Custom Taxonomy permalink – woocommerce

I’ve found (almost) great solution for my problem. I just wanna write a color filtering. Found something like this:

<?php $wcatTerms = get_terms(‘pa_color’, array(‘hide_empty’ => 0, ‘parent’ =>0));
foreach($wcatTerms as $wcatTerm) :
?>
<ul>
<li>
<a href=”<?php echo get_term_link( $wcatTerm->slug, $wcatTerm->taxonomy ); ?>”><?php echo $wcatTerm->name; ?></a>
<ul class=”megaSubCat”>
<?php
$wsubargs = array(
‘hierarchical’ => 1,
‘show_option_none’ => ”,
‘hide_empty’ => 0,
‘parent’ => $wcatTerm->term_id,
‘taxonomy’ => ‘pa_color’
);
$wsubcats = get_categories($wsubargs);
foreach ($wsubcats as $wsc):
?>
<li><a href=”<?php echo get_term_link( $wsc->slug, $wsc->taxonomy );?>”><?php echo $wsc->name;?></a></li>
<?php
endforeach;
?>
</ul>
</li>
</ul>
<?php
endforeach;
?>

It shows all I need but the problem is permalink.
For example if I click on a “brown” color it goes to
“mysite.com/wordpress/color/brown/”.

How can I make it something like this:
wordpress/category-product/classic-backpack/?filter_color=yellow

I’ve edited core file

class-wc-widget-layered-nav.php

so it looks like [CHECKOUT LAST IF IN THE FILE]
core file you can find here:

https://github.com/woocommerce/woocommerce/blob/master/includes/widgets/class-wc-widget-layered-nav.php

