%PDF-
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Mini Shell
Mini Shell
<?php
/**
* Class LP_Course_Item.
*
* @author ThimPress
* @package LearnPress/Classes
* @version 3.0.0
*/
/**
* Prevent loading this file directly
*/
defined( 'ABSPATH' ) || exit();
if ( ! class_exists( 'LP_Course_Item' ) ) {
/**
* Class LP_Course_Item.
*/
class LP_Course_Item extends LP_Abstract_Post_Data implements ArrayAccess {
/**
* The icon maybe used somewhere.
*
* @var string
*/
protected $_icon_class = '';
/**
* The type of item.
*
* @var string
*/
protected $_item_type = '';
/**
* @var LP_Course
*/
protected $_course = null;
/**
* @var LP_Course_Section
*/
protected $_section = null;
/**
* @var null
*/
protected $_content = null;
/**
* @var bool
*/
protected $_preview = '';
/**
* LP_Course_Item constructor.
*
* @param $item mixed
* @param $args array
*/
public function __construct( $item, $args = null ) {
parent::__construct( $item, $args );
$this->add_support( 'comments', get_post_field( 'comment_status', $this->get_id() ) === 'open' );
}
/**
* Get type of item.
*
* @param string $context
*
* @return string
*/
public function get_item_type( $context = '' ) {
$post_type = $this->_item_type;
if ( $context === 'display' ) {
if ( $post_type_object = get_post_type_object( $post_type ) ) {
$post_type = $post_type_object->labels->singular_name;
}
}
return $post_type;
}
/**
* @return string
*/
public function get_icon_class() {
return $this->_icon_class;
}
/**
* @param string $context
*
* @return bool
*/
public function is_preview( $context = 'display' ) {
if ( $this->get_post_type() === LP_LESSON_CPT && '' === $this->_preview ) {
$is_preview = get_post_meta( $this->get_id(), '_lp_preview', true ) == 'yes';
if ( $course = $this->get_course() ) {
$user_id = get_current_user_id();
if ( false === ( $cached = wp_cache_get( 'item-' . $user_id . '-' . $course->get_id() . '-' . $this->get_id(), 'lp-preview-items' ) ) ) {
$user = learn_press_get_current_user();
if ( $user->has_enrolled_course( $course->get_id() ) ) {
$is_preview = false;
}
wp_cache_set( 'item-' . $user_id . '-' . $course->get_id() . '-' . $this->get_id(), $is_preview ? 'yes' : 'no', 'lp-preview-items' );
} else {
$is_preview = $cached === 'yes' ? true : false;
}
}
$this->_preview = $is_preview;
}
return $context === 'display' ? apply_filters( 'learn-press/course-item-preview', $this->_preview, $this->get_id() ) : $this->_preview;
}
/**
* @param string $context
*
* @return string
*/
public function get_title( $context = '' ) {
return apply_filters( 'learn-press/course-item-title', parent::get_title( $context ), $this->get_id() );
}
/**
* @return bool|false|mixed|string
*/
public function get_format() {
$format = ( false !== ( $format = wp_cache_get( 'item-format-' . $this->get_id(), 'lp-item-formats' ) ) ) ? $format : get_post_format( $this->get_id() );
if ( ! $format ) {
$format = 'standard';
}
return $format;
}
/**
* Return true if item can be shown in course curriculum.
*
* @return mixed
*/
public function is_visible() {
$show = true;
return apply_filters( 'learn-press/course-item-visible', $show, $this->get_item_type(), $this->get_id() );
}
/**
* Get class of item.
