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<?php
/**
* User functions
*
* @since 2.1.0
*
* @package LearnDash\Users
*/
use LearnDash\Core\Utilities\Cast;
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* Deletes the user data.
*
* Fires on `delete_user` hook.
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @since 2.1.0
*
* @param int|void $user_id User ID.
*/
function learndash_delete_user_data( $user_id ) {
global $wpdb;
if ( ! current_user_can( 'edit_users' ) ) {
return;
}
$user_id = Cast::to_int( $user_id );
if ( empty( $user_id ) ) {
return;
}
$user = get_user_by( 'id', $user_id );
if ( ! $user ) {
return;
}
$ref_ids = $wpdb->get_col(
$wpdb->prepare(
'SELECT statistic_ref_id FROM ' . esc_sql( LDLMS_DB::get_table_name( 'quiz_statistic_ref' ) ) . ' WHERE user_id = %d ',
$user->ID
)
);
if ( ! empty( $ref_ids[0] ) ) {
$ref_ids = array_map( 'absint', $ref_ids );
$wpdb->query(
// phpcs:ignore WordPress.DB.PreparedSQLPlaceholders.UnfinishedPrepare, WordPress.DB.PreparedSQL.NotPrepared -- IN clause
$wpdb->prepare( 'DELETE FROM ' . esc_sql( LDLMS_DB::get_table_name( 'quiz_statistic' ) ) . ' WHERE statistic_ref_id IN (' . LDLMS_DB::escape_IN_clause_placeholders( $ref_ids ) . ')', LDLMS_DB::escape_IN_clause_values( $ref_ids ) )
);
}
$wpdb->delete(
LDLMS_DB::get_table_name( 'quiz_statistic_ref' ),
array(
'user_id' => $user->ID,
)
);
$wpdb->delete(
$wpdb->usermeta,
array(
'meta_key' => '_sfwd-quizzes',
'user_id' => $user->ID,
)
);
$wpdb->delete(
$wpdb->usermeta,
array(
'meta_key' => '_sfwd-course_progress',
'user_id' => $user->ID,
)
);
$wpdb->delete(
$wpdb->usermeta,
array(
'meta_key' => 'learndash-last-login',
'user_id' => $user->ID,
)
);
$wpdb->query(
$wpdb->prepare(
"DELETE FROM {$wpdb->usermeta} WHERE meta_key LIKE %s AND user_id = %d",
'completed_%',
$user->ID
)
);
$wpdb->query(
$wpdb->prepare(
"DELETE FROM {$wpdb->usermeta} WHERE meta_key LIKE %s AND user_id = %d",
'course_%_access_from',
$user->ID
)
);
$wpdb->query(
$wpdb->prepare(
"DELETE FROM {$wpdb->usermeta} WHERE meta_key LIKE %s AND user_id = %d",
'group_%_access_from',
$user->ID
)
);
$wpdb->query(
$wpdb->prepare(
"DELETE FROM {$wpdb->usermeta} WHERE meta_key LIKE %s AND user_id = %d",
'course_completed_%',
$user->ID
)
);
$wpdb->query(
$wpdb->prepare(
"DELETE FROM {$wpdb->usermeta} WHERE meta_key LIKE %s AND user_id = %d",
'learndash_course_expired_%',
$user->ID
)
);
$wpdb->query(
$wpdb->prepare(
"DELETE FROM {$wpdb->usermeta} WHERE meta_key LIKE %s AND user_id = %d",
'learndash_course_%',
$user->ID
)
);
$wpdb->query(
$wpdb->prepare(
"DELETE FROM {$wpdb->usermeta} WHERE meta_key LIKE %s AND user_id = %d",
'learndash_group_%',
$user->ID
)
);
learndash_report_clear_user_activity_by_types( $user->ID );
$wpdb->delete( LDLMS_DB::get_table_name( 'quiz_lock' ), array( 'user_id' => $user->ID ) );
$wpdb->delete( LDLMS_DB::get_table_name( 'quiz_toplist' ), array( 'user_id' => $user->ID ) );
// Move user uploaded Assignments to Trash.
$user_assignments_query_args = array(
'post_type' => 'sfwd-assignment',
'post_status' => 'publish',
'nopaging' => true,
'author' => $user->ID,
);
$user_assignments_query = new WP_Query( $user_assignments_query_args );
if ( $user_assignments_query->have_posts() ) {
foreach ( $user_assignments_query->posts as $assignment_post ) {
wp_trash_post( $assignment_post->ID );
}
}
wp_reset_postdata();
// Move user uploaded Essay to Trash.
$user_essays_query_args = array(
'post_type' => 'sfwd-essays',
'nopaging' => true,
'author' => $user->ID,
);
$user_essays_query = new WP_Query( $user_essays_query_args );
if ( $user_essays_query->have_posts() ) {
foreach ( $user_essays_query->posts as $essay_post ) {
wp_trash_post( $essay_post->ID );
}
}
wp_reset_postdata();
// flush user meta cache.
wp_cache_delete( $user->ID, 'user_meta' );
/**
* Fires after deleting user data.
*
* @param int $user_id User ID.
*/
do_action( 'learndash_delete_user_data', $user->ID );
}
add_action( 'delete_user', 'learndash_delete_user_data' );
/**
* Gets the list of all courses enrolled by the user.
*
* @since 2.2.1
*
* @param int $user_id Optional. User ID. Default 0.
* @param array $course_query_args Optional. An array of `WP_Query` arguments. Default empty array.
* @param boolean $bypass_transient Optional. Whether to bypass the transient cache or not. Default false.
*
* @return array An array of courses enrolled by user.
