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<?php
/**
* LearnDash `[course_content]` shortcode processing.
*
* @since 2.1.0
* @package LearnDash\Shortcodes
*/
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
use LearnDash\Core\Utilities\Cast;
/**
* Builds the `[course_content]` shortcode output.
*
* @global boolean $learndash_shortcode_used
*
* @since 2.1.0
*
* @param array $atts {
* The shortcode attributes.
*
* @type int $course_id The ID of the course. Default 0.
* @type boolean|int $num Unused Default false.
* }
* @param string $content The shortcode content. Default empty.
* @param string $shortcode_slug The shortcode slug. Default 'course_content'.
*
* @return string The output of the shortcode.
*/
function learndash_course_content_shortcode( $atts = array(), $content = '', $shortcode_slug = 'course_content' ) {
global $learndash_shortcode_used, $course_pager_results;
static $shown_content = array();
if ( ! is_array( $atts ) ) {
$atts = array();
}
$viewed_post_id = (int) get_the_ID();
$viewed_post_type = get_post_type( $viewed_post_id );
$atts_defaults = array(
'course_id' => '',
'post_id' => '',
'group_id' => '',
'paged' => 1,
'num' => '',
'wrapper' => 1,
);
$atts = shortcode_atts( $atts_defaults, $atts );
/** This filter is documented in includes/shortcodes/ld_course_resume.php */
$atts = apply_filters( 'learndash_shortcode_atts', $atts, $shortcode_slug );
// This is not an official shortcode attribute so we add it after the filter as it will be used below.
$atts['user_id'] = get_current_user_id();
if ( ! empty( $atts['course_id'] ) ) {
if ( learndash_get_post_type_slug( 'course' ) !== get_post_type( $atts['course_id'] ) ) {
$atts['course_id'] = 0;
}
}
if ( ! empty( $atts['post_id'] ) ) {
if ( ! in_array( get_post_type( $atts['post_id'] ), learndash_get_post_types( 'course' ), true ) ) {
$atts['post_id'] = 0;
}
}
if ( ! empty( $atts['group_id'] ) ) {
if ( get_post_type( $atts['group_id'] ) !== learndash_get_post_type_slug( 'group' ) ) {
$atts['group_id'] = 0;
}
}
if ( ( '' === $atts['course_id'] ) && ( ! empty( $viewed_post_id ) ) && ( in_array( get_post_type( $viewed_post_id ), learndash_get_post_types( 'course' ), true ) ) ) {
$atts['course_id'] = learndash_get_course_id( $viewed_post_id );
}
/**
* Support for legacy course_content logic. If the $atts['course_id'] is set, but not the same as
* the viewed post ID. And the $atts['post_id'] is literally blank string. Then we will set the
* $atts['post_id'] to 0 (int) to force the logic to run.
*/
if ( ( '' === $atts['post_id'] ) && ( ! empty( $atts['course_id'] ) ) && ( absint( $atts['course_id'] ) !== $viewed_post_id ) ) {
$atts['post_id'] = '0';
}
// If the 'post_id' is set to '0' it will trigger showing the course lessons listing.
if ( '0' === $atts['post_id'] ) {
if ( ! empty( $atts['course_id'] ) ) {
$atts['post_id'] = $atts['course_id'];
}
} else {
if ( empty( $atts['post_id'] ) ) {
if ( ! empty( $viewed_post_id ) ) {
if ( in_array( get_post_type( $viewed_post_id ), learndash_get_post_types( 'course' ), true ) ) {
$atts['post_id'] = $viewed_post_id;
} elseif ( get_post_type( $viewed_post_id ) === learndash_get_post_type_slug( 'group' ) ) {
$atts['group_id'] = $viewed_post_id;
$atts['post_id'] = 0;
$atts['course_id'] = 0;
} else {
if ( ! empty( $atts['course_id'] ) ) {
$atts['post_id'] = $atts['course_id'];
} elseif ( ! empty( $atts['group_id'] ) ) {
$atts['post_id'] = $atts['group_id'];
}
}
}
}
}
$atts['course_id'] = absint( $atts['course_id'] );
$atts['post_id'] = absint( $atts['post_id'] );
$atts['group_id'] = absint( $atts['group_id'] );
$atts['user_id'] = absint( $atts['user_id'] );
$atts['paged'] = absint( $atts['paged'] );
$atts['wrapper'] = (bool) $atts['wrapper'];
// Protect post data. User ID is already protected as it is overridden above.