*
* @param string $more
* @param int $user_id
*
* @return array
*/
public function get_class( $more = '', $user_id = 0 ) {
global $lp_course_item;
$course_id = get_the_ID();
if ( false === ( $classes = wp_cache_get( 'item-' . $user_id . '-' . $this->get_id(), 'lp-post-classes' ) ) ) {
if ( ! $user_id ) {
$user_id = get_current_user_id();
}
$defaults = array(
'course-item',
'course-item-' . $this->get_item_type(),
'course-item-' . $this->get_id()
);
if ( ( 'standard' !== ( $post_format = $this->get_format() ) ) && $post_format ) {
$defaults[] = 'course-item-type-' . $post_format;
}
if ( $lp_course_item && $lp_course_item->get_id() == $this->get_id() ) {
$defaults[] = 'current';
}
if ( is_array( $more ) ) {
$defaults = array_merge( $defaults, $more );
} else {
$defaults[] = $more;
}
$course_id = 0;
$enrolled = false;
if ( $this->is_preview() ) {
$defaults[] = 'item-preview';
$defaults[] = 'has-status';
} elseif ( $this->is_blocked() ) {
$defaults[] = 'item-locked';
} else {
if ( $course = $this->get_course() ) {
$course_id = $course->get_id();
if ( $course->is_free() && ! $course->is_required_enroll() ) {
$defaults[] = 'item-free';
} else {
if ( $user = learn_press_get_user( $user_id, ! $user_id ) ) {
if ( $enrolled = $user->has_enrolled_course( $course_id ) ) {
$item_status = $user->get_item_status( $this->get_id(), $course_id );
$item_grade = $user->get_item_grade( $this->get_id(), $course_id );
if ( $item_status ) {
$defaults[] = 'has-status';
$defaults[] = 'status-' . $item_status;
}
switch ( $item_status ) {
case 'started':
break;
case 'completed':
$defaults[] = $item_grade;
break;
default:
if ( $item_class = apply_filters( 'learn-press/course-item-status-class', $item_status, $item_grade, $this->get_item_type(), $this->get_id(), $course_id ) ) {
$defaults[] = $item_class;
}
}
}
}
if ( ! $enrolled ) {
$defaults[] = 'item-locked';
}
}
} else {
$defaults[] = 'item-locked';
}
}
$classes = apply_filters( 'learn-press/course-item-class', $defaults, $this->get_item_type(), $this->get_id(), $course_id );
// Filter unwanted values
$classes = is_array( $classes ) ? $classes : explode( ' ', $classes );
$classes = array_filter( $classes );
$classes = array_unique( $classes );
wp_cache_set( 'item-' . $user_id . '-' . $this->get_id(), $classes, 'lp-post-classes' );
}
return apply_filters( 'learn-press/course-item-class-cached', $classes, $this->get_item_type(), $this->get_id(), $course_id );
}
/**
* Get permalink of item inside course.
*
* @return string
*/
public function get_permalink() {
$link = false;
if ( $this->_course ) {
$link = $this->_course->get_item_link( $this->get_id() );
}
return apply_filters( 'learn-press/course-item-link', $link, $this );
}
/**
* Set course parent of this item.
*
* @param LP_Course|LP_Abstract_Course|int $course
*/
public function set_course( $course ) {
if ( is_numeric( $course ) ) {
$this->_course = learn_press_get_course( $course );
} else {
$this->_course = $course;
}
}
/**
* Return course.
*
* @return LP_Course
*/
public function get_course() {
return $this->_course;
}
/**
* @param LP_Course_Section $section
*/
public function set_section( $section ) {
$this->_section = $section;
}
/**
* @return LP_Course_Section
*/
public function get_section() {
return $this->_section;
}
/**
* Get instance of an item from post
*
* @param WP_Post|int $post
* @param LP_Course|LP_Abstract_Course|int $course
*
* @return LP_Course_Item
*/
public static function get_item( $post, $course = null ) {
$item_type = '';
$item_id = 0;
if ( is_numeric( $post ) && $post > 0 ) {
$post = get_post( $post );
}
if ( isset( $post->ID ) ) {
$item_type = $post->post_type;
$item_id = $post->ID;
}
if ( false === ( $item = wp_cache_get( $item_id, 'lp-object-classes' ) ) ) {
if ( $item_type ) {
if ( learn_press_is_support_course_item_type( $item_type ) ) {
$type = str_replace( 'lp_', '', $item_type );
$class = apply_filters( 'learn-press/course-item-object-class', false, $type, $item_type, $item_id );
if ( is_string( $class ) && class_exists( $class ) ) {
$item = new $class( $post->ID, $post );
} elseif ( $class instanceof LP_Course_Item ) {
$item = $class;
}
if ( ! $item ) {
switch ( $type ) {
case 'lesson':
$item = LP_Lesson::get_lesson( $item_id );
break;
case 'quiz':
$item = LP_Quiz::get_quiz( $item_id );
break;
}
}
}
}
wp_cache_set( $item_id, $item, 'lp-object-classes' );
if ( $course ) {
$item->set_course( $course );
}
}
return apply_filters( 'learn-press/get-course-item', $item, $item_type, $item_id );
}
/**
* Get template name of item.
