Term.php
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<?php
namespace ACP\Search\Query;
use ACP\Search\Query;
use ACP\Search\Query\Bindings\QueryArguments;
use ACP\TermQueryInformation;
use WP_Term_Query;
class Term extends Query
{
public function register(): void
{
add_action('pre_get_terms', [$this, 'callback_meta_query'], 1);
add_action('pre_get_terms', [$this, 'callback_query_arguments'], 1);
add_filter('terms_clauses', [$this, 'callback_clauses'], 1, 3);
}
public function callback_clauses($pieces, $taxonomies, $args)
{
if ( ! TermQueryInformation::is_main_query_by_args($args)) {
return $pieces;
}
foreach ($this->bindings as $binding) {
if ($binding->get_where()) {
$pieces['where'] .= "\nAND " . $binding->get_where();
}
if ($binding->get_join()) {
$pieces['join'] .= "\n" . $binding->get_join();
}
if ($binding->get_order_by()) {
$pieces['orderby'] = "ORDER BY " . $binding->get_order_by();
$pieces['order'] = false;
}
if ($binding->get_group_by()) {
$pieces['orderby'] = "GROUP BY " . $binding->get_group_by() . "\n" . $pieces['orderby'];
}
}
return $pieces;
}
public function callback_query_arguments(WP_Term_Query $query): void
{
if ( ! $this->is_main_query($query)) {
return;
}
foreach ($this->bindings as $binding) {
if ($binding instanceof QueryArguments) {
foreach ($binