Modification to WooCommerce for WordPress featured image link - wordpress

Question

I need to change the link code that is being used for external products for woo commerce.
This is the code that generates the product image:
<?php
/**
* Single Product Image
*
* #author WooThemes
* #package WooCommerce/Templates
* #version 2.0.3
*/
if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly
global $post, $woocommerce;
?>
<div class="images">
<?php
if ( has_post_thumbnail() ) {
$image = get_the_post_thumbnail( $post->ID, apply_filters( 'single_product_large_thumbnail_size', 'shop_single' ) );
$image_title = esc_attr( get_the_title( get_post_thumbnail_id() ) );
$image_link = wp_get_attachment_url( get_post_thumbnail_id() );
$attachment_count = count( get_children( array( 'post_parent' => $post->ID, 'post_mime_type' => 'image', 'post_type' => 'attachment' ) ) );
if ( $attachment_count != 1 ) {
$gallery = '[product-gallery]';
} else {
$gallery = '';
}
echo apply_filters( 'woocommerce_single_product_image_html', sprintf( '%s', $image_link, $image_title, $image ), $post->ID );
} else {
echo apply_filters( 'woocommerce_single_product_image_html', sprintf( '<img src="%s" alt="Placeholder" />', woocommerce_placeholder_img_src() ), $post->ID );
}
?>
<?php do_action( 'woocommerce_product_thumbnails' ); ?>
So I just want to change out the image link to the external link url so if someone clicks on the picture, they will go to the external link instead of a blow up of the image
The code to do so is within the add to cart code, but I don't know how to apply it to the image:
<?php
/**
* Loop Add to Cart
*
* #author WooThemes
* #package WooCommerce/Templates
* #version 1.6.4
*/
if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly
global $product;
?>
<?php if ( ! $product->is_in_stock() ) : ?>
<?php echo apply_filters( 'out_of_stock_add_to_cart_text', __( 'Read More', 'woocommerce' ) ); ?>
<?php else : ?>
<?php
$link = array(
'url' => '',
'label' => '',
'class' => ''
);
$handler = apply_filters( 'woocommerce_add_to_cart_handler', $product->product_type, $product );
switch ( $handler ) {
case "variable" :
$link['url'] = apply_filters( 'variable_add_to_cart_url', get_permalink( $product->id ) );
$link['label'] = apply_filters( 'variable_add_to_cart_text', __( 'Select options', 'woocommerce' ) );
break;
case "grouped" :
$link['url'] = apply_filters( 'grouped_add_to_cart_url', get_permalink( $product->id ) );
$link['label'] = apply_filters( 'grouped_add_to_cart_text', __( 'View options', 'woocommerce' ) );
break;
case "external" :
$link['url'] = apply_filters( 'external_add_to_cart_url', get_permalink( $product->id ) );
$link['label'] = apply_filters( 'external_add_to_cart_text', __( 'Read More', 'woocommerce' ) );
break;
default :
if ( $product->is_purchasable() ) {
$link['url'] = apply_filters( 'add_to_cart_url', esc_url( $product->add_to_cart_url() ) );
$link['label'] = apply_filters( 'add_to_cart_text', __( 'Add to cart', 'woocommerce' ) );
$link['class'] = apply_filters( 'add_to_cart_class', 'add_to_cart_button' );
} else {
$link['url'] = apply_filters( 'not_purchasable_url', get_permalink( $product->id ) );
$link['label'] = apply_filters( 'not_purchasable_text', __( 'Read More', 'woocommerce' ) );
}
break;
}
echo apply_filters( 'woocommerce_loop_add_to_cart_link', sprintf('%s', esc_url( $link['url'] ), esc_attr( $product->id ), esc_attr( $product->get_sku() ), esc_attr( $link['class'] ), esc_attr( $product->product_type ), esc_html( $link['label'] ) ), $product, $link );
?>
Sorry I'm such a nube, but I can't figure out how to get the link code the same as the 'add to cart' link code, thanks for the help!

Answer 1

Why not copy product-image.php to your theme or template (this will overwrite the Woocommerce default) and then change the following:
echo apply_filters( 'woocommerce_single_product_image_html', sprintf( '%s', $image_link, $image_title, $image ), $post->ID );
Where it says
<a href="%s"
Replace %s with your link, or you can register a custom post field and have a different link for each of your products.
You can ignore the "add to cart" code if this is all you are trying to accomplish. I might have misunderstood - so let me know if it's still unclear.