Woocommerce breadcrumbs multiple categories - php

Question

I have e commerce website in wordpress. There are lot of product in it & many product comes under multiple categories like 600 mah Power bank is comes under automobile, IT, media etc. My problem is when i go to the detail of a product there it by default pick up only one category no matter if go through IT category at the end it shows me automobile like this Home / Shop / industry / Automobile / 600 mah Power Bank. But i went to this product via IT so it should show me like this Home / Shop / industry / IT / 600 mah Power Bank.
How can iget path where i come from previous page?

Answer 1

if you are using Woocommerce you can use the following directly, if not it will need adapting but you get the idea:
if (get_post_type() == 'product' && is_single() && ! is_attachment()) {
echo $prepend;
if ($terms = get_the_terms($post->ID, 'product_cat')) {
$referer = wp_get_referer();
foreach ($terms as $term) {
$referer_slug = (strpos($referer, $term->slug));
if ($referer_slug == true) {
$category_name = $term->name;
$ancestors = get_ancestors($term->term_id, 'product_cat');
$ancestors = array_reverse($ancestors);
foreach ($ancestors as $ancestor) {
$ancestor = get_term($ancestor, 'product_cat');
if (! is_wp_error($ancestor) && $ancestor) {
echo $before . '' . $ancestor->name . '' . $after . $delimiter;
}
}
echo $before . '' . $category_name . '' . $after . $delimiter;
}
}
}
echo $before . get_the_title() . $after;
}
The main bulk of the work here is done by wp_get_referer which gets the referring URL of the product your visitor has navigated to. The rest of the code checks if a valid category is contained within the URL and uses it in the breadcrumb.
See Jonathon Js post here for more information http://www.cryoutcreations.eu/forums/t/wrong-breadcrumbs-displayed

Answer 2

Updated answer for anyone still encountering this issue on a newer version of WooCommerce, this solution worked for me on WooCommerce 3.5.4.
This code should be placed inside the following file path (i.e. a child theme)
/wp-content/themes/your-child-theme/woocommerce/global/breadcrumb.php
It will override the default WooCommerce breadcrumb code.
http://pastebin.com/raw/bemM8ZNF
/**
* Shop breadcrumb
*
* This template can be overridden by copying it to yourtheme/woocommerce/global/breadcrumb.php.
*
* HOWEVER, on occasion WooCommerce will need to update template files and you
* (the theme developer) will need to copy the new files to your theme to
* maintain compatibility. We try to do this as little as possible, but it does
* happen. When this occurs the version of the template file will be bumped and
* the readme will list any important changes.
*
* #see https://docs.woocommerce.com/document/template-structure/
* #author WooThemes
* #package WooCommerce/Templates
* #version 2.3.0
* #see woocommerce_breadcrumb()
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
if ( $breadcrumb ) {
echo $wrap_before;
if ( is_single() && get_post_type() == 'product' ) {
echo $prepend;
if ( $terms = get_the_terms( $post->ID, 'product_cat' ) ) {
$referer = wp_get_referer();
$printed = array();
foreach( $terms as $term){
if(in_array($term->id, $printed)) continue;
$referer_slug = (strpos($referer, '/'.$term->slug.'/'));
if(!$referer_slug==false){
$printed[] = $term->id;
$category_name = $term->name;
$ancestors = get_ancestors( $term->term_id, 'product_cat' );
$ancestors = array_reverse( $ancestors );
foreach ( $ancestors as $ancestor ) {
$ancestor = get_term( $ancestor, 'product_cat' );
if ( ! is_wp_error( $ancestor ) && $ancestor )
echo $before . '' . $ancestor->name . '' . $after . $delimiter;
}
echo $before . '' . $category_name . '' . $after . $delimiter;
}
}
}
echo $before . get_the_title() . $after;
} else {
foreach ( $breadcrumb as $key => $crumb ) {
echo $before;
if ( ! empty( $crumb[1] ) && sizeof( $breadcrumb ) !== $key + 1 ) {
echo '' . esc_html( $crumb[0] ) . '';
} else {
echo esc_html( $crumb[0] );
}
echo $after;
if ( sizeof( $breadcrumb ) !== $key + 1 ) {
echo $delimiter;
}
}
}
echo $wrap_after;
}
C/O: Joris Witteman

Answer 3

I reworked the code a little bit to account for a primary category and a referred one, having infinite parents.
I used the breadcrumb filter as it is quite clean, directly in the single product template, but in case you need it elsewhere you can use the single conditional.
function breadcumbs_referred_or_primary ($main, $terms)
{
// Our primary term is 520 (hardcoded)
$referer = wp_get_referer();
$referredTerm = -1;
$referredTermIndex = -1;
$primaryTermId = 520; // hardcoded
$primaryTermIndex = -1;
foreach($terms as $key => $term) {
if ($referredTerm != -1) break; // we found it in a previous iteration!
$ancestors = get_ancestors( $term->term_id, 'product_cat');
array_unshift($ancestors, $term->term_id);
if ($primaryTermIndex == -1 && in_array($primaryTermId, $ancestors)) $primaryTermIndex = $key;
foreach ($ancestors as $ancestor) {
if($referredTerm != -1) break 2; // we found it in a previous iteration!
$ancestor = get_term( $ancestor, 'product_cat' );
$referer_slug = (strpos($referer, '/'.$ancestor->slug.'/'));
if (!$referer_slug==false) { // it's found in the current level
$referredTerm = $term->term_id;
$referredTermIndex = $key;
}
}
}
// we return either the browsed terms or the primary term
if ($referredTermIndex != -1) {
return $terms[$referredTermIndex];
} else {
return $terms[$primaryTermIndex];
}
}
add_filter('woocommerce_breadcrumb_main_term', 'breadcumbs_referred_or_primary', 10, 2);

Answer 4

My solution is:
if (!empty($breadcrumb)) {
echo $wrap_before;
if (is_single() && get_post_type() == 'product') {
$breadcrumb_diff = [];
$breadcrumb_diff[] = $breadcrumb[0];
if ($terms = get_the_terms($post->ID, 'product_cat')) {
$referer = wp_get_referer();
$site_url = site_url();
$referer = str_replace($site_url . '/zoomagazin/', '', $referer);
$referer_array = explode('/', $referer);
foreach ($referer_array as $term_slug) {
$get_term_by_slug = get_term_by('slug', $term_slug, 'product_cat');
$breadcrumb_diff[] = [$get_term_by_slug->name, get_term_link($term_slug, 'product_cat')];
}
$breadcrumb_diff[]= $breadcrumb[count($breadcrumb) - 1];
foreach ($breadcrumb_diff as $key => $crumb) {
echo $before;
if (!empty($crumb[1]) && sizeof($breadcrumb_diff) !== $key + 1) {
echo '' . esc_html($crumb[0]) . '';
} else {
echo esc_html($crumb[0]);
}
echo $after;
if (sizeof($breadcrumb) !== $key + 1) {
echo $delimiter;
}
}
}
} else {
foreach ($breadcrumb as $key => $crumb) {
echo $before;
if (!empty($crumb[1]) && sizeof($breadcrumb) !== $key + 1) {
echo '' . esc_html($crumb[0]) . '';
} else {
echo esc_html($crumb[0]);
}
echo $after;
if (sizeof($breadcrumb) !== $key + 1) {
echo $delimiter;
}
}
}
echo $wrap_after;
}