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class.llms.shortcodes.php
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class.llms.shortcodes.php
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<?php
/**
* LifterLMS Shortcodes
*
* @package LifterLMS/Classes/Shortcodes
*
* @since 1.0.0
* @version 6.4.0
*/
defined( 'ABSPATH' ) || exit;
/**
* LLMS_Shortcodes
*
* @since 1.0.0
* @since 4.0.0 Remove reliance on deprecated class `LLMS_Quiz_Legacy` & stop registering deprecated shortcode `[courses]` and `[lifterlms_user_statistics]`.
*/
class LLMS_Shortcodes {
/**
* Constructor.
*
* @since 6.4.0
* @return void
*/
public function __construct() {
add_action( 'init', array( 'LLMS_Shortcodes', 'init' ) );
}
/**
* Initialize shortcodes array.
*
* @since 1.0.0
* @since 3.11.1 Unknown.
* @since 4.0.0 Stop registering previously deprecated shortcode `[courses]` and `[lifterlms_user_statistics]`.
* @since 6.0.0 Removed loading of class files that don't instantiate their class in favor of autoloading.
* @since 6.4.0 Allowed `LLMS_Shortcode_User_Info` class to be filtered.
*
* @return void
*/
public static function init() {
// New method.
$scs = apply_filters(
/**
* Filters the shortcodes to initialize.
*
* @since Unknown
*
* @param string[] $shortcodes Array of shortcode class names to initialize.
*/
'llms_load_shortcodes',
array(
'LLMS_Shortcode_Course_Author',
'LLMS_Shortcode_Course_Continue',
'LLMS_Shortcode_Course_Continue_Button',
'LLMS_Shortcode_Course_Meta_Info',
'LLMS_Shortcode_Course_Outline',
'LLMS_Shortcode_Course_Prerequisites',
'LLMS_Shortcode_Course_Reviews',
'LLMS_Shortcode_Course_Syllabus',
'LLMS_Shortcode_Courses',
'LLMS_Shortcode_Hide_Content',
'LLMS_Shortcode_Lesson_Mark_Complete',
'LLMS_Shortcode_Membership_Link',
'LLMS_Shortcode_My_Achievements',
'LLMS_Shortcode_Registration',
'LLMS_Shortcode_User_Info',
)
);
$hyphenated_file_classes = array(
'LLMS_Shortcode_User_Info',
);
foreach ( $scs as $class ) {
$separator = in_array( $class, $hyphenated_file_classes, true ) ? '-' : '.';
$filename = "class{$separator}" . strtolower( str_replace( '_', $separator, $class ) );
/**
* Filters the path of the shortcode class file.
*
* @since Unknown
*
* @param string $file The shortcode class file name.
* @param string $class The shortcode class name.
*/
$path = apply_filters( 'llms_load_shortcode_path', LLMS_PLUGIN_DIR . "includes/shortcodes/{$filename}.php", $class );
if ( file_exists( $path ) ) {
require_once $path;
}
}
/**
* @deprecated 2.0.0
* @todo deprecate
*/
add_shortcode( 'courses', array( LLMS_Shortcode_Courses::instance(), 'output' ) );
// Old method.
$shortcodes = array(
'lifterlms_access_plan_button' => __CLASS__ . '::access_plan_button',
'lifterlms_my_account' => __CLASS__ . '::my_account',
'lifterlms_checkout' => __CLASS__ . '::checkout',
'lifterlms_course_info' => __CLASS__ . '::course_info',
'lifterlms_course_progress' => __CLASS__ . '::course_progress',
'lifterlms_course_title' => __CLASS__ . '::course_title',
'lifterlms_related_courses' => __CLASS__ . '::related_courses',
'lifterlms_login' => __CLASS__ . '::login',
'lifterlms_pricing_table' => __CLASS__ . '::pricing_table',
'lifterlms_memberships' => __CLASS__ . '::memberships',
);
foreach ( $shortcodes as $shortcode => $function ) {
add_shortcode(
/**
* Filters the shortcode tag.
