is_main_query() &&
(is_shop() || is_product_category() || is_home())
) {
// Replace this with your actual boolean logic
$show_lokaal = $_SESSION["lokaal_tarief"] ?? false;
// Determine which tag to show
$tag_to_show = $show_lokaal ? "lokaal" : "algemeen";
// Set the tax query to only include the chosen tag
$tax_query = [
[
"taxonomy" => "product_tag",
"field" => "slug",
"terms" => [$tag_to_show],
"operator" => "IN",
],
];
$q->set("tax_query", $tax_query);
}
}
public function redirect_if_missing_tag()
{
// Only run on frontend single product pages
if (is_admin() || !is_singular("product")) {
return;
}
$product_id = get_the_ID();
$product = wc_get_product($product_id);
$show_lokaal = $_SESSION["lokaal_tarief"] ?? false;
$tag_to_show = $show_lokaal ? "lokaal" : "algemeen";
if (!$product || !has_term($tag_to_show, "product_tag", $product_id)) {
wp_redirect(home_url("/shop")); // Works with Dutch permalink
exit();
}
}
public function hide_lokaal_and_overige_regios_tags(
$terms,
$post_id,
$taxonomy,
) {
if ($taxonomy === "product_tag" && !is_admin()) {
$tags_to_hide = ["lokaal", "algemeen"];
return array_filter($terms, function ($term) use ($tags_to_hide) {
return !in_array($term->slug, $tags_to_hide);
});
}
return $terms;
}
public function make_checkout_fields_readonly($fields)
{
$readonly_fields = [
"billing_address_1",
"billing_city",
"billing_postcode",
];
foreach ($readonly_fields as $field) {
if (isset($fields["billing"][$field])) {
$fields["billing"][$field]["custom_attributes"][
"readonly"
] = true;
}
}
return $fields;
}
public function custom_filter_related_products_by_session_tag($query)
{
// Start session if not already started
if (session_status() === PHP_SESSION_NONE) {
session_start();
}
// Determine which tag to exclude based on session
$show_lokaal = $_SESSION["lokaal_tarief"] ?? false;
$exclude_tag = $show_lokaal ? "algemeen" : "lokaal";
global $wpdb;
// Get term_taxonomy_id for the tag to exclude
$excluded_term = $wpdb->get_var(
$wpdb->prepare(
"SELECT term_taxonomy_id FROM {$wpdb->term_taxonomy} tt
JOIN {$wpdb->terms} t ON tt.term_id = t.term_id
WHERE tt.taxonomy = 'product_tag' AND t.slug = %s",
$exclude_tag,
),
);
if ($excluded_term) {
$query[
"join"
] .= " LEFT JOIN {$wpdb->term_relationships} exclude_tr ON exclude_tr.object_id = p.ID ";
$query["where"] .= $wpdb->prepare(
" AND ( exclude_tr.term_taxonomy_id != %d OR exclude_tr.term_taxonomy_id IS NULL )",
$excluded_term,
);
}
return $query;
}
}
new PrijsPerPostcode();