Addons.php
3 years ago
Admin.php
3 years ago
Ajax.php
3 years ago
Announcements.php
3 years ago
Assets.php
3 years ago
Backend_Page_Trait.php
3 years ago
Course.php
3 years ago
Course_Embed.php
3 years ago
Course_Filter.php
3 years ago
Course_List.php
3 years ago
Course_Settings_Tabs.php
3 years ago
Course_Widget.php
3 years ago
Custom_Validation.php
3 years ago
Dashboard.php
3 years ago
FormHandler.php
3 years ago
Frontend.php
3 years ago
Gutenberg.php
3 years ago
Input.php
3 years ago
Instructor.php
3 years ago
Instructors_List.php
3 years ago
Lesson.php
3 years ago
Options_V2.php
3 years ago
Post_types.php
3 years ago
Private_Course_Access.php
3 years ago
Q_and_A.php
3 years ago
Question_Answers_List.php
3 years ago
Quiz.php
3 years ago
Quiz_Attempts_List.php
3 years ago
RestAPI.php
3 years ago
Reviews.php
3 years ago
Rewrite_Rules.php
3 years ago
Shortcode.php
3 years ago
Student.php
3 years ago
Students_List.php
3 years ago
Taxonomies.php
3 years ago
Template.php
3 years ago
Theme_Compatibility.php
3 years ago
Tools.php
3 years ago
Tools_V2.php
3 years ago
Tutor.php
3 years ago
TutorEDD.php
3 years ago
Tutor_Base.php
3 years ago
Tutor_Setup.php
3 years ago
Upgrader.php
3 years ago
User.php
3 years ago
Utils.php
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Video_Stream.php
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Withdraw.php
3 years ago
Withdraw_Requests_List.php
3 years ago
WooCommerce.php
3 years ago
Course.php
1626 lines
| 1 | <?php |
| 2 | /** |
| 3 | * Manage Course Related Logic |
| 4 | * |
| 5 | * @package Tutor |
| 6 | * @author Themeum <support@themeum.com> |
| 7 | * @link https://themeum.com |
| 8 | * @since 1.0.0 |
| 9 | */ |
| 10 | |
| 11 | namespace TUTOR; |
| 12 | |
| 13 | if ( ! defined( 'ABSPATH' ) ) { |
| 14 | exit; |
| 15 | } |
| 16 | |
| 17 | use TUTOR\Input; |
| 18 | use Tutor\Models\CourseModel; |
| 19 | |
| 20 | /** |
| 21 | * Course Class |
| 22 | * |
| 23 | * @since 1.0.0 |
| 24 | */ |
| 25 | class Course extends Tutor_Base { |
| 26 | |
| 27 | /** |
| 28 | * Additional course meta info |
| 29 | * |
| 30 | * @var array |
| 31 | */ |
| 32 | private $additional_meta = array( |
| 33 | '_tutor_enable_qa', |
| 34 | '_tutor_is_public_course', |
| 35 | ); |
| 36 | |
| 37 | /** |
| 38 | * Constructor |
| 39 | * |
| 40 | * @since 1.0.0 |
| 41 | * @return void |
| 42 | */ |
| 43 | public function __construct() { |
| 44 | parent::__construct(); |
| 45 | |
| 46 | add_action( 'add_meta_boxes', array( $this, 'register_meta_box' ) ); |
| 47 | add_action( 'save_post_' . $this->course_post_type, array( $this, 'save_course_meta' ), 10, 2 ); |
| 48 | add_action( 'wp_ajax_tutor_save_topic', array( $this, 'tutor_save_topic' ) ); |
| 49 | |
| 50 | /** |
| 51 | * Add Column |
| 52 | */ |
| 53 | add_filter( "manage_{$this->course_post_type}_posts_columns", array( $this, 'add_column' ), 10, 1 ); |
| 54 | add_action( "manage_{$this->course_post_type}_posts_custom_column", array( $this, 'custom_lesson_column' ), 10, 2 ); |
| 55 | |
| 56 | add_action( 'wp_ajax_tutor_delete_topic', array( $this, 'tutor_delete_topic' ) ); |
| 57 | add_action( 'admin_action_tutor_delete_announcement', array( $this, 'tutor_delete_announcement' ) ); |
| 58 | |
| 59 | /** |
| 60 | * Frontend Action |
| 61 | */ |
| 62 | add_action( 'template_redirect', array( $this, 'enroll_now' ) ); |
| 63 | add_action( 'init', array( $this, 'mark_course_complete' ) ); |
| 64 | |
| 65 | /** |
| 66 | * Frontend Dashboard |
| 67 | */ |
| 68 | add_action( 'wp_ajax_tutor_delete_dashboard_course', array( $this, 'tutor_delete_dashboard_course' ) ); |
| 69 | |
| 70 | /** |
| 71 | * Gutenberg author support |
| 72 | */ |
| 73 | add_filter( 'wp_insert_post_data', array( $this, 'tutor_add_gutenberg_author' ), '99', 2 ); |
| 74 | |
| 75 | /** |
| 76 | * Frontend metabox supports for course builder |
| 77 | * |
| 78 | * @since v.1.3.4 |
| 79 | */ |
| 80 | add_action( 'tutor/dashboard_course_builder_form_field_after', array( $this, 'register_meta_box_in_frontend' ) ); |
| 81 | |
| 82 | /** |
| 83 | * Do Stuff for the course save from frontend |
| 84 | */ |
| 85 | add_action( 'save_tutor_course', array( $this, 'attach_product_with_course' ), 10, 2 ); |
| 86 | |
| 87 | /** |
| 88 | * Add course level to course settings |
| 89 | * |
| 90 | * @since v.1.4.1 |
| 91 | */ |
| 92 | add_filter( 'tutor_course_settings_tabs', array( $this, 'add_course_level_to_settings' ) ); |
| 93 | |
| 94 | /** |
| 95 | * Enable Disable Course Details Page Feature |
| 96 | * |
| 97 | * @since v.1.4.8 |
| 98 | */ |
| 99 | $this->course_elements_enable_disable(); |
| 100 | |
| 101 | /** |
| 102 | * Check if course starting, set meta if starting |
| 103 | * |
| 104 | * @since v.1.4.8 |
| 105 | */ |
| 106 | add_action( 'tutor_lesson_load_before', array( $this, 'tutor_lesson_load_before' ) ); |
| 107 | |
| 108 | /** |
| 109 | * Filter product in shop page |
| 110 | * |
| 111 | * @since v.1.4.9 |
| 112 | */ |
| 113 | $this->filter_product_in_shop_page(); |
| 114 | |
| 115 | /** |
| 116 | * Remove the course price if enrolled |
| 117 | * |
| 118 | * @since 1.5.8 |
| 119 | */ |
| 120 | add_filter( 'tutor_course_price', array( $this, 'remove_price_if_enrolled' ) ); |
| 121 | |
| 122 | /** |
| 123 | * Remove course complete button if course completion is strict mode |
| 124 | * |
| 125 | * @since v.1.6.1 |
| 126 | */ |
| 127 | add_filter( 'tutor_course/single/complete_form', array( $this, 'tutor_lms_hide_course_complete_btn' ) ); |
| 128 | add_filter( 'get_gradebook_generate_form_html', array( $this, 'get_generate_greadbook' ) ); |
| 129 | |
| 130 | /** |
| 131 | * Add social share content in header |
| 132 | * |
| 133 | * @since v.1.6.3 |
| 134 | */ |
| 135 | add_action( 'wp_head', array( $this, 'social_share_content' ) ); |
| 136 | |
| 137 | /** |
| 138 | * Delete course data after deleted course |
| 139 | * |
| 140 | * @since v.1.6.6 |
| 141 | */ |
| 142 | add_action( 'deleted_post', array( new CourseModel(), 'delete_course_data' ) ); |
| 143 | |
| 144 | /** |
| 145 | * Delete course data after deleted course |
| 146 | * |
| 147 | * @since v.1.8.2 |
| 148 | */ |
| 149 | add_action( 'before_delete_post', array( $this, 'delete_associated_enrollment' ) ); |
| 150 | |
| 151 | /** |
| 152 | * Show only own uploads in media library if user is instructor |
| 153 | * |
| 154 | * @since v1.8.9 |
| 155 | */ |
| 156 | add_filter( 'posts_where', array( $this, 'restrict_media' ) ); |
| 157 | |
| 158 | /** |
| 159 | * Restrict new enrol/purchase button if course member limit reached |
| 160 | * |
| 161 | * @since v1.9.0 |
| 162 | */ |
| 163 | add_filter( 'tutor_course_restrict_new_entry', array( $this, 'restrict_new_student_entry' ) ); |
| 164 | |
| 165 | /** |
| 166 | * Reset course progress on retake |
| 167 | * |
| 168 | * @since v1.9.5 |
| 169 | */ |
| 170 | add_action( 'wp_ajax_tutor_reset_course_progress', array( $this, 'tutor_reset_course_progress' ) ); |
| 171 | |
| 172 | /** |
| 173 | * Popup for review |
| 174 | * |
| 175 | * @since v1.9.7 |
| 176 | */ |
| 177 | add_action( 'wp_footer', array( $this, 'popup_review_form' ) ); |
| 178 | |
| 179 | /** |
| 180 | * Do enroll after login if guest take enroll attempt |
| 181 | * |
| 182 | * @since 1.9.8 |
| 183 | */ |
| 184 | add_action( 'tutor_do_enroll_after_login_if_attempt', array( $this, 'enroll_after_login_if_attempt' ), 10, 2 ); |
| 185 | |
| 186 | add_action( 'wp_ajax_tutor_update_course_content_order', array( $this, 'tutor_update_course_content_order' ) ); |
| 187 | |
| 188 | add_action( 'wp_ajax_tutor_get_wc_product', array( $this, 'tutor_get_wc_product' ) ); |
| 189 | |
| 190 | add_action( 'wp_ajax_tutor_course_enrollment', array( $this, 'course_enrollment' ) ); |
| 191 | } |
| 192 | |
| 193 | /** |
| 194 | * Get course associate WC product info by Ajax request |
| 195 | * |
| 196 | * @since 2.0.7 |
| 197 | * @return void |
| 198 | */ |
| 199 | public function tutor_get_wc_product() { |
| 200 | tutor_utils()->checking_nonce(); |
| 201 | $product_id = Input::post( 'product_id' ); |
| 202 | $product = wc_get_product( $product_id ); |
| 203 | $course_id = Input::post( 'course_id', 0, Input::TYPE_INT ); |
| 204 | |
| 205 | $is_linked_with_course = tutor_utils()->product_belongs_with_course( $product_id ); |
| 206 | /** |
| 207 | * If selected product is already linked with |
| 208 | * a course & it is not the current course the |
| 209 | * return error |
| 210 | * |
| 211 | * @since v2.1.0 |
| 212 | */ |
| 213 | if ( is_object( $is_linked_with_course ) && $is_linked_with_course->post_id != $course_id ) { |
| 214 | wp_send_json_error( |
| 215 | __( 'One product can not be added to multiple course!', 'tutor' ) |
| 216 | ); |
| 217 | } |
| 218 | |
| 219 | if ( $product ) { |
| 220 | $data = array( |
| 221 | 'name' => $product->get_name(), |
| 222 | 'regular_price' => $product->get_regular_price(), |
| 223 | 'sale_price' => $product->get_sale_price(), |
| 224 | ); |
| 225 | wp_send_json_success( $data ); |
| 226 | } else { |
| 227 | wp_send_json_error( __( 'Product not found', 'tutor' ) ); |
| 228 | } |
| 229 | } |
| 230 | |
| 231 | /** |
| 232 | * Update course content order |
| 233 | * |
| 234 | * @since 1.0.0 |
| 235 | * @return void |
| 236 | */ |
| 237 | public function tutor_update_course_content_order() { |
| 238 | tutor_utils()->checking_nonce(); |
| 239 | |
| 240 | if ( Input::has( 'content_parent' ) ) { |
| 241 | $content_parent = Input::post( 'content_parent', array(), Input::TYPE_ARRAY ); |
| 242 | $topic_id = tutor_utils()->array_get( 'parent_topic_id', $content_parent ); |
| 243 | $content_id = tutor_utils()->array_get( 'content_id', $content_parent ); |
| 244 | |
| 245 | if ( ! tutor_utils()->can_user_manage( 'topic', $topic_id ) ) { |
| 246 | wp_send_json_success( array( 'message' => __( 'Access Denied!', 'tutor' ) ) ); |
| 247 | exit; |
| 248 | } |
| 249 | |
| 250 | // Update the parent topic id of the content. |
| 251 | global $wpdb; |
| 252 | $wpdb->update( $wpdb->posts, array( 'post_parent' => $topic_id ), array( 'ID' => $content_id ) ); |
| 253 | } |
| 254 | |
| 255 | // Save course content order. |
| 256 | $this->save_course_content_order(); |
| 257 | |
| 258 | wp_send_json_success(); |
| 259 | } |
| 260 | |
| 261 | /** |
| 262 | * Restrict new student entry |
| 263 | * |
| 264 | * @since 1.0.0 |
| 265 | * @param mixed $content content. |
| 266 | * @return mixed |
| 267 | */ |
| 268 | public function restrict_new_student_entry( $content ) { |
| 269 | |
| 270 | if ( ! tutor_utils()->is_course_fully_booked() ) { |
| 271 | // No restriction if not fully booked. |
| 272 | return $content; |
| 273 | } |
| 274 | |
| 275 | return '<div class="list-item-booking booking-full tutor-d-flex tutor-align-center"><div class="booking-progress tutor-d-flex"><span class="tutor-mr-8 tutor-color-warning tutor-icon-circle-info"></span></div><div class="tutor-fs-7 tutor-fw-medium">Fully Booked</div></div>'; |
| 276 | } |
| 277 | |
| 278 | /** |
| 279 | * Restrict media |
| 280 | * |
| 281 | * @since 1.0.0 |
| 282 | * @param string $where where clause. |
| 283 | * @return string |
| 284 | */ |
| 285 | public function restrict_media( $where ) { |
| 286 | $action = Input::post( 'action' ); |
| 287 | if ( 'query-attachments' === $action && tutor_utils()->is_instructor() ) { |
| 288 | if ( ! tutor_utils()->has_user_role( array( 'administrator', 'editor' ) ) ) { |
| 289 | $where .= ' AND post_author=' . get_current_user_id(); |
| 290 | } |
| 291 | } |
| 292 | |
| 293 | return $where; |
| 294 | } |
| 295 | |
| 296 | /** |
| 297 | * Registering metabox |
| 298 | * |
| 299 | * @since 1.0.0 |
| 300 | * @return void |
| 301 | */ |
| 302 | public function register_meta_box() { |
| 303 | $course_post_type = tutor()->course_post_type; |
| 304 | |
| 305 | tutor_meta_box_wrapper( 'tutor-course-topics', __( 'Course Builder', 'tutor' ), array( $this, 'course_meta_box' ), $course_post_type, 'advanced', 'default', 'tutor-admin-post-meta' ); |
| 306 | |
| 307 | tutor_meta_box_wrapper( 'tutor-course-additional-data', __( 'Additional Data', 'tutor' ), array( $this, 'course_additional_data_meta_box' ), $course_post_type, 'advanced', 'default', 'tutor-admin-post-meta' ); |
| 308 | |
| 309 | tutor_meta_box_wrapper( 'tutor-course-videos', __( 'Video', 'tutor' ), array( $this, 'video_metabox' ), $course_post_type, 'advanced', 'default', 'tutor-admin-post-meta' ); |
| 310 | } |
| 311 | |
| 312 | /** |
| 313 | * Course meta box (Topics) |
| 314 | * |
| 315 | * @since 1.0.0 |
| 316 | * @param boolean $echo display or not. |
| 317 | * @return string |
| 318 | */ |
| 319 | public function course_meta_box( $echo = true ) { |
| 320 | $file_path = tutor()->path . 'views/metabox/course-topics.php'; |
| 321 | |
| 322 | if ( $echo ) { |
| 323 | /** |
| 324 | * Use echo raise WPCS security issue |
| 325 | * Helper wp_kses_post break content. |
| 326 | */ |
| 327 | include $file_path; |
| 328 | } else { |
| 329 | ob_start(); |
| 330 | include $file_path; |
| 331 | return ob_get_clean(); |
| 332 | } |
| 333 | } |
| 334 | |
| 335 | /** |
| 336 | * Additional data meta box |
| 337 | * |
| 338 | * @since 1.0.0 |
| 339 | * @param boolean $echo print data or return. |
| 340 | * @return string |
| 341 | */ |
| 342 | public function course_additional_data_meta_box( $echo = true ) { |
| 343 | $file_path = tutor()->path . 'views/metabox/course-additional-data.php'; |
| 344 | |
| 345 | if ( $echo ) { |
| 346 | /** |
| 347 | * Use echo raise WPCS security issue |
| 348 | * Helper wp_kses_post break content. |
| 349 | */ |
| 350 | include $file_path; |
| 351 | } else { |
| 352 | ob_start(); |
| 353 | include $file_path; |
| 354 | return ob_get_clean(); |
| 355 | } |
| 356 | } |
| 357 | |
| 358 | /** |
| 359 | * Video meta box |
| 360 | * |
| 361 | * @since 1.0.0 |
| 362 | * @param boolean $echo print data or return. |
| 363 | * @return string |
| 364 | */ |
| 365 | public function video_metabox( $echo = true ) { |
| 366 | $file_path = tutor()->path . 'views/metabox/video-metabox.php'; |
| 367 | |
| 368 | if ( $echo ) { |
| 369 | /** |
| 370 | * Use echo raise WPCS security issue |
| 371 | * Helper wp_kses_post break content. |
| 372 | */ |
| 373 | include $file_path; |
| 374 | } else { |
| 375 | ob_start(); |
| 376 | include $file_path; |
| 377 | return ob_get_clean(); |
| 378 | } |
| 379 | } |
| 380 | |
| 381 | /** |
| 382 | * Register metabox in course builder tutor |
| 383 | * |
| 384 | * @since 1.3.4 |
| 385 | * @return void |
| 386 | */ |
| 387 | public function register_meta_box_in_frontend() { |
| 388 | global $post; |
| 389 | |
| 390 | do_action( 'tutor_course_builder_metabox_before', get_the_ID() ); |
| 391 | |
| 392 | course_builder_section_wrap( $this->video_metabox( false ), __( 'Video', 'tutor' ) ); |
| 393 | do_action( 'tutor/frontend_course_edit/after/video', $post ); |
| 394 | |
| 395 | course_builder_section_wrap( $this->course_meta_box( false ), __( 'Course Builder', 'tutor' ) ); |
| 396 | do_action( 'tutor/frontend_course_edit/after/course_builder', $post ); |
| 397 | |
| 398 | course_builder_section_wrap( $this->course_additional_data_meta_box( false ), __( 'Additional Data', 'tutor' ) ); |
| 399 | do_action( 'tutor/frontend_course_edit/after/additional_data', $post ); |
| 400 | |
| 401 | do_action( 'tutor_course_builder_metabox_after', get_the_ID() ); |
| 402 | } |
| 403 | |
| 404 | /** |
| 405 | * Save course content order |
| 406 | * |
| 407 | * @since 1.0.0 |
| 408 | * @return void |
| 409 | */ |
| 410 | private function save_course_content_order() { |
| 411 | global $wpdb; |
| 412 | |
| 413 | $new_order = Input::post( 'tutor_topics_lessons_sorting' ); |
| 414 | if ( ! empty( $new_order ) ) { |
| 415 | $order = json_decode( $new_order, true ); |
| 416 | |
| 417 | if ( is_array( $order ) && count( $order ) ) { |
| 418 | $i = 0; |
| 419 | foreach ( $order as $topic ) { |
| 420 | $i++; |
| 421 | $wpdb->update( |
| 422 | $wpdb->posts, |
| 423 | array( 'menu_order' => $i ), |
| 424 | array( 'ID' => $topic['topic_id'] ) |
| 425 | ); |
| 426 | |
| 427 | /** |
| 428 | * Removing All lesson with topic |
| 429 | */ |
| 430 | |
| 431 | $wpdb->update( |
| 432 | $wpdb->posts, |
| 433 | array( 'post_parent' => 0 ), |
| 434 | array( 'post_parent' => $topic['topic_id'] ) |
| 435 | ); |
| 436 | |
| 437 | /** |
| 438 | * Lesson Attaching with topic ID |
| 439 | * Sorting lesson |
| 440 | */ |
| 441 | if ( isset( $topic['lesson_ids'] ) ) { |
| 442 | $lesson_ids = $topic['lesson_ids']; |
| 443 | } else { |
| 444 | $lesson_ids = array(); |
| 445 | } |
| 446 | if ( count( $lesson_ids ) ) { |
| 447 | foreach ( $lesson_ids as $lesson_key => $lesson_id ) { |
| 448 | $wpdb->update( |
| 449 | $wpdb->posts, |
| 450 | array( |
| 451 | 'post_parent' => $topic['topic_id'], |
| 452 | 'menu_order' => $lesson_key, |
| 453 | ), |
| 454 | array( 'ID' => $lesson_id ) |
| 455 | ); |
| 456 | } |
| 457 | } |
| 458 | } |
| 459 | } |
| 460 | } |
| 461 | } |
| 462 | |
| 463 | /** |
| 464 | * Insert Topic and attached it with Course |
| 465 | * |
| 466 | * @since 1.0.0 |
| 467 | * |
| 468 | * @param integer $post_ID post ID. |
| 469 | * @param object $post post object. |
| 470 | * |
| 471 | * @return void |
| 472 | */ |
| 473 | public function save_course_meta( $post_ID, $post ) { |
| 474 | global $wpdb; |
| 475 | |
| 476 | do_action( 'tutor_save_course', $post_ID, $post ); |
| 477 | |
| 478 | /** |
| 479 | * Save course price type |
| 480 | */ |
| 481 | $price_type = Input::post( 'tutor_course_price_type' ); |
| 482 | if ( $price_type ) { |
| 483 | update_post_meta( $post_ID, '_tutor_course_price_type', $price_type ); |
| 484 | } |
| 485 | |
| 486 | //phpcs:disable WordPress.Security.NonceVerification.Missing |
| 487 | // Course Duration. |
| 488 | if ( ! empty( $_POST['course_duration'] ) ) { |
| 489 | $video = Input::post( 'course_duration', array(), Input::TYPE_ARRAY ); |
| 490 | update_post_meta( $post_ID, '_course_duration', $video ); |
| 491 | } |
| 492 | |
| 493 | if ( ! empty( $_POST['_tutor_course_level'] ) ) { |
| 494 | $course_level = Input::post( '_tutor_course_level' ); |
| 495 | update_post_meta( $post_ID, '_tutor_course_level', $course_level ); |
| 496 | } |
| 497 | |
| 498 | $additional_data_edit = Input::post( '_tutor_course_additional_data_edit' ); |
| 499 | if ( $additional_data_edit ) { |
| 500 | if ( ! empty( $_POST['course_benefits'] ) ) { |
| 501 | $course_benefits = Input::post( 'course_benefits', '', Input::TYPE_KSES_POST ); |
| 502 | update_post_meta( $post_ID, '_tutor_course_benefits', $course_benefits ); |
| 503 | } else { |
| 504 | delete_post_meta( $post_ID, '_tutor_course_benefits' ); |
| 505 | } |
| 506 | |
| 507 | if ( ! empty( $_POST['course_requirements'] ) ) { |
| 508 | $requirements = Input::post( 'course_requirements', '', Input::TYPE_KSES_POST ); |
| 509 | update_post_meta( $post_ID, '_tutor_course_requirements', $requirements ); |
| 510 | } else { |
| 511 | delete_post_meta( $post_ID, '_tutor_course_requirements' ); |
| 512 | } |
| 513 | |
| 514 | if ( ! empty( $_POST['course_target_audience'] ) ) { |
| 515 | $target_audience = Input::post( 'course_target_audience', '', Input::TYPE_KSES_POST ); |
| 516 | update_post_meta( $post_ID, '_tutor_course_target_audience', $target_audience ); |
| 517 | } else { |
| 518 | delete_post_meta( $post_ID, '_tutor_course_target_audience' ); |
| 519 | } |
| 520 | |
| 521 | if ( ! empty( $_POST['course_material_includes'] ) ) { |
| 522 | $material_includes = Input::post( 'course_material_includes', '', Input::TYPE_KSES_POST ); |
| 523 | update_post_meta( $post_ID, '_tutor_course_material_includes', $material_includes ); |
| 524 | } else { |
| 525 | delete_post_meta( $post_ID, '_tutor_course_material_includes' ); |
| 526 | } |
| 527 | //phpcs:enable WordPress.Security.NonceVerification.Missing |
| 528 | } |
| 529 | |
| 530 | /** |
| 531 | * Sorting Topics and lesson |
| 532 | */ |
| 533 | $this->save_course_content_order(); |
| 534 | |
| 535 | // Additional data like course intro video. |
| 536 | if ( $additional_data_edit ) { |
| 537 | // Sanitize data through helper method. |
| 538 | $video = Input::sanitize_array( |
| 539 | $_POST['video'] ?? array(), //phpcs:ignore |
| 540 | array( |
| 541 | 'source_external_url' => 'esc_url', |
| 542 | 'source_embedded' => 'wp_kses_post', |
| 543 | ), |
| 544 | true |
| 545 | ); |
| 546 | $video_source = tutor_utils()->array_get( 'source', $video ); |
| 547 | if ( -1 !== $video_source ) { |
| 548 | update_post_meta( $post_ID, '_video', $video ); |
| 549 | } else { |
| 550 | delete_post_meta( $post_ID, '_video' ); |
| 551 | } |
| 552 | } |
| 553 | |
| 554 | /** |
| 555 | * Adding author to instructor automatically |
| 556 | */ |
| 557 | |
| 558 | // Override post author id. |
| 559 | $author_id = isset( $_POST['post_author_override'] ) ? $_POST['post_author_override'] : $post->post_author; //phpcs:ignore |
| 560 | $attached = (int) $wpdb->get_var( |
| 561 | $wpdb->prepare( |
| 562 | "SELECT COUNT(umeta_id) FROM {$wpdb->usermeta} |
| 563 | WHERE user_id = %d |
| 564 | AND meta_key = '_tutor_instructor_course_id' |
| 565 | AND meta_value = %d ", |
| 566 | $author_id, |
| 567 | $post_ID |
| 568 | ) |
| 569 | ); |
| 570 | |
| 571 | if ( ! $attached ) { |
| 572 | add_user_meta( $author_id, '_tutor_instructor_course_id', $post_ID ); |
| 573 | } |
| 574 | |
| 575 | /** |
| 576 | * Disable question and answer for this course |
| 577 | * |
| 578 | * @since 1.7.0 |
| 579 | */ |
| 580 | if ( $additional_data_edit ) { |
| 581 | foreach ( $this->additional_meta as $key ) { |
| 582 | //phpcs:ignore WordPress.Security.NonceVerification.Missing |
| 583 | update_post_meta( $post_ID, $key, ( isset( $_POST[ $key ] ) ? 'yes' : 'no' ) ); |
| 584 | } |
| 585 | } |
| 586 | |
| 587 | do_action( 'tutor_save_course_after', $post_ID, $post ); |
| 588 | } |
| 589 | |
| 590 | /** |
| 591 | * Save course topic |
| 592 | * |
| 593 | * @since 1.0.0 |
| 594 | * @return void |
| 595 | */ |
| 596 | public function tutor_save_topic() { |
| 597 | tutor_utils()->checking_nonce(); |
| 598 | |
| 599 | // Check required fields. |
| 600 | if ( empty( Input::post( 'topic_title' ) ) ) { |
| 601 | wp_send_json_error( array( 'message' => __( 'Topic title is required!', 'tutor' ) ) ); |
| 602 | } |
| 603 | |
| 604 | // Gather parameters. |
| 605 | $course_id = Input::post( 'topic_course_id', 0, Input::TYPE_INT ); |
| 606 | $topic_id = Input::post( 'topic_id', 0, Input::TYPE_INT ); |
| 607 | $topic_title = Input::post( 'topic_title' ); |