*
* The dynamic portion of the hook name, `$shortcode` refers to the shortcode tag itself.
*
* @since Unknown
*
* @param string $shortcode The shortcode tag.
*/
apply_filters( "{$shortcode}_shortcode_tag", $shortcode ),
$function
);
}
}
/**
* Allows shortcodes to enqueue a script by handle
*
* Ensures the handle is registered and that it hasn't already been enqueued.
*
* @since 3.0.2
*
* @param string $handle Script handle used to register the script.
* The script should be registered in `LLMS_Frontend_Assets`.
* @return void
*/
private static function enqueue_script( $handle ) {
if ( wp_script_is( $handle, 'registered' ) && ! wp_script_is( $handle, 'enqueued' ) ) {
wp_enqueue_script( $handle );
}
}
/**
* Retrieve the course ID from within a course, lesson, or quiz
*
* @since 2.7.9
* @since 3.16.0 Unknown.
* @since 4.0.0 Remove reliance on deprecated class `LLMS_Quiz_Legacy`.
*
* @return int
*/
private static function get_course_id() {
$id = get_the_ID();
if ( is_course() ) {
return $id;
}
$course = llms_get_post_parent_course( $id );
if ( $course ) {
return $course->get( 'id' );
}
return 0;
}
/**
* Creates a wrapper for shortcode.
*
* @return string
*/
public static function shortcode_wrapper(
$function,
$atts = array(),
$wrapper = array(
'class' => 'lifterlms',
'before' => null,
'after' => null,
) ) {
ob_start();
$before = empty( $wrapper['before'] ) ? '<div class="' . esc_attr( $wrapper['class'] ) . '">' : $wrapper['before'];
$after = empty( $wrapper['after'] ) ? '</div>' : $wrapper['after'];
echo $before;
call_user_func( $function, $atts );
echo $after;
return ob_get_clean();
}
/**
* Create a button for an Access Plan
*
* @since 3.2.5
* @since 3.4.1 Unknown.
*
* @param array $atts Associative array of shortcode attributes.
* @param string $content Optional. Shortcode content, enables custom text/html in the button. Default empty string.
* @return string
*/
public static function access_plan_button( $atts, $content = '' ) {
$atts = shortcode_atts(
array(
'classes' => '',
'id' => null,
'size' => '', // Can be: small, large.
'type' => 'primary', // Can be: primary, secondary, action, danger.
),
$atts,
'lifterlms_access_plan_button'
);
$ret = '';
if ( ! empty( $atts['id'] ) && is_numeric( $atts['id'] ) ) {
$plan = new LLMS_Access_Plan( $atts['id'] );
$classes = 'llms-button-' . $atts['type'];
$classes .= ! empty( $atts['size'] ) ? ' ' . $atts['size'] : '';
$classes .= ! empty( $atts['classes'] ) ? ' ' . $atts['classes'] : '';
$text = empty( $content ) ? $plan->get_enroll_text() : $content;
$ret = '<a class="' . esc_attr( $classes ) . '" href="' . esc_url( $plan->get_checkout_url() ) . '" title="' . esc_attr( $plan->get( 'title' ) ) . '">' . $text . '</a>';
}
/**
* Filters the access plan button shortcode output
*
* @since unknown
*
* @param string $ret The shortcode output.
* @param array $atts Associative array of shortcode attributes.
* @param string $content Shortcode content, enables custom text/html in the button. Default empty string.
*/
return apply_filters( 'llms_shortcode_access_plan_button', $ret, $atts, $content );
}
/**
* Add a login form
*
* @since 3.0.4
* @since 3.19.4 Unknown.
*
* @param array $atts Associative array of shortcode attributes.
