CourseModel.php
3 years ago
LessonModel.php
3 years ago
QuizModel.php
3 years ago
WithdrawModel.php
3 years ago
CourseModel.php
582 lines
| 1 | <?php |
| 2 | /** |
| 3 | * Course Model |
| 4 | * |
| 5 | * @package Tutor\Models |
| 6 | * @author Themeum <support@themeum.com> |
| 7 | * @link https://themeum.com |
| 8 | * @since 2.0.6 |
| 9 | */ |
| 10 | |
| 11 | namespace Tutor\Models; |
| 12 | |
| 13 | use Tutor\Helpers\QueryHelper; |
| 14 | |
| 15 | /** |
| 16 | * CourseModel Class |
| 17 | * |
| 18 | * @since 2.0.6 |
| 19 | */ |
| 20 | class CourseModel { |
| 21 | /** |
| 22 | * WordPress course type name |
| 23 | * |
| 24 | * @var string |
| 25 | */ |
| 26 | const POST_TYPE = 'courses'; |
| 27 | |
| 28 | const STATUS_PUBLISH = 'publish'; |
| 29 | const STATUS_DRAFT = 'draft'; |
| 30 | const STATUS_AUTO_DRAFT = 'auto-draft'; |
| 31 | const STATUS_PENDING = 'pending'; |
| 32 | |
| 33 | /** |
| 34 | * Course mapped with the product using this meta key |
| 35 | * |
| 36 | * @var string |
| 37 | */ |
| 38 | const WC_PRODUCT_META_KEY = '_tutor_course_product_id'; |
| 39 | |
| 40 | /** |
| 41 | * Course attachment/downloadable resources meta key |
| 42 | * |
| 43 | * @var string |
| 44 | */ |
| 45 | const ATTACHMENT_META_KEY = '_tutor_attachments'; |
| 46 | |
| 47 | /** |
| 48 | * Course benefits meta key |
| 49 | * |
| 50 | * @var string |
| 51 | */ |
| 52 | const BENEFITS_META_KEY = '_tutor_course_benefits'; |
| 53 | |
| 54 | /** |
| 55 | * Course record count |
| 56 | * |
| 57 | * @since 2.0.7 |
| 58 | * |
| 59 | * @param string $status course status. |
| 60 | * @return int |
| 61 | */ |
| 62 | public static function count( $status = self::STATUS_PUBLISH ) { |
| 63 | $count_obj = wp_count_posts( self::POST_TYPE ); |
| 64 | if ( 'all' === $status ) { |
| 65 | return array_sum( (array) $count_obj ); |
| 66 | } |
| 67 | |
| 68 | return (int) $count_obj->{$status}; |
| 69 | } |
| 70 | |
| 71 | /** |
| 72 | * Get courses |
| 73 | * |
| 74 | * @since 1.0.0 |
| 75 | * |
| 76 | * @param array $excludes exclude course ids. |
| 77 | * @param array $post_status post status array. |
| 78 | * |
| 79 | * @return array|null|object |
| 80 | */ |
| 81 | public static function get_courses( $excludes = array(), $post_status = array( 'publish' ) ) { |
| 82 | global $wpdb; |
| 83 | |
| 84 | $excludes = (array) $excludes; |
| 85 | $exclude_query = ''; |
| 86 | |
| 87 | if ( count( $excludes ) ) { |
| 88 | $exclude_query = implode( "','", $excludes ); |
| 89 | } |
| 90 | |
| 91 | $post_status = array_map( |
| 92 | function ( $element ) { |
| 93 | return "'" . $element . "'"; |
| 94 | }, |
| 95 | $post_status |
| 96 | ); |
| 97 | |
| 98 | $post_status = implode( ',', $post_status ); |
| 99 | $course_post_type = tutor()->course_post_type; |
| 100 | |
| 101 | //phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared |
| 102 | $query = $wpdb->get_results( |
| 103 | $wpdb->prepare( |
| 104 | "SELECT ID, |
| 105 | post_author, |
| 106 | post_title, |
| 107 | post_name, |
| 108 | post_status, |
| 109 | menu_order |
| 110 | FROM {$wpdb->posts} |