| 608 | $topic_summery = Input::post( 'topic_summery', '', Input::TYPE_KSES_POST ); |
| 609 | $next_topic_order_id = tutor_utils()->get_next_topic_order_id( $course_id, $topic_id ); |
| 610 | |
| 611 | // Validate if user can manage the topic. |
| 612 | if ( ! tutor_utils()->can_user_manage( 'course', $course_id ) || ( $topic_id && ! tutor_utils()->can_user_manage( 'topic', $topic_id ) ) ) { |
| 613 | wp_send_json_error( array( 'message' => __( 'Access Denied', 'tutor' ) ) ); |
| 614 | } |
| 615 | |
| 616 | // Create payload to create/update the topic. |
| 617 | $post_arr = array( |
| 618 | 'post_type' => 'topics', |
| 619 | 'post_title' => $topic_title, |
| 620 | 'post_content' => $topic_summery, |
| 621 | 'post_status' => 'publish', |
| 622 | 'post_author' => get_current_user_id(), |
| 623 | 'post_parent' => $course_id, |
| 624 | 'menu_order' => $next_topic_order_id, |
| 625 | ); |
| 626 | $topic_id ? $post_arr['ID'] = $topic_id : 0; |
| 627 | $current_topic_id = wp_insert_post( $post_arr ); |
| 628 | |
| 629 | ob_start(); |
| 630 | include tutor()->path . 'views/metabox/course-contents.php'; |
| 631 | |
| 632 | wp_send_json_success( |
| 633 | array( |
| 634 | 'topic_title' => $topic_title, |
| 635 | 'course_contents' => ob_get_clean(), |
| 636 | ) |
| 637 | ); |
| 638 | } |
| 639 | |
| 640 | /** |
| 641 | * Add columns to course row in default WP list table |
| 642 | * |
| 643 | * @since 1.0.0 |
| 644 | * |
| 645 | * @param array $columns column list. |
| 646 | * @return mixed |
| 647 | */ |
| 648 | public function add_column( $columns ) { |
| 649 | $date_col = $columns['date']; |
| 650 | unset( $columns['date'] ); |
| 651 | $columns['lessons'] = __( 'Lessons', 'tutor' ); |
| 652 | $columns['students'] = __( 'Students', 'tutor' ); |
| 653 | $columns['price'] = __( 'Price', 'tutor' ); |
| 654 | $columns['date'] = $date_col; |
| 655 | |
| 656 | return $columns; |
| 657 | } |
| 658 | |
| 659 | /** |
| 660 | * Add data to custom column |
| 661 | * |
| 662 | * @since 1.0.0 |
| 663 | * |
| 664 | * @param string $column column name. |
| 665 | * @param integer $post_id post ID. |
| 666 | * |
| 667 | * @return void |
| 668 | */ |
| 669 | public function custom_lesson_column( $column, $post_id ) { |
| 670 | if ( 'lessons' === $column ) { |
| 671 | echo esc_html( tutor_utils()->get_lesson_count_by_course( $post_id ) ); |
| 672 | } |
| 673 | |
| 674 | if ( 'students' === $column ) { |
| 675 | echo esc_html( tutor_utils()->count_enrolled_users_by_course( $post_id ) ); |
| 676 | } |
| 677 | |
| 678 | if ( 'price' === $column ) { |
| 679 | $price = tutor_utils()->get_course_price( $post_id ); |
| 680 | if ( $price ) { |
| 681 | $monetize_by = tutils()->get_option( 'monetize_by' ); |
| 682 | if ( function_exists( 'wc_price' ) && 'wc' === $monetize_by ) { |
| 683 | echo wp_kses( |
| 684 | '<span class="tutor-label-success">' . wc_price( $price ) . '</span>', |
| 685 | array( |
| 686 | 'span' => array( 'class' => true ), |
| 687 | ) |
| 688 | ); |
| 689 | } else { |
| 690 | echo wp_kses( |
| 691 | '<span class="tutor-label-success">' . $price . '</span>', |
| 692 | array( 'span' => array( 'class' => true ) ) |
| 693 | ); |
| 694 | } |
| 695 | } else { |
| 696 | echo esc_html( apply_filters( 'tutor-loop-default-price', __( 'free', 'tutor' ) ) ); |
| 697 | } |
| 698 | } |
| 699 | } |
| 700 | |
| 701 | |
| 702 | /** |
| 703 | * Delete a course topic |
| 704 | * |
| 705 | * @since 1.0.0 |
| 706 | * @return void |
| 707 | */ |
| 708 | public function tutor_delete_topic() { |
| 709 | |
| 710 | tutor_utils()->checking_nonce(); |
| 711 | |
| 712 | global $wpdb; |
| 713 | $topic_id = Input::post( 'topic_id', '' ); |
| 714 | |
| 715 | if ( ! $topic_id || ! is_numeric( $topic_id ) || ! tutor_utils()->can_user_manage( 'topic', $topic_id ) ) { |
| 716 | wp_send_json_error( array( 'message' => 'Access Forbidden' ) ); |
| 717 | } |
| 718 | |
| 719 | // Assign course ID to orphan content IDs since the topic will be deleted. |
| 720 | $course_id = tutor_utils()->get_course_id_by( 'topic', $topic_id ); |
| 721 | $content_ids = tutor_utils()->get_course_content_ids_by( null, 'topic', $topic_id ); |
| 722 | foreach ( $content_ids as $content_id ) { |
| 723 | update_post_meta( $content_id, '_tutor_course_id_for_lesson', $course_id ); |
| 724 | // Actually all kind of contents. |
| 725 | // This keyword '_tutor_course_id_for_lesson' used just to support backward compatibillity. |
| 726 | } |
| 727 | |
| 728 | // Set contents under the topic orphan. |
| 729 | $wpdb->update( $wpdb->posts, array( 'post_parent' => 0 ), array( 'post_parent' => $topic_id ) ); |
| 730 | |
| 731 | // Then delete the topic from database. |
| 732 | $wpdb->delete( $wpdb->postmeta, array( 'post_id' => $topic_id ) ); |
| 733 | wp_delete_post( $topic_id ); |
| 734 | |
| 735 | wp_send_json_success(); |
| 736 | } |
| 737 | |
| 738 | /** |
| 739 | * Delete announcement |
| 740 | * |
| 741 | * @since 1.0.0 |
| 742 | * @return void |
| 743 | */ |
| 744 | public function tutor_delete_announcement() { |
| 745 | tutor_utils()->checking_nonce( 'get' ); |
| 746 | |
| 747 | $announcement_id = Input::get( 'topic_id', 0, Input::TYPE_INT ); |
| 748 | |
| 749 | wp_delete_post( $announcement_id ); |
| 750 | wp_safe_redirect( wp_get_referer() ); |
| 751 | } |
| 752 | |
| 753 | /** |
| 754 | * Handle enroll now action |
| 755 | * |
| 756 | * @since 1.0.0 |
| 757 | * @return void |
| 758 | */ |
| 759 | public function enroll_now() { |
| 760 | |
| 761 | // Checking if action comes from Enroll form. |
| 762 | // phpcs:ignore WordPress.Security.NonceVerification.Missing |
| 763 | if ( tutor_utils()->array_get( 'tutor_course_action', tutor_sanitize_data( $_POST ) ) !== '_tutor_course_enroll_now' || ! isset( $_POST['tutor_course_id'] ) ) { |
| 764 | return; |
| 765 | } |
| 766 | |
| 767 | // Checking Nonce. |
| 768 | tutor_utils()->checking_nonce(); |
| 769 | |
| 770 | $user_id = get_current_user_id(); |
| 771 | if ( ! $user_id ) { |
| 772 | exit( esc_html__( 'Please Sign In first', 'tutor' ) ); |
| 773 | } |
| 774 | |
| 775 | $course_id = Input::post( 'tutor_course_id', 0, Input::TYPE_INT ); |
| 776 | $user_id = get_current_user_id(); |
| 777 | |
| 778 | /** |
| 779 | * TODO: need to check purchase information |
| 780 | */ |
| 781 | |
| 782 | $is_purchasable = tutor_utils()->is_course_purchasable( $course_id ); |
| 783 | |
| 784 | /** |
| 785 | * If is is not purchasable, it's free, and enroll right now |
| 786 | * If purchasable, then process purchase. |
| 787 | * |
| 788 | * @since: v.1.0.0 |
| 789 | */ |
| 790 | if ( $is_purchasable ) { //phpcs:ignore Generic.CodeAnalysis.EmptyStatement.DetectedIf |
| 791 | // Process purchase. |
| 792 | |
| 793 | } else { |
| 794 | // Free enroll. |
| 795 | tutor_utils()->do_enroll( $course_id ); |
| 796 | } |
| 797 | |
| 798 | $referer_url = wp_get_referer(); |
| 799 | wp_redirect( $referer_url ); |
| 800 | } |
| 801 | |
| 802 | /** |
| 803 | * Mark complete completed |
| 804 | * |
| 805 | * @since 1.0.0 |
| 806 | * @return void |
| 807 | */ |
| 808 | public function mark_course_complete() { |
| 809 | $tutor_action = Input::post( 'tutor_action' ); |
| 810 | $course_id = Input::post( 'course_id', 0, Input::TYPE_INT ); |
| 811 | if ( 'tutor_complete_course' !== $tutor_action || ! $course_id ) { |
| 812 | return; |
| 813 | } |
| 814 | |
| 815 | // Checking nonce. |
| 816 | tutor_utils()->checking_nonce(); |
| 817 | |
| 818 | $user_id = get_current_user_id(); |
| 819 | |
| 820 | // TODO: need to show view if not signed_in. |