*/
function learndash_user_get_enrolled_courses( $user_id = 0, $course_query_args = array(), $bypass_transient = false ) {
$course_ids = array();
if ( empty( $user_id ) ) {
return $course_ids;
}
$bypass_transient = true;
$transient_key = 'learndash_user_courses_' . $user_id;
if ( ! $bypass_transient ) {
$course_ids_transient = LDLMS_Transients::get( $transient_key );
} else {
$course_ids_transient = false;
}
if ( false === $course_ids_transient ) {
if ( learndash_can_user_autoenroll_courses( $user_id ) ) {
$defaults = array(
'post_type' => 'sfwd-courses',
'fields' => 'ids',
'nopaging' => true,
);
$course_query_args = wp_parse_args( $course_query_args, $defaults );
$course_query = new WP_Query( $course_query_args );
if ( ( is_a( $course_query, 'WP_Query' ) ) && ( ! empty( $course_query->posts ) ) ) {
$course_ids = $course_query->posts;
}
} else {
$course_ids_open = learndash_get_posts_by_price_type( learndash_get_post_type_slug( 'course' ), 'open' );
if ( ! empty( $course_ids_open ) ) {
$course_ids = array_merge( $course_ids, $course_ids_open );
}
if ( true === learndash_use_legacy_course_access_list() ) {
$course_ids_access = learndash_get_user_course_access_list( $user_id );
if ( ! empty( $course_ids_access ) ) {
$course_ids = array_merge( $course_ids, $course_ids_access );
}
}
$course_ids_meta = learndash_get_user_courses_from_meta( $user_id );
if ( ! empty( $course_ids_meta ) ) {
$course_ids = array_merge( $course_ids, $course_ids_meta );
}
$course_ids_groups = learndash_get_user_groups_courses_ids( $user_id );
if ( ! empty( $course_ids_groups ) ) {
$course_ids = array_merge( $course_ids, $course_ids_groups );
}
if ( ! empty( $course_ids ) ) {
$course_ids = array_unique( $course_ids );
$defaults = array(
'post_type' => 'sfwd-courses',
'fields' => 'ids',
'nopaging' => true,
);
$course_query_args = wp_parse_args( $course_query_args, $defaults );
$course_query_args['post__in'] = $course_ids;
$course_query = new WP_Query( $course_query_args );
if ( property_exists( $course_query, 'posts' ) ) {
$course_ids = $course_query->posts;
}
}
}
LDLMS_Transients::set( $transient_key, $course_ids, MINUTE_IN_SECONDS );
} else {
$course_ids = $course_ids_transient;
}
return $course_ids;
}
/**
* Enrolls the user in new courses.
*
* @since 2.2.1
*
* @param int $user_id Optional. The ID of user to enroll courses. Default 0.
* @param array $user_courses_new Optional. An array of new course ids to enroll a user. Default empty array.
*/
function learndash_user_set_enrolled_courses( $user_id = 0, $user_courses_new = array() ) {
if ( ! empty( $user_id ) ) {
$user_courses_old = learndash_user_get_enrolled_courses( $user_id, true );
if ( ( empty( $user_courses_old ) ) && ( ! is_array( $user_courses_old ) ) ) {
$user_courses_old = array();
}
$user_courses_intersect = array_intersect( $user_courses_new, $user_courses_old );
$user_courses_add = array_diff( $user_courses_new, $user_courses_intersect );
if ( ! empty( $user_courses_add ) ) {
foreach ( $user_courses_add as $course_id ) {
ld_update_course_access( $user_id, $course_id );
}
}
$user_courses_remove = array_diff( $user_courses_old, $user_courses_intersect );
if ( ! empty( $user_courses_remove ) ) {
foreach ( $user_courses_remove as $course_id ) {
ld_update_course_access( $user_id, $course_id, true );
}
}
// Finally clear our cache for other services.
$transient_key = 'learndash_user_courses_' . $user_id;
LDLMS_Transients::delete( $transient_key );
}
}
/**
* Gets all courses for the user via the user meta 'course_XXX_access_from'.
*
* @since 2.2.1
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $user_id Optional. ID of the user to get meta. Default 0.
*
* @return array An array of user's course IDs.
*/
function learndash_get_user_courses_from_meta( $user_id = 0 ) {
global $wpdb;
$user_course_ids = array();
$user_id = intval( $user_id );
if ( ! empty( $user_id ) ) {
// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
$user_course_ids = $wpdb->get_col(
$wpdb->prepare(
"SELECT REPLACE( REPLACE(meta_key, 'course_', ''), '_access_from', '' ) FROM " . $wpdb->usermeta . ' as usermeta WHERE user_id=%d AND meta_key LIKE %s ',
$user_id,
'course_%_access_from'
)
);
if ( ! empty( $user_course_ids ) ) {
$user_course_ids = array_map( 'intval', $user_course_ids );
}
}
return $user_course_ids;
}
/**
* Checks whether to show user course complete.
*
* @global string $pagenow
*
* @param int $user_id Optional. User ID. Default 0.
*
* @return boolean Returns true to show user course complete otherwise false.
*/
function learndash_show_user_course_complete( $user_id = 0 ) {
$show_options = false;
if ( ! empty( $user_id ) ) {
global $pagenow;
if ( ( ( 'profile.php' == $pagenow ) || ( 'user-edit.php' == $pagenow ) ) && ( current_user_can( 'edit_users' ) ) ) {
$show_options = true;
} elseif ( 'admin.php' == $pagenow ) {
// phpcs:ignore WordPress.Security.NonceVerification.Recommended
if ( ( isset( $_GET['page'] ) ) && ( 'group_admin_page' == $_GET['page'] ) ) {
if ( ( learndash_is_admin_user() ) || ( learndash_is_group_leader_user() ) ) {
$show_options = true;
}
}
}
}
// See example snippet of this filter https://developers.learndash.com/hook/learndash_show_user_course_complete_options/.
/**
* Filters the status of whether the course is completed for a user or not.
*
* @since 2.3.0
*
* @param boolean $show_options Whether the course is completed or not.
* @param int $user_id ID of the logged in user to check.
*/
return apply_filters( 'learndash_show_user_course_complete_options', $show_options, $user_id );
}
/**
* Saves the date of course completion for a user.
*
* @since 2.3.0
*
* @param int $user_id Optional. User ID. Default 0.
*/
function learndash_save_user_course_complete( $user_id = 0 ) {
// Hate this cross-logic. But here it is.