if (
! learndash_shortcode_can_current_user_access_post(
Cast::to_int( $atts['course_id'] )
)
|| ! learndash_shortcode_can_current_user_access_post(
Cast::to_int( $atts['post_id'] )
)
|| ! learndash_shortcode_can_current_user_access_post(
Cast::to_int(
$atts['group_id']
)
)
) {
return '';
}
if ( '' !== $atts['num'] ) {
$atts['num'] = absint( $atts['num'] );
}
if ( ! empty( $atts['group_id'] ) ) {
$shown_content_key = $atts['group_id'] . '_' . $atts['user_id'];
} elseif ( ! empty( $atts['course_id'] ) ) {
$shown_content_key = $atts['course_id'] . '_' . $atts['post_id'] . '_' . $atts['user_id'];
}
if ( ( ! isset( $shown_content_key ) ) || ( empty( $shown_content_key ) ) ) {
return $content;
}
$shown_content[ $shown_content_key ] = '';
if ( ( ! empty( $atts['group_id'] ) ) && ( ( learndash_get_post_type_slug( 'group' ) === get_post_type( $atts['group_id'] ) ) ) ) {
if ( learndash_is_user_in_group( $atts['user_id'], $atts['group_id'] ) ) {
$has_access = true;
$group_status = learndash_get_user_group_status( $atts['group_id'], $atts['user_id'] );
} else {
$has_access = false;
$group_status = '';
}
if ( '' === $atts['num'] ) {
$group_courses_per_page = learndash_get_group_courses_per_page( $atts['group_id'] );
if ( ! empty( $group_courses_per_page ) ) {
$atts['num'] = absint( $group_courses_per_page );
} else {
unset( $atts['num'] );
}
}
$group_courses = learndash_get_group_courses_list( $atts['group_id'], $atts );
$has_group_content = ( ( is_array( $group_courses ) ) && ( ! empty( $group_courses ) ) );
$show_group_content = ( ! $has_access && 'on' === learndash_get_setting( $atts['group_id'], 'group_disable_content_table' ) ? false : true );
if ( $has_group_content && $show_group_content ) {
$level = ob_get_level();
ob_start();
SFWD_LMS::get_template(
'shortcodes/group_content_shortcode',
array(
'user_id' => $atts['user_id'],
'group_id' => $atts['group_id'],
'group_status' => $group_status,
'group_courses' => $group_courses,
'has_access' => $has_access,
'course_pager_results' => $course_pager_results,
),
true
);
$shortcode_out = learndash_ob_get_clean( $level );
if ( ( defined( 'LEARNDASH_NEW_LINE_AND_CR_TO_SPACE' ) ) && ( true === LEARNDASH_NEW_LINE_AND_CR_TO_SPACE ) ) {
$shortcode_out = str_replace( array( "\n", "\r" ), ' ', $shortcode_out );
}
if ( ! empty( $shortcode_out ) ) {
$shown_content[ $shown_content_key ] .= $shortcode_out;
}
}
} elseif ( ( ! empty( $atts['post_id'] ) ) && ( ( learndash_get_post_type_slug( 'course' ) === get_post_type( $atts['post_id'] ) ) ) ) {
$course = get_post( $atts['post_id'] );
$post_post = $course;
$course_id = intval( $atts['course_id'] );
$user_id = $atts['user_id'];
if ( ! empty( $user_id ) ) {
$logged_in = true;
} else {
$logged_in = false;
}
if ( '' === $atts['num'] ) {
$lessons_per_page = learndash_get_course_lessons_per_page( $atts['course_id'] );
if ( ! empty( $lessons_per_page ) ) {
$atts['num'] = absint( $lessons_per_page );
} else {
unset( $atts['num'] );
}
}
$course_settings = learndash_get_setting( $course );
$courses_options = learndash_get_option( 'sfwd-courses' );
$lessons_options = learndash_get_option( 'sfwd-lessons' );
$quizzes_options = learndash_get_option( 'sfwd-quiz' );
$lesson_progression_enabled = learndash_lesson_progression_enabled( $atts['post_id'] );
$course_status = learndash_course_status( $atts['post_id'], null );
$has_access = sfwd_lms_has_access( $atts['post_id'], $atts['user_id'] );
$lessons = learndash_get_course_lessons_list( $course, $atts['user_id'], $atts );
$quizzes = learndash_get_course_quiz_list( $course );
