| 1 |
<?php |
| 2 |
namespace TUTOR; |
| 3 |
|
| 4 |
if ( ! defined( 'ABSPATH' ) ) |
| 5 |
exit; |
| 6 |
|
| 7 |
class Course extends Tutor_Base { |
| 8 |
public function __construct() { |
| 9 |
parent::__construct(); |
| 10 |
|
| 11 |
add_action( 'add_meta_boxes', array($this, 'register_meta_box') ); |
| 12 |
add_action('save_post_'.$this->course_post_type, array($this, 'save_course_meta'), 10, 2); |
| 13 |
add_action('wp_ajax_tutor_add_course_topic', array($this, 'tutor_add_course_topic')); |
| 14 |
add_action('wp_ajax_tutor_update_topic', array($this, 'tutor_update_topic')); |
| 15 |
|
| 16 |
//Add Column |
| 17 |
add_filter( "manage_{$this->course_post_type}_posts_columns", array($this, 'add_column'), 10,1 ); |
| 18 |
add_action( "manage_{$this->course_post_type}_posts_custom_column" , array($this, 'custom_lesson_column'), 10, 2 ); |
| 19 |
|
| 20 |
add_action('admin_action_tutor_delete_topic', array($this, 'tutor_delete_topic')); |
| 21 |
add_action('admin_action_tutor_delete_announcement', array($this, 'tutor_delete_announcement')); |
| 22 |
|
| 23 |
//Frontend Action |
| 24 |
add_action('template_redirect', array($this, 'enroll_now')); |
| 25 |
add_action('template_redirect', array($this, 'mark_course_complete')); |
| 26 |
|
| 27 |
//Modal Perform |
| 28 |
add_action('wp_ajax_tutor_load_instructors_modal', array($this, 'tutor_load_instructors_modal')); |
| 29 |
add_action('wp_ajax_tutor_add_instructors_to_course', array($this, 'tutor_add_instructors_to_course')); |
| 30 |
add_action('wp_ajax_detach_instructor_from_course', array($this, 'detach_instructor_from_course')); |
| 31 |
} |
| 32 |
/** |
| 33 |
* Registering metabox |
| 34 |
*/ |
| 35 |
public function register_meta_box(){ |
| 36 |
$coursePostType = tutor()->course_post_type; |
| 37 |
|
| 38 |
add_meta_box( 'tutor-course-topics', __( 'Course Builder', 'tutor' ), array($this, 'course_meta_box'), $coursePostType ); |
| 39 |
add_meta_box( 'tutor-course-additional-data', __( 'Additional Data', 'tutor' ), array($this, 'course_additional_data_meta_box'), $coursePostType ); |
| 40 |
add_meta_box( 'tutor-course-videos', __( 'Video', 'tutor' ), array($this, 'video_metabox'), $coursePostType ); |
| 41 |
add_meta_box( 'tutor-instructors', __( 'Instructors', 'tutor' ), array($this, 'instructors_metabox'), $coursePostType ); |
| 42 |
add_meta_box( 'tutor-announcements', __( 'Announcements', 'tutor' ), array($this, 'announcements_metabox'), $coursePostType ); |
| 43 |
} |
| 44 |
public function course_meta_box(){ |
| 45 |
include tutor()->path.'views/metabox/course-topics.php'; |
| 46 |
} |
| 47 |
public function course_additional_data_meta_box(){ |
| 48 |
include tutor()->path.'views/metabox/course-additional-data.php'; |
| 49 |
} |
| 50 |
public function video_metabox(){ |
| 51 |
include tutor()->path.'views/metabox/video-metabox.php'; |
| 52 |
} |
| 53 |
|
| 54 |
public function announcements_metabox(){ |
| 55 |
include tutor()->path.'views/metabox/announcements-metabox.php'; |
| 56 |
} |
| 57 |
|
| 58 |
public function instructors_metabox(){ |
| 59 |
include tutor()->path.'views/metabox/instructors-metabox.php'; |
| 60 |
} |
| 61 |
|
| 62 |
/** |
| 63 |
* @param $post_ID |
| 64 |
* |
| 65 |
* Insert Topic and attached it with Course |
| 66 |
*/ |
| 67 |
public function save_course_meta($post_ID, $post){ |
| 68 |