// If we are clearing out the user's LD data then we abort this function. Now use going through the update.
if ( ( isset( $_POST['learndash_delete_user_data'] ) ) && ( ! empty( $_POST['learndash_delete_user_data'] ) ) ) {
return;
}
if ( empty( $user_id ) ) {
return;
}
if ( learndash_is_group_leader_user( get_current_user_id() ) ) {
if ( ! learndash_is_group_leader_of_user( get_current_user_id(), $user_id ) ) {
return;
}
} elseif ( ! current_user_can( 'edit_users' ) ) {
return;
}
if ( ( isset( $_POST['user_progress'] ) ) && ( isset( $_POST['user_progress'][ $user_id ] ) ) && ( ! empty( $_POST['user_progress'][ $user_id ] ) ) ) {
if ( ( isset( $_POST[ 'user_progress-' . $user_id . '-nonce' ] ) ) && ( ! empty( $_POST[ 'user_progress-' . $user_id . '-nonce' ] ) ) ) {
if ( wp_verify_nonce( $_POST[ 'user_progress-' . $user_id . '-nonce' ], 'user_progress-' . $user_id ) ) {
$user_progress = (array) json_decode( stripslashes( $_POST['user_progress'][ $user_id ] ) );
$user_progress = json_decode( wp_json_encode( $user_progress ), true );
learndash_process_user_course_progress_update( $user_id, $user_progress );
}
}
}
}
/**
* Process user course progress changes.
*
* @since 4.0.0
* @param int $user_id User ID to update.
* @param array $user_progress User progress array.
*
* @return array Array of processed course IDs.
*
* The user_progress structure should be as the following:
* The top-level nodes are 'course' and 'quiz'. Within each of these there is an array
* of course IDs. Within the course array there is an array of course steps.
*
* array(
* [course] => array (
* [123] => array(
* [completed] => 0
* [total] => 6
* [lessons] => array(
* [111] => 1
* [222] => 1
* )
* [topics] => array (
* [111] => array (
* [555] => 1
* [666] => 1
* )
* )
* )
* )
* [quiz] => array (
* [123] => array (
* [888] => 1
* [999] => 1
* )
* )
* )
*/
function learndash_process_user_course_progress_update( $user_id = 0, $user_progress = array() ) {
$processed_course_ids = array();
if ( empty( $user_id ) ) {
return $processed_course_ids;
}
if ( ( isset( $user_progress['course'] ) ) && ( ! empty( $user_progress['course'] ) ) ) {
$usermeta = get_user_meta( $user_id, '_sfwd-course_progress', true );
$course_progress = empty( $usermeta ) ? array() : $usermeta;
$course_changed = false; // Simple flag to let us know we changed the quiz data so we can save it back to user meta.
foreach ( $user_progress['course'] as $course_id => $course_data_new ) {
$processed_course_ids[ intval( $course_id ) ] = intval( $course_id );
if ( isset( $course_progress[ $course_id ] ) ) { // @phpstan-ignore-line -- legacy code.
$course_data_old = $course_progress[ $course_id ];
} else {
$course_data_old = array();
}
$course_data_new = learndash_course_item_to_activity_sync( $user_id, $course_id, $course_data_new, $course_data_old );
$course_progress[ $course_id ] = $course_data_new;
$course_changed = true;
}
if ( true === $course_changed ) {
update_user_meta( $user_id, '_sfwd-course_progress', $course_progress );
}
}
if ( ( isset( $user_progress['quiz'] ) ) && ( ! empty( $user_progress['quiz'] ) ) ) {
$usermeta = get_user_meta( $user_id, '_sfwd-quizzes', true );
$quiz_progress = empty( $usermeta ) ? array() : $usermeta;
$quiz_changed = false; // Simple flag to let us know we changed the quiz data so we can save it back to user meta.
foreach ( $user_progress['quiz'] as $course_id => $course_quiz_set ) {
foreach ( $course_quiz_set as $quiz_id => $quiz_new_status ) {
$quiz_meta = get_post_meta( $quiz_id, '_sfwd-quiz', true );
if ( ! empty( $quiz_meta ) ) {
$quiz_old_status = ! learndash_is_quiz_notcomplete( $user_id, array( $quiz_id => 1 ), false, $course_id );
// For Quiz if the admin marks a qiz complete we don't attempt to update an existing attempt for the user quiz.
// Instead we add a new entry. LD doesn't care as it will take the complete one for calculations where needed.
if ( (bool) true === (bool) $quiz_new_status ) {
if ( (bool) true !== (bool) $quiz_old_status ) {
if ( isset( $quiz_meta['sfwd-quiz_lesson'] ) ) {
$lesson_id = absint( $quiz_meta['sfwd-quiz_lesson'] );
} else {
$lesson_id = 0;
}
if ( isset( $quiz_meta['sfwd-quiz_topic'] ) ) {
$topic_id = absint( $quiz_meta['sfwd-quiz_topic'] );
} else {
$topic_id = 0;
}
// If the admin is marking the quiz complete AND the quiz is NOT already complete...
// Then we add the minimal quiz data to the user profile.
$quizdata = array(
'quiz' => $quiz_id,
'score' => 0,
'count' => 0,
'question_show_count' => 0,
'pass' => true,
'rank' => '-',
'time' => time(),
'pro_quizid' => absint( $quiz_meta['sfwd-quiz_quiz_pro'] ),
'course' => $course_id,
'lesson' => $lesson_id,
'topic' => $topic_id,
'points' => 0,
'total_points' => 0,
'percentage' => 0,
'timespent' => 0,
'has_graded' => false,
'statistic_ref_id' => 0,
'm_edit_by' => get_current_user_id(), // Manual Edit By ID.
'm_edit_time' => time(), // Manual Edit timestamp.
);
$quiz_progress[] = $quizdata;
if ( true === $quizdata['pass'] ) {
$quizdata_pass = true;
} else {
$quizdata_pass = false;
}
// Then we add the quiz entry to the activity database.
learndash_update_user_activity(
array(
'course_id' => $course_id,
'user_id' => $user_id,
'post_id' => $quiz_id,
'activity_type' => 'quiz',
'activity_action' => 'insert',
'activity_status' => $quizdata_pass,
'activity_started' => $quizdata['time'],
'activity_completed' => $quizdata['time'],
'activity_meta' => $quizdata,
)
);
$quiz_changed = true;
if ( ( isset( $quizdata['course'] ) ) && ( ! empty( $quizdata['course'] ) ) ) {
$quizdata['course'] = get_post( $quizdata['course'] );
}
if ( ( isset( $quizdata['lesson'] ) ) && ( ! empty( $quizdata['lesson'] ) ) ) {
$quizdata['lesson'] = get_post( $quizdata['lesson'] );
}
if ( ( isset( $quizdata['topic'] ) ) && ( ! empty( $quizdata['topic'] ) ) ) {
$quizdata['topic'] = get_post( $quizdata['topic'] );
}
/**
* Fires after the quiz is marked as complete.
