Cheatsheet - WooCommerce Customization in functions.php

functions.php

//Add a stylesheet after default style.css
wp_enqueue_style( 'my-css',  get_template_directory_uri() . 'my-css.css', array('themename-style'));

//WooCommerce - Sort products by SKU
add_filter('woocommerce_get_catalog_ordering_args', 'custom_woocommerce_catalog_orderby');
function custom_woocommerce_catalog_orderby( $args ) {
    $args['meta_key'] = '_sku';
    $args['orderby'] = 'meta_value';
    $args['order'] = 'asc'; 
    return $args;
}

//WooCommerce - Remove Variation Price from Single Product Page
add_filter('woocommerce_variable_price_html','custom_from',10);
add_filter('woocommerce_grouped_price_html','custom_from',10);
add_filter('woocommerce_variable_sale_price_html','custom_from',10);
function custom_from($price){
    return false;
}

// WooCommerce - add SKU in category page before price
add_action( 'woocommerce_after_shop_loop_item_title', 'prima_custom_shop_item', 1);
function prima_custom_shop_item() {
	global $post, $product;
	
	/* product sku */
	echo '<p>SKU: '.$product->get_sku().'</p>';
}

//show empty product categories
add_filter( 'woocommerce_product_subcategories_hide_empty', 'show_empty_categories', 10, 1 );
function show_empty_categories ( $show_empty ) {
    $show_empty  =  true;
    // You can add other logic here too
    return $show_empty;
}

//Hide subcategory count in woocommerce
add_filter( 'woocommerce_subcategory_count_html', 'custom_hide_category_count' );
function custom_hide_category_count() {
	// No count
}

//Remove Related Products
remove_action( 'woocommerce_after_single_product_summary', 'woocommerce_output_related_products', 20);

//Remove Product Sort Dropdown on Category Page
remove_action( 'woocommerce_before_shop_loop', 'woocommerce_catalog_ordering', 30 );

//Remove Result Count on Category Page
remove_action( 'woocommerce_before_shop_loop', 'woocommerce_result_count', 20 );

//Disable Search Results Redirect to Product Page
add_filter( 'woocommerce_redirect_single_search_result', '__return_false' );

//force display empty subcategories in category pages
add_filter( 'woocommerce_product_subcategories_hide_empty', 'so_28060317', 10, 1 );
function so_28060317 ( $show_empty ) {
    $show_empty  =  true;

    return $show_empty;
}

// Change number or products per row to 3
add_filter('loop_shop_columns', 'loop_columns');
if (!function_exists('loop_columns')) {
	function loop_columns() {
		return 3; // 3 products per row
	}
}

// Display 24 products per page. Goes in functions.php
add_filter( 'loop_shop_per_page', create_function( '$cols', 'return 24;' ), 20 );

//display category image on category page
add_action( 'woocommerce_archive_description', 'woocommerce_category_image', 2 );
function woocommerce_category_image() {
    if ( is_product_category() ){
	    global $wp_query;
	    $cat = $wp_query->get_queried_object();
	    $thumbnail_id = get_woocommerce_term_meta( $cat->term_id, 'thumbnail_id', true );
	    $image = wp_get_attachment_url( $thumbnail_id );
	    if ( $image ) {
		    echo '<img class="cat-thumbnail" src="' . $image . '" alt="" />';
		}
	}
}

//remove related products from single product page
remove_action ( 'woocommerce_after_single_product_summary', 'woocommerce_output_related_products', 20);

//remove price from single product page
remove_action ( 'woocommerce_single_product_summary', 'woocommerce_template_single_price', 10);

// hide product price on category page
function woo_product_listing_remove_price(){
  remove_action( 'woocommerce_after_shop_loop_item_title', 'woocommerce_template_loop_price', 10);
}
add_action( 'init', 'woo_product_listing_remove_price' );


remove_action( 'woocommerce_before_subcategory_title', 'woocommerce_subcategory_thumbnail', 10);
add_action( 'woocommerce_before_subcategory_title', 'woocommerce_subcategory_thumbnail', 10);
 
 
// WooCommerce Loop Subcategory Thumbs - Add Image Wrapper

if ( ! function_exists( 'woocommerce_subcategory_thumbnail' ) ) {

	function woocommerce_subcategory_thumbnail( $category ) {
        $small_thumbnail_size   = apply_filters( 'single_product_small_thumbnail_size', 'shop_catalog' );
        $dimensions             = wc_get_image_size( $small_thumbnail_size );
        $thumbnail_id           = get_woocommerce_term_meta( $category->term_id, 'thumbnail_id', true  );
 
        if ( $thumbnail_id ) {
            $image = wp_get_attachment_image_src( $thumbnail_id, $small_thumbnail_size  );
            $image = $image[0];
        } else {
            $image = wc_placeholder_img_src();
        }
 
         if ( $image ) {
             // Prevent esc_url from breaking spaces in urls for image embeds
             // Ref: http://core.trac.wordpress.org/ticket/23605
             $image = str_replace( ' ', '%20', $image );
 
             echo '<div class="imagewrapper"><img src="' . esc_url( $image ) . '" alt="' . esc_attr( $category->name ) . '" width="' . esc_attr( $dimensions['width'] ) . '" height="' . esc_attr( $dimensions['height'] ) . '" /></div>';
         }
    }
}

remove_action( 'woocommerce_before_subcategory_title', 'woocommerce_subcategory_thumbnail', 10);
add_action( 'woocommerce_before_subcategory_title', 'woocommerce_subcategory_thumbnail', 10);


//Minimum Order Dollar Amount for a specific product (this example: Curtain Wall must be $100 or more)
add_action( 'woocommerce_check_cart_items', 'spyr_set_min_total' );
function spyr_set_min_total() {
    // Only run in the Cart or Checkout pages
    if( is_cart() || is_checkout() ) {
        global $woocommerce;
 
        // Set minimum Curtain Wall total
        $minimum_cart_total = 100;
 
        // Total we are going to be using for the Math
        // This is before taxes and shipping charges
        $total = 0;

        //foreach products in the cart ()
        foreach ( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {
            $_product     = apply_filters( 'woocommerce_cart_item_product', $cart_item['data'], $cart_item, $cart_item_key );
            //curtain wall product id == 3288
            $product_id   = apply_filters( 'woocommerce_cart_item_product_id', $cart_item['product_id'], $cart_item, $cart_item_key );

            if (strcmp($cart_item['product_id'], "3288") == 0 ) {
                $subtotal = $_product->get_price() * (float)$cart_item['quantity'];
                $total = $total + $subtotal;
            }           
        }
      

        // Will display a message along the lines of
        // A Minimum of 100 USD is required before checking out. (Cont. below)
        // Current cart total: 6 USD 
        if( $total <= $minimum_cart_total  ) {
            // Display our error message
            wc_add_notice( sprintf( '<strong>A Minimum subtotal of $%s %s is required for Curtain Walls before checking out.</strong>'
                .'<br />Current cart\'s total: $%s %s',
                $minimum_cart_total,
                get_option( 'woocommerce_currency'),
                $total,
                get_option( 'woocommerce_currency') ),
            'error' );
        }
    }
}

Hi @tbahsan

Can you tell me how you added a list of product categories and custom taxonomy in a widget area? If you using your own code, it would help me if you can share the code snippet. If you are using a plugin, let me know which plugin you are using. (including name of the plugin and URL of the plugin).

In addition, can you tell me WordPress version and WooCommerce version you are using?

Thanks!