Woocommerce: hide category in shop - php

Question

I have a category with products not visible to everyone.
I already have a script in place, that removes this category from the sidebar widget, when no items in the category are visible to the user.
I created a function that puts the exclude term_id in a global variable.
Now I need something that excludes them from view in the shop.
$GLOBALS['cat_exclude'] = NULL;
function getExcludedCats( ) {
//if( ! is_admin() && (is_product_category() || is_shop())){
$current_tax = get_query_var( 'product_cat' );
$term =get_term_by( 'slug', $current_tax, 'product_cat');
$parentid = $term->term_id;
$args = array(
'hide_empty' => true,
'parent' => $parentid
);
$product_categories = get_terms( 'product_cat', $args );
$exclude = array();
foreach ( $product_categories as $category ) {
$posts = get_posts( array( 'post_type' => 'product', 'posts_per_page' => -1, 'product_cat' => $category->slug, 'fields' => 'ids' ) );
$show_category = false;
foreach ( $posts as $post ) {
$product = new WC_Product( $post );
$visible_product = $product->is_visible();
if ( true === $visible_product ) {
$show_category = true;
break;
}
}
if ( false === $show_category ) {
$exclude[] = $category->term_id;
}
}
if ( ! empty( $exclude ) ) {
$GLOBALS['cat_exclude'] = implode( ',', $exclude );
}
//}
}
add_action('wp_head', 'getExcludedCats');
However, in the shop view itself, the category is still visible. How can I remove it there, when no items in this category are visible to the user.
I have tried:
https://gist.github.com/rynaldos/a9d357b1e3791afd9bea48833ff95994
But it removes the category ALWAYS, in both widget and shop.
Products are being displayed by group membership of the customer:
https://wordpress.org/plugins/groups/

Answer 1

I think I managed to create a script that made this possible:
https://gist.github.com/DarkAllMan/cffb114eb97c6f26882e54793e023587
<?php
/**
Plugin Name: WooCommerce - Hide categories where no products are visible to user
Plugin URI: https://www.randall.nl
Description: Excludes categories with no visible products from the WooCommerce category overview in shop
Version: 0.1
Author: Randall Kam
Author URI: https://www.randall.nl
*/
if ( ! defined( 'ABSPATH' ) ) {
exit; // Exit if accessed directly
}
if ( !class_exists( 'ExcludeCats' ) ) :
class ExcludeCats {
public $version = '0.1',
$exclude = array();
protected static $_instance = null;
/**
* Main Plugin Instance
*
* Ensures only one instance of plugin is loaded or can be loaded.
*/
public static function instance() {
if ( is_null( self::$_instance ) ) {
self::$_instance = new self();
}
return self::$_instance;
}
/**
* Constructor
*/
public function __construct() {
// CHECK CATEGORIES FOR VISIBLE PRODUCTS
add_action('wp_head', array( $this, 'get_excluded_cats' ), 10, 3 );
// ADD THE WIDGET SIDEBAR FILTER
add_filter( 'woocommerce_product_categories_widget_args', array( $this, 'kfg_exclude_categories_from_widget'), 10, 1 );
// ADD THE SHOP FILTER
add_filter( 'woocommerce_product_subcategories_args', array( $this, 'filter_woocommerce_product_subcategories_args'), 10, 1 );
}
// GET CATEGORIES WITH NO VISIBLE PRODUCTS AND PUT IN GLOBAL IF GLOBAL FALSE
public function get_excluded_cats( $terms, $taxonomies, $args ) {
$current_tax = get_query_var( 'product_cat' );
$term =get_term_by( 'slug', $current_tax, 'product_cat');
$term_id = $term->term_id;
$args = array(
'parent' => $term_id,
'hide_empty' => false,
'hierarchical' => false,
);
$product_categories = get_terms( 'product_cat', $args );
// if a product category and on the shop page
//if ( in_array( 'product_cat', $taxonomies ) && ! is_admin() && is_shop() ) {
if ( ! is_admin() && is_shop() ) {
foreach ( $product_categories as $key => $term ) {
unset($this->exclude);
if($term->taxonomy=='product_cat'){
$posts = get_posts( array( 'post_type' => 'product', 'posts_per_page' => -1, 'product_cat' => $term->slug, 'fields' => 'ids' ) );
$show_category = false;
foreach ( $posts as $post ) {
$product = new WC_Product( $post );
$visible_product = $product->is_visible();
if ( true === $visible_product ) {
$show_category = true;
break;
}
}
}
if ( false === $show_category ) {
$this->exclude[] = $term->term_id;
}
}
}
}
public function get_parent_cats ($cat_termid, $found = array()) {
array_push ($found, $cat_termid);
$term =get_term_by( 'term_id', $cat_termid, 'product_cat');
if($term->parent > 0){
return get_parent_cats($term->parent, $found);
}
return $found;
}
// ADD FILTERS FOR CATEGORIES AND EXCLUDE EMPTY
public function filter_woocommerce_product_subcategories_args( $temp_args = array() ) {
$current_tax = get_query_var( 'product_cat' );
$term =get_term_by( 'slug', $current_tax, 'product_cat');
$term_id = $term->term_id;
$temp_args = array(
'parent' => $term_id,
'menu_order' => 'ASC',
'hide_empty' => 1,
'hierarchical' => 1,
'taxonomy' => 'product_cat',
'pad_counts' => 1,
'include' => NULl,
'exclude' => $this->exclude,
);
return $temp_args;
}
public function kfg_exclude_categories_from_widget( $category_list_args ) {
$current_tax = get_query_var( 'product_cat' );
$term = get_term_by( 'slug', $current_tax, 'product_cat');
$term_id = $term->term_id;
$parents = $this->get_parent_cats($term_id);
$args = array(
'hide_empty' => false,
'hierarchical' => true,
);
$product_categories = get_terms( 'product_cat', $args );
$wexclude = array();
foreach ( $product_categories as $category ) {
$posts = get_posts( array( 'post_type' => 'product', 'posts_per_page' => -1, 'product_cat' => $category->slug, 'fields' => 'ids' ) );
$show_category = false;
foreach ( $posts as $post ) {
$product = new wC_Product( $post );
$visible_product = $product->is_visible();
if ( true === $visible_product ) {
$show_category = true;
break;
}
}
if ( false === $show_category || ( $category->parent > 0 && !in_array($category->parent,$parents) ) ) {
$wexclude[] = $category->term_id;
}
}
if ( ! empty( $wexclude ) ) {
$category_list_args['exclude'] = implode( ',', $wexclude );
unset( $category_list_args['include'] );
}
return $category_list_args;
}
} // class ExcludeCats
endif; // class_exists
/**
* Returns the main instance of the plugin class to prevent the need to use globals.
*
* #since 2.0
* #return WooCommerce_PostcodeAPInu
*/
function ExcludeCats() {
return ExcludeCats::instance();
}
ExcludeCats(); // load plugin