global $wpdb; |
| 69 |
/** |
| 70 |
* Insert Topic |
| 71 |
*/ |
| 72 |
if ( ! empty($_POST['topic_title'])) { |
| 73 |
$topic_title = sanitize_text_field( $_POST['topic_title'] ); |
| 74 |
$topic_summery = wp_kses_post( $_POST['topic_summery'] ); |
| 75 |
|
| 76 |
$post_arr = array( |
| 77 |
'post_type' => 'topics', |
| 78 |
'post_title' => $topic_title, |
| 79 |
'post_content' => $topic_summery, |
| 80 |
'post_status' => 'publish', |
| 81 |
'post_author' => get_current_user_id(), |
| 82 |
'post_parent' => $post_ID, |
| 83 |
); |
| 84 |
wp_insert_post( $post_arr ); |
| 85 |
} |
| 86 |
|
| 87 |
//Course Duration |
| 88 |
if ( ! empty($_POST['course_duration'])){ |
| 89 |
$video = tutor_utils()->sanitize_array($_POST['course_duration']); |
| 90 |
update_post_meta($post_ID, '_course_duration', $video); |
| 91 |
} |
| 92 |
|
| 93 |
if ( ! empty($_POST['course_level'])){ |
| 94 |
$course_level = sanitize_text_field($_POST['course_level']); |
| 95 |
update_post_meta($post_ID, '_tutor_course_level', $course_level); |
| 96 |
} |
| 97 |
|
| 98 |
if ( ! empty($_POST['course_benefits'])){ |
| 99 |
$course_benefits = wp_kses_post($_POST['course_benefits']); |
| 100 |
update_post_meta($post_ID, '_tutor_course_benefits', $course_benefits); |
| 101 |
} |
| 102 |
|
| 103 |
if ( ! empty($_POST['course_requirements'])){ |
| 104 |
$requirements = wp_kses_post($_POST['course_requirements']); |
| 105 |
update_post_meta($post_ID, '_tutor_course_requirements', $requirements); |
| 106 |
} |
| 107 |
|
| 108 |
if ( ! empty($_POST['course_target_audience'])){ |
| 109 |
$target_audience = wp_kses_post($_POST['course_target_audience']); |
| 110 |
update_post_meta($post_ID, '_tutor_course_target_audience', $target_audience); |
| 111 |
} |
| 112 |
|
| 113 |
if ( ! empty($_POST['course_material_includes'])){ |
| 114 |
$material_includes = wp_kses_post($_POST['course_material_includes']); |
| 115 |
update_post_meta($post_ID, '_tutor_course_material_includes', $material_includes); |
| 116 |
} |
| 117 |
/** |
| 118 |
* Sorting Topics and lesson |
| 119 |
*/ |
| 120 |
if ( ! empty($_POST['tutor_topics_lessons_sorting'])){ |
| 121 |
$new_order = sanitize_text_field(stripslashes($_POST['tutor_topics_lessons_sorting'])); |
| 122 |
$order = json_decode($new_order, true); |
| 123 |
|
| 124 |
if (is_array($order) && count($order)){ |
| 125 |
$i = 0; |
| 126 |
foreach ($order as $topic ){ |
| 127 |
$i++; |
| 128 |
$wpdb->update( |
| 129 |
$wpdb->posts, |
| 130 |
array('menu_order' => $i), |
| 131 |
array('ID' => $topic['topic_id']) |
| 132 |
); |
| 133 |
|
| 134 |
/** |
| 135 |
* Removing All lesson with topic |
| 136 |
*/ |
| 137 |
|
| 138 |
$wpdb->update( |
| 139 |
$wpdb->posts, |
| 140 |
array('post_parent' => 0), |
| 141 |
array('post_parent' => $topic['topic_id']) |
| 142 |
); |
| 143 |
|
| 144 |
/** |
| 145 |
* Lesson Attaching with topic ID |
| 146 |
* sorting lesson |
| 147 |
*/ |
| 148 |
if (isset($topic['lesson_ids'])){ |
| 149 |
$lesson_ids = $topic['lesson_ids']; |
| 150 |
}else{ |
| 151 |
$lesson_ids = array(); |
| 152 |
} |
| 153 |
if (count($lesson_ids)){ |
| 154 |
foreach ($lesson_ids as $lesson_key => $lesson_id ){ |
| 155 |
$wpdb->update( |
| 156 |
$wpdb->posts, |
| 157 |
array('post_parent' => $topic['topic_id'], 'menu_order' => $lesson_key), |
| 158 |
array('ID' => $lesson_id) |
| 159 |
); |
