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Mini Shell
Mini Shell
<?php
/**
* Class LP_Query
*/
defined( 'ABSPATH' ) || exit;
class LP_Query {
/**
* @var array
*/
public $query_vars = array();
/**
* LP_Query constructor.
*/
public function __construct() {
add_action( 'init', array( $this, 'add_rewrite_tags' ), 1000, 0 );
add_action( 'init', array( $this, 'add_rewrite_rules' ), 1000, 0 );
add_action( 'parse_query', array( $this, 'parse_request' ), 1000, 1 );
/**
* Add searching post by taxonomies
*/
add_action( 'pre_get_posts', array( $this, 'query_taxonomy' ) );
}
/**
* Parses request params and controls page
*
* @param WP_Query $q
*
* @return mixed
*/
public function parse_request( $q ) {
if ( did_action( 'learn_press_parse_query' ) ) {
return $q;
}
do_action_ref_array( 'learn_press_parse_query', array( &$this ) );
return $q;
}
/**
* This function is cloned from wp core function
*
* @see WP()->parse_request()
*
* @return string
*/
public function get_request() {
global $wp_rewrite;
$pathinfo = isset( $_SERVER['PATH_INFO'] ) ? $_SERVER['PATH_INFO'] : '';
list( $pathinfo ) = explode( '?', $pathinfo );
$pathinfo = str_replace( "%", "%25", $pathinfo );
list( $req_uri ) = explode( '?', $_SERVER['REQUEST_URI'] );
$self = $_SERVER['PHP_SELF'];
$home_path = trim( parse_url( home_url(), PHP_URL_PATH ), '/' );
$home_path_regex = sprintf( '|^%s|i', preg_quote( $home_path, '|' ) );
// Trim path info from the end and the leading home path from the
// front. For path info requests, this leaves us with the requesting
// filename, if any. For 404 requests, this leaves us with the
// requested permalink.
$req_uri = str_replace( $pathinfo, '', $req_uri );
$req_uri = trim( $req_uri, '/' );
$req_uri = preg_replace( $home_path_regex, '', $req_uri );
$req_uri = trim( $req_uri, '/' );
$pathinfo = trim( $pathinfo, '/' );
$pathinfo = preg_replace( $home_path_regex, '', $pathinfo );
$pathinfo = trim( $pathinfo, '/' );
$self = trim( $self, '/' );
$self = preg_replace( $home_path_regex, '', $self );
$self = trim( $self, '/' );
// The requested permalink is in $pathinfo for path info requests and
// $req_uri for other requests.
if ( ! empty( $pathinfo ) && ! preg_match( '|^.*' . $wp_rewrite->index . '$|', $pathinfo ) ) {
$request = $pathinfo;
} else {
// If the request uri is the index, blank it out so that we don't try to match it against a rule.
if ( $req_uri == $wp_rewrite->index ) {
$req_uri = '';
}
$request = $req_uri;
}
return $request;
}
/**
* Add custom rewrite tags
*/
function add_rewrite_tags() {
add_rewrite_tag( '%course-item%', '([^&]+)' );
add_rewrite_tag( '%item-type%', '([^&]+)' );
//add_rewrite_tag( '%quiz%', '([^&]+)' );
add_rewrite_tag( '%question%', '([^&]+)' );
add_rewrite_tag( '%user%', '([^/]*)' );
add_rewrite_tag( '%view%', '([^/]*)' );
add_rewrite_tag( '%view_id%', '(.*)' );
add_rewrite_tag( '%section%', '(.*)' );
add_rewrite_tag( '%content-item-only%', '(.*)' );
do_action( 'learn_press_add_rewrite_tags' );
}
/**
* Add more custom rewrite rules
*/
function add_rewrite_rules() {
// lesson
$course_type = LP_COURSE_CPT;
$post_types = get_post_types( '', 'objects' );
$slug = preg_replace( '!^/!', '', $post_types[ $course_type ]->rewrite['slug'] );
$has_category = false;
if ( preg_match( '!(%?course_category%?)!', $slug ) ) {
$slug = preg_replace( '!(%?course_category%?)!', '(.+?)/([^/]+)', $slug );
$has_category = true;
}
$custom_slug_lesson = sanitize_title_with_dashes( LP()->settings->get( 'lesson_slug' ) );
$custom_slug_quiz = sanitize_title_with_dashes( LP()->settings->get( 'quiz_slug' ) );
/**
* Use urldecode to convert an encoded string to normal.