| 111 | WHERE post_status IN ({$post_status}) |
| 112 | AND ID NOT IN('$exclude_query') |
| 113 | AND post_type = %s; |
| 114 | ", |
| 115 | $course_post_type |
| 116 | ) |
| 117 | ); |
| 118 | //phpcs:enable WordPress.DB.PreparedSQL.InterpolatedNotPrepared |
| 119 | |
| 120 | return $query; |
| 121 | } |
| 122 | |
| 123 | /** |
| 124 | * Get course count by instructor |
| 125 | * |
| 126 | * @since 1.0.0 |
| 127 | * |
| 128 | * @param $instructor_id |
| 129 | * |
| 130 | * @return null|string |
| 131 | */ |
| 132 | public static function get_course_count_by_instructor( $instructor_id ) { |
| 133 | global $wpdb; |
| 134 | |
| 135 | $course_post_type = tutor()->course_post_type; |
| 136 | |
| 137 | $count = $wpdb->get_var( |
| 138 | $wpdb->prepare( |
| 139 | "SELECT COUNT(ID) |
| 140 | FROM {$wpdb->posts} |
| 141 | INNER JOIN {$wpdb->usermeta} |
| 142 | ON user_id = %d |
| 143 | AND meta_key = %s |
| 144 | AND meta_value = ID |
| 145 | WHERE post_status = %s |
| 146 | AND post_type = %s; |
| 147 | ", |
| 148 | $instructor_id, |
| 149 | '_tutor_instructor_course_id', |
| 150 | 'publish', |
| 151 | $course_post_type |
| 152 | ) |
| 153 | ); |
| 154 | |
| 155 | return $count; |
| 156 | } |
| 157 | |
| 158 | /** |
| 159 | * Get course by quiz |
| 160 | * |
| 161 | * @since 1.0.0 |
| 162 | * |
| 163 | * @param $quiz_id quiz id. |
| 164 | * |
| 165 | * @return array|bool|null|object|void |
| 166 | */ |
| 167 | public static function get_course_by_quiz( $quiz_id ) { |
| 168 | $quiz_id = tutils()->get_post_id( $quiz_id ); |
| 169 | $post = get_post( $quiz_id ); |
| 170 | |
| 171 | if ( $post ) { |
| 172 | $course = get_post( $post->post_parent ); |
| 173 | if ( $course ) { |
| 174 | if ( $course->post_type !== tutor()->course_post_type ) { |
| 175 | $course = get_post( $course->post_parent ); |
| 176 | } |
| 177 | return $course; |
| 178 | } |
| 179 | } |
| 180 | |
| 181 | return false; |
| 182 | } |
| 183 | |
| 184 | /** |
| 185 | * Get courses by a instructor |
| 186 | * |
| 187 | * @since 1.0.0 |
| 188 | * |
| 189 | * @param integer $instructor_id |
| 190 | * @param array|string $post_status |
| 191 | * @param integer $offset |
| 192 | * @param integer $limit |
| 193 | * @param boolean $count_only |
| 194 | * |
| 195 | * @return array|null|object |
| 196 | */ |
| 197 | public static function get_courses_by_instructor( $instructor_id = 0, $post_status = array( 'publish' ), int $offset = 0, int $limit = PHP_INT_MAX, $count_only = false ) { |
| 198 | global $wpdb; |
| 199 | $offset = sanitize_text_field( $offset ); |
| 200 | $limit = sanitize_text_field( $limit ); |
| 201 | $instructor_id = tutils()->get_user_id( $instructor_id ); |
| 202 | $course_post_type = tutor()->course_post_type; |
| 203 | |
| 204 | if ( empty( $post_status ) || $post_status == 'any' ) { |
| 205 | $where_post_status = ''; |
| 206 | } else { |
| 207 | ! is_array( $post_status ) ? $post_status = array( $post_status ) : 0; |
| 208 | $statuses = "'" . implode( "','", $post_status ) . "'"; |
| 209 | $where_post_status = "AND $wpdb->posts.post_status IN({$statuses}) "; |
| 210 | } |
