Cheatsheet - WooCommerce Customization in functions.php

functions.php

<?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' );
        }
    }
}