<?php
/**
* Layered nav widget
*
* @package WooCommerce/Widgets
* @version 2.6.0
*/
defined( ‘ABSPATH’ ) || exit;
/**
* Widget layered nav class.
*/
class WC_Widget_Layered_Nav extends WC_Widget {
/**
* Constructor.
*/
public function __construct() {
$this->widget_cssclass = ‘woocommerce widget_layered_nav woocommerce-widget-layered-nav’;
$this->widget_description = __( ‘Display a list of attributes to filter products in your store.’, ‘woocommerce’ );
$this->widget_id = ‘woocommerce_layered_nav’;
$this->widget_name = __( ‘Filter Products by Attribute’, ‘woocommerce’ );
parent::__construct();
}
/**
* Updates a particular instance of a widget.
*
* @see WP_Widget->update
*
* @param array $new_instance New Instance.
* @param array $old_instance Old Instance.
*
* @return array
*/
public function update( $new_instance, $old_instance ) {
$this->init_settings();
return parent::update( $new_instance, $old_instance );
}
/**
* Outputs the settings update form.
*
* @see WP_Widget->form
*
* @param array $instance Instance.
*/
public function form( $instance ) {
$this->init_settings();
parent::form( $instance );
}
/**
* Init settings after post types are registered.
*/
public function init_settings() {
$attribute_array = array();
$attribute_taxonomies = wc_get_attribute_taxonomies();
if ( ! empty( $attribute_taxonomies ) ) {
foreach ( $attribute_taxonomies as $tax ) {
if ( taxonomy_exists( wc_attribute_taxonomy_name( $tax->attribute_name ) ) ) {
$attribute_array[ $tax->attribute_name ] = $tax->attribute_name;
}
}
}
$this->settings = array(
‘title’ => array(
‘type’ => ‘text’,
‘std’ => __( ‘Filter by’, ‘woocommerce’ ),
‘label’ => __( ‘Title’, ‘woocommerce’ ),
),
‘attribute’ => array(
‘type’ => ‘select’,
‘std’ => ”,
‘label’ => __( ‘Attribute’, ‘woocommerce’ ),
‘options’ => $attribute_array,
),
‘display_type’ => array(
‘type’ => ‘select’,
‘std’ => ‘list’,
‘label’ => __( ‘Display type’, ‘woocommerce’ ),
‘options’ => array(
‘list’ => __( ‘List’, ‘woocommerce’ ),
‘dropdown’ => __( ‘Dropdown’, ‘woocommerce’ ),
),
),
‘query_type’ => array(
‘type’ => ‘select’,
‘std’ => ‘and’,
‘label’ => __( ‘Query type’, ‘woocommerce’ ),
‘options’ => array(
‘and’ => __( ‘AND’, ‘woocommerce’ ),
‘or’ => __( ‘OR’, ‘woocommerce’ ),
),
),
);
}
/**
* Output widget.
*
* @see WP_Widget
*
* @param array $args Arguments.
* @param array $instance Instance.
*/
public function widget( $args, $instance ) {
if ( ! is_shop() && ! is_product_taxonomy() ) {
return;
}
$_chosen_attributes = WC_Query::get_layered_nav_chosen_attributes();
$taxonomy = isset( $instance[‘attribute’] ) ? wc_attribute_taxonomy_name( $instance[‘attribute’] ) : $this->settings[‘attribute’][‘std’];
$query_type = isset( $instance[‘query_type’] ) ? $instance[‘query_type’] : $this->settings[‘query_type’][‘std’];
$display_type = isset( $instance[‘display_type’] ) ? $instance[‘display_type’] : $this->settings[‘display_type’][‘std’];
if ( ! taxonomy_exists( $taxonomy ) ) {
return;
}
$get_terms_args = array( ‘hide_empty’ => ‘1’ );
$orderby = wc_attribute_orderby( $taxonomy );
switch ( $orderby ) {
case ‘name’:
$get_terms_args[‘orderby’] = ‘name’;
$get_terms_args[‘menu_order’] = false;
break;
case ‘id’:
$get_terms_args[‘orderby’] = ‘id’;
$get_terms_args[‘order’] = ‘ASC’;
$get_terms_args[‘menu_order’] = false;
break;
case ‘menu_order’:
$get_terms_args[‘menu_order’] = ‘ASC’;
break;
}
$terms = get_terms( $taxonomy, $get_terms_args );
if ( 0 === count( $terms ) ) {
return;
}
switch ( $orderby ) {
case ‘name_num’:
usort( $terms, ‘_wc_get_product_terms_name_num_usort_callback’ );
break;
case ‘parent’:
usort( $terms, ‘_wc_get_product_terms_parent_usort_callback’ );
break;
}
ob_start();
$this->widget_start( $args, $instance );
if ( ‘dropdown’ === $display_type ) {
wp_enqueue_script( ‘selectWoo’ );
wp_enqueue_style( ‘select2’ );
$found = $this->layered_nav_dropdown( $terms, $taxonomy, $query_type );
} else {