| 821 | if ( ! $user_id ) { |
| 822 | die( esc_html__( 'Please Sign-In', 'tutor' ) ); |
| 823 | } |
| 824 | |
| 825 | CourseModel::mark_course_as_completed( $course_id, $user_id ); |
| 826 | |
| 827 | $permalink = get_the_permalink( $course_id ); |
| 828 | |
| 829 | // Set temporary identifier to show review pop up. |
| 830 | if ( get_tutor_option( 'enable_course_review' ) ) { |
| 831 | $rating = tutor_utils()->get_course_rating_by_user( $course_id, $user_id ); |
| 832 | if ( ! $rating || ( empty( $rating->rating ) && empty( $rating->review ) ) ) { |
| 833 | update_option( |
| 834 | 'tutor_course_complete_popup_' . $user_id, |
| 835 | array( |
| 836 | 'course_id' => $course_id, |
| 837 | 'course_url' => $permalink, |
| 838 | 'expires' => time() + 10, |
| 839 | ) |
| 840 | ); |
| 841 | } |
| 842 | } |
| 843 | |
| 844 | wp_redirect( $permalink ); |
| 845 | exit; |
| 846 | } |
| 847 | |
| 848 | /** |
| 849 | * Popup review form |
| 850 | * |
| 851 | * @since 1.0.0 |
| 852 | * @return void |
| 853 | */ |
| 854 | public function popup_review_form() { |
| 855 | if ( is_user_logged_in() ) { |
| 856 | $key = 'tutor_course_complete_popup_' . get_current_user_id(); |
| 857 | $popup = get_option( $key ); |
| 858 | |
| 859 | if ( is_array( $popup ) ) { |
| 860 | |
| 861 | if ( $popup['expires'] > time() ) { |
| 862 | $course_id = $popup['course_id']; |
| 863 | include tutor()->path . 'views/modal/review.php'; |
| 864 | } |
| 865 | |
| 866 | delete_option( $key ); |
| 867 | } |
| 868 | } |
| 869 | } |
| 870 | |
| 871 | /** |
| 872 | * Delete course delete from frontend dashboard |
| 873 | * |
| 874 | * @since 2.0.0 |
| 875 | * @return void |
| 876 | */ |
| 877 | public function tutor_delete_dashboard_course() { |
| 878 | tutor_utils()->checking_nonce(); |
| 879 | |
| 880 | $course_id = Input::post( 'course_id', 0, Input::TYPE_INT ); |
| 881 | if ( ! tutor_utils()->can_user_manage( 'course', $course_id ) ) { |
| 882 | wp_send_json_error( array( 'message' => __( 'Access Denied', 'tutor' ) ) ); |
| 883 | } |
| 884 | |
| 885 | /** |
| 886 | * Co-instructor can not delete a course |
| 887 | * @since 2.1.6 |
| 888 | */ |
| 889 | if ( false === CourseModel::is_main_instructor( $course_id ) ) { |
| 890 | wp_send_json_error( array( 'message' => __( 'Only main instructor can delete this course', 'tutor' ) ) ); |
| 891 | } |
| 892 | |
| 893 | CourseModel::delete_course( $course_id ); |
| 894 | wp_send_json_success(); |
| 895 | } |
| 896 | |
| 897 | /** |
| 898 | * Main author change from gutenberg editor |
| 899 | * |
| 900 | * @since 2.0.0 |
| 901 | * |
| 902 | * @param array $data data. |
| 903 | * @param array $postarr post array. |
| 904 | * |
| 905 | * @return mixed |
| 906 | */ |
| 907 | public function tutor_add_gutenberg_author( $data, $postarr ) { |
| 908 | $gutenberg_enabled = tutor_utils()->get_option( 'enable_gutenberg_course_edit' ); |
| 909 | $post_type = $postarr['post_type']; |
| 910 | $courses_post_type = tutor()->course_post_type; |
| 911 | |
| 912 | if ( false === $gutenberg_enabled && $post_type !== $courses_post_type ) { |
| 913 | return $data; |
| 914 | } |
| 915 | |
| 916 | /** |
| 917 | * Only admin can change main author |
| 918 | */ |
| 919 | if ( $courses_post_type === $post_type && ! current_user_can( 'administrator' ) ) { |
| 920 | global $wpdb; |
| 921 | $post_ID = (int) tutor_utils()->avalue_dot( 'ID', $postarr ); |
| 922 | $post_author = (int) $wpdb->get_var( $wpdb->prepare( "SELECT post_author FROM {$wpdb->posts} WHERE ID = %d ", $post_ID ) ); |
| 923 | |
| 924 | if ( $post_author > 0 ) { |
| 925 | $data['post_author'] = $post_author; |
| 926 | } else { |
| 927 | $data['post_author'] = get_current_user_id(); |
| 928 | } |
| 929 | } |
| 930 | |
| 931 | return $data; |
| 932 | } |
| 933 | |
| 934 | |
| 935 | /** |
| 936 | * Attach product with course when course save from frontend or backend. |
| 937 | * |
| 938 | * @since 1.3.4 |
| 939 | * |
| 940 | * @param integer $post_ID course ID. |
| 941 | * @param array $post_data cretaed course post details. |
| 942 | * |
| 943 | * @return void |
| 944 | */ |
| 945 | public function attach_product_with_course( $post_ID, $post_data ) { |
| 946 | |
| 947 | $monetize_by = tutor_utils()->get_option( 'monetize_by' ); |
| 948 | |
| 949 | /** |
| 950 | * The function is_admin will check only loaded page from WP admin. |
| 951 | * It does not check any role |
| 952 | */ |
| 953 | $is_admin_panel = is_admin(); |
| 954 | // From backend course select box. |
| 955 | $product_id = Input::post( '_tutor_course_product_id', 0, Input::TYPE_INT ); |
| 956 | |
| 957 | /** |
| 958 | * From Admin Panel, Free user can only select product from dropdown |
| 959 | */ |
| 960 | if ( $is_admin_panel && 'wc' === $monetize_by && tutor()->has_pro === false ) { |
| 961 | if ( $product_id > 0 ) { |
| 962 | update_post_meta( $post_ID, '_tutor_course_product_id', $product_id ); |
| 963 | } elseif ( -1 === $product_id ) { |
| 964 | delete_post_meta( $post_ID, '_tutor_course_product_id' ); |
| 965 | } |
| 966 | |
| 967 | return; |
| 968 | } |
| 969 | |
| 970 | $attached_product_id = tutor_utils()->get_course_product_id( $post_ID ); |
| 971 | $course_price = Input::post( 'course_price', 0, Input::TYPE_NUMERIC ); |
| 972 | $sale_price = Input::post( 'course_sale_price', 0, Input::TYPE_NUMERIC ); |
| 973 | |
| 974 | if ( ! $course_price || $sale_price >= $course_price ) { |
| 975 | return; |
| 976 | } |
| 977 | |
| 978 | $course = get_post( $post_ID ); |
| 979 | |
| 980 | if ( 'wc' === $monetize_by ) { |
| 981 | |
| 982 | $is_update = false; |
| 983 | if ( $attached_product_id ) { |
| 984 | $wc_product = get_post_meta( $attached_product_id, '_product_version', true ); |
| 985 | if ( $wc_product ) { |
| 986 | $is_update = true; |
| 987 | } |
| 988 | } |
| 989 | |
| 990 | if ( $is_update || ( $product_id > 0 && $is_admin_panel ) ) { |
| 991 | // Added in @since 2.0.7. |
| 992 | if ( $product_id > 0 && $is_admin_panel ) { |
| 993 | $attached_product_id = $product_id; |
| 994 | update_post_meta( $post_ID, '_tutor_course_product_id', $product_id ); |
| 995 | } |
| 996 | |
| 997 | $product_obj = wc_get_product( $attached_product_id ); |
| 998 | $product_obj->set_price( $course_price ); // Set product price. |
| 999 | $product_obj->set_regular_price( $course_price ); // Set product regular price. |
| 1000 | |
| 1001 | if ( $sale_price > 0 ) { |
| 1002 | $product_obj->set_sale_price( $sale_price ); |
| 1003 | } else { |
| 1004 | // When use remove sale price ( discounted price ). |
| 1005 | $product_obj->set_sale_price( null ); |
| 1006 | } |
| 1007 | |
| 1008 | $product_obj->set_sold_individually( true ); |
| 1009 | $product_id = $product_obj->save(); |
| 1010 | if ( $product_obj->is_type( 'subscription' ) ) { |
| 1011 | update_post_meta( $attached_product_id, '_subscription_price', $course_price ); |
| 1012 | } |
| 1013 | } else { |
| 1014 | $product_obj = new \WC_Product(); |
| 1015 | $product_obj->set_name( $course->post_title ); |
| 1016 | $product_obj->set_status( 'publish' ); |
| 1017 | $product_obj->set_price( $course_price ); // Set product price. |
| 1018 | $product_obj->set_regular_price( $course_price ); // Set product regular price. |
| 1019 | |
| 1020 | if ( $sale_price > 0 ) { |
| 1021 | $product_obj->set_sale_price( $sale_price ); |
| 1022 | } |
| 1023 | |
| 1024 | $product_obj->set_sold_individually( true ); |
| 1025 | |
| 1026 | $product_id = $product_obj->save(); |
| 1027 | if ( $product_id ) { |