*
* @return string
*/
public function get_template() {
$item_type = $this->get_item_type();
return apply_filters( 'learn-press/section-item-template', 'item-' . str_replace( 'lp_', '', $item_type ), $item_type );
}
/**
* To array.
*
* @since 3.0.0
*
* @return array
*/
public function to_array() {
$post = get_post( $this->get_id() );
return array(
'id' => $this->get_id(),
'type' => $this->get_item_type(),
'title' => $post->post_title,
'preview' => $this->is_preview()
);
}
/**
* Create nonce for checking actions on an item.
*
* @param string $action
* @param int $course_id
* @param int $user_id
*
* @return string
*/
public function create_nonce( $action = '', $course_id = 0, $user_id = 0 ) {
if ( ! $course_id ) {
$course_id = $this->get_course()->get_id();
}
if ( ! $user_id ) {
$user_id = get_current_user_id();
}
$action = $this->get_nonce_action( $action, $course_id, $user_id );
return wp_create_nonce( $action );
}
/**
* Verify nonce for an action on item.
*
* @param string $nonce
* @param string $action
* @param int $course_id
* @param int $user_id
*
* @return false|int
*/
public function verify_nonce( $nonce, $action = '', $course_id = 0, $user_id = 0 ) {
if ( ! $course_id ) {
$course_id = $this->get_course()->get_id();
}
if ( ! $user_id ) {
$user_id = get_current_user_id();
}
$action = $this->get_nonce_action( $action, $course_id, $user_id );
return wp_verify_nonce( $nonce, $action );
}
/**
* @param $action
* @param $course_id
* @param $user_id
*
* @return string
*/
public function get_nonce_action( $action, $course_id, $user_id ) {
return sprintf( '%s-item-%d-%d-%d', $action, $user_id, $course_id, $this->get_id() );
}
/**
* @param int $question_id
*
* @return mixed
*/
public function is_viewing_question( $question_id = 0 ) {
global $lp_quiz_question;
if ( $question_id ) {
$viewing = $lp_quiz_question && $lp_quiz_question->get_id() == $question_id;
} else {
$viewing = $lp_quiz_question ? $lp_quiz_question->get_id() : false;
}
return apply_filters( 'learn-press/quiz/is-viewing-question', $viewing, $question_id, $this->get_id() );
}
/**
* @param int $user_id
* @param int $course_id
*
* @return mixed
*/
public function get_status_classes( $user_id = 0, $course_id = 0 ) {
$status_classes = array();
if ( $course = learn_press_get_course( $course_id ) ) {
if ( $this->is_preview() ) {
$status_classes[] = 'item-preview';
} elseif ( $course->is_free() && ! $course->is_required_enroll() ) {
$status_classes[] = 'item-free';
}
}
if ( $user = learn_press_get_user( $user_id, ! $user_id ) ) {
$item_status = $user->get_item_status( $this->get_id(), $course_id );
$item_grade = $user->get_item_grade( $this->get_id(), $course_id );
if ( $item_status ) {
$status_classes[] = 'course-item-status';
$status_classes[] = 'item-' . $item_status;
}
switch ( $item_status ) {
case 'started':
break;
case 'completed':
$status_classes[] = $item_grade;
}
}
return apply_filters( 'learn-press/item-status-classes', $status_classes, $this->get_id(), $course_id, $user_id );
}
/**
* Get duration of quiz
*
* @return LP_Duration
*/
public function get_duration() {
$duration = $this->get_data( 'duration' );
if ( false === $duration || '' === $duration ) {
if ( $duration = get_post_meta( $this->get_id(), '_lp_duration', true ) ) {
$duration = new LP_Duration( $duration );
} else {
$duration = new LP_Duration( 0 );
}
$this->_set_data( 'duration', $duration );
}
return apply_filters( 'learn-press/course-item-duration', $duration, $this->get_id() );
}
/**
* @param int $course_id
* @param int $user_id
*
* @return bool
*/
public function is_blocked( $course_id = 0, $user_id = 0 ) {
if ( ! $user_id ) {
$user_id = get_current_user_id();
}
if ( ! $course_id ) {
$course_id = get_the_ID();