* @return string
*/
public static function login( $atts ) {
extract(
shortcode_atts(
array(
'layout' => 'columns',
'redirect' => get_permalink(),
),
$atts,
'lifterlms_login'
)
);
ob_start();
llms_print_notices();
llms_get_login_form( null, $redirect, $layout );
return ob_get_clean();
}
/**
* My account shortcode
*
* Used for displaying account.
*
* @see self::shortcode_wrapper()
*
* @return string
*/
public static function my_account( $atts ) {
return self::shortcode_wrapper( array( 'LLMS_Shortcode_My_Account', 'output' ), $atts );
}
/**
* Memberships Shortcode
*
* Used for shortcode [lifterlms_memberships].
*
* @since 1.4.4
* @since 3.0.2
* @since 4.12.0 Handle pagination when the shortcode is used on the static front page.
*
* @param array $atts Associative array of shortcode attributes.
* @return string
*/
public static function memberships( $atts ) {
// Enqueue match height so the loop isn't all messed up visually.
self::enqueue_script( 'llms-jquery-matchheight' );
if ( isset( $atts['category'] ) ) {
$tax = array(
array(
'taxonomy' => 'membership_cat',
'field' => 'slug',
'terms' => $atts['category'],
),
);
}
$args = array(
'paged' => is_front_page() ? get_query_var( 'page' ) : get_query_var( 'paged' ),
'post_type' => 'llms_membership',
'post_status' => 'publish',
'posts_per_page' => isset( $atts['posts_per_page'] ) ? $atts['posts_per_page'] : -1,
'order' => isset( $atts['order'] ) ? $atts['order'] : 'ASC',
'orderby' => isset( $atts['orderby'] ) ? $atts['orderby'] : 'title',
'tax_query' => isset( $tax ) ? $tax : '',
);
if ( isset( $atts['id'] ) ) {
$args['p'] = $atts['id'];
}
$query = new WP_Query( $args );
ob_start();
if ( $query->have_posts() ) :
/**
* lifterlms_before_loop hook
*
* @hooked lifterlms_loop_start - 10
*/
do_action( 'lifterlms_before_loop' );
while ( $query->have_posts() ) :
$query->the_post();
llms_get_template_part( 'loop/content', get_post_type() );
endwhile;
/**
* lifterlms_before_loop hook
*
* @hooked lifterlms_loop_end - 10
*/
do_action( 'lifterlms_after_loop' );
echo '<nav class="llms-pagination">';
echo paginate_links(
array(
'base' => str_replace( 999999, '%#%', esc_url( get_pagenum_link( 999999 ) ) ),
'format' => '?page=%#%',
'total' => $query->max_num_pages,
'current' => max( 1, $args['paged'] ),
'prev_next' => true,
'prev_text' => '«' . __( 'Previous', 'lifterlms' ),
'next_text' => __( 'Next', 'lifterlms' ) . '»',
'type' => 'list',
)
);
echo '</nav>';
else :
llms_get_template( 'loop/none-found.php' );
endif;
wp_reset_postdata();
return ob_get_clean();
}
/**
* Checkout shortcode
*
* Used for displaying checkout form.
*
* @see self::shortcode_wrapper
*
* @param array $atts Associative array of shortcode attributes.
* @return string
*/
public static function checkout( $atts ) {
return self::shortcode_wrapper( array( 'LLMS_Shortcode_Checkout', 'output' ), $atts );
}
/**
* Output various pieces of metadata about a course
*
* @since 3.0.0
* @since 3.4.1 Unknown.
*
* @param array $atts Array of user-submitted shortcode attributes.
* @return string
*/
public static function course_info( $atts ) {
extract(
shortcode_atts(
array(
'date_format' => 'F j, Y', // If $type is date, a custom date format can be supplied.
'id' => get_the_ID(),
'key' => '',
'type' => '', // Can either be: date, price or empty string.