| 1028 | update_post_meta( $post_ID, '_tutor_course_product_id', $product_id ); |
| 1029 | // Mark product for woocommerce. |
| 1030 | update_post_meta( $product_id, '_virtual', 'yes' ); |
| 1031 | update_post_meta( $product_id, '_tutor_product', 'yes' ); |
| 1032 | |
| 1033 | $course_post_thumbnail = get_post_meta( $post_ID, '_thumbnail_id', true ); |
| 1034 | if ( $course_post_thumbnail ) { |
| 1035 | set_post_thumbnail( $product_id, $course_post_thumbnail ); |
| 1036 | } |
| 1037 | } |
| 1038 | } |
| 1039 | } elseif ( 'edd' === $monetize_by ) { |
| 1040 | |
| 1041 | $is_update = false; |
| 1042 | |
| 1043 | if ( $attached_product_id ) { |
| 1044 | $edd_price = get_post_meta( $attached_product_id, 'edd_price', true ); |
| 1045 | if ( $edd_price ) { |
| 1046 | $is_update = true; |
| 1047 | } |
| 1048 | } |
| 1049 | |
| 1050 | if ( $is_update ) { |
| 1051 | // Update the product. |
| 1052 | update_post_meta( $attached_product_id, 'edd_price', $course_price ); |
| 1053 | } else { |
| 1054 | // Create new product. |
| 1055 | |
| 1056 | $post_arr = array( |
| 1057 | 'post_type' => 'download', |
| 1058 | 'post_title' => $course->post_title, |
| 1059 | 'post_status' => 'publish', |
| 1060 | 'post_author' => get_current_user_id(), |
| 1061 | ); |
| 1062 | $download_id = wp_insert_post( $post_arr ); |
| 1063 | if ( $download_id ) { |
| 1064 | // EDD edd_price. |
| 1065 | update_post_meta( $download_id, 'edd_price', $course_price ); |
| 1066 | |
| 1067 | update_post_meta( $post_ID, '_tutor_course_product_id', $download_id ); |
| 1068 | // Mark product for EDD. |
| 1069 | update_post_meta( $download_id, '_tutor_product', 'yes' ); |
| 1070 | |
| 1071 | $course_post_thumbnail = get_post_meta( $post_ID, '_thumbnail_id', true ); |
| 1072 | if ( $course_post_thumbnail ) { |
| 1073 | set_post_thumbnail( $download_id, $course_post_thumbnail ); |
| 1074 | } |
| 1075 | } |
| 1076 | } |
| 1077 | } |
| 1078 | } |
| 1079 | |
| 1080 | /** |
| 1081 | * Add Course level to course settings |
| 1082 | * |
| 1083 | * @since 1.4.1 |
| 1084 | * |
| 1085 | * @param array $args arguments. |
| 1086 | * @return array |
| 1087 | */ |
| 1088 | public function add_course_level_to_settings( $args ) { |
| 1089 | $course_id = get_the_ID(); |
| 1090 | $levels = tutor_utils()->course_levels(); |
| 1091 | $course_level = get_post_meta( $course_id, '_tutor_course_level', true ); |
| 1092 | |
| 1093 | $args['general']['fields']['_tutor_course_level'] = array( |
| 1094 | 'type' => 'select', |
| 1095 | 'label' => __( 'Difficulty Level', 'tutor' ), |
| 1096 | 'label_title' => __( 'Enable', 'tutor' ), |
| 1097 | 'options' => $levels, |
| 1098 | 'value' => $course_level ? $course_level : 'intermediate', |
| 1099 | 'desc' => __( 'Course difficulty level', 'tutor' ), |
| 1100 | ); |
| 1101 | |
| 1102 | return $args; |
| 1103 | } |
| 1104 | |
| 1105 | /** |
| 1106 | * Check if course starting |
| 1107 | * |
| 1108 | * @since 1.4.8 |
| 1109 | * @return void |
| 1110 | */ |
| 1111 | public function tutor_lesson_load_before() { |
| 1112 | $course_id = tutor_utils()->get_course_id_by_content( get_the_ID() ); |
| 1113 | $completed_lessons = tutor_utils()->get_completed_lesson_count_by_course( $course_id ); |
| 1114 | if ( is_user_logged_in() ) { |
| 1115 | $is_course_started = get_post_meta( $course_id, '_tutor_course_started', true ); |
| 1116 | if ( ! $completed_lessons && ! $is_course_started ) { |
| 1117 | update_post_meta( $course_id, '_tutor_course_started', tutor_time() ); |
| 1118 | do_action( 'tutor/course/started', $course_id ); |
| 1119 | } |
| 1120 | } |
| 1121 | } |
| 1122 | |
| 1123 | /** |
| 1124 | * Add Course level to course settings |
| 1125 | * |
| 1126 | * @since 1.4.8 |
| 1127 | * @return void |
| 1128 | */ |
| 1129 | public function course_elements_enable_disable() { |
| 1130 | add_filter( 'tutor_course/single/completing-progress-bar', array( $this, 'enable_disable_course_progress_bar' ) ); |
| 1131 | add_filter( 'tutor_course/single/material_includes', array( $this, 'enable_disable_material_includes' ) ); |
| 1132 | add_filter( 'tutor_course/single/content', array( $this, 'enable_disable_course_content' ) ); |
| 1133 | add_filter( 'tutor_course/single/benefits_html', array( $this, 'enable_disable_course_benefits' ) ); |
| 1134 | add_filter( 'tutor_course/single/requirements_html', array( $this, 'enable_disable_course_requirements' ) ); |
| 1135 | add_filter( 'tutor_course/single/audience_html', array( $this, 'enable_disable_course_target_audience' ) ); |
| 1136 | add_filter( 'tutor_course/single/nav_items', array( $this, 'enable_disable_course_nav_items' ), 999, 2 ); |
| 1137 | } |
| 1138 | |
| 1139 | /** |
| 1140 | * Enable disable course progress bar |
| 1141 | * |
| 1142 | * @since 1.4.8 |
| 1143 | * |
| 1144 | * @param string $html HTML string. |
| 1145 | * @return string |
| 1146 | */ |
| 1147 | public function enable_disable_course_progress_bar( $html ) { |
| 1148 | $disable_option = ! (bool) tutor_utils()->get_option( 'enable_course_progress_bar', true, true ); |
| 1149 | if ( $disable_option ) { |
| 1150 | return ''; |
| 1151 | } |
| 1152 | return $html; |
| 1153 | } |
| 1154 | |
| 1155 | /** |
| 1156 | * Enable disable material includes |
| 1157 | * |
| 1158 | * @since 1.4.8 |
| 1159 | * |
| 1160 | * @param string $html HTML string. |
| 1161 | * @return string |
| 1162 | */ |
| 1163 | public function enable_disable_material_includes( $html ) { |
| 1164 | $disable_option = ! (bool) get_tutor_option( 'enable_course_material', true, true ); |
| 1165 | if ( $disable_option ) { |
| 1166 | return ''; |
| 1167 | } |
| 1168 | return $html; |
| 1169 | } |
| 1170 | |
| 1171 | /** |
| 1172 | * Enable disable course content |
| 1173 | * |
| 1174 | * @since 1.4.8 |
| 1175 | * |
| 1176 | * @param string $html HTML string. |
| 1177 | * @return string |
| 1178 | */ |
| 1179 | public function enable_disable_course_content( $html ) { |
| 1180 | $disable_option = ! (bool) tutor_utils()->get_option( 'enable_course_description', true, true ); |
| 1181 | if ( $disable_option ) { |
| 1182 | return ''; |
| 1183 | } |
| 1184 | return $html; |
| 1185 | } |
| 1186 | |
| 1187 | /** |
| 1188 | * Enable disable course benefits |
| 1189 | * |
| 1190 | * @since 1.4.8 |
| 1191 | * |
| 1192 | * @param string $html HTML string. |
| 1193 | * @return string |
| 1194 | */ |
| 1195 | public function enable_disable_course_benefits( $html ) { |
| 1196 | $disable_option = ! (bool) tutor_utils()->get_option( 'enable_course_benefits', true, true ); |
| 1197 | if ( $disable_option ) { |
| 1198 | return ''; |
| 1199 | } |
| 1200 | return $html; |
| 1201 | } |
| 1202 | |
| 1203 | /** |
| 1204 | * Enable disable course requirements |
| 1205 | * |
| 1206 | * @since 1.4.8 |
| 1207 | * |
| 1208 | * @param string $html HTML string. |
| 1209 | * @return string |
| 1210 | */ |
| 1211 | public function enable_disable_course_requirements( $html ) { |
| 1212 | $disable_option = ! (bool) tutor_utils()->get_option( 'enable_course_requirements', true, true ); |
| 1213 | if ( $disable_option ) { |
| 1214 | return ''; |
| 1215 | } |
| 1216 | return $html; |
| 1217 | } |
| 1218 | |
| 1219 | /** |
| 1220 | * Enable disable course target audience |
| 1221 | * |
| 1222 | * @since 1.4.8 |
| 1223 | * |
| 1224 | * @param string $html HTML string. |
| 1225 | * @return string |
| 1226 | */ |
| 1227 | public function enable_disable_course_target_audience( $html ) { |
| 1228 | $disable_option = ! (bool) tutor_utils()->get_option( 'enable_course_target_audience', true, true ); |