$found = $this->layered_nav_list( $terms, $taxonomy, $query_type );
}
$this->widget_end( $args );
// Force found when option is selected – do not force found on taxonomy attributes.
if ( ! is_tax() && is_array( $_chosen_attributes ) && array_key_exists( $taxonomy, $_chosen_attributes ) ) {
$found = true;
}
if ( ! $found ) {
ob_end_clean();
} else {
echo ob_get_clean(); // @codingStandardsIgnoreLine
}
}
/**
* Return the currently viewed taxonomy name.
*
* @return string
*/
protected function get_current_taxonomy() {
return is_tax() ? get_queried_object()->taxonomy : ”;
}
/**
* Return the currently viewed term ID.
*
* @return int
*/
protected function get_current_term_id() {
return absint( is_tax() ? get_queried_object()->term_id : 0 );
}
/**
* Return the currently viewed term slug.
*
* @return int
*/
protected function get_current_term_slug() {
return absint( is_tax() ? get_queried_object()->slug : 0 );
}
/**
* Show dropdown layered nav.
*
* @param array $terms Terms.
* @param string $taxonomy Taxonomy.
* @param string $query_type Query Type.
* @return bool Will nav display?
*/
protected function layered_nav_dropdown( $terms, $taxonomy, $query_type ) {
global $wp;
$found = false;
if ( $taxonomy !== $this->get_current_taxonomy() ) {
$term_counts = $this->get_filtered_term_product_counts( wp_list_pluck( $terms, ‘term_id’ ), $taxonomy, $query_type );
$_chosen_attributes = WC_Query::get_layered_nav_chosen_attributes();
$taxonomy_filter_name = str_replace( ‘pa_’, ”, $taxonomy );
$taxonomy_label = wc_attribute_label( $taxonomy );
/* translators: %s: taxonomy name */
$any_label = apply_filters( ‘woocommerce_layered_nav_any_label’, sprintf( __( ‘Any %s’, ‘woocommerce’ ), $taxonomy_label ), $taxonomy_label, $taxonomy );
$multiple = ‘or’ === $query_type;
$current_values = isset( $_chosen_attributes[ $taxonomy ][‘terms’] ) ? $_chosen_attributes[ $taxonomy ][‘terms’] : array();
if ( ” === get_option( ‘permalink_structure’ ) ) {
$form_action = remove_query_arg( array( ‘page’, ‘paged’ ), add_query_arg( $wp->query_string, ”, home_url( $wp->request ) ) );
} else {
$form_action = preg_replace( ‘%/page/[0-9]+%’, ”, home_url( trailingslashit( $wp->request ) ) );
}
echo ‘<form method=”get” action=”‘ . esc_url( $form_action ) . ‘” class=”woocommerce-widget-layered-nav-dropdown”>’;
echo ‘<select class=”woocommerce-widget-layered-nav-dropdown dropdown_layered_nav_’ . esc_attr( $taxonomy_filter_name ) . ‘”‘ . ( $multiple ? ‘multiple=”multiple”‘ : ” ) . ‘>’;
echo ‘<option value=””>’ . esc_html( $any_label ) . ‘</option>’;
foreach ( $terms as $term ) {
// If on a term page, skip that term in widget list.
if ( $term->term_id === $this->get_current_term_id() ) {
continue;
}
// Get count based on current view.
$option_is_set = in_array( $term->slug, $current_values, true );
$count = isset( $term_counts[ $term->term_id ] ) ? $term_counts[ $term->term_id ] : 0;
// Only show options with count > 0.
if ( 0 < $count ) {
$found = true;
} elseif ( 0 === $count && ! $option_is_set ) {
continue;
}
echo ‘<option value=”‘ . esc_attr( urldecode( $term->slug ) ) . ‘” ‘ . selected( $option_is_set, true, false ) . ‘>’ . esc_html( $term->name ) . ‘</option>’;
}
echo ‘</select>’;
if ( $multiple ) {
echo ‘<button class=”woocommerce-widget-layered-nav-dropdown__submit” type=”submit” value=”‘ . esc_attr__( ‘Apply’, ‘woocommerce’ ) . ‘”>’ . esc_html__( ‘Apply’, ‘woocommerce’ ) . ‘</button>’;
}
if ( ‘or’ === $query_type ) {
echo ‘<input type=”hidden” name=”query_type_’ . esc_attr( $taxonomy_filter_name ) . ‘” value=”or” />’;
}
echo ‘<input type=”hidden” name=”filter_’ . esc_attr( $taxonomy_filter_name ) . ‘” value=”‘ . esc_attr( implode( ‘,’, $current_values ) ) . ‘” />’;
echo wc_query_string_form_fields( null, array( ‘filter_’ . $taxonomy_filter_name, ‘query_type_’ . $taxonomy_filter_name ), ”, true ); // @codingStandardsIgnoreLine
echo ‘</form>’;
wc_enqueue_js(