*
* @param array $quizdata An array of quiz data.
* @param WP_User $user WP_User object.
*/
do_action( 'learndash_quiz_completed', $quizdata, get_user_by( 'ID', $user_id ) );
}
} elseif ( true !== $quiz_new_status ) {
// If we are un-setting a quiz ( changing from complete to incomplete). We need to do some complicated things...
if ( true === $quiz_old_status ) {
if ( ! empty( $quiz_progress ) ) {
foreach ( $quiz_progress as $quiz_idx => $quiz_item ) {
if ( $quiz_item['quiz'] == $quiz_id && true === (bool) $quiz_item['pass'] ) {
$quiz_progress[ $quiz_idx ]['pass'] = false;
// We need to update the activity database records for this quiz_id.
$activity_query_args = array(
'post_ids' => $quiz_id,
'user_ids' => $user_id,
'activity_type' => 'quiz',
);
$quiz_activity = learndash_reports_get_activity( $activity_query_args );
if ( ( isset( $quiz_activity['results'] ) ) && ( ! empty( $quiz_activity['results'] ) ) ) {
foreach ( $quiz_activity['results'] as $result ) {
if ( ( isset( $result->activity_meta['pass'] ) ) && ( true === $result->activity_meta['pass'] ) ) {
// If the activity meta 'pass' element is set to true we want to update it to false.
learndash_update_user_activity_meta( $result->activity_id, 'pass', false );
// Also we need to update the 'activity_status' for this record.
learndash_update_user_activity(
array(
'activity_id' => $result->activity_id,
'course_id' => $course_id,
'user_id' => $user_id,
'post_id' => $quiz_id,
'activity_type' => 'quiz',
'activity_action' => 'update',
'activity_status' => false,
)
);
}
}
}
$quiz_changed = true;
}
/**
* Remove the quiz lock.
*
* @since 2.3.1
*/
if ( ( isset( $quiz_item['pro_quizid'] ) ) && ( ! empty( $quiz_item['pro_quizid'] ) ) ) {
learndash_remove_user_quiz_locks( $user_id, $quiz_item['quiz'] );
}
}
}
}
}
$processed_course_ids[ intval( $course_id ) ] = intval( $course_id );
}
}
}
if ( true === $quiz_changed ) {
update_user_meta( $user_id, '_sfwd-quizzes', $quiz_progress );
}
}
if ( ! empty( $processed_course_ids ) ) {
foreach ( array_unique( $processed_course_ids ) as $course_id ) {
learndash_process_mark_complete( $user_id, $course_id );
learndash_update_group_course_user_progress( $course_id, $user_id, true );
}
}
return $processed_course_ids;
}
/**
* Syncs the course date with the user activity.
*
* We need to compare the new course item progress array to the existing one. Also, update the new activity DB table
*
* @since 2.3.0
*
* @param int $user_id Optional. The user ID related to this course entry. Default 0.
* @param int $course_id Optional. The course ID related to this user course entry. Default 0.
* @param array $course_data_new Optional. The new course data item. Default empty array.
* @param array $course_data_old Optional. The old course data item. Default empty array.
*
* @return void|array
*/
function learndash_course_item_to_activity_sync( $user_id = 0, $course_id = 0, $course_data_new = array(), $course_data_old = array() ) {
if ( ( empty( $user_id ) ) || ( empty( $course_id ) ) || ( empty( $course_data_new ) ) ) {
return;
}
// If we don't have the old course data we can get it.
if ( empty( $course_data_old ) ) {
$user_course_progress = get_user_meta( $user_id, '_sfwd-course_progress', true );
if ( isset( $user_course_progress[ $course_id ] ) ) {
$course_data_old = $user_course_progress[ $course_id ];
} else {
$course_data_old = array();
}
}
// First we loop over the new Course data lessons. We add any items not in the old array to the activity table.
if ( ( isset( $course_data_new['lessons'] ) ) && ( ! empty( $course_data_new['lessons'] ) ) ) {
foreach ( $course_data_new['lessons'] as $lesson_id => $lesson_complete ) {
$lesson_complete = (bool) $lesson_complete;
if ( ( ! isset( $course_data_old['lessons'][ $lesson_id ] ) ) || ( $lesson_complete !== (bool) $course_data_old['lessons'][ $lesson_id ] ) ) {
$lesson_args = array(
'course_id' => $course_id,
'user_id' => $user_id,
'post_id' => $lesson_id,
'activity_type' => 'lesson',
);
$lesson_activity = learndash_get_user_activity( $lesson_args );
if ( ! $lesson_activity ) {
if ( true === $lesson_complete ) {
$lesson_args['activity_started'] = time();
$lesson_args['activity_completed'] = time();
} else {
$lesson_args['activity_started'] = 0;
$lesson_args['activity_completed'] = 0;
}
} else {
if ( true === $lesson_complete ) {
if ( empty( $lesson_activity->activity_started ) ) {
$lesson_args['activity_started'] = time();
}
if ( empty( $lesson_activity->activity_completed ) ) {
$lesson_args['activity_completed'] = time();
}
} else {
$lesson_args['activity_started'] = 0;
$lesson_args['activity_completed'] = 0;
}
}
if ( true === $lesson_complete ) {
$lesson_args['activity_status'] = true;
} else {
$lesson_args['activity_status'] = false;
}
learndash_update_user_activity( $lesson_args );
}
}
}
// Next we loop over the lesson topics. We add any new items not in the old array to the activity table.