$has_course_content = ( ! empty( $lessons ) || ! empty( $quizzes ) );
$has_topics = false;
if ( ! empty( $lessons ) ) {
foreach ( $lessons as $lesson ) {
$lesson_topics[ $lesson['post']->ID ] = learndash_topic_dots( $lesson['post']->ID, false, 'array', $atts['user_id'], $atts['post_id'] );
if ( ! empty( $lesson_topics[ $lesson['post']->ID ] ) ) {
$has_topics = true;
$topic_pager_args = array(
'course_id' => $course_id,
'lesson_id' => $lesson['post']->ID,
);
$lesson_topics[ $lesson['post']->ID ] = learndash_process_lesson_topics_pager( $lesson_topics[ $lesson['post']->ID ], $topic_pager_args );
}
}
}
$level = ob_get_level();
ob_start();
$template_file = SFWD_LMS::get_template( 'course_content_shortcode', null, null, true );
if ( ! empty( $template_file ) ) {
include $template_file;
}
$shortcode_out = learndash_ob_get_clean( $level );
if ( ( defined( 'LEARNDASH_NEW_LINE_AND_CR_TO_SPACE' ) ) && ( true === LEARNDASH_NEW_LINE_AND_CR_TO_SPACE ) ) {
$shortcode_out = str_replace( array( "\n", "\r" ), ' ', $shortcode_out );
}
$user_has_access = $has_access ? 'user_has_access' : 'user_has_no_access';
if ( ! empty( $shortcode_out ) ) {
if ( $atts['wrapper'] ) {
$shortcode_out = '<div class="learndash ' . $user_has_access . '" id="learndash_post_' . $course_id . '">' . $shortcode_out . '</div>';
}
$shown_content[ $shown_content_key ] .= $shortcode_out;
}
} elseif ( ( ! empty( $atts['post_id'] ) ) && ( ( learndash_get_post_type_slug( 'topic' ) === get_post_type( $atts['post_id'] ) ) ) ) {
$post_post = get_post( $atts['post_id'] );
$lesson_id = learndash_course_get_single_parent_step( $atts['course_id'], $post_post->ID );
if ( empty( $lesson_id ) ) {
return '';
}
$lesson_id = absint( $lesson_id );
$quizzes = learndash_get_lesson_quiz_list( $post_post, null, $atts['course_id'] );
$quizids = array();
if ( ! empty( $quizzes ) ) {
foreach ( $quizzes as $quiz ) {
$quizids[ $quiz['post']->ID ] = $quiz['post']->ID;
}
}
if ( learndash_lesson_hasassignments( $post_post ) && ! empty( $atts['user_id'] ) ) { // cspell:disable-line.
$bypass_course_limits_admin_users = learndash_can_user_bypass( $atts['user_id'], 'learndash_lesson_assignment' );
$course_children_steps_completed = learndash_user_is_course_children_progress_complete( $atts['user_id'], $atts['course_id'], $atts['post_id'] );
if ( ( learndash_lesson_progression_enabled() && ( true === $course_children_steps_completed ) ) || ( ! learndash_lesson_progression_enabled() ) || ( true === $bypass_course_limits_admin_users ) ) {
$level = ob_get_level();
ob_start();
SFWD_LMS::get_template(
'assignment/listing.php',
array(
'course_step_post' => $post_post,
'user_id' => $atts['user_id'],
'course_id' => $atts['course_id'],
'context' => 'topic',
),
true
);
$shortcode_out = learndash_ob_get_clean( $level );
if ( ! empty( $shortcode_out ) ) {
$shown_content[ $shown_content_key ] .= $shortcode_out;
}
}
}
if ( ! empty( $quizzes ) ) {
$level = ob_get_level();
ob_start();
SFWD_LMS::get_template(
'quiz/listing.php',
array(
'user_id' => $atts['user_id'],
'course_id' => $atts['course_id'],
'lesson_id' => $lesson_id,
'quizzes' => $quizzes,
'context' => 'topic',
),
true
);
$shortcode_out = learndash_ob_get_clean( $level );
if ( ! empty( $shortcode_out ) ) {
$shown_content[ $shown_content_key ] .= $shortcode_out;
}
}
} elseif ( ( ! empty( $atts['post_id'] ) ) && ( ( learndash_get_post_type_slug( 'lesson' ) === get_post_type( $atts['post_id'] ) ) ) ) {
$post_post = get_post( $atts['post_id'] );
if ( learndash_lesson_hasassignments( $post_post ) && ! empty( $atts['user_id'] ) ) { // cspell:disable-line.
