Avoid add to cart for specific product categories if user is unlogged in Woocommerce

Question

In Woocommerce, I am trying to disable specific product categories to be added to the cart for users that aren\'t logged in. i\'m looking for a solution the last couple of d

Answer 1

The conditional tag is_product_category() only target product category archive pages. Instead you can use WordPress conditional function has_term().

There is 2 ways to avoid specific products being added to cart for no logged user…

1) Using Add to cart validation hook:

// Avoid add to cart conditionally
add_filter( 'woocommerce_add_to_cart_validation', 'avoid_add_to_cart_conditionally', 20, 3 );
function avoid_add_to_cart_conditionally( $passed, $product_id, $quantity) {
    // HERE your product categories (can be IDs, slugs or names terms)
    $terms = array( 'gekoelde-bier', 'bierkoerier');
    
    if( has_terms( $terms, 'product_cat', $product_id ) && ! is_user_logged_in() ){
        // Displaying a custom notice (optional)
        wc_add_notice( __('Only logged in users are allowed to purchase this item. Please register.'), 'error' );
        
        $passed = false;
    }
    
    return $passed;
}

Code goes in function.php file of your active child theme (or active theme). Tested and works.

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2) Using is_purchasable product property (It will remove add to cart button):

add_filter('woocommerce_is_purchasable','conditional_purchasable_products', 20, 2);
function conditional_purchasable_products( $is_purchasable, $product ) {
    // HERE your product categories (can be IDs, slugs or names terms)
    $terms = array( 'gekoelde-bier', 'bierkoerier');
    
    $product_id = $product->get_id(); // The product ID

    if( has_terms( $terms, 'product_cat', $product_id ) && ! is_user_logged_in() ){
        $is_purchasable = false;
    }

    return $is_purchasable;
}

Code goes in function.php file of your active child theme (or active theme). Tested and works.

---

Targeting the parent product category terms too.

You will use the following custom conditional function to replace has_term() Wordpress function:

// Custom conditional function that checks for parent product categories too
function has_product_categories( $categories, $product_id ) {
     // Initializing
    $parent_term_ids = $categories_ids = array();
    $taxonomy        = 'product_cat';

    // Convert categories term names and slugs to categories term ids
    foreach ( $categories as $category ){
        if( is_numeric( $category ) ) {
            $categories_ids[] = (int) $category;
        } elseif ( term_exists( sanitize_title( $category ), $taxonomy ) ) {
            $categories_ids[] = get_term_by( 'slug', sanitize_title( $category ), $taxonomy )->term_id;
        }
    }

    // Loop through the current product category terms to get only parent main category term
    foreach( get_the_terms( $product_id, $taxonomy ) as $term ){
        if( $term->parent > 0 ){
            $parent_term_ids[] = $term->parent; // Set the parent product category
            $parent_term_ids[] = $term->term_id; // (and the child)
        } else {
            $parent_term_ids[] = $term->term_id; // It is the Main category term and we set it.
        }
    }
    return array_intersect( $categories_ids, array_unique($parent_term_ids) ) ? true : false;
}

Then for both hooked functions, you will replace the following line :

if( has_terms( $terms, 'product_cat', $product_id ) && ! is_user_logged_in() ){
    

By this line:

if( has_product_categories( $terms, $product_id ) && ! is_user_logged_in() ){

Code goes in function.php file of your active child theme (or active theme). Tested and works.