if ( ( isset( $course_data_new['topics'] ) ) && ( ! empty( $course_data_new['topics'] ) ) ) {
foreach ( $course_data_new['topics'] as $lesson_id => $lesson_topics ) {
if ( ! empty( $lesson_topics ) ) {
foreach ( $lesson_topics as $topic_id => $topic_complete ) {
$topic_complete = (bool) $topic_complete;
if ( ( ! isset( $course_data_old['topics'][ $lesson_id ][ $topic_id ] ) ) || ( $topic_complete !== (bool) $course_data_old['topics'][ $lesson_id ][ $topic_id ] ) ) {
$topic_args = array(
'course_id' => $course_id,
'user_id' => $user_id,
'post_id' => $topic_id,
'activity_type' => 'topic',
);
$topic_activity = learndash_get_user_activity( $topic_args );
if ( ! $topic_activity ) {
if ( true === $topic_complete ) {
$topic_args['activity_started'] = time();
$topic_args['activity_completed'] = time();
} else {
$topic_args['activity_started'] = 0;
$topic_args['activity_completed'] = 0;
}
} else {
if ( true === $topic_complete ) {
if ( empty( $topic_activity->activity_started ) ) {
$topic_args['activity_started'] = time();
}
if ( empty( $topic_activity->activity_completed ) ) {
$topic_args['activity_completed'] = time();
}
} else {
$topic_args['activity_started'] = 0;
$topic_args['activity_completed'] = 0;
}
}
if ( true === $topic_complete ) {
$topic_args['activity_status'] = true;
} else {
$topic_args['activity_status'] = false;
}
learndash_update_user_activity( $topic_args );
}
}
}
}
}
// Then we loop over the old course lessons. Here if the lesson is NOT in the new course lessons we need to change the 'activity_status' to false.
if ( ( isset( $course_data_old['lessons'] ) ) && ( ! empty( $course_data_old['lessons'] ) ) ) {
foreach ( $course_data_old['lessons'] as $lesson_id => $lesson_complete ) {
if ( ! isset( $course_data_new['lessons'][ $lesson_id ] ) ) {
learndash_update_user_activity(
array(
'course_id' => $course_id,
'user_id' => $user_id,
'post_id' => $lesson_id,
'activity_type' => 'lesson',
'activity_status' => false,
'activity_started' => 0,
'activity_completed' => 0,
'activity_updated' => 0,
)
);
}
}
}
// Then we loop over the old course topics. Here if the lesson is NOT in the new course topics we need to change the 'activity_status' to false.
if ( ( isset( $course_data_old['topics'] ) ) && ( ! empty( $course_data_old['topics'] ) ) ) {
foreach ( $course_data_old['topics'] as $lesson_id => $lesson_topics ) {
if ( ! empty( $lesson_topics ) ) {
foreach ( $lesson_topics as $topic_id => $topic_complete ) {
if ( ! isset( $course_data_new['topics'][ $lesson_id ][ $topic_id ] ) ) {
learndash_update_user_activity(
array(
'course_id' => $course_id,
'user_id' => $user_id,
'post_id' => $topic_id,
'activity_type' => 'topic',
'activity_status' => false,
'activity_started' => 0,
'activity_completed' => 0,
'activity_updated' => 0,
)
);
}
}
}
}
}
// Finally we recalculate the course completed steps from the new course data.
$completed_steps = (int) learndash_course_get_completed_steps( $user_id, $course_id, $course_data_new );
if ( ( ! isset( $course_data_new['completed'] ) ) || ( $completed_steps != $course_data_new['completed'] ) ) {
$course_args = array(
'course_id' => $course_id,
'user_id' => $user_id,
'post_id' => $course_id,
'activity_type' => 'course',
);
if ( empty( $completed_steps ) ) {
$course_args['activity_status'] = false;
$course_args['activity_started'] = 0;
$course_args['activity_completed'] = 0;
$course_args['activity_updated'] = 0;
} else {
$course_activity = (array) learndash_get_user_activity( $course_args );
if ( ! isset( $course_activity['activity_id'] ) ) {
$course_args['activity_status'] = false;
$course_args['activity_started'] = learndash_activity_course_get_earliest_started( $user_id, $course_id, time() );
$course_args['activity_completed'] = 0;
} else {
$course_args = $course_activity;
}
if ( empty( $course_args['activity_started'] ) ) {
$course_args['activity_started'] = learndash_activity_course_get_earliest_started( $user_id, $course_id, time() );
}
}
$course_args['activity_meta'] = array(
'steps_completed' => $completed_steps,
);
learndash_update_user_activity( $course_args );
}
// Then return the new course data to the caller.
return $course_data_new;
}
/**
* Mark all course steps as complete for a user.
*
* @since 4.0.0
*
* @param int $user_id User ID.
* @param int $course_id Course ID.
*
* @return bool true if course steps marked as complete, false if not.
*/
function learndash_user_course_complete_all_steps( $user_id = 0, $course_id = 0 ) {
$user_id = absint( $user_id );
$course_id = absint( $course_id );
if ( ( empty( $user_id ) ) || ( empty( $course_id ) ) ) {
return false;
}
// User must have access to the course.
$course_access = sfwd_lms_has_access( $course_id, $user_id );
if ( true !== $course_access ) {
return;
}
// If the course is already complete.
if ( learndash_course_completed( $user_id, $course_id ) ) {
return;
}
$course_progress_object = LDLMS_Factory_User::course_progress( $user_id );
if ( ! $course_progress_object ) {
return false;
}
$course_progress_steps_legacy = $course_progress_object->get_progress( $course_id, 'legacy' );
if ( isset( $course_progress_steps_legacy['lessons'] ) ) {
foreach ( $course_progress_steps_legacy['lessons'] as $lesson_id => &$lesson_completed ) {
$lesson_completed = 1;
}
}
if ( isset( $course_progress_steps_legacy['topics'] ) ) {
foreach ( $course_progress_steps_legacy['topics'] as $lesson_id => &$lesson_topics ) {
foreach ( $lesson_topics as $topic_id => &$topic_complete ) {
$topic_complete = 1;
}
}
}
$quiz_progress = array();
$course_progress_steps_co = $course_progress_object->get_progress( $course_id, 'co' );
foreach ( $course_progress_steps_co as $key => $value ) {
list( $step_type, $step_id ) = explode( ':', $key );
if ( learndash_get_post_type_slug( 'quiz' ) === $step_type ) {
$quiz_progress[ absint( $step_id ) ] = 1;
}
}
$user_progress = array(
'course' => array(
$course_id => $course_progress_steps_legacy,
),
'quiz' => array(
$course_id => $quiz_progress,
),
);
$changed_courses_count = learndash_process_user_course_progress_update( $user_id, $user_progress );
if ( empty( $changed_courses_count ) ) {
return false;
}
return true;
}
/**
* Gets the list of course IDs accessible by the user.