),
$atts,
'lifterlms_course_info'
)
);
$ret = '';
if ( $key ) {
$course = new LLMS_Course( $id );
switch ( $type ) {
case 'date':
$ret = $course->get_date( $key, $date_format );
break;
case 'price':
$ret = $course->get_price( $key );
break;
default:
$ret = $course->get( $key );
}
}
/**
* Filters the course info shortcode output
*
* @since unknown
*
* @param string $ret The shortcode output.
* @param array $atts Associative array of shortcode attributes.
*/
return apply_filters( 'llms_shortcode_course_info', $ret, $atts );
}
/**
* Course Progress Bar Shortcode
*
* @since unknown
* @since 3.38.0 Added logic to display the bar only to enrolled user.
*
* @param array $atts Associative array of shortcode attributes.
* @return string
*/
public static function course_progress( $atts ) {
$course_id = self::get_course_id();
if ( ! $course_id ) {
return '';
}
if ( ! empty( $atts['check_enrollment'] ) && ! llms_is_user_enrolled( get_current_user_id(), $course_id ) ) {
return '';
}
$course = new LLMS_Course( $course_id );
$course_progress = $course->get_percent_complete();
return lifterlms_course_progress_bar( $course_progress, false, false, false );
}
/**
* Retrieve the Course Title
*
* @since unknown
* @since 2.7.9 Unknown
*
* @param array $atts Associative array of shortcode attributes.
* @return string
*/
public static function course_title( $atts ) {
$course_id = self::get_course_id();
if ( ! $course_id ) {
return '';
}
return get_the_title( $course_id );
}
/**
* Courses shortcode
*
* Used for [lifterlms_related_courses].
*
* @since unknown
*
* @param array $atts Associative array of shortcode attributes.
* @return array
*/
public static function related_courses( $atts ) {
ob_start();
if ( isset( $atts['category'] ) ) {
$tax = array(
array(
'taxonomy' => 'course_cat',
'field' => 'slug',
'terms' => $atts['category'],
),
);
}
$query = new WP_Query(
array(
'post_type' => 'course',
'post_status' => 'publish',
'posts_per_page' => isset( $atts['per_page'] ) ? $atts['per_page'] : -1,
'order' => isset( $atts['order'] ) ? $atts['order'] : 'ASC',
'orderby' => isset( $atts['orderby'] ) ? $atts['orderby'] : 'title',
'tax_query' => isset( $tax ) ? $tax : '',
)
);
if ( $query->have_posts() ) {
lifterlms_course_loop_start();
while ( $query->have_posts() ) :
$query->the_post();
llms_get_template_part( 'content', 'course' );
endwhile;
lifterlms_course_loop_end();
$courses = ob_get_clean();
wp_reset_postdata();
return $courses;
}
}
/**
* Output a Pricing Table anywhere a shortcode can be output
*
* @since 3.2.5
* @since 3.23.0 Unknown.
* @since 3.38.0 Use `in_array()` with strict comparison.
*
* @param array $atts Associative array of shortcode attributes.
* @return string
*/
public static function pricing_table( $atts ) {
$atts = shortcode_atts(
array(
'product' => null,
),
$atts,
'lifterlms_pricing_table'
);
$ret = '';
// get product id from loop if used from within a course or membership.
if ( ! $atts['product'] ) {
$id = get_the_ID();
if ( in_array( get_post_type( $id ), array( 'course', 'llms_membership' ), true ) ) {
$atts['product'] = get_the_ID();
}
}
if ( ! empty( $atts['product'] ) && is_numeric( $atts['product'] ) ) {
// enqueue match height for height alignments.
self::enqueue_script( 'llms-jquery-matchheight' );
ob_start();
lifterlms_template_pricing_table( $atts['product'] );
$ret = ob_get_clean();
}
/**
* Filters the pricing table shortcode output
*
* @since unknown
*
* @param string $ret The shortcode output.
* @param array $atts Associative array of shortcode attributes.
*/
return apply_filters( 'llms_shortcode_pricing_table', $ret, $atts );
}
}
return new LLMS_Shortcodes();