| 1229 | if ( $disable_option ) { |
| 1230 | return ''; |
| 1231 | } |
| 1232 | return $html; |
| 1233 | } |
| 1234 | |
| 1235 | /** |
| 1236 | * Enable disable course nav items |
| 1237 | * |
| 1238 | * @since 1.4.8 |
| 1239 | * |
| 1240 | * @param array $items item list. |
| 1241 | * @param integer $course_id course ID. |
| 1242 | * |
| 1243 | * @return array |
| 1244 | */ |
| 1245 | public function enable_disable_course_nav_items( $items, $course_id ) { |
| 1246 | global $wp_query, $post; |
| 1247 | $enable_q_and_a_on_course = (bool) get_tutor_option( 'enable_q_and_a_on_course' ); |
| 1248 | $disable_course_announcements = ! (bool) tutor_utils()->get_option( 'enable_course_announcements', true, true ); |
| 1249 | $disable_qa_for_this_course = ( $wp_query->is_single && ! empty( $post ) ) ? get_post_meta( $post->ID, '_tutor_enable_qa', true ) != 'yes' : false; |
| 1250 | |
| 1251 | // Whether Q&A enabled. |
| 1252 | if ( ! $enable_q_and_a_on_course || $disable_qa_for_this_course ) { |
| 1253 | if ( tutor_utils()->array_get( 'questions', $items ) ) { |
| 1254 | unset( $items['questions'] ); |
| 1255 | } |
| 1256 | } |
| 1257 | |
| 1258 | // Whether announcment enabled. |
| 1259 | if ( $disable_course_announcements ) { |
| 1260 | if ( tutor_utils()->array_get( 'announcements', $items ) ) { |
| 1261 | unset( $items['announcements'] ); |
| 1262 | } |
| 1263 | } |
| 1264 | |
| 1265 | // Hide review section if disabled. |
| 1266 | if ( ! get_tutor_option( 'enable_course_review' ) ) { |
| 1267 | unset( $items['reviews'] ); |
| 1268 | } |
| 1269 | |
| 1270 | // Whether enrollment require. |
| 1271 | $is_enrolled = tutor_utils()->is_enrolled(); |
| 1272 | |
| 1273 | return array_filter( |
| 1274 | $items, |
| 1275 | function( $item ) use ( $is_enrolled ) { |
| 1276 | if ( isset( $item['require_enrolment'] ) && $item['require_enrolment'] ) { |
| 1277 | return $is_enrolled; |
| 1278 | } |
| 1279 | return true; |
| 1280 | } |
| 1281 | ); |
| 1282 | } |
| 1283 | |
| 1284 | /** |
| 1285 | * Filter product in shop page |
| 1286 | * |
| 1287 | * @since 1.4.9 |
| 1288 | * @return void|null |
| 1289 | */ |
| 1290 | public function filter_product_in_shop_page() { |
| 1291 | $hide_course_from_shop_page = (bool) get_tutor_option( 'hide_course_from_shop_page' ); |
| 1292 | if ( ! $hide_course_from_shop_page ) { |
| 1293 | return; |
| 1294 | } |
| 1295 | add_action( 'woocommerce_product_query', array( $this, 'filter_woocommerce_product_query' ) ); |
| 1296 | add_filter( 'edd_downloads_query', array( $this, 'filter_edd_downloads_query' ), 10, 2 ); |
| 1297 | add_action( 'pre_get_posts', array( $this, 'filter_archive_meta_query' ), 1 ); |
| 1298 | } |
| 1299 | |
| 1300 | /** |
| 1301 | * Tutor product meta query |
| 1302 | * |
| 1303 | * @since 1.4.9 |
| 1304 | * @return array |
| 1305 | */ |
| 1306 | public function tutor_product_meta_query() { |
| 1307 | $meta_query = array( |
| 1308 | 'key' => '_tutor_product', |
| 1309 | 'compare' => 'NOT EXISTS', |
| 1310 | ); |
| 1311 | return $meta_query; |
| 1312 | } |
| 1313 | |
| 1314 | /** |
| 1315 | * Filter product in woocommerce shop page |
| 1316 | * |
| 1317 | * @since 1.4.9 |
| 1318 | * |
| 1319 | * @param \WP_Query $wp_query WP Query instance. |
| 1320 | * @return \WP_Query |
| 1321 | */ |
| 1322 | public function filter_woocommerce_product_query( $wp_query ) { |
| 1323 | $wp_query->set( 'meta_query', array( $this->tutor_product_meta_query() ) ); |
| 1324 | return $wp_query; |
| 1325 | } |
| 1326 | |
| 1327 | /** |
| 1328 | * Filter product in edd downloads shortcode page |
| 1329 | * |
| 1330 | * @since 1.4.9 |
| 1331 | * |
| 1332 | * @param \WP_Query $query WP Query instance. |
| 1333 | * @return \WP_Query |
| 1334 | */ |
| 1335 | public function filter_edd_downloads_query( $query ) { |
| 1336 | $query['meta_query'][] = $this->tutor_product_meta_query(); |
| 1337 | return $query; |
| 1338 | } |
| 1339 | |
| 1340 | /** |
| 1341 | * Filter product in edd downloads archive page |
| 1342 | * |
| 1343 | * @since 1.4.9 |
| 1344 | * |
| 1345 | * @param \WP_Query $wp_query WP Query instance. |
| 1346 | * @return \WP_Query |
| 1347 | */ |
| 1348 | public function filter_archive_meta_query( $wp_query ) { |
| 1349 | if ( ! is_admin() && $wp_query->is_archive && $wp_query->get( 'post_type' ) === 'download' ) { |
| 1350 | $wp_query->set( 'meta_query', array( $this->tutor_product_meta_query() ) ); |
| 1351 | } |
| 1352 | return $wp_query; |
| 1353 | } |
| 1354 | |
| 1355 | /** |
| 1356 | * Removed course price if already enrolled at single course |
| 1357 | * |
| 1358 | * @since 1.5.8 |
| 1359 | * |
| 1360 | * @param string $html HTML string. |
| 1361 | * @return string |
| 1362 | */ |
| 1363 | public function remove_price_if_enrolled( $html ) { |
| 1364 | $should_removed = apply_filters( 'should_remove_price_if_enrolled', true ); |
| 1365 | |
| 1366 | if ( $should_removed ) { |
| 1367 | $course_id = get_the_ID(); |
| 1368 | $enrolled = tutor_utils()->is_enrolled( $course_id ); |
| 1369 | if ( $enrolled ) { |
| 1370 | $html = ''; |
| 1371 | } |
| 1372 | } |
| 1373 | return $html; |
| 1374 | } |
| 1375 | |
| 1376 | /** |
| 1377 | * Check if all lessons and quizzes done before mark course complete. |
| 1378 | * |
| 1379 | * @since 1.5.8 |
| 1380 | * |
| 1381 | * @param string $html HTML string. |
| 1382 | * @return string |
| 1383 | */ |
| 1384 | public function tutor_lms_hide_course_complete_btn( $html ) { |
| 1385 | |
| 1386 | $completion_mode = tutor_utils()->get_option( 'course_completion_process' ); |
| 1387 | if ( 'strict' !== $completion_mode ) { |
| 1388 | return $html; |
| 1389 | } |
| 1390 | |
| 1391 | $completed_lesson = tutor_utils()->get_completed_lesson_count_by_course(); |
| 1392 | $lesson_count = tutor_utils()->get_lesson_count_by_course(); |
| 1393 | |
| 1394 | if ( $completed_lesson < $lesson_count ) { |
| 1395 | return '<div class="tutor-alert tutor-warning tutor-mt-28"> |
| 1396 | <div class="tutor-alert-text"> |
| 1397 | <span class="tutor-alert-icon tutor-fs-4 tutor-icon-circle-info tutor-mr-12"></span> |
| 1398 | <span>' . __( 'Complete all lessons to mark this course as complete', 'tutor' ) . '</span> |
| 1399 | </div> |
| 1400 | </div>'; |
| 1401 | } |
| 1402 | |
| 1403 | $quizzes = array(); |
| 1404 | $assignments = array(); |
| 1405 | |
| 1406 | $course_contents = tutor_utils()->get_course_contents_by_id(); |
| 1407 | if ( tutor_utils()->count( $course_contents ) ) { |
| 1408 | foreach ( $course_contents as $content ) { |
| 1409 | if ( 'tutor_quiz' === $content->post_type ) { |
| 1410 | $quizzes[] = $content; |
| 1411 | } |
| 1412 | if ( 'tutor_assignments' === $content->post_type ) { |
| 1413 | $assignments[] = $content; |
| 1414 | } |
| 1415 | } |
| 1416 | } |
| 1417 | |
| 1418 | $required_assignment_pass = 0; |
| 1419 | |
| 1420 | foreach ( $assignments as $row ) { |
| 1421 | |
| 1422 | $submitted_assignment = tutor_utils()->is_assignment_submitted( $row->ID ); |
| 1423 | $is_reviewed_by_instructor = null === $submitted_assignment |
| 1424 | ? false |
| 1425 | : get_comment_meta( $submitted_assignment->comment_ID, 'evaluate_time', true ); |
| 1426 | |
| 1427 | if ( $submitted_assignment && $is_reviewed_by_instructor ) { |
| 1428 | $pass_mark = tutor_utils()->get_assignment_option( $submitted_assignment->comment_post_ID, 'pass_mark' ); |
| 1429 | $given_mark = get_comment_meta( $submitted_assignment->comment_ID, 'assignment_mark', true ); |
| 1430 | |