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @since 2.3.0
*
* @param int $user_id Optional. The ID of the user to get course list. Default 0.
*
* @return array An array of course IDs.
*/
function learndash_get_user_course_access_list( $user_id = 0 ) {
global $wpdb;
$user_course_ids = array();
$user_id = intval( $user_id );
if ( ! empty( $user_id ) ) {
if ( true === learndash_use_legacy_course_access_list() ) {
$data_settings_courses = learndash_data_upgrades_setting( 'course-access-lists' );
if ( ( isset( $data_settings_courses['version'] ) ) && ( version_compare( $data_settings_courses['version'], LEARNDASH_SETTINGS_TRIGGER_UPGRADE_VERSION, '>=' ) ) ) {
$is_like = " postmeta.meta_value = '" . $user_id . "'
OR postmeta.meta_value REGEXP '^" . $user_id . ",'
OR postmeta.meta_value REGEXP '," . $user_id . ",'
OR postmeta.meta_value REGEXP '," . $user_id . "$'";
$sql_str = 'SELECT post_id FROM ' . $wpdb->prefix . 'postmeta as postmeta INNER JOIN ' . $wpdb->prefix . "posts as posts ON posts.ID = postmeta.post_id WHERE posts.post_status='publish' AND posts.post_type='sfwd-courses' AND postmeta.meta_key='course_access_list' AND (" . $is_like . ')';
} else {
// OR the access list is not empty.
$not_like = " postmeta.meta_value NOT REGEXP '\"sfwd-courses_course_access_list\";s:0:\"\";' ";
// OR the user ID is found in the access list. Note this pattern is four options
// 1. The user ID is the only entry.
// 1a. The single entry could be an int
// 1b. Ot the single entry could be an string
// 2. The user ID is at the front of the list as in "sfwd-courses_course_access_list";*:"X,*";
// 3. The user ID is in middle "sfwd-courses_course_access_list";*:"*,X,*";
// 4. The user ID is at the end "sfwd-courses_course_access_list";*:"*,X";.
$is_like = "
postmeta.meta_value REGEXP 's:31:\"sfwd-courses_course_access_list\";i:" . $user_id . ";s:34:\"sfwd-courses_course_lesson_orderby\"'
OR postmeta.meta_value REGEXP 's:31:\"sfwd-courses_course_access_list\";i:" . $user_id . ";s:40:\"sfwd-courses_course_prerequisite_compare\"'
OR postmeta.meta_value REGEXP 's:31:\"sfwd-courses_course_access_list\";i:" . $user_id . ";s:35:\"sfwd-courses_course_lesson_per_page\"'
OR postmeta.meta_value REGEXP 's:31:\"sfwd-courses_course_access_list\";s:(.*):\"" . $user_id . "\";s:34:\"sfwd-courses_course_lesson_orderby\"'
OR postmeta.meta_value REGEXP 's:31:\"sfwd-courses_course_access_list\";s:(.*):\"" . $user_id . "\";s:40:\"sfwd-courses_course_prerequisite_compare\"'
OR postmeta.meta_value REGEXP 's:31:\"sfwd-courses_course_access_list\";s:(.*):\"" . $user_id . "\";s:35:\"sfwd-courses_course_lesson_per_page\"'
OR postmeta.meta_value REGEXP 's:31:\"sfwd-courses_course_access_list\";s:(.*):\"" . $user_id . ",(.*)\";s:34:\"sfwd-courses_course_lesson_orderby\"'
OR postmeta.meta_value REGEXP 's:31:\"sfwd-courses_course_access_list\";s:(.*):\"" . $user_id . ",(.*)\";s:40:\"sfwd-courses_course_prerequisite_compare\"'
OR postmeta.meta_value REGEXP 's:31:\"sfwd-courses_course_access_list\";s:(.*):\"" . $user_id . ",(.*)\";s:35:\"sfwd-courses_course_lesson_per_page\"'
OR postmeta.meta_value REGEXP 's:31:\"sfwd-courses_course_access_list\";s:(.*):\"(.*)," . $user_id . ",(.*)\";s:34:\"sfwd-courses_course_lesson_orderby\"'
OR postmeta.meta_value REGEXP 's:31:\"sfwd-courses_course_access_list\";s:(.*):\"(.*)," . $user_id . ",(.*)\";s:40:\"sfwd-courses_course_prerequisite_compare\"'
OR postmeta.meta_value REGEXP 's:31:\"sfwd-courses_course_access_list\";s:(.*):\"(.*)," . $user_id . ",(.*)\";s:35:\"sfwd-courses_course_lesson_per_page\"'
OR postmeta.meta_value REGEXP 's:31:\"sfwd-courses_course_access_list\";s:(.*):\"(.*)," . $user_id . "\";s:34:\"sfwd-courses_course_lesson_orderby\"'
OR postmeta.meta_value REGEXP 's:31:\"sfwd-courses_course_access_list\";s:(.*):\"(.*)," . $user_id . "\";s:40:\"sfwd-courses_course_prerequisite_compare\"'
OR postmeta.meta_value REGEXP 's:31:\"sfwd-courses_course_access_list\";s:(.*):\"(.*)," . $user_id . "\";s:35:\"sfwd-courses_course_lesson_per_page\"'
";
$sql_str = 'SELECT post_id FROM ' . $wpdb->postmeta . ' as postmeta INNER JOIN ' . $wpdb->posts . " as posts ON posts.ID = postmeta.post_id WHERE posts.post_status='publish' AND posts.post_type='sfwd-courses' AND postmeta.meta_key='_sfwd-courses' AND ( " . $not_like . ' AND (' . $is_like . '))';
}
// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
$user_course_ids = $wpdb->get_col( $sql_str ); // phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
} else {
$user_course_ids = learndash_user_get_enrolled_courses( $user_id );
}
}
return $user_course_ids;
}
/**
* Gets all courses accessible by the user's groups.
*
* @since 2.3.0
*
* @param int $user_id Optional. User ID. Default 0.
*
* @return array An array of course IDs.