}
$course_author = learn_press_get_course_user( $course_id );
if ( $course_author ) {
$author_id = $course_author->get_id();
if ( $author_id == $user_id ) {
return false;
}
}
$key = 'course-item-' . $user_id . '-' . $course_id;
if ( false === ( $blocked_items = wp_cache_get( $key, 'blocked-items' ) ) ) {
$blocked_items = $this->_parse_item_block_status( $course_id, $user_id, $key );
}
$is_blocked = isset( $blocked_items[ $this->get_id() ] ) ? $blocked_items[ $this->get_id() ] : false;
if ( false === $is_blocked ) {
if ( $course_id ) {
$course = learn_press_get_course( $course_id );
} else {
$course = $this->get_course();
$course_id = $course ? $course->get_id() : 0;
}
if ( ! $user_id ) {
$user_id = get_current_user_id();
}
$user = learn_press_get_user( $user_id );
if ( ! $course ) {
$blocked = 'yes';
} else if ( ! $course->is_required_enroll() || $this->is_preview() ) {
$blocked = 'no';
} else {
if ( $user ) {
$blocked = $this->_item_is_blocked( $user, $course, $user->get_course_data( $course_id ) );
} else {
$blocked = 'yes';
}
}
if ( ! is_array( $blocked_items ) ) {
$blocked_items = array();
}
$blocked_items[ $this->get_id() ] = $blocked;
wp_cache_set( $key, $blocked_items, 'blocked-items' );
$is_blocked = $blocked;
//return apply_filters( 'learn-press/course-item/is-blocked', $blocked === 'yes' ? true : false, $this->get_id(), $course_id, $user_id );
}
return apply_filters( 'learn-press/course-item/is-blocked', $is_blocked === 'yes' ? true : false, $this->get_id(), $course_id, $user_id );
}
protected function _parse_item_block_status( $course_id, $user_id, $cache_key ) {
if ( ! $course = learn_press_get_course( $course_id ) ) {
return false;
}
if ( ! $course_items = $course->get_items() ) {
return false;
}
$user = learn_press_get_user( $user_id );
$course_item_data = $user->get_course_data( $course_id );
if ( ! $course->is_required_enroll() ) {
$blocked_items = array_fill_keys( $course_items, 'no' );
} elseif ( ! $user || $user->is_guest() ) {
$blocked_items = array_fill_keys( $course_items, 'yes' );
} else {
$blocked = $this->_item_is_blocked( $user, $course, $course_item_data );
$blocked_items = array_fill_keys( $course_items, $blocked );
}
$block_item_types = learn_press_get_block_course_item_types();
foreach ( $course_items as $course_item ) {
if ( $item = $course->get_item( $course_item ) ) {
if ( $item->is_preview() /*|| get_post_meta( $item->get_id(), '_lp_preview', true ) */) {
$blocked_items[ $course_item ] = 'no';
} elseif ( ! $block_item_types || is_array( $block_item_types ) && ! in_array( $item->get_post_type(), $block_item_types ) ) {
$blocked_items[ $course_item ] = 'no';
}
}
}
$blocked_items = apply_filters( 'learn-press/course-item/parse-block-statuses', $blocked_items, $course_id, $user_id );
wp_cache_set( $cache_key, $blocked_items, 'blocked-items' );
return $blocked_items;
}
/**
* @param LP_User $user
* @param LP_Course $course
* @param LP_User_Item_Course $course_item_data
*
* @return string
*/
protected function _item_is_blocked( $user, $course, $course_item_data ) {
if ( $is_admin = in_array( 'administrator', $user->get_roles() ) ) {
$blocked = 'no';
} else if ( $user->has_course_status( $course->get_id(), array( 'enrolled', 'finished' ) ) ) {
$blocked = 'no';
if ( $course->is_block_item_content() && $course_item_data->get_finishing_type() !== 'click'/*$course_item_data->is_exceeded() < 0*/ ) {
$blocked = 'yes';
}
} else {
$blocked = 'yes';
}
return $blocked;
}
public function offsetExists( $offset ) {
}
public function offsetGet( $offset ) {
}
public function offsetSet( $offset, $value ) {
}
public function offsetUnset( $offset ) {
}
}
}
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