ld_student.php
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<?php
/**
* LearnDash `[student]` shortcode processing.
*
* @since 2.1.0
*
* @package LearnDash\Shortcodes
*/
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* Builds the `[student]` shortcode output.
*
* Shortcode to display content to users that have access to current course ID.
*
* @global boolean $learndash_shortcode_used
*
* @since 2.1.0
*
* @param array $atts {
* An array of shortcode attributes.
*
* @type int $course_id Course ID. Default current course ID.
* @type int $user_id User ID. Default current user ID.
* @type string $content The shortcode content. Default null.
* @type boolean $autop Whether to replace line breaks with paragraph elements. Default true.
* }
* @param string $content The shortcode content. Default empty.
* @param string $shortcode_slug The shortcode slug. Default 'student'.
*
* @return string The `student` shortcode output.
*/
function learndash_student_check_shortcode( $atts = array(), $content = '', $shortcode_slug = 'student' ) {
global $learndash_shortcode_used;
if ( ( ! empty( $content ) ) && ( is_user_logged_in() ) ) {
if ( ! is_array( $atts ) ) {
if ( ! empty( $atts ) ) {
$atts = array( $atts );
} else {
$atts = array();
}
}
$defaults = array(
'course_id' => '',
'group_id' => '',
'user_id' => get_current_user_id(),
'content' => $content,
'autop' => true,
);
$atts = wp_parse_args( $atts, $defaults );
/** This filter is documented in includes/shortcodes/ld_course_resume.php */
$atts = apply_filters( 'learndash_shortcode_atts', $atts, $shortcode_slug );
if ( ( true === $atts['autop'] ) || ( 'true' === $atts['autop'] ) || ( '1' === $atts['autop'] ) ) {
$atts['autop'] = true;
} else {
$atts['autop'] = false;
}
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['group_id'] ) ) {
if ( learndash_get_post_type_slug( 'group' ) !== get_post_type( $atts['group_id'] ) ) {
$atts['group_id'] = 0;
}
}
// If 'course_id' and 'group_id' are empty we check if we are showing a Course or Group related post type.
if ( ( empty( $atts['course_id'] ) ) && ( empty( $atts['group_id'] ) ) ) {
$viewed_post_id = (int) get_the_ID();
if ( ! empty( $viewed_post_id ) ) {
if ( in_array( get_post_type( $viewed_post_id ), learndash_get_post_types( 'course' ), true ) ) {
$atts['course_id'] = learndash_get_course_id( $viewed_post_id );
} elseif ( get_post_type( $viewed_post_id ) === learndash_get_post_type_slug( 'group' ) ) {
$atts['group_id'] = $viewed_post_id;
}
}
}
/**
* Filters student shortcode attributes.
*
* @param array $attributes An array of student shortcode attributes.
*/
$atts = apply_filters( 'learndash_student_shortcode_atts', $atts );
$atts['user_id'] = absint( $atts['user_id'] );
$atts['group_id'] = absint( $atts['group_id'] );
$atts['course_id'] = absint( $atts['course_id'] );
$view_content = false;
if ( ( ! empty( $atts['user_id'] ) ) && ( get_current_user_id() === $atts['user_id'] ) ) {
if ( ! empty( $atts['course_id'] ) ) {
// The reason we are doing this check is because 'sfwd_lms_has_access' will return true if the course does not exist.
// This needs to be changed to return some other value because true signals the calling function that all is well.
$course_id = learndash_get_course_id( $atts['course_id'] );
if ( (int) $course_id === (int) $atts['course_id'] ) {
if ( sfwd_lms_has_access( $atts['course_id'], $atts['user_id'] ) ) {
$view_content = true;
}
}
} elseif ( ! empty( $atts['group_id'] ) ) {
if ( learndash_is_user_in_group( $atts['user_id'], $atts['group_id'] ) ) {
$view_content = true;
}
} else {
$user_enrolled_courses = learndash_user_get_enrolled_courses( $atts['user_id'], array() );
$user_enrolled_groups = learndash_get_users_group_ids( $atts['user_id'] );
// If the user is enrolled in any courses or groups then we show the content.
if ( ( count( $user_enrolled_courses ) ) || ( count( $user_enrolled_groups ) ) ) {
$view_content = true;
}
}
}
/**
* Filters student shortcode if user can view content.
*
* @since 4.4.0
*
* @param bool $view_content Whether to view content.
* @param array $atts An array of shortcode attributes.
*/
$view_content = apply_filters( 'learndash_student_shortcode_view_content', $view_content, $atts );
if ( $view_content ) {
$learndash_shortcode_used = true;
$atts['content'] = do_shortcode( $atts['content'] );
$shortcode_out = SFWD_LMS::get_template(
'learndash_course_student_message',
array(
'shortcode_atts' => $atts,
),
false
);
if ( ! empty( $shortcode_out ) ) {
$content = '<div class="learndash-wrapper learndash-wrap learndash-shortcode-wrap">' . $shortcode_out . '</div>';
}
} else {
$content = '';
}
}
if ( ! is_user_logged_in() ) {
$content = '';
}
return $content;
}
add_shortcode( 'student', 'learndash_student_check_shortcode' );