*/
function learndash_get_user_groups_courses_ids( $user_id = 0 ) {
$user_group_course_ids = array();
if ( empty( $user_id ) ) {
return $user_group_course_ids;
}
// Next we grab all the groups the user is a member of.
$users_group_ids = learndash_get_users_group_ids( $user_id );
if ( ! empty( $users_group_ids ) ) {
foreach ( $users_group_ids as $group_id ) {
$group_course_ids = learndash_group_enrolled_courses( $group_id );
if ( ! empty( $group_course_ids ) ) {
$user_group_course_ids = array_merge( $user_group_course_ids, $group_course_ids );
}
}
}
/**
* Filters the list of user group courses.
*
* @param array $user_group_course_ids An array of found user group courses.
* @param int $user_id User ID.
*/
return apply_filters( 'learndash_get_user_groups_courses_ids', $user_group_course_ids, $user_id );
}
/**
* Records the last login time for the user.
*
* Fires on `wp_login` hook.
*
* @since 2.3.0
*
* @param string $user_login Optional. Username. Default empty.
* @param WP_User|string $user Optional. The `WP_User` object of the logged-in user. Default empty.
*/
function learndash_wp_login( $user_login = '', $user = '' ) {
if ( ! empty( $user_login ) ) {
if ( ! ( $user instanceof WP_User ) ) {
$user = get_user_by( 'login', $user_login );
}
if ( $user instanceof WP_User ) {
update_user_meta( $user->ID, 'learndash-last-login', time() );
}
}
}
add_action( 'wp_login', 'learndash_wp_login', 99, 1 );
/**
* Removes the lock from a quiz for a user.
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @since 2.3.1
*
* @param int $user_id Optional. The User ID. Default 0.
* @param int $quiz_id Optional. The Quiz post ID. Default 0.
*/
function learndash_remove_user_quiz_locks( $user_id = 0, $quiz_id = 0 ) {
global $wpdb;
if ( ( ! empty( $user_id ) ) && ( ! empty( $quiz_id ) ) ) {
$pro_quiz_id = get_post_meta( $quiz_id, 'quiz_pro_id', true );
if ( ! empty( $pro_quiz_id ) ) {
// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
$wpdb->query(
$wpdb->prepare(
'DELETE FROM ' . esc_sql( LDLMS_DB::get_table_name( 'quiz_lock' ) ) . ' WHERE quiz_id = %d AND user_id = %s',
$pro_quiz_id,
$user_id
)
);
}
}
}
/**
* Gets the course points for a user.
*
* The course points calculation is based on all completed courses by the user. From
* these completed courses we get any with assigned course points into a total.
* Then we add the optional 'course_points' user meta value if present. This is a value the
* admin can set to help increase the student's point total.
*
* The calculated course points plus user meta course points are added together and returned.
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @since 2.4.0
*
* @param int $user_id Optional. User ID. Default 0.
*
* @return mixed User course points.
*/
function learndash_get_user_course_points( $user_id = 0 ) {
global $wpdb;
if ( empty( $user_id ) ) {
if ( ! is_user_logged_in() ) {
return false;
}
$user_id = get_current_user_id();
}
$user_id = intval( $user_id );
if ( ! empty( $user_id ) ) {
// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
$course_points_results = $wpdb->get_results(
$wpdb->prepare(
'SELECT DISTINCT postmeta.post_id as post_id, postmeta.meta_value as points
FROM ' . $wpdb->postmeta . " as postmeta
WHERE postmeta.post_id IN
(
SELECT DISTINCT REPLACE(user_meta.meta_key, 'course_completed_', '') as course_id
FROM " . $wpdb->usermeta . " as user_meta
WHERE user_meta.meta_key LIKE %s
AND user_meta.user_id = %d and user_meta.meta_value != ''
)
AND postmeta.meta_key=%s
AND postmeta.meta_value != ''",
'course_completed_%',
$user_id,
'course_points'
)
);
$course_points_sum = 0;
if ( ! empty( $course_points_results ) ) {
foreach ( $course_points_results as $course_points ) {
$course_points_sum += learndash_format_course_points( $course_points->points );
}
}
$user_course_points = get_user_meta( $user_id, 'course_points', true );
$user_course_points = learndash_format_course_points( $user_course_points );
return learndash_format_course_points( (string) ( $course_points_sum + $user_course_points ) );
}
}
/**
* Gets the quiz statistic ID for a quiz attempt.
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $user_id Optional. Quiz ID. Default 0.
* @param array $quiz_attempt Optional. An array of quiz attempt data. Default empty array.
*
* @return int The quiz statistic reference ID.
*/
function learndash_get_quiz_statistics_ref_for_quiz_attempt( $user_id = 0, $quiz_attempt = array() ) {
global $wpdb;
if ( empty( $user_id ) ) {
return 0;
}
if ( ( ! isset( $quiz_attempt['pro_quizid'] ) ) || ( empty( $quiz_attempt['pro_quizid'] ) ) ) {
return 0;
}
if ( ( ! isset( $quiz_attempt['time'] ) ) || ( empty( $quiz_attempt['time'] ) ) ) {
return 0;
}
// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
$ref_id = $wpdb->get_var(
$wpdb->prepare(
'SELECT statistic_ref_id FROM ' . esc_sql( LDLMS_DB::get_table_name( 'quiz_statistic_ref' ) ) . ' as stat
INNER JOIN ' . esc_sql( LDLMS_DB::get_table_name( 'quiz_master' ) ) . ' as master ON stat.quiz_id=master.id
WHERE user_id = %d AND quiz_id = %d AND create_time = %d AND master.statistics_on=1 LIMIT 1',
$user_id,
$quiz_attempt['pro_quizid'],
$quiz_attempt['time']
)
);
return $ref_id;
}
/**
* Gets the available fields for `usermeta` shortcode.
*
* @since 2.4.0
*
* @param array $attr Optional. An array of attributes to provide context for filter. Default empty array.
*
* @return array An array of available usermeta fields.
*/
function learndash_get_usermeta_shortcode_available_fields( $attr = array() ) {
/**
* Filters the `usermeta` shortcode available fields.
*
* Added logic to allow protect certain user meta fields. The default
* fields is based on some of the fields returned via get_userdata().
*
* @since 2.4.0
*
* @param array $available_fields An array of available shortcode fields.