* This fixed the issue with custom slug of lesson/quiz in some languages
* Eg: урока
*/
if ( ! empty( $custom_slug_lesson ) ) {
$post_types['lp_lesson']->rewrite['slug'] = urldecode( $custom_slug_lesson );
}
if ( ! empty( $custom_slug_quiz ) ) {
$post_types['lp_quiz']->rewrite['slug'] = urldecode( $custom_slug_quiz );
}
$rules = array();
if ( $has_category ) {
$rules[] = array(
'^' . $slug . '(?:/' . $post_types['lp_lesson']->rewrite['slug'] . '/([^/]+))/?$',
'index.php?' . $course_type . '=$matches[2]&course_category=$matches[1]&course-item=$matches[3]&item-type=lp_lesson',
'top'
);
$rules[] = array(
'^' . $slug . '(?:/' . $post_types['lp_quiz']->rewrite['slug'] . '/([^/]+)/?([^/]+)?)/?$',
'index.php?' . $course_type . '=$matches[2]&course_category=$matches[1]&course-item=$matches[3]&question=$matches[4]&item-type=lp_quiz',
'top'
);
} else {
$rules[] = array(
'^' . $slug . '/([^/]+)(?:/' . $post_types['lp_lesson']->rewrite['slug'] . '/([^/]+))/?$',
'index.php?' . $course_type . '=$matches[1]&course-item=$matches[2]&item-type=lp_lesson',
'top'
);
$rules[] = array(
'^' . $slug . '/([^/]+)(?:/' . $post_types['lp_quiz']->rewrite['slug'] . '/([^/]+)/?([^/]+)?)/?$',
'index.php?' . $course_type . '=$matches[1]&course-item=$matches[2]&question=$matches[3]&item-type=lp_quiz',
'top'
);
}
// Profile
if ( $profile_id = learn_press_get_page_id( 'profile' ) ) {
$rules[] = array(
'^' . get_post_field( 'post_name', $profile_id ) . '/([^/]*)/?$',
'index.php?page_id=' . $profile_id . '&user=$matches[1]',
'top'
);
$profile = learn_press_get_profile();
if ( $tabs = $profile->get_tabs()->get() ) {
foreach ( $tabs as $slug => $args ) {
$tab_slug = isset( $args['slug'] ) ? $args['slug'] : $slug;
$rules[] = array(
'^' . get_post_field( 'post_name', $profile_id ) . '/([^/]*)/?(' . $tab_slug . ')/?([0-9]*)/?$',
'index.php?page_id=' . $profile_id . '&user=$matches[1]&view=$matches[2]&view_id=$matches[3]',
'top'
);
if ( ! empty( $args['sections'] ) ) {
foreach ( $args['sections'] as $section_slug => $section ) {
$section_slug = isset( $section['slug'] ) ? $section['slug'] : $section_slug;
$rules[] = array(
'^' . get_post_field( 'post_name', $profile_id ) . '/([^/]*)/?(' . $tab_slug . ')/(' . $section_slug . ')/?([0-9]*)?$',
'index.php?page_id=' . $profile_id . '&user=$matches[1]&view=$matches[2]§ion=$matches[3]&view_id=$matches[4]',
'top'
);
}
}
}
}
}
// Archive course
if ( $course_page_id = learn_press_get_page_id( 'courses' ) ) {
$rules[] = array(
'^' . get_post_field( 'post_name', $course_page_id ) . '/page/([0-9]{1,})/?$',
'index.php?pagename=' . get_post_field( 'post_name', $course_page_id ) . '&page=$matches[1]',
'top'
);
}
global $wp_rewrite;
/**
* Polylang compatibility
*/
if ( function_exists( 'PLL' ) ) {
$pll = PLL();
$pll_languages = $pll->model->get_languages_list( array( 'fields' => 'slug' ) );
if ( $pll->options['hide_default'] ) {
if ( isset( $pll->options['default_lang'] ) ) {
$pll_languages = array_diff( $pll_languages, array( $pll->options['default_lang'] ) );
}
}
if ( ! empty( $pll_languages ) ) {
$pll_languages = $wp_rewrite->root . ( $pll->options['rewrite'] ? '' : 'language/' ) . '(' . implode( '|', $pll_languages ) . ')/';
}else{
$pll_languages = '';
}
}
$new_rules = array();
foreach ( $rules as $k => $rule ) {
$new_rules[] = $rule;
call_user_func_array( 'add_rewrite_rule', $rule );
/**
* Modify rewrite rule
*/
if ( isset( $pll_languages ) ) {
$rule[0] = $pll_languages . str_replace( $wp_rewrite->root, '', ltrim( $rule[0], '^' ) );