// Update value on change.
jQuery( ‘.dropdown_layered_nav_” . esc_js( $taxonomy_filter_name ) . “‘ ).change( function() {
var slug = jQuery( this ).val();
jQuery( ‘:input[name=”filter_” . esc_js( $taxonomy_filter_name ) . “”]’ ).val( slug );
// Submit form on change if standard dropdown.
if ( ! jQuery( this ).attr( ‘multiple’ ) ) {
jQuery( this ).closest( ‘form’ ).submit();
}
});
// Use Select2 enhancement if possible
if ( jQuery().selectWoo ) {
var wc_layered_nav_select = function() {
jQuery( ‘.dropdown_layered_nav_” . esc_js( $taxonomy_filter_name ) . “‘ ).selectWoo( {
placeholder: ‘” . wp_json_encode( (string) wp_specialchars_decode( $any_label, ENT_QUOTES ) ) . “‘,
minimumResultsForSearch: 5,
width: ‘100%’,
allowClear: ” . ( $multiple ? ‘false’ : ‘true’ ) . “,
language: {
noResults: function() {
return ‘” . esc_js( _x( ‘No matches found’, ‘enhanced select’, ‘woocommerce’ ) ) . “‘;
}
}
} );
};
wc_layered_nav_select();
}

);
}
return $found;
}
/**
* Count products within certain terms, taking the main WP query into consideration.
*
* This query allows counts to be generated based on the viewed products, not all products.
*
* @param array $term_ids Term IDs.
* @param string $taxonomy Taxonomy.
* @param string $query_type Query Type.
* @return array
*/
protected function get_filtered_term_product_counts( $term_ids, $taxonomy, $query_type ) {
global $wpdb;
$tax_query = WC_Query::get_main_tax_query();
$meta_query = WC_Query::get_main_meta_query();
if ( ‘or’ === $query_type ) {
foreach ( $tax_query as $key => $query ) {
if ( is_array( $query ) && $taxonomy === $query[‘taxonomy’] ) {
unset( $tax_query[ $key ] );
}
}
}
$meta_query = new WP_Meta_Query( $meta_query );
$tax_query = new WP_Tax_Query( $tax_query );
$meta_query_sql = $meta_query->get_sql( ‘post’, $wpdb->posts, ‘ID’ );
$tax_query_sql = $tax_query->get_sql( $wpdb->posts, ‘ID’ );
// Generate query.
$query = array();
$query[‘select’] = “SELECT COUNT( DISTINCT {$wpdb->posts}.ID ) as term_count, terms.term_id as term_count_id”;
$query[‘from’] = “FROM {$wpdb->posts}”;
$query[‘join’] = ”
INNER JOIN {$wpdb->term_relationships} AS term_relationships ON {$wpdb->posts}.ID = term_relationships.object_id
INNER JOIN {$wpdb->term_taxonomy} AS term_taxonomy USING( term_taxonomy_id )
INNER JOIN {$wpdb->terms} AS terms USING( term_id )
” . $tax_query_sql[‘join’] . $meta_query_sql[‘join’];
$query[‘where’] = ”
WHERE {$wpdb->posts}.post_type IN ( ‘product’ )
AND {$wpdb->posts}.post_status = ‘publish'”
. $tax_query_sql[‘where’] . $meta_query_sql[‘where’] .
‘AND terms.term_id IN (‘ . implode( ‘,’, array_map( ‘absint’, $term_ids ) ) . ‘)’;
$search = WC_Query::get_main_search_query_sql();
if ( $search ) {
$query[‘where’] .= ‘ AND ‘ . $search;
}
$query[‘group_by’] = ‘GROUP BY terms.term_id’;
$query = apply_filters( ‘woocommerce_get_filtered_term_product_counts_query’, $query );
$query = implode( ‘ ‘, $query );
// We have a query – let’s see if cached results of this query already exist.
$query_hash = md5( $query );
// Maybe store a transient of the count values.
$cache = apply_filters( ‘woocommerce_layered_nav_count_maybe_cache’, true );
if ( true === $cache ) {
$cached_counts = (array) get_transient( ‘wc_layered_nav_counts_’ . sanitize_title( $taxonomy ) );
} else {
$cached_counts = array();
}
if ( ! isset( $cached_counts[ $query_hash ] ) ) {
$results = $wpdb->get_results( $query, ARRAY_A ); // @codingStandardsIgnoreLine
$counts = array_map( ‘absint’, wp_list_pluck( $results, ‘term_count’, ‘term_count_id’ ) );
$cached_counts[ $query_hash ] = $counts;
if ( true === $cache ) {
set_transient( ‘wc_layered_nav_counts_’ . sanitize_title( $taxonomy ), $cached_counts, DAY_IN_SECONDS );
}
}
return array_map( ‘absint’, (array) $cached_counts[ $query_hash ] );
}
/**
* Show list based layered nav.
*
* @param array $terms Terms.
* @param string $taxonomy Taxonomy.
* @param string $query_type Query Type.
* @return bool Will nav display?
*/
protected function layered_nav_list( $terms, $taxonomy, $query_type ) {
// List display.
echo ‘<ul class=”woocommerce-widget-layered-nav-list”>’;
$term_counts = $this->get_filtered_term_product_counts( wp_list_pluck( $terms, ‘term_id’ ), $taxonomy, $query_type );
$_chosen_attributes = WC_Query::get_layered_nav_chosen_attributes();
$found = false;
foreach ( $terms as $term ) {
$current_values = isset( $_chosen_attributes[ $taxonomy ][‘terms’] ) ? $_chosen_attributes[ $taxonomy ][‘terms’] : array();
$option_is_set = in_array( $term->slug, $current_values, true );
$count = isset( $term_counts[ $term->term_id ] ) ? $term_counts[ $term->term_id ] : 0;
// Skip the term for the current archive.
if ( $this->get_current_term_id() === $term->term_id ) {
continue;
}
// Only show options with count > 0.
if ( 0 <= $count ) {
$found = true;
} elseif ( 0 === $count && ! $option_is_set ) {
continue;
}
$filter_name = ‘filter_’ . str_replace( ‘pa_’, ”, $taxonomy );
$current_filter = isset( $_GET[ $filter_name ] ) ? explode( ‘,’, wc_clean( wp_unslash( $_GET[ $filter_name ] ) ) ) : array(); // WPCS: input var ok, CSRF ok.
$current_filter = array_map( ‘sanitize_title’, $current_filter );
if ( ! in_array( $term->slug, $current_filter, true ) ) {
$current_filter[] = $term->slug;
}
$link = remove_query_arg( $filter_name, $this->get_current_page_url() );
// Add current filters to URL.
foreach ( $current_filter as $key => $value ) {
// Exclude query arg for current term archive term.
if ( $value === $this->get_current_term_slug() ) {
unset( $current_filter[ $key ] );
}
// Exclude self so filter can be unset on click.
if ( $option_is_set && $value === $term->slug ) {
unset( $current_filter[ $key ] );
}
}
if ( ! empty( $current_filter ) ) {
asort( $current_filter );
$link = add_query_arg( $filter_name, implode( ‘,’, $current_filter ), $link );
// Add Query type Arg to URL.
if ( ‘or’ === $query_type && ! ( 1 === count( $current_filter ) && $option_is_set ) ) {
$link = add_query_arg( ‘query_type_’ . sanitize_title( str_replace( ‘pa_’, ”, $taxonomy ) ), ‘or’, $link );
}
$link = str_replace( ‘%2C’, ‘,’, $link );
}
$meta_image = get_wp_term_image($term->term_id);