* @param array $attributes An array of attributes to provide context for the filter.
*/
return apply_filters(
'learndash_usermeta_shortcode_available_fields',
array(
'user_login' => esc_html__( 'User Login', 'learndash' ),
'first_name' => esc_html__( 'User First Name', 'learndash' ),
'last_name' => esc_html__( 'User Last Name', 'learndash' ),
'first_last_name' => esc_html__( 'User First and Last Name', 'learndash' ),
'display_name' => esc_html__( 'User Display Name', 'learndash' ),
'user_nicename' => esc_html__( 'User Nicename', 'learndash' ),
'nickname' => esc_html__( 'User Nickname', 'learndash' ),
'user_email' => esc_html__( 'User Email', 'learndash' ),
'user_url' => esc_html__( 'User URL', 'learndash' ),
'description' => esc_html__( 'User Description', 'learndash' ),
),
$attr
);
}
/**
* Utility function to return the admin user Courses capabilities.
*
* @since 3.2.3.5
*
* @return array of role capabilities.
*/
function learndash_get_admin_courses_capabilities(): array {
return array(
'read_post' => 'read_course',
'publish_posts' => 'publish_courses',
'edit_posts' => 'edit_courses',
'edit_others_posts' => 'edit_others_courses',
'delete_posts' => 'delete_courses',
'delete_others_posts' => 'delete_others_courses',
'read_private_posts' => 'read_private_courses',
'edit_private_posts' => 'edit_private_courses',
'delete_private_posts' => 'delete_private_courses',
'delete_post' => 'delete_course',
'edit_published_posts' => 'edit_published_courses',
'delete_published_posts' => 'delete_published_courses',
);
}
/**
* Initialize the admin user Courses capabilities.
*
* @since 3.2.3.5
*
* @return void
*/
function learndash_init_admin_courses_capabilities(): void {
$admin_role = get_role( 'administrator' );
if ( is_null( $admin_role ) ) {
return;
}
// Not sure why this is here.
if ( ! $admin_role->has_cap( 'enroll_users' ) ) {
$admin_role->add_cap( 'enroll_users' );
}
foreach ( learndash_get_admin_courses_capabilities() as $capability ) {
if ( ! $admin_role->has_cap( $capability ) ) {
$admin_role->add_cap( $capability );
}
}
}
/**
* Utility function to return the admin user Groups capabilities.
*
* @since 3.2.3.5
*
* @return array of role capabilities.
*/
function learndash_get_admin_groups_capabilities(): array {
return array(
'read_post' => 'read_group',
'publish_posts' => 'publish_groups',
'edit_posts' => 'edit_groups',
'edit_post' => 'edit_group',
'edit_others_posts' => 'edit_others_groups',
'delete_posts' => 'delete_groups',
'delete_others_posts' => 'delete_others_groups',
'read_private_posts' => 'read_private_groups',
'delete_post' => 'delete_group',
'edit_published_posts' => 'edit_published_groups',
'delete_published_posts' => 'delete_published_groups',
);
}
/**
* Initialize the admin user Groups capabilities.
*
* @since 3.2.3.5
*
* @return void
*/
function learndash_init_admin_groups_capabilities(): void {
$admin_role = get_role( 'administrator' );
if ( is_null( $admin_role ) ) {
return;
}
foreach ( learndash_get_admin_groups_capabilities() as $capability ) {
if ( ! $admin_role->has_cap( $capability ) ) {
$admin_role->add_cap( $capability );
}
}
}
/**
* Utility function to return the admin user Coupons capabilities.
*
* @since 4.1.0
*
* @return array of role capabilities.
*/
function learndash_get_admin_coupons_capabilities(): array {
return array(
'read_post' => 'read_coupon',
'publish_posts' => 'publish_coupons',
'edit_posts' => 'edit_coupons',
'edit_post' => 'edit_coupon',
'edit_others_posts' => 'edit_others_coupons',
'delete_posts' => 'delete_coupons',
'delete_others_posts' => 'delete_others_coupons',
'read_private_posts' => 'read_private_coupons',
'delete_post' => 'delete_coupon',
'edit_published_posts' => 'edit_published_coupons',
'delete_published_posts' => 'delete_published_coupons',
);
}
/**
* Initialize the admin user Coupons capabilities.
*
* @since 4.1.0
*
* @return void
*/
function learndash_init_admin_coupons_capabilities(): void {
$admin_role = get_role( 'administrator' );
if ( is_null( $admin_role ) ) {
return;
}
foreach ( learndash_get_admin_coupons_capabilities() as $capability ) {
if ( ! $admin_role->has_cap( $capability ) ) {
$admin_role->add_cap( $capability );
}
}
}
add_action( 'admin_init', 'learndash_init_admin_coupons_capabilities' );
/**
* Gets all expired courses for the user via the user meta 'learndash_course_expired_XXX'.
*
* @since 3.4.2
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $user_id Optional. ID of the user to get meta. Default 0.
*
* @return array An array of user's expired course IDs.
*/
function learndash_get_expired_user_courses_from_meta( $user_id = 0 ) {
global $wpdb;
$expired_user_course_ids = array();
$user_id = intval( $user_id );
if ( ! empty( $user_id ) ) {
// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
$expired_user_course_ids = $wpdb->get_col(
$wpdb->prepare(
"SELECT REPLACE(meta_key, 'learndash_course_expired_', '') FROM " . $wpdb->usermeta . ' as usermeta WHERE user_id=%d AND meta_key LIKE %s ',
$user_id,
'learndash_course_expired_%'
)
);
if ( ! empty( $expired_user_course_ids ) ) {
$expired_user_course_ids = array_map( 'intval', $expired_user_course_ids );
}
}
return $expired_user_course_ids;
}
/**
* Utility function to check if users can register for the site.
*
* @since 3.6.0
*/
function learndash_users_can_register() {
if ( is_multisite() ) {
$users_can_register = (bool) users_can_register_signup_filter();
} else {
$users_can_register = (bool) get_option( 'users_can_register' );
}
/**
* Filter for users can register.
*
* @since 3.6.0
* @param bool $users_can_register True if users can register.
*/
return (bool) apply_filters( 'learndash_users_can_register', $users_can_register );
}