| 211 | |
| 212 | $select_col = $count_only ? " COUNT(DISTINCT $wpdb->posts.ID) " : " $wpdb->posts.* "; |
| 213 | $limit_offset = $count_only ? '' : " LIMIT $offset, $limit "; |
| 214 | |
| 215 | $query = $wpdb->prepare( |
| 216 | "SELECT $select_col |
| 217 | FROM $wpdb->posts |
| 218 | LEFT JOIN {$wpdb->usermeta} |
| 219 | ON $wpdb->usermeta.user_id = %d |
| 220 | AND $wpdb->usermeta.meta_key = %s |
| 221 | AND $wpdb->usermeta.meta_value = $wpdb->posts.ID |
| 222 | WHERE 1 = 1 {$where_post_status} |
| 223 | AND $wpdb->posts.post_type = %s |
| 224 | AND ($wpdb->posts.post_author = %d OR $wpdb->usermeta.user_id = %d) |
| 225 | ORDER BY $wpdb->posts.post_date DESC $limit_offset", |
| 226 | $instructor_id, |
| 227 | '_tutor_instructor_course_id', |
| 228 | $course_post_type, |
| 229 | $instructor_id, |
| 230 | $instructor_id |
| 231 | ); |
| 232 | |
| 233 | return $count_only ? $wpdb->get_var( $query ) : $wpdb->get_results( $query, OBJECT ); |
| 234 | } |
| 235 | |
| 236 | /** |
| 237 | * Get courses for instructors |
| 238 | * |
| 239 | * @since 1.0.0 |
| 240 | * |
| 241 | * @param int $instructor_id Instructor ID. |
| 242 | * @return array|null|object |
| 243 | */ |
| 244 | public function get_courses_for_instructors( $instructor_id = 0 ) { |
| 245 | $instructor_id = tutor_utils()->get_user_id( $instructor_id ); |
| 246 | $course_post_type = tutor()->course_post_type; |
| 247 | |
| 248 | $courses = get_posts( |
| 249 | array( |
| 250 | 'post_type' => $course_post_type, |
| 251 | 'author' => $instructor_id, |
| 252 | 'post_status' => array( 'publish', 'pending' ), |
| 253 | 'posts_per_page' => 5, |
| 254 | ) |
| 255 | ); |
| 256 | |
| 257 | return $courses; |
| 258 | } |
| 259 | |
| 260 | /** |
| 261 | * Check a user is main instructor of a course |
| 262 | * |
| 263 | * @since 2.1.6 |
| 264 | * |
| 265 | * @param integer $course_id course id. |
| 266 | * @param integer $user_id instructor id ( optional ) default: current user id. |
| 267 | * |
| 268 | * @return boolean |
| 269 | */ |
| 270 | public static function is_main_instructor( $course_id, $user_id = 0 ) { |
| 271 | $course = get_post( $course_id ); |
| 272 | $user_id = tutor_utils()->get_user_id( $user_id ); |
| 273 | |
| 274 | if ( ! $course || self::POST_TYPE !== $course->post_type || $user_id !== (int) $course->post_author ) { |
| 275 | return false; |
| 276 | } |
| 277 | |
| 278 | return true; |
| 279 | } |
| 280 | |
| 281 | /** |
| 282 | * Mark the course as completed |
| 283 | * |
| 284 | * @since 2.0.7 |
| 285 | * |
| 286 | * @param int $course_id course id which is completed. |
| 287 | * @param int $user_id student id who completed the course. |
| 288 | * |
| 289 | * @return bool |
| 290 | */ |
| 291 | public static function mark_course_as_completed( $course_id, $user_id ) { |
| 292 | if ( ! $course_id || ! $user_id ) { |
| 293 | return false; |
| 294 | } |
| 295 | |
| 296 | do_action( 'tutor_course_complete_before', $course_id ); |
| 297 | |
| 298 | /** |
| 299 | * Marking course completed at Comment. |
| 300 | */ |
| 301 | global $wpdb; |
| 302 | |