| 160 |
} |
| 161 |
} |
| 162 |
} |
| 163 |
} |
| 164 |
} |
| 165 |
|
| 166 |
|
| 167 |
//Video |
| 168 |
if ( ! empty($_POST['video']['source'])){ |
| 169 |
$video = tutor_utils()->sanitize_array($_POST['video']); |
| 170 |
update_post_meta($post_ID, '_video', $video); |
| 171 |
} |
| 172 |
|
| 173 |
/** |
| 174 |
* Adding author to instructor automatically |
| 175 |
*/ |
| 176 |
|
| 177 |
$author_id = $post->post_author; |
| 178 |
$attached = (int) $wpdb->get_var(" SELECT COUNT(umeta_id) FROM {$wpdb->usermeta} WHERE user_id = {$author_id} AND meta_key = '_tutor_instructor_course_id' AND meta_value = {$post_ID} "); |
| 179 |
if ( ! $attached){ |
| 180 |
add_user_meta($author_id, '_tutor_instructor_course_id', $post_ID); |
| 181 |
} |
| 182 |
|
| 183 |
//Announcements |
| 184 |
$announcement_title = tutor_utils()->avalue_dot('announcements.title', $_POST ); |
| 185 |
if ( ! empty($announcement_title)){ |
| 186 |
$title = sanitize_text_field(tutor_utils()->avalue_dot('announcements.title', $_POST )); |
| 187 |
$content = wp_kses_post(tutor_utils()->avalue_dot('announcements.content', $_POST )); |
| 188 |
|
| 189 |
$post_arr = array( |
| 190 |
'post_type' => 'tutor_announcements', |
| 191 |
'post_title' => $title, |
| 192 |
'post_content' => $content, |
| 193 |
'post_status' => 'publish', |
| 194 |
'post_author' => get_current_user_id(), |
| 195 |
'post_parent' => $post_ID, |
| 196 |
); |
| 197 |
wp_insert_post( $post_arr ); |
| 198 |
} |
| 199 |
} |
| 200 |
|
| 201 |
/** |
| 202 |
* Tutor add course topic |
| 203 |
*/ |
| 204 |
public function tutor_add_course_topic(){ |
| 205 |
if (empty($_POST['topic_title'])) { |
| 206 |
wp_send_json_error(); |
| 207 |
} |
| 208 |
$course_id = (int) tutor_utils()->avalue_dot('tutor_topic_course_ID', $_POST); |
| 209 |
$next_topic_order_id = tutor_utils()->get_next_topic_order_id($course_id); |
| 210 |
|
| 211 |
$topic_title = sanitize_text_field( $_POST['topic_title'] ); |
| 212 |
$topic_summery = wp_kses_post( $_POST['topic_summery'] ); |
| 213 |
|
| 214 |
$post_arr = array( |
| 215 |
'post_type' => 'topics', |
| 216 |
'post_title' => $topic_title, |
| 217 |
'post_content' => $topic_summery, |
| 218 |
'post_status' => 'publish', |
| 219 |
'post_author' => get_current_user_id(), |
| 220 |
'post_parent' => $course_id, |
| 221 |
'menu_order' => $next_topic_order_id, |
| 222 |
); |
| 223 |
$current_topic_id = wp_insert_post( $post_arr ); |
| 224 |
|
| 225 |
ob_start(); |
| 226 |
include tutor()->path.'views/metabox/course-contents.php'; |
| 227 |
$course_contents = ob_get_clean(); |
| 228 |
|
| 229 |
wp_send_json_success(array('course_contents' => $course_contents)); |
| 230 |
} |
| 231 |
|
| 232 |
/** |
| 233 |
* Update the topic |
| 234 |
*/ |
| 235 |
public function tutor_update_topic(){ |
| 236 |
$topic_id = (int) sanitize_text_field($_POST['topic_id']); |
| 237 |
$topic_title = sanitize_text_field($_POST['topic_title']); |
| 238 |
$topic_summery = wp_kses_post($_POST['topic_summery']); |
| 239 |
|
| 240 |
$topic_attr = array( |
| 241 |
'ID' => $topic_id, |
| 242 |
'post_title' => $topic_title, |
| 243 |
'post_content' => $topic_summery, |
| 244 |
); |
| 245 |
wp_update_post( $topic_attr ); |
| 246 |
|
| 247 |
wp_send_json_success(array('msg' => __('Topic has been updated', 'tutor') )); |
| 248 |
} |
| 249 |
|
| 250 |
|
| 251 |
/** |