if ( $count < 0 || $option_is_set ) {
$link = esc_url( apply_filters( ‘woocommerce_layered_nav_link’, $link, $term, $taxonomy ) );
$term_html = ‘<a rel=”nofollow” href=”‘ . $link . ‘”><img class=”colorfilter-dot” alt=”‘ . $term->name . ‘” src=”‘ . $meta_image . ‘”/></a>’;
} else {
$link = esc_url( apply_filters( ‘woocommerce_layered_nav_link’, $link, $term, $taxonomy ) );
$term_html = ‘<a rel=”nofollow” href=”‘ . $link . ‘”><img class=”colorfilter-dot” alt=”‘ . $term->name . ‘” src=”‘ . $meta_image . ‘”/></a>’;
}
$term_html .= ‘ ‘ . apply_filters( ‘woocommerce_layered_nav_count’, ‘<span class=”count”>(‘ . absint( $count ) . ‘)</span>’, $count, $term );
echo ‘<li class=”woocommerce-widget-layered-nav-list__item wc-layered-nav-term ‘ . ( $option_is_set ? ‘woocommerce-widget-layered-nav-list__item–chosen chosen’ : ” ) . ‘”>’;
echo wp_kses_post( apply_filters( ‘woocommerce_layered_nav_term_html’, $term_html, $term, $link, $count ) );
echo ‘</li>’;
}
echo ‘</ul>’;
return $found;
}
}

After editing this i get the link:
wordpress/category-product/classic-backpack/?filter_color=yellow

ofc classic-backpack is the name of category so it changes.

Is it possible to do it with the first code?

Read more here:: Custom Taxonomy permalink – woocommerce

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