$bypass_course_limits_admin_users = learndash_can_user_bypass( $atts['user_id'], 'learndash_lesson_assignment' );
$course_children_steps_completed = learndash_user_is_course_children_progress_complete( $atts['user_id'], $atts['course_id'], $atts['post_id'] );
if ( ( learndash_lesson_progression_enabled() && ( true === $course_children_steps_completed ) ) || ( ! learndash_lesson_progression_enabled() ) || ( true === $bypass_course_limits_admin_users ) ) {
$level = ob_get_level();
ob_start();
SFWD_LMS::get_template(
'assignment/listing.php',
array(
'course_step_post' => $post_post,
'user_id' => $atts['user_id'],
'course_id' => $atts['course_id'],
'context' => 'lesson',
),
true
);
$shortcode_out = learndash_ob_get_clean( $level );
if ( ! empty( $shortcode_out ) ) {
$shown_content[ $shown_content_key ] .= $shortcode_out;
}
}
}
if ( '' === $atts['num'] ) {
$topics_per_page = learndash_get_course_topics_per_page( $atts['course_id'], $atts['post_id'] );
if ( ! empty( $topics_per_page ) ) {
$atts['num'] = absint( $topics_per_page );
} else {
unset( $atts['num'] );
}
}
$topics = learndash_topic_dots( $atts['post_id'], false, 'array', null, $atts['course_id'] );
if ( ( isset( $atts['num'] ) ) && ( ! empty( $atts['num'] ) ) ) {
$topic_pager_args = array(
'course_id' => $atts['course_id'],
'lesson_id' => $atts['post_id'],
'per_page' => $atts['num'],
);
$topics = learndash_process_lesson_topics_pager( $topics, $topic_pager_args );
}
$quizids = array();
$quizzes = learndash_get_lesson_quiz_list( $post_post, null, $atts['course_id'] );
if ( ! empty( $quizzes ) ) {
foreach ( $quizzes as $quiz ) {
$quizids[ $quiz['post']->ID ] = $quiz['post']->ID;
}
}
if ( ! empty( $topics ) || ! empty( $quizzes ) ) {
$lesson = array(
'post' => $post_post,
);
$level = ob_get_level();
ob_start();
SFWD_LMS::get_template(
'lesson/listing.php',
array(
'course_id' => $atts['course_id'],
'lesson' => $lesson,
'topics' => $topics,
'quizzes' => $quizzes,
'user_id' => $atts['user_id'],
),
true
);
$shortcode_out = learndash_ob_get_clean( $level );
if ( ! empty( $shortcode_out ) ) {
$shown_content[ $shown_content_key ] .= '<div class="ld-lesson-topic-list">' . $shortcode_out . '</div>';
}
}
}
if ( ( isset( $shown_content[ $shown_content_key ] ) ) && ( ! empty( $shown_content[ $shown_content_key ] ) ) ) {
$content .= '<div class="learndash-wrapper learndash-wrap learndash-shortcode-wrap learndash-shortcode-wrap-' . $shortcode_slug . '-' . $shown_content_key . '">' . $shown_content[ $shown_content_key ] . '</div>';
$learndash_shortcode_used = true;
}
return $content;
}
add_shortcode( 'course_content', 'learndash_course_content_shortcode', 10, 3 );