| 252 |
* @param $columns |
| 253 |
* |
| 254 |
* @return mixed |
| 255 |
* |
| 256 |
* Add Lesson column |
| 257 |
*/ |
| 258 |
|
| 259 |
public function add_column($columns){ |
| 260 |
$date_col = $columns['date']; |
| 261 |
unset($columns['date']); |
| 262 |
$columns['lessons'] = __('Lessons', 'tutor'); |
| 263 |
$columns['students'] = __('Students', 'tutor'); |
| 264 |
$columns['price'] = __('Price', 'tutor'); |
| 265 |
$columns['date'] = $date_col; |
| 266 |
|
| 267 |
return $columns; |
| 268 |
} |
| 269 |
|
| 270 |
/** |
| 271 |
* @param $column |
| 272 |
* @param $post_id |
| 273 |
* |
| 274 |
*/ |
| 275 |
public function custom_lesson_column($column, $post_id ){ |
| 276 |
if ($column === 'lessons'){ |
| 277 |
echo tutor_utils()->get_lesson_count_by_course($post_id); |
| 278 |
} |
| 279 |
|
| 280 |
if ($column === 'students'){ |
| 281 |
echo tutor_utils()->count_enrolled_users_by_course($post_id); |
| 282 |
} |
| 283 |
|
| 284 |
if ($column === 'price'){ |
| 285 |
$price = tutor_utils()->get_course_price($post_id); |
| 286 |
|
| 287 |
if ($price){ |
| 288 |
if (function_exists('wc_price')){ |
| 289 |
echo '<span class="tutor-label-success">'.wc_price($price).'</span>'; |
| 290 |
}else{ |
| 291 |
echo '<span class="tutor-label-success">'.$price.'</span>'; |
| 292 |
} |
| 293 |
}else{ |
| 294 |
echo 'free'; |
| 295 |
} |
| 296 |
} |
| 297 |
} |
| 298 |
|
| 299 |
|
| 300 |
public function tutor_delete_topic(){ |
| 301 |
if (!isset($_GET[tutor()->nonce]) || !wp_verify_nonce($_GET[tutor()->nonce], tutor()->nonce_action)) { |
| 302 |
exit(); |
| 303 |
} |
| 304 |
if ( ! isset($_GET['topic_id'])){ |
| 305 |
exit(); |
| 306 |
} |
| 307 |
|
| 308 |
global $wpdb; |
| 309 |
|
| 310 |
$topic_id = (int) sanitize_text_field($_GET['topic_id']); |
| 311 |
$wpdb->update( |
| 312 |
$wpdb->posts, |
| 313 |
array('post_parent' => 0), |
| 314 |
array('post_parent' => $topic_id) |
| 315 |
); |
| 316 |
|
| 317 |
$wpdb->delete( |
| 318 |
$wpdb->postmeta, |
| 319 |
array('post_id' => $topic_id) |
| 320 |
); |
| 321 |
|
| 322 |
wp_delete_post($topic_id); |
| 323 |
wp_safe_redirect(wp_get_referer()); |
| 324 |
} |
| 325 |
|
| 326 |
public function tutor_delete_announcement(){ |
| 327 |
tutor_utils()->checking_nonce('get'); |
| 328 |
|
| 329 |
$announcement_id = (int) sanitize_text_field($_GET['topic_id']); |
| 330 |
|
| 331 |
wp_delete_post($announcement_id); |
| 332 |
wp_safe_redirect(wp_get_referer()); |
| 333 |
} |
| 334 |
|
| 335 |
public function enroll_now(){ |
| 336 |
//Checking if action comes from Enroll form |
| 337 |
if ( ! isset($_POST['tutor_course_action']) || $_POST['tutor_course_action'] !== '_tutor_course_enroll_now' || ! isset($_POST['tutor_course_id']) ){ |
| 338 |
return; |
| 339 |
} |
| 340 |
//Checking Nonce |
| 341 |
tutor_utils()->checking_nonce(); |
| 342 |
|
| 343 |
$user_id = get_current_user_id(); |
| 344 |
if ( ! $user_id){ |
| 345 |
exit(__('Please Sign In first', 'tutor')); |
| 346 |
} |
| 347 |
|
| 348 |
$course_id = (int) sanitize_text_field($_POST['tutor_course_id']); |
| 349 |
$user_id = get_current_user_id(); |
| 350 |
|
| 351 |
/** |
| 352 |
* TODO: need to check purchase information |
| 353 |
*/ |
| 354 |
|
| 355 |
$is_purchasable = tutor_utils()->is_course_purchasable($course_id); |
| 356 |
|
| 357 |
/** |
| 358 |
* If is is not purchasable, it's free, and enroll right now |
