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<?php
/**
* Course Builder Helpers.
*
* Used to provide proper data to Course Builder app.
*
* @since 3.0.0
* @package LearnDash\Builder
*/
namespace LearnDash\Admin\CourseBuilderHelpers;
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* Gets the course data for the course builder.
*
* @since 3.4.0
*
* @param array $data The data passed down to the front-end.
*
* @return array The data passed down to the front-end.
*/
function learndash_get_course_data( $data ) {
$data['post_statuses'] = learndash_get_step_post_statuses();
if ( ( defined( 'LEARNDASH_COURSE_FUNCTIONS_LEGACY' ) ) && ( true === LEARNDASH_COURSE_FUNCTIONS_LEGACY ) ) { // @phpstan-ignore-line
return \learndash_get_course_data_legacy( $data );
}
global $pagenow, $typenow;
$output_lessons = array();
$output_quizzes = array();
$sections = array();
if ( ( 'post.php' === $pagenow ) && ( learndash_get_post_type_slug( 'course' ) === $typenow ) ) {
$course_id = get_the_ID();
if ( ! empty( $course_id ) ) {
// Get a list of lessons to loop.
$lessons = learndash_course_get_lessons(
$course_id,
array(
'return_type' => 'WP_Post',
'per_page' => 0,
)
);
$output_lessons = array();
$lesson_topics = array();
if ( ( is_array( $lessons ) ) && ( ! empty( $lessons ) ) ) {
// Loop course's lessons.
foreach ( $lessons as $lesson_post ) {
if ( ! is_a( $lesson_post, 'WP_Post' ) ) {
continue;
}
// Get lesson's topics.
$topics = learndash_course_get_topics(
$course_id,
$lesson_post->ID,
array(
'return_type' => 'WP_Post',
'per_page' => 0,
)
);
$output_topics = array();
if ( ( is_array( $topics ) ) && ( ! empty( $topics ) ) ) {
// Loop Topics.
foreach ( $topics as $topic_post ) {
if ( ! is_a( $topic_post, 'WP_Post' ) ) {
continue;
}
// Get Topic's Quizzes.
$topic_quizzes = learndash_course_get_quizzes(
$course_id,
$topic_post->ID,
array(
'return_type' => 'WP_Post',
'per_page' => 0,
)
);
$output_topic_quizzes = array();
if ( ( is_array( $topic_quizzes ) ) && ( ! empty( $topic_quizzes ) ) ) {
// Loop Topic's Quizzes.
foreach ( $topic_quizzes as $quiz_post ) {
if ( ! is_a( $quiz_post, 'WP_Post' ) ) {
continue;
}
$output_topic_quizzes[] = array(
'ID' => $quiz_post->ID,
'expanded' => true,
'post_title' => $quiz_post->post_title,
'post_status' => learndash_get_step_post_status_slug( $quiz_post ),
'type' => $quiz_post->post_type,
'url' => learndash_get_step_permalink( $quiz_post->ID, $course_id ),
'edit_link' => get_edit_post_link( $quiz_post->ID, '' ),
'tree' => array(),
);
}
}
$output_topics[] = array(
'ID' => $topic_post->ID,
'expanded' => true,
'post_title' => $topic_post->post_title,
'post_status' => learndash_get_step_post_status_slug( $topic_post ),
'type' => $topic_post->post_type,
'url' => learndash_get_step_permalink( $topic_post->ID, $course_id ),
'edit_link' => get_edit_post_link( $topic_post->ID, '' ),
'tree' => $output_topic_quizzes,
);
}
}
// Get lesson's quizzes.
$lesson_quizzes = learndash_course_get_quizzes(
$course_id,
$lesson_post->ID,
array(
'return_type' => 'WP_Post',
'per_page' => 0,
)
);
$output_quizzes = array();
if ( ( is_array( $lesson_quizzes ) ) && ( ! empty( $lesson_quizzes ) ) ) {
// Loop lesson's quizzes.
foreach ( $lesson_quizzes as $quiz_post ) {
if ( ! is_a( $quiz_post, 'WP_Post' ) ) {
continue;
}
$output_quizzes[] = array(
'ID' => $quiz_post->ID,
'expanded' => true,
'post_title' => $quiz_post->post_title,
'post_status' => learndash_get_step_post_status_slug( $quiz_post ),
'type' => $quiz_post->post_type,
'url' => learndash_get_step_permalink( $quiz_post->ID, $course_id ),
'edit_link' => get_edit_post_link( $quiz_post->ID, '' ),
'tree' => array(),
);
}
}
// Output lesson with child tree.
$output_lessons[] = array(
'ID' => $lesson_post->ID,
'expanded' => false,
'post_title' => $lesson_post->post_title,
'post_status' => learndash_get_step_post_status_slug( $lesson_post ),
'type' => $lesson_post->post_type,
'url' => learndash_get_step_permalink( $lesson_post->ID, $course_id ),
'edit_link' => get_edit_post_link( $lesson_post->ID, '' ),
'tree' => array_merge( $output_topics, $output_quizzes ),
'sample_lesson' => learndash_is_sample( $lesson_post->ID ),
);
}
}
// Get a list of course (global) quizzes.
$global_quizzes = learndash_course_get_quizzes(
$course_id,
$course_id,
array(
'return_type' => 'WP_Post',
'per_page' => 0,
)
);
$output_quizzes = array();
if ( ( is_array( $global_quizzes ) ) && ( ! empty( $global_quizzes ) ) ) {
foreach ( $global_quizzes as $quiz_post ) {
if ( ! is_a( $quiz_post, 'WP_Post' ) ) {
continue;
}
$quiz_post_status = $quiz_post->post_status;
if ( ( 'publish' === $quiz_post->post_status ) && ( ! empty( $quiz_post->post_password ) ) ) {
$quiz_post_status = 'password';
}
$output_quizzes[] = array(
'ID' => $quiz_post->ID,
'expanded' => true,
'post_title' => $quiz_post->post_title,
'post_status' => $quiz_post_status,
'type' => $quiz_post->post_type,
'url' => learndash_get_step_permalink( $quiz_post->ID, $course_id ),
'edit_link' => get_edit_post_link( $quiz_post->ID, '' ),
'tree' => array(),
);
}
}
// Merge sections at Outline.
$sections_raw = get_post_meta( $course_id, 'course_sections', true );
$sections = ! empty( $sections_raw ) ? json_decode( $sections_raw ) : array();
if ( ( is_array( $sections ) ) && ( ! empty( $sections ) ) ) {
foreach ( $sections as $section ) {
if ( ! is_object( $section ) ) {
continue;
}
if ( ( ! property_exists( $section, 'ID' ) ) || ( empty( $section->ID ) ) ) {
continue;
}
if ( ! property_exists( $section, 'order' ) ) {
continue;
}
if ( ( ! property_exists( $section, 'post_title' ) ) || ( empty( $section->post_title ) ) ) {
continue;
}
if ( ( ! property_exists( $section, 'type' ) ) || ( empty( $section->type ) ) ) {
continue;
}
array_splice( $output_lessons, (int) $section->order, 0, array( $section ) );
}
}
}
}
// Output data.
$data['outline'] = array(
'lessons' => $output_lessons,
'quizzes' => $output_quizzes,
'sections' => $sections,
);
return $data;
}