| 303 | $date = date( 'Y-m-d H:i:s', tutor_time() ); |
| 304 | |
| 305 | // Making sure that, hash is unique. |
| 306 | do { |
| 307 | $hash = substr( md5( wp_generate_password( 32 ) . $date . $course_id . $user_id ), 0, 16 ); |
| 308 | $has_hash = (int) $wpdb->get_var( |
| 309 | $wpdb->prepare( |
| 310 | "SELECT COUNT(comment_ID) from {$wpdb->comments} |
| 311 | WHERE comment_agent = 'TutorLMSPlugin' AND comment_type = 'course_completed' AND comment_content = %s ", |
| 312 | $hash |
| 313 | ) |
| 314 | ); |
| 315 | |
| 316 | } while ( $has_hash > 0 ); |
| 317 | |
| 318 | $data = array( |
| 319 | 'comment_post_ID' => $course_id, |
| 320 | 'comment_author' => $user_id, |
| 321 | 'comment_date' => $date, |
| 322 | 'comment_date_gmt' => get_gmt_from_date( $date ), |
| 323 | 'comment_content' => $hash, // Identification Hash. |
| 324 | 'comment_approved' => 'approved', |
| 325 | 'comment_agent' => 'TutorLMSPlugin', |
| 326 | 'comment_type' => 'course_completed', |
| 327 | 'user_id' => $user_id, |
| 328 | ); |
| 329 | |
| 330 | $wpdb->insert( $wpdb->comments, $data ); |
| 331 | |
| 332 | do_action( 'tutor_course_complete_after', $course_id, $user_id ); |
| 333 | |
| 334 | return true; |
| 335 | } |
| 336 | |
| 337 | /** |
| 338 | * Delete a course by ID |
| 339 | * |
| 340 | * @since 2.0.9 |
| 341 | * |
| 342 | * @param int $post_id course id that need to delete. |
| 343 | * @return bool |
| 344 | */ |
| 345 | public static function delete_course( $post_id ) { |
| 346 | if ( get_post_type( $post_id ) !== tutor()->course_post_type ) { |
| 347 | return false; |
| 348 | } |
| 349 | |
| 350 | wp_delete_post( $post_id, true ); |
| 351 | return true; |
| 352 | } |
| 353 | |
| 354 | /** |
| 355 | * Get post ids by post type and parent_id |
| 356 | * |
| 357 | * @since 1.6.6 |
| 358 | * |
| 359 | * @param string $post_type post type. |
| 360 | * @param integer $post_parent post parent ID. |
| 361 | * |
| 362 | * @return array |
| 363 | */ |
| 364 | private function get_post_ids( $post_type, $post_parent ) { |
| 365 | $args = array( |
| 366 | 'fields' => 'ids', |
| 367 | 'post_type' => $post_type, |
| 368 | 'post_parent' => $post_parent, |
| 369 | 'post_status' => 'any', |
| 370 | 'posts_per_page' => -1, |
| 371 | ); |
| 372 | return get_posts( $args ); |
| 373 | } |
| 374 | |
| 375 | /** |
| 376 | * Delete course data when permanently deleting a course. |
| 377 | * |
| 378 | * @since 1.6.6 |
| 379 | * @since 2.0.9 updated |
| 380 | * |
| 381 | * @param integer $post_id post ID. |
| 382 | * @return bool |
| 383 | */ |
| 384 | public function delete_course_data( $post_id ) { |
| 385 | $course_post_type = tutor()->course_post_type; |
| 386 | if ( get_post_type( $post_id ) !== $course_post_type ) { |
| 387 | return false; |
| 388 | } |
| 389 | |
| 390 | global $wpdb; |
| 391 | |
| 392 | $lesson_post_type = tutor()->lesson_post_type; |
| 393 | $assignment_post_type = tutor()->assignment_post_type; |
| 394 | $quiz_post_type = tutor()->quiz_post_type; |
| 395 | |
| 396 | $topic_ids = $this->get_post_ids( 'topics', $post_id ); |
| 397 | |