| 359 |
* |
| 360 |
* if purchasable, then process purchase. |
| 361 |
* |
| 362 |
* @since: v.1.0.0 |
| 363 |
*/ |
| 364 |
if ($is_purchasable){ |
| 365 |
//process purchase |
| 366 |
|
| 367 |
}else{ |
| 368 |
//Free enroll |
| 369 |
tutor_utils()->do_enroll($course_id); |
| 370 |
} |
| 371 |
|
| 372 |
$referer_url = wp_get_referer(); |
| 373 |
wp_redirect($referer_url); |
| 374 |
} |
| 375 |
|
| 376 |
/** |
| 377 |
* |
| 378 |
* Mark complete completed |
| 379 |
* |
| 380 |
* @since v.1.0.0 |
| 381 |
*/ |
| 382 |
public function mark_course_complete(){ |
| 383 |
if ( ! isset($_POST['tutor_action']) || $_POST['tutor_action'] !== 'tutor_complete_course' ){ |
| 384 |
return; |
| 385 |
} |
| 386 |
//Checking nonce |
| 387 |
tutor_utils()->checking_nonce(); |
| 388 |
|
| 389 |
$user_id = get_current_user_id(); |
| 390 |
|
| 391 |
//TODO: need to show view if not signed_in |
| 392 |
if ( ! $user_id){ |
| 393 |
die(__('Please Sign-In', 'tutor')); |
| 394 |
} |
| 395 |
|
| 396 |
$course_id = (int) sanitize_text_field($_POST['course_id']); |
| 397 |
|
| 398 |
do_action('tutor_course_complete_before', $course_id); |
| 399 |
/** |
| 400 |
* Marking course completed at Comment |
| 401 |
*/ |
| 402 |
|
| 403 |
global $wpdb; |
| 404 |
|
| 405 |
$date = date("Y-m-d H:i:s"); |
| 406 |
|
| 407 |
//Making sure that, hash is unique |
| 408 |
do{ |
| 409 |
$hash = substr(md5(wp_generate_password(32).$date.$course_id.$user_id), 0, 16); |
| 410 |
$hasHash = (int) $wpdb->get_var("SELECT COUNT(comment_ID) from {$wpdb->comments} WHERE comment_agent = 'TutorLMSPlugin' AND comment_type = 'course_completed' AND comment_content = '{$hash}' "); |
| 411 |
}while($hasHash > 0); |
| 412 |
|
| 413 |
$data = array( |
| 414 |
'comment_post_ID' => $course_id, |
| 415 |
'comment_author' => $user_id, |
| 416 |
'comment_date' => $date, |
| 417 |
'comment_date_gmt' => get_gmt_from_date($date), |
| 418 |
'comment_content' => $hash, //Identification Hash |
| 419 |
'comment_approved' => 'approved', |
| 420 |
'comment_agent' => 'TutorLMSPlugin', |
| 421 |
'comment_type' => 'course_completed', |
| 422 |
'user_id' => $user_id, |
| 423 |
); |
| 424 |
|
| 425 |
$wpdb->insert($wpdb->comments, $data); |
| 426 |
|
| 427 |
do_action('tutor_course_complete_after', $course_id); |
| 428 |
|
| 429 |
wp_redirect(get_the_permalink($course_id)); |
| 430 |
} |
| 431 |
|
| 432 |
|
| 433 |
public function tutor_load_instructors_modal(){ |
| 434 |
global $wpdb; |
| 435 |
|
| 436 |
$course_id = (int) sanitize_text_field($_POST['course_id']); |
| 437 |
$search_terms = sanitize_text_field(tutor_utils()->avalue_dot('search_terms', $_POST)); |
| 438 |
|
| 439 |
$saved_instructors = tutor_utils()->get_instructors_by_course($course_id); |
| 440 |
|
| 441 |
$instructors = array(); |
| 442 |
|
| 443 |
|
| 444 |
$not_in_sql = apply_filters('tutor_instructor_query_when_exists', " AND ID <1 "); |
| 445 |
|
| 446 |
if ($saved_instructors){ |
| 447 |
$saved_instructors_ids = wp_list_pluck($saved_instructors, 'ID'); |
| 448 |
$instructor_not_in_ids = implode(',', $saved_instructors_ids); |
| 449 |
$not_in_sql .= "AND ID NOT IN($instructor_not_in_ids) "; |
| 450 |
} |
| 451 |
|
| 452 |
$search_sql = ''; |
| 453 |
if ($search_terms){ |
| 454 |
$search_sql = "AND user_login like '%{$search_terms}%' or user_nicename like '%{$search_terms}%' or display_name like '%{$search_terms}%' "; |
