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