| 398 | // Course > Topic > ( Lesson | Quiz | Assignment ). |
| 399 | if ( ! empty( $topic_ids ) ) { |
| 400 | foreach ( $topic_ids as $topic_id ) { |
| 401 | $content_post_type = array( $lesson_post_type, $assignment_post_type, $quiz_post_type ); |
| 402 | $topic_content_ids = $this->get_post_ids( $content_post_type, $topic_id ); |
| 403 | |
| 404 | foreach ( $topic_content_ids as $content_id ) { |
| 405 | /** |
| 406 | * Delete Quiz data |
| 407 | */ |
| 408 | if ( get_post_type( $content_id ) === 'tutor_quiz' ) { |
| 409 | $wpdb->delete( $wpdb->prefix . 'tutor_quiz_attempts', array( 'quiz_id' => $content_id ) ); |
| 410 | $wpdb->delete( $wpdb->prefix . 'tutor_quiz_attempt_answers', array( 'quiz_id' => $content_id ) ); |
| 411 | |
| 412 | $questions_ids = $wpdb->get_col( $wpdb->prepare( "SELECT question_id FROM {$wpdb->prefix}tutor_quiz_questions WHERE quiz_id = %d ", $content_id ) ); |
| 413 | if ( is_array( $questions_ids ) && count( $questions_ids ) ) { |
| 414 | $in_question_ids = "'" . implode( "','", $questions_ids ) . "'"; |
| 415 | //phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared |
| 416 | $wpdb->query( "DELETE FROM {$wpdb->prefix}tutor_quiz_question_answers WHERE belongs_question_id IN({$in_question_ids}) " ); |
| 417 | } |
| 418 | $wpdb->delete( $wpdb->prefix . 'tutor_quiz_questions', array( 'quiz_id' => $content_id ) ); |
| 419 | } |
| 420 | |
| 421 | /** |
| 422 | * Delete assignment data ( Assignments, Assignment Submit, Assignment Evalutation ) |
| 423 | * |
| 424 | * @since 2.0.9 |
| 425 | */ |
| 426 | if ( get_post_type( $content_id ) === $assignment_post_type ) { |
| 427 | QueryHelper::delete_comment_with_meta( |
| 428 | array( |
| 429 | 'comment_type' => 'tutor_assignment', |
| 430 | 'comment_post_ID' => $content_id, |
| 431 | ) |
| 432 | ); |
| 433 | } |
| 434 | |
| 435 | wp_delete_post( $content_id, true ); |
| 436 | |
| 437 | } |
| 438 | |
| 439 | // Delete zoom meeting. |
| 440 | $wpdb->delete( |
| 441 | $wpdb->posts, |
| 442 | array( |
| 443 | 'post_parent' => $topic_id, |
| 444 | 'post_type' => 'tutor_zoom_meeting', |
| 445 | ) |
| 446 | ); |
| 447 | |
| 448 | /** |
| 449 | * Delete Google Meet Record Related to Course Topic |
| 450 | * |
| 451 | * @since 2.1.0 |
| 452 | */ |
| 453 | $wpdb->delete( |
| 454 | $wpdb->posts, |
| 455 | array( |
| 456 | 'post_parent' => $topic_id, |
| 457 | 'post_type' => 'tutor-google-meet', |
| 458 | ) |
| 459 | ); |
| 460 | |
| 461 | wp_delete_post( $topic_id, true ); |
| 462 | } |
| 463 | } |
| 464 | |
| 465 | $child_post_ids = $this->get_post_ids( array( 'tutor_announcements', 'tutor_enrolled', 'tutor_zoom_meeting', 'tutor-google-meet' ), $post_id ); |
| 466 | if ( ! empty( $child_post_ids ) ) { |
| 467 | foreach ( $child_post_ids as $child_post_id ) { |
| 468 | wp_delete_post( $child_post_id, true ); |
| 469 | } |
| 470 | } |
| 471 | |
| 472 | /** |
| 473 | * Delete earning, gradebook result, course complete data |
| 474 | * |
| 475 | * @since 2.0.9 |
| 476 | */ |
| 477 | $wpdb->delete( $wpdb->prefix . 'tutor_earnings', array( 'course_id' => $post_id ) ); |