| 1431 | if ( $given_mark < $pass_mark ) { |
| 1432 | $required_assignment_pass++; |
| 1433 | } |
| 1434 | } else { |
| 1435 | $required_assignment_pass++; |
| 1436 | } |
| 1437 | } |
| 1438 | |
| 1439 | $is_quiz_pass = true; |
| 1440 | $required_quiz_pass = 0; |
| 1441 | |
| 1442 | if ( tutor_utils()->count( $quizzes ) ) { |
| 1443 | foreach ( $quizzes as $quiz ) { |
| 1444 | |
| 1445 | $attempt = tutor_utils()->get_quiz_attempt( $quiz->ID ); |
| 1446 | if ( $attempt ) { |
| 1447 | $passing_grade = tutor_utils()->get_quiz_option( $quiz->ID, 'passing_grade', 0 ); |
| 1448 | $earned_percentage = $attempt->earned_marks > 0 ? ( number_format( ( $attempt->earned_marks * 100 ) / $attempt->total_marks ) ) : 0; |
| 1449 | |
| 1450 | if ( $earned_percentage < $passing_grade ) { |
| 1451 | $required_quiz_pass++; |
| 1452 | $is_quiz_pass = false; |
| 1453 | } |
| 1454 | } else { |
| 1455 | $required_quiz_pass++; |
| 1456 | $is_quiz_pass = false; |
| 1457 | } |
| 1458 | } |
| 1459 | } |
| 1460 | |
| 1461 | if ( ! $is_quiz_pass || $required_assignment_pass > 0 ) { |
| 1462 | $_msg = ''; |
| 1463 | $quiz_str = _n( 'quiz', 'quizzes', $required_quiz_pass, 'tutor' ); |
| 1464 | $assignment_str = _n( 'assignment', 'assignments', $required_assignment_pass, 'tutor' ); |
| 1465 | |
| 1466 | if ( ! $is_quiz_pass && 0 == $required_assignment_pass ) { |
| 1467 | /* translators: %s: number of quiz pass required */ |
| 1468 | $_msg = sprintf( __( 'You have to pass %1$s %2$s to complete this course.', 'tutor' ), $required_quiz_pass, $quiz_str ); |
| 1469 | } |
| 1470 | if ( $is_quiz_pass && $required_assignment_pass > 0 ) { |
| 1471 | /* translators: %s: number of assignment pass required */ |
| 1472 | $_msg = sprintf( __( 'You have to pass %1$s %2$s to complete this course.', 'tutor' ), $required_assignment_pass, $assignment_str ); |
| 1473 | } |
| 1474 | if ( ! $is_quiz_pass && $required_assignment_pass > 0 ) { |
| 1475 | /* translators: %s: number of quiz pass required */ |
| 1476 | $_msg = sprintf( __( 'You have to pass %1$s %2$s and %3$s %4$s to complete this course.', 'tutor' ), $required_quiz_pass, $quiz_str, $required_assignment_pass, $assignment_str ); |
| 1477 | } |
| 1478 | |
| 1479 | return '<div class="tutor-alert tutor-warning tutor-mt-28"> |
| 1480 | <div class="tutor-alert-text"> |
| 1481 | <span class="tutor-alert-icon tutor-fs-4 tutor-icon-circle-info tutor-mr-12"></span> |
| 1482 | <span>' . $_msg . '</span> |
| 1483 | </div> |
| 1484 | </div>'; |
| 1485 | } |
| 1486 | |
| 1487 | return $html; |
| 1488 | } |
| 1489 | |
| 1490 | /** |
| 1491 | * Generate Gradebook |
| 1492 | * |
| 1493 | * @since 1.5.8 |
| 1494 | * |
| 1495 | * @param string $html HTML string. |
| 1496 | * @return string |
| 1497 | */ |
| 1498 | public function get_generate_greadbook( $html ) { |
| 1499 | if ( ! tutor_utils()->is_completed_course() ) { |
| 1500 | return ''; |
| 1501 | } |
| 1502 | return $html; |
| 1503 | } |
| 1504 | |
| 1505 | /** |
| 1506 | * Add social share content in header |
| 1507 | * |
| 1508 | * @since 1.6.3 |
| 1509 | * @return void |
| 1510 | */ |
| 1511 | public function social_share_content() { |
| 1512 | global $wp_query, $post; |
| 1513 | if ( $wp_query->is_single && ! empty( $wp_query->query_vars['post_type'] ) && $wp_query->query_vars['post_type'] === $this->course_post_type ) { ?> |
| 1514 | <!--Facebook--> |
| 1515 | <meta property="og:type" content="website"/> |
| 1516 | <meta property="og:image" content="<?php echo esc_url( get_tutor_course_thumbnail_src() ); ?>" /> |
| 1517 | <meta property="og:description" content="<?php echo esc_html( $post->post_content ); ?>" /> |
| 1518 | <!--Twitter--> |
| 1519 | <meta name="twitter:image" content="<?php echo esc_url( get_tutor_course_thumbnail_src() ); ?>"> |
| 1520 | <meta name="twitter:description" content="<?php echo esc_html( $post->post_content ); ?>"> |
| 1521 | <!--Google+--> |
| 1522 | <meta itemprop="image" content="<?php echo esc_url( get_tutor_course_thumbnail_src() ); ?>"> |
| 1523 | <meta itemprop="description" content="<?php echo esc_html( $post->post_content ); ?>"> |
| 1524 | <?php |
| 1525 | } |
| 1526 | } |
| 1527 | |
| 1528 | /** |
| 1529 | * Delete associated enrollment |
| 1530 | * |
| 1531 | * @since 1.8.2 |
| 1532 | * |
| 1533 | * @param integer $post_id post ID. |
| 1534 | * @return void |
| 1535 | */ |
| 1536 | public function delete_associated_enrollment( $post_id ) { |
| 1537 | global $wpdb; |
| 1538 | |
| 1539 | $enroll_id = $wpdb->get_var( |
| 1540 | $wpdb->prepare( |
| 1541 | "SELECT |
| 1542 | post_id |
| 1543 | FROM |
| 1544 | {$wpdb->postmeta} |
| 1545 | WHERE |
| 1546 | meta_key='_tutor_enrolled_by_order_id' |
| 1547 | AND meta_value = %d |
| 1548 | ", |
| 1549 | $post_id |
| 1550 | ) |
| 1551 | ); |
| 1552 | |
| 1553 | if ( is_numeric( $enroll_id ) && $enroll_id > 0 ) { |
| 1554 | |
| 1555 | $course_id = get_post_field( 'post_parent', $enroll_id ); |
| 1556 | $user_id = get_post_field( 'post_author', $enroll_id ); |
| 1557 | |
| 1558 | tutor_utils()->cancel_course_enrol( $course_id, $user_id ); |
| 1559 | } |
| 1560 | } |
| 1561 | |
| 1562 | /** |
| 1563 | * Reset course progress. |
| 1564 | * |
| 1565 | * @since 1.5.8 |
| 1566 | * @return void |
| 1567 | */ |
| 1568 | public function tutor_reset_course_progress() { |
| 1569 | tutor_utils()->checking_nonce(); |
| 1570 | $course_id = Input::post( 'course_id' ); |
| 1571 | |
| 1572 | if ( ! $course_id || ! is_numeric( $course_id ) || ! tutor_utils()->is_enrolled( $course_id ) ) { |
| 1573 | wp_send_json_error( array( 'message' => __( 'Invalid Course ID or Access Denied.', 'tutor' ) ) ); |
| 1574 | return; |
| 1575 | } |
| 1576 | |
| 1577 | tutor_utils()->delete_course_progress( $course_id ); |
| 1578 | wp_send_json_success( array( 'redirect_to' => tutor_utils()->get_course_first_lesson( $course_id ) ) ); |
| 1579 | } |
| 1580 | |
| 1581 | /** |
| 1582 | * Do enroll if guest attempt to enroll and course is free |
| 1583 | * |
| 1584 | * @since 1.9.8 |
| 1585 | * |
| 1586 | * @param integer $course_id course ID. |
| 1587 | * @param integer $user_id user ID. |
| 1588 | |
| 1589 | * @return void |
| 1590 | */ |
| 1591 | public function enroll_after_login_if_attempt( int $course_id, int $user_id ) { |
| 1592 | $course_id = sanitize_text_field( $course_id ); |
| 1593 | if ( $course_id ) { |
| 1594 | $is_purchasable = tutor_utils()->is_course_purchasable( $course_id ); |
| 1595 | if ( ! $is_purchasable ) { |
| 1596 | tutor_utils()->do_enroll( $course_id, $order_id = 0, $user_id ); |
| 1597 | do_action( 'guest_attempt_after_enrollment', $course_id ); |
| 1598 | } |
| 1599 | } |
| 1600 | } |
| 1601 | |
| 1602 | /** |
| 1603 | * Handle course enrollment |
| 1604 | * |
| 1605 | * @since 2.1.0 |
| 1606 | * @return void |
| 1607 | */ |
| 1608 | public function course_enrollment() { |
| 1609 | tutor_utils()->checking_nonce(); |
| 1610 | |
| 1611 | $course_id = Input::post( 'course_id', 0, Input::TYPE_INT ); |
| 1612 | $user_id = get_current_user_id(); |
| 1613 | |
| 1614 | if ( $course_id ) { |
| 1615 | $enroll = tutor_utils()->do_enroll( $course_id, 0, $user_id ); |
| 1616 | if ( $enroll ) { |
| 1617 | wp_send_json_success( __( 'Enrollment successfully done!', 'tutor' ) ); |
| 1618 | } else { |
| 1619 | wp_send_json_error( __( 'Enrollment failed, please try again!', 'tutor' ) ); |
| 1620 | } |
| 1621 | } else { |
| 1622 | wp_send_json_error( __( 'Invalid course ID', 'tutor' ) ); |
| 1623 | } |
| 1624 | } |
| 1625 | } |
| 1626 |