$rule[1] = str_replace(
array( '[8]', '[7]', '[6]', '[5]', '[4]', '[3]', '[2]', '[1]', '?' ),
array( '[9]', '[8]', '[7]', '[6]', '[5]', '[4]', '[3]', '[2]', '?lang=$matches[1]&' ),
$rule[1]
);
$new_rules[] = $rule;
call_user_func_array( 'add_rewrite_rule', $rule );
}
}
$new_rules = md5( serialize( $new_rules ) );
$old_rules = get_transient( 'lp_rewrite_rules_hash' );
if ( $old_rules !== $new_rules ) {
set_transient( 'lp_rewrite_rules_hash', $new_rules, DAY_IN_SECONDS );
flush_rewrite_rules();
}
do_action( 'learn_press_add_rewrite_rules' );
}
/**
* Get current course user accessing
*
* @param string $return
*
* @return bool|false|int|LP_Course|mixed
*/
public function get_course( $return = 'id' ) {
$course = false;
if ( learn_press_is_course() ) {
$course = get_the_ID();
}
if ( $course && $return == 'object' ) {
$course = learn_press_get_course( $course );
}
return $course;
}
public function get_course_item( $return = 'id' ) {
$course = $this->get_course( 'object' );
$user = learn_press_get_current_user();
$item = isset( $item ) ? $item : LP()->global['course-item'];
if ( $item && $return == 'object' ) {
$item = LP_Course::get_item( $item );
}
return $item;
}
/**
* @param WP_Query $q
*/
public function query_taxonomy( $q ) {
// We only want to affect the main query
if ( ! $q->is_main_query() ) {
return;
}
if ( is_search() ) {
add_filter( 'posts_where', array( $this, 'add_tax_search' ) );
add_filter( 'posts_join', array( $this, 'join_term' ) );
add_filter( 'posts_groupby', array( $this, 'tax_groupby' ) );
}
add_filter( 'posts_where', array( $this, 'exclude_preview_course' ) );
}
/**
* @param string $join
*
* @return string
*/
public function join_term( $join ) {
global $wp_query, $wpdb;
if ( ! empty( $wp_query->query_vars['s'] ) && ! is_admin() ) {
if ( ! preg_match( '/' . $wpdb->term_relationships . '/', $join ) ) {
$join .= "LEFT JOIN $wpdb->term_relationships ON $wpdb->posts.ID = $wpdb->term_relationships.object_id ";
}
$join .= "LEFT JOIN $wpdb->term_taxonomy ON $wpdb->term_relationships.term_taxonomy_id = $wpdb->term_taxonomy.term_taxonomy_id ";
$join .= "LEFT JOIN $wpdb->terms ON $wpdb->term_taxonomy.term_id = $wpdb->terms.term_id ";
}
return $join;
}
/**
* @param string $where
*
* @return string
*/
public function add_tax_search( $where ) {
global $wp_query, $wpdb;
if ( ! empty( $wp_query->query_vars['s'] ) && ! is_admin() ) {
$escaped_s = esc_sql( $wp_query->query_vars['s'] );
$where .= "OR $wpdb->terms.name LIKE '%{$escaped_s}%'";
}
return $where;
}
/**
* Exclude 'Preview course' from main query.
*
* @since 3.0.0
*
* @param string $where
*
* @return string
*/
public function exclude_preview_course( $where ) {
global $wpdb;
if ( ! is_admin() && learn_press_is_courses() ) {
if ( $ids = LP_Preview_Course::get_preview_courses() ) {
$format = array_fill( 0, sizeof( $ids ), '%d' );
$where .= $wpdb->prepare( " AND {$wpdb->posts}.ID NOT IN(" . join( ',', $format ) . ") ", $ids );
}
}
return $where;
}
/**
* @param string $groupby
*
* @return string
*/
public function tax_groupby( $groupby ) {
global $wpdb;
$groupby = "{$wpdb->posts}.ID";
$this->remove_query_tax();
return $groupby;
}
/**
* Remove filter query
*/
public function remove_query_tax() {
remove_filter( 'posts_where', 'learn_press_add_tax_search' );
remove_filter( 'posts_join', 'learn_press_join_term' );
remove_filter( 'posts_groupby', 'learn_press_tax_groupby' );
}
}
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