_id IN( " . join( ',', $format ) . ' ) |
| 647 |
AND quiz_id = %d |
| 648 |
', |
| 649 |
$questions_ids, |
| 650 |
$the_id |
| 651 |
); |
| 652 |
|
| 653 |
$results = $wpdb->get_results( $query ); |
| 654 |
|
| 655 |
if ( $results ) { |
| 656 |
return $results; |
| 657 |
} |
| 658 |
|
| 659 |
return false; |
| 660 |
} |
| 661 |
|
| 662 |
/** |
| 663 |
* Update order question in quiz. |
| 664 |
* |
| 665 |
* @param $order |
| 666 |
* |
| 667 |
* @return false|int |
| 668 |
*/ |
| 669 |
public function sort_questions( $order ) { |
| 670 |
global $wpdb; |
| 671 |
|
| 672 |
foreach ( $order as $index => $question_id ) { |
| 673 |
$update = $wpdb->update( |
| 674 |
$wpdb->learnpress_quiz_questions, |
| 675 |
array( 'question_order' => $index + 1 ), |
| 676 |
array( 'question_id' => $question_id ), |
| 677 |
array( '%d' ), |
| 678 |
array( '%d' ) |
| 679 |
); |
| 680 |
|
| 681 |
if ( $update === false ) { |
| 682 |
return false; |
| 683 |
} |
| 684 |
} |
| 685 |
|
| 686 |
return true; |
| 687 |
} |
| 688 |
|
| 689 |
/** |
| 690 |
* Remove question from quiz. |
| 691 |
* |
| 692 |
* @since 3.0.0 |
| 693 |
* |
| 694 |
* @param $quiz_id |
| 695 |
* @param $question_id |
| 696 |
* @param bool $force | remove all questions from quiz |
| 697 |
* |
| 698 |
* @return bool|false|int|WP_Error |
| 699 |
*/ |
| 700 |
public function remove_questions( $quiz_id, $question_id, $force = false ) { |
| 701 |
$quiz = learn_press_get_quiz( $quiz_id ); |
| 702 |
|
| 703 |
if ( ! $quiz ) { |
| 704 |
return $this->get_error( 'QUIZ_NOT_EXISTS' ); |
| 705 |
} |
| 706 |
|
| 707 |
global $wpdb; |
| 708 |
|
| 709 |
if ( $force ) { |
| 710 |
// remove all questions from quiz |
| 711 |
$delete = $wpdb->delete( |
| 712 |
$wpdb->prefix . 'learnpress_quiz_questions', |
| 713 |
array( 'quiz_id' => $quiz_id ), |
| 714 |
array( '%d' ) |
| 715 |
); |
| 716 |
} else { |
| 717 |
do_action( 'learn-press/delete-quiz-question', $question_id, $quiz_id ); |
| 718 |
|
| 719 |
// remove question from quiz |
| 720 |
$delete = $wpdb->delete( |
| 721 |
$wpdb->prefix . 'learnpress_quiz_questions', |
| 722 |
array( |
| 723 |
'quiz_id' => $quiz_id, |
| 724 |
'question_id' => $question_id, |
| 725 |
), |
| 726 |
array( '%d', '%d' ) |
| 727 |
); |
| 728 |
|
| 729 |
do_action( 'learn-press/deleted-quiz-question', $question_id, $quiz_id, $delete ); |
| 730 |
|
| 731 |
// reorder questions |
| 732 |
$this->reorder_questions( $quiz ); |
| 733 |
} |
| 734 |
|
| 735 |
// increment quiz questions |
| 736 |
learn_press_reset_auto_increment( 'learnpress_quiz_questions' ); |
| 737 |
|
| 738 |
return $delete; |
| 739 |
} |
| 740 |
|
| 741 |
/** |
| 742 |
* Update order quiz question answers. |
| 743 |
* |
| 744 |
* @since 3.0.0 |
| 745 |
* |
| 746 |
* @param $answers |
| 747 |
* |
| 748 |
* @return array |
| 749 |
*/ |
| 750 |
public function sort_question_answers( $answers ) { |
| 751 |
global $wpdb; |
| 752 |
|
| 753 |
$orders = array(); |
| 754 |
|
| 755 |
foreach ( $answers as $index => $answer_id ) { |
| 756 |
$order = $index + 1; |
| 757 |
|
| 758 |
$orders[ $answer_id ] = $order; |
| 759 |
|
| 760 |
$wpdb->update( |
| 761 |
$wpdb->learnpress_question_answers, |
| 762 |
array( 'order' => $order ), |
| 763 |
array( 'question_answer_id' => $answer_id ) |
| 764 |
); |
| 765 |
} |
| 766 |
|
| 767 |
return $orders; |
| 768 |
} |
| 769 |
|
| 770 |
public function add_meta( &$object, $meta ) { |
| 771 |
// TODO: Implement add_meta() method. |
| 772 |
} |
| 773 |
|
| 774 |
public function delete_meta( &$object, $meta ) { |
| 775 |
// TODO: Implement delete_meta() method. |
| 776 |
} |
| 777 |
|
| 778 |
public function read_meta( &$object ) { |
| 779 |
// TODO: Implement read_meta() method. |
| 780 |
} |
| 781 |
|
| 782 |
/** |
| 783 |
* @param $object |
| 784 |
* @param $meta |
| 785 |
* |
| 786 |
* @return mixed |
| 787 |
*/ |
| 788 |
public function update_meta( &$object, $meta ) { |
| 789 |
return learn_press_update_user_item_meta( $object->get_user_item_id(), $meta->meta_key, $meta->meta_value ); |
| 790 |
} |
| 791 |
} |
| 792 |
} |
| 793 |
|
