Restrict WooCommerce to allowing order from specific categories or products

Hi there,

> Is there any plugin or code to help with that?

Yes, there is. You can look for WooCommerce Catalogue Visibility or alternatively try this custom code: https://www.damiencarbery.com/2020/03/remove-add-to-cart-button-conditionally/

Kind regards,

Thanks @conschneider. Problem solved, found answer in stackoverflow.

function sv_wc_prevent_checkout_for_category() {

    // set the slug of the category for which we disallow checkout
    $category = 'sibling';

    // get the product category
    $product_cat = get_term_by( 'slug', $category, 'product_cat' );

    // sanity check to prevent fatals if the term doesn't exist
    if ( is_wp_error( $product_cat ) ) {
        return;
    }

    $category_name = '<a href="' . get_term_link( $category, 'product_cat' ) . '">' . $product_cat->name . '</a>';

    // check if this category is the only thing in the cart
    if ( sv_wc_is_category_alone_in_cart( $category ) ) {

        // render a notice to explain why checkout is blocked
        wc_add_notice( sprintf( 'Hi there! Looks like your cart only contains products from the %1$s category &ndash; you must purchase a product from another category to check out.', $category_name ), 'error' );
    }
}
add_action( 'woocommerce_check_cart_items', 'sv_wc_prevent_checkout_for_category' );

/**
 * Checks if a cart contains exclusively products in a given category
 * 
 * @param string $category the slug of the product category
 * @return bool - true if the cart only contains the given category
 */
function sv_wc_is_category_alone_in_cart( $category ) {

    // check each cart item for our category
    foreach ( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {

        // if a product is not in our category, bail out since we know the category is not alone
        if ( ! has_term( $category, 'product_cat', $cart_item['data']->id ) ) {
            return false;
        }
    }

    // if we're here, all items in the cart are in our category
    return true;
}

LGTM @rifatspir
Thanks for sharing!

All the best.

Use this code

    /*
    Plugin Name: Remove 'Add to cart' conditionally
    Plugin URI:  https://www.damiencarbery.com/2020/03/remove-add-to-cart-conditionally/
    Description: Conditionally remove the 'Add to cart' button in WooCommerce.
    Author: Damien Carbery
    Version: 0.2
    */
    
    
    class IsPurchasableConditionalFiltering {
    	// A reference to an instance of this class.
    	private static $instance;
    	// Store whether 'Add to cart' button should be displayed.
    	private $purchasable;
    
    
    	// Returns an instance of this class. 
    	public static function get_instance() {
    		if ( null == self::$instance ) {
    			self::$instance = new IsPurchasableConditionalFiltering;
    		}
    		return self::$instance;
    	}
    
    
    	// Initialize the plugin variables.
    	public function __construct() {
    		$this->purchasable = array();
    
    		$this->init();
    	}
    
    
    	// Set up WordPress specfic actions.
    	public function init() {
    		add_filter( 'woocommerce_is_purchasable', array( $this, 'is_purchasable_conditionals' ), 10, 2 );
    		add_filter( 'woocommerce_variation_is_purchasable', array( $this, 'variation_is_purchasable_conditionals' ), 10, 2 );
    		
    		// Remove variations dropdown and 'Add to cart' button for variable products.
    		add_action( 'woocommerce_before_single_product_summary', array( $this, 'before_single_product_summary' ) );
    	}
    	
    	
    	public function is_purchasable_conditionals( $whether_purchasable, $product ) {
    		// Return cached result.
    		if ( array_key_exists( $product->get_id(), $this->purchasable ) ) {
    			return $this->purchasable[ $product->get_id() ];
    		}
    		
    		// Only do our conditional checks if WooCommerce deems the item to be purchasable.
    		if ( $whether_purchasable ) {
    			$result = true;  // Default to allowing purchase.
    			
    			// Check our specific conditions - some examples.
    			/* // Product over a certain price.
    			if ( $product->get_price() > 2 ) {
    				$result = false;
    			}*/
    			
    			// Check if product in a certain categores.
    			if ( has_term( array( 'hoodies', 'accessories' ), 'product_cat', $product->get_id() ) ) {
    				$result = false;
    			}
    			
    			
    			$this->purchasable[ $product->get_id() ] = $result;
    		}
    		else {
    			// Store that this item cannot be purchased.
    			$this->purchasable[ $product->get_id() ] = false;
    		}
    
    		return $this->purchasable[ $product->get_id() ];
    	}
    	
    	
    	public function variation_is_purchasable_conditionals( $whether_purchasable, $product ) {
    		return $whether_purchasable;
    	}
    	
    	
    	public function before_single_product_summary() {
    		$product_id = get_the_ID();
    		if ( array_key_exists( $product_id, $this->purchasable ) && !$this->purchasable[ $product_id ] ) {
    			remove_action( 'woocommerce_single_variation', 'woocommerce_single_variation_add_to_cart_button', 20 );
    			remove_action( 'woocommerce_variable_add_to_cart', 'woocommerce_variable_add_to_cart', 30 ); 
    		}
    	}
    }
    $IsPurchasableConditionalFiltering = new IsPurchasableConditionalFiltering;

Reference : https://www.damiencarbery.com/2020/03/remove-add-to-cart-button-conditionally/

• This reply was modified 4 years, 2 months ago by ajanthalakmal.