| 478 | $wpdb->delete( $wpdb->prefix . 'tutor_gradebooks_results', array( 'course_id' => $post_id ) ); |
| 479 | $wpdb->delete( |
| 480 | $wpdb->comments, |
| 481 | array( |
| 482 | 'comment_type' => 'course_completed', |
| 483 | 'comment_post_ID' => $post_id, |
| 484 | ) |
| 485 | ); |
| 486 | |
| 487 | /** |
| 488 | * Delete onsite notification record & _tutor_instructor_course_id user meta |
| 489 | * |
| 490 | * @since 2.1.0 |
| 491 | */ |
| 492 | $wpdb->query( $wpdb->prepare( "DELETE FROM {$wpdb->prefix}tutor_notifications WHERE post_id=%d AND type IN ('Announcements','Q&A','Enrollments')", $post_id ) ); |
| 493 | $wpdb->delete( |
| 494 | $wpdb->usermeta, |
| 495 | array( |
| 496 | 'meta_key' => '_tutor_instructor_course_id', |
| 497 | 'meta_value' => $post_id, |
| 498 | ) |
| 499 | ); |
| 500 | |
| 501 | /** |
| 502 | * Delete Course rating and review |
| 503 | * |
| 504 | * @since 2.0.9 |
| 505 | */ |
| 506 | QueryHelper::delete_comment_with_meta( |
| 507 | array( |
| 508 | 'comment_type' => 'tutor_course_rating', |
| 509 | 'comment_post_ID' => $post_id, |
| 510 | ) |
| 511 | ); |
| 512 | |
| 513 | /** |
| 514 | * Delete Q&A and its status ( read, replied etc ) |
| 515 | * |
| 516 | * @since 2.0.9 |
| 517 | */ |
| 518 | QueryHelper::delete_comment_with_meta( |
| 519 | array( |
| 520 | 'comment_type' => 'tutor_q_and_a', |
| 521 | 'comment_post_ID' => $post_id, |
| 522 | ) |
| 523 | ); |
| 524 | |
| 525 | /** |
| 526 | * Delete caches |
| 527 | */ |
| 528 | $attempt_cache = new \Tutor\Cache\QuizAttempts(); |
| 529 | if ( $attempt_cache->has_cache() ) { |
| 530 | $attempt_cache->delete_cache(); |
| 531 | } |
| 532 | |
| 533 | return true; |
| 534 | } |
| 535 | |
| 536 | |
| 537 | /** |
| 538 | * Get paid courses |
| 539 | * |
| 540 | * To identify course is connected with any product |
| 541 | * like WC Product or EDD product meta key will be used |
| 542 | * |
| 543 | * @since 2.2.0 |
| 544 | * |
| 545 | * @param string $meta_key course product id meta key. |
| 546 | * @param array $args wp_query args. |
| 547 | * |
| 548 | * @return array |
| 549 | */ |
| 550 | public static function get_paid_courses( string $meta_key, array $args = array() ): array { |
| 551 | $current_user = wp_get_current_user(); |
| 552 | $default_args = array( |
| 553 | 'post_type' => 'courses', |
| 554 | 'post_status' => 'publish', |
| 555 | 'no_found_rows' => true, |
| 556 | 'posts_per_page' => -1, |
| 557 | 'relation' => 'AND', |
| 558 | 'meta_query' => array( |
| 559 | array( |
| 560 | 'key' => sanitize_text_field( $meta_key ), |
| 561 | 'value' => 0, |
| 562 | 'compare' => '!=', |
| 563 | 'type' => 'NUMERIC', |
| 564 | ), |
| 565 | ), |
| 566 | ); |
| 567 | |
| 568 | // Check if the current user is an admin. |
| 569 | if ( ! current_user_can( 'administrator' ) ) { |
| 570 | $args['author'] = $current_user->ID; |
| 571 | } |
| 572 | |
| 573 | $query = new \WP_Query( wp_parse_args( $args, $default_args ) ); |
| 574 | |
| 575 | if ( $query->have_posts() ) { |
| 576 | return $query->posts; |
| 577 | } |
| 578 | |
| 579 | return array(); |
| 580 | } |
| 581 | } |
| 582 |