| 455 |
} |
| 456 |
|
| 457 |
$instructors = $wpdb->get_results("select ID, display_name from {$wpdb->users} |
| 458 |
INNER JOIN {$wpdb->usermeta} ON ID = user_id AND meta_key = '_tutor_instructor_status' AND meta_value = 'approved' |
| 459 |
WHERE ID > 0 {$not_in_sql} {$search_sql} limit 10 "); |
| 460 |
|
| 461 |
$output = ''; |
| 462 |
if (is_array($instructors) && count($instructors)){ |
| 463 |
$instructor_output = ''; |
| 464 |
foreach ($instructors as $instructor){ |
| 465 |
$instructor_output .= "<p><label><input type='radio' name='tutor_instructor_ids[]' value='{$instructor->ID}' > {$instructor->display_name} </label></p>"; |
| 466 |
} |
| 467 |
|
| 468 |
$output .= apply_filters('tutor_course_instructors_html', $instructor_output, $instructors); |
| 469 |
$output .= '<p class="quiz-search-suggest-text">'.__('Search to get the specific instructors', 'tutor').'</p>'; |
| 470 |
|
| 471 |
}else{ |
| 472 |
$output .= __('No instructor available or you have already added maximum instructors', 'tutor'); |
| 473 |
} |
| 474 |
|
| 475 |
|
| 476 |
if ( ! defined('TUTOR_MT_VERSION')){ |
| 477 |
$output .= '<p class="tutor-notice-warning" style="margin-top: 50px; font-size: 14px;">'. sprintf( __('To add unlimited multiple instructors in your course, get %sTutor LMS Pro%s', 'tutor'), '<a href="https://www.themeum.com/product/tutor-lms" target="_blank">', "</a>" ) .'</p>'; |
| 478 |
} |
| 479 |
|
| 480 |
wp_send_json_success(array('output' => $output)); |
| 481 |
} |
| 482 |
|
| 483 |
public function tutor_add_instructors_to_course(){ |
| 484 |
$course_id = (int) sanitize_text_field($_POST['course_id']); |
| 485 |
$instructor_ids = tutor_utils()->avalue_dot('tutor_instructor_ids', $_POST); |
| 486 |
|
| 487 |
if (is_array($instructor_ids) && count($instructor_ids)){ |
| 488 |
foreach ($instructor_ids as $instructor_id){ |
| 489 |
add_user_meta($instructor_id, '_tutor_instructor_course_id', $course_id); |
| 490 |
} |
| 491 |
} |
| 492 |
|
| 493 |
$saved_instructors = tutor_utils()->get_instructors_by_course($course_id); |
| 494 |
$output = ''; |
| 495 |
|
| 496 |
if ($saved_instructors){ |
| 497 |
foreach ($saved_instructors as $t){ |
| 498 |
|
| 499 |
$output .= '<div id="added-instructor-id-'.$t->ID.'" class="added-instructor-item added-instructor-item-'.$t->ID.'" data-instructor-id="'.$t->ID.'"> |
| 500 |
<span class="instructor-icon">'.get_avatar($t->ID, 30).'</span> |
| 501 |
<span class="instructor-name"> '.$t->display_name.' </span> |
| 502 |
<span class="instructor-control"> |
| 503 |
<a href="javascript:;" class="tutor-instructor-delete-btn"><i class="tutor-icon-garbage"></i></a> |
| 504 |
</span> |
| 505 |
</div>'; |
| 506 |
} |
| 507 |
} |
| 508 |
|
| 509 |
wp_send_json_success(array('output' => $output)); |
| 510 |
} |
| 511 |
|
| 512 |
public function detach_instructor_from_course(){ |
| 513 |
global $wpdb; |
| 514 |
|
| 515 |
$instructor_id = (int) sanitize_text_field($_POST['instructor_id']); |
| 516 |
$course_id = (int) sanitize_text_field($_POST['course_id']); |
| 517 |
|
| 518 |
$wpdb->delete($wpdb->usermeta, array('user_id' => $instructor_id, 'meta_key' => '_tutor_instructor_course_id', 'meta_value' => $course_id) ); |
| 519 |
wp_send_json_success(); |
| 520 |
} |
| 521 |
|
| 522 |
|
| 523 |
} |
