File: /home/mobilech/alliancelaptoptraining.com.np/wp-content/plugins/tutor/classes/Course_Filter.php
<?php
/**
* Manage Course Filter
*
* @package Tutor
* @author Themeum <support@themeum.com>
* @link https://themeum.com
* @since 1.0.0
*/
namespace TUTOR;
use Tutor\Models\CourseModel;
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* Course filter class
*
* @since 1.0.0
*/
class Course_Filter {
/**
* Course Category
*
* @var string
*/
private $category = 'course-category';
/**
* Course Tag
*
* @var string
*/
private $tag = 'course-tag';
/**
* Course term id
*
* @var null|integer
*/
private $current_term_id = null;
/**
* Constructor
*
* @since 1.0.0
*
* @param boolean $register_hook register hook or not.
*
* @return void|null
*/
public function __construct( $register_hook = true ) {
if ( ! $register_hook ) {
return;
}
add_action( 'wp_ajax_tutor_course_filter_ajax', array( $this, 'load_listing' ), 10, 0 );
add_action( 'wp_ajax_nopriv_tutor_course_filter_ajax', array( $this, 'load_listing' ), 10, 0 );
add_filter( 'term_link', array( $this, 'filter_course_category_term_link' ), 10, 3 );
}
/**
* Load course listing
*
* @since 1.0.0
*
* @param mixed $filters filters.
* @param boolean $return_filter return filtered data or not.
* @return mixed
*/
public function load_listing( $filters = null, $return_filter = false ) {
! $return_filter ? tutils()->checking_nonce() : 0;
$sanitized_post = tutor_sanitize_data( null == $filters ? $_POST : $filters ); //phpcs:ignore WordPress.Security.NonceVerification.Missing
! is_array( $sanitized_post ) ? $sanitized_post = array() : 0;
$default_per_page = tutils()->get_option( 'courses_per_page', 12 );
$courses_per_page = (int) tutils()->array_get( 'course_per_page', $sanitized_post, $default_per_page );
// Pagination arg.
$current_page = (int) Input::sanitize_request_data( 'current_page', 1 );
$paged = max( 1, $current_page );
$sanitized_post['current_page'] = $paged;
// Order arg.
$order_by = 'post_date';
$order = 'DESC';
if ( isset( $sanitized_post['course_order'] ) ) {
switch ( $sanitized_post['course_order'] ) {
case 'newest_first':
$order_by = 'post_date';
$order = 'DESC';
break;
case 'oldest_first':
$order_by = 'post_date';
$order = 'ASC';
break;
case 'course_title_az':
$order_by = 'post_title';
$order = 'ASC';
break;
case 'course_title_za':
$order_by = 'post_title';
$order = 'DESC';
break;
}
}
$args = array(
'post_status' => 'publish',
'post_type' => tutor()->course_post_type,
'posts_per_page' => $courses_per_page,
'paged' => $paged,
'orderby' => $order_by,
'order' => $order,
'tax_query' => array(
'relation' => 'AND',
),
);
$post_ids_array = tutils()->array_get( 'tutor-course-filter-post-ids', $sanitized_post, array() );
$post_ids_array = array_map( 'intval', $post_ids_array );
if ( count( $post_ids_array ) ) {
$args['post__in'] = $post_ids_array;
}
$exclude_ids_array = tutils()->array_get( 'tutor-course-filter-exclude-ids', $sanitized_post, array() );
$exclude_ids_array = array_map( 'intval', $exclude_ids_array );
if ( count( $exclude_ids_array ) ) {
$args['post__not_in'] = $exclude_ids_array;
}
// Prepare taxonomy.
foreach ( array( 'category', 'tag' ) as $taxonomy ) {
$term_array = tutils()->array_get( 'tutor-course-filter-' . $taxonomy, $sanitized_post, array() );
! is_array( $term_array ) ? $term_array = array( $term_array ) : 0;
$term_array = array_filter( $term_array, fn ( $term_id ) => is_numeric( $term_id ) );
if ( count( $term_array ) > 0 ) {
$tax_query = array(
'taxonomy' => $this->$taxonomy,
'field' => 'term_id',
'terms' => $term_array,
'operator' => 'IN',
);
array_push( $args['tax_query'], $tax_query );
}
}
// Prepare level and price type.
$is_membership = get_tutor_option( 'monetize_by' ) == 'pmpro' && tutils()->has_pmpro();
$level_price = array();
foreach ( array( 'level', 'price' ) as $type ) {
if ( $is_membership && 'price' === $type ) {
continue;
}
$type_array = tutils()->array_get( 'tutor-course-filter-' . $type, $sanitized_post, array() );
$type_array = array_map( 'sanitize_text_field', ( is_array( $type_array ) ? $type_array : array( $type_array ) ) );
if ( 'level' === $type && in_array( 'all_levels', $type_array, true ) ) {
continue;
}
if ( in_array( Course::PRICE_TYPE_PAID, $type_array, true ) ) {
$type_array = apply_filters( 'tutor_course_filter_price_type_paid', $type_array );
}
if ( count( $type_array ) > 0 ) {
$level_price[] = array(
'key' => 'level' === $type ? '_tutor_course_level' : '_tutor_course_price_type',
'value' => $type_array,
'compare' => 'IN',
);
}
}
count( $level_price ) ? $args['meta_query'] = $level_price : 0;
$search_key = sanitize_text_field( tutils()->array_get( 'keyword', $sanitized_post, null ) );
$search_key ? $args['s'] = $search_key : 0;
if ( isset( $sanitized_post['tutor_course_filter'] ) ) {
switch ( $sanitized_post['tutor_course_filter'] ) {
case 'newest_first':
$args['orderby'] = 'post_date';
$args['order'] = 'desc';
break;
case 'oldest_first':
$args['orderby'] = 'post_date';
$args['order'] = 'asc';
break;
case 'course_title_az':
$args['orderby'] = 'post_title';
$args['order'] = 'asc';
break;
case 'course_title_za':
$args['orderby'] = 'post_title';
$args['order'] = 'desc';
break;
}
}
// Return filters.
$filters = apply_filters( 'tutor_course_filter_args', $args );
if ( $return_filter ) {
return $filters;
}
ob_start();
query_posts( $filters );
tutor_load_template( 'archive-course-init', array_merge( array( 'loop_content_only' => true ), $sanitized_post ) );
wp_send_json_success( array( 'html' => ob_get_clean() ) );
exit;
}
/**
* Get current term ID
*
* @since 1.0.0
* @return integer
*/
private function get_current_term_id() {
if ( null === $this->current_term_id ) {
$queried = get_queried_object();
$this->current_term_id = ( is_object( $queried ) && property_exists( $queried, 'term_id' ) ) ? $queried->term_id : false;
}
return $this->current_term_id;
}
/**
* Sort terms hierarchically
*
* @since 1.0.0
*
* @param array $terms term list.
* @param integer $parent_id parent ID.
* @return array
*/
private function sort_terms_hierarchically( $terms, $parent_id = 0 ) {
$term_array = array();
foreach ( $terms as $term ) {
if ( $term->parent == $parent_id ) {
$term->children = $this->sort_terms_hierarchically( $terms, $term->term_id );
$term_array[] = $term;
}
}
return $term_array;
}
/**
* Render terms hierarchically
*
* @since 1.0.0
*
* @param array $terms term list.
* @param string $taxonomy taxonomy name.
*
* @return void
*/
private function render_terms_hierarchically( $terms, $taxonomy ) {
$term_id = $this->get_current_term_id();
foreach ( $terms as $term ) {
?>
<li class="tutor-list-item">
<label>
<input type="checkbox" class="tutor-form-check-input" name="tutor-course-filter-<?php echo esc_attr( $taxonomy ); ?>" value="<?php echo esc_attr( $term->term_id ); ?>" <?php echo esc_attr( $term->term_id == $term_id ? 'checked="checked"' : '' ); ?>/>
<?php echo esc_html( $term->name ); ?>
</label>
</li>
<?php isset( $term->children ) ? $this->render_terms_hierarchically( $term->children, $taxonomy ) : 0; ?>
<?php
}
}
/**
* Render terms
*
* @since 1.0.0
*
* @param string $taxonomy taxonomy name.
*
* @return void
*/
public function render_terms( $taxonomy ) {
$terms = get_terms(
array(
'taxonomy' => $this->$taxonomy,
'hide_empty' => true,
)
);
$this->render_terms_hierarchically( $this->sort_terms_hierarchically( $terms ), $taxonomy );
}
/**
* Filter course-category term's permalink
*
* Add a query param so that course filter can work
*
* @param string $termlink default term link.
* @param \WP_Term $term term obj.
* @param string $taxonomy taxonomy.
*
* @return string customized term link
*/
public static function filter_course_category_term_link( string $termlink, \WP_Term $term, string $taxonomy ) {
if ( CourseModel::COURSE_CATEGORY === $taxonomy ) {
$termlink = add_query_arg( 'tutor-course-filter-category', $term->term_id, $termlink );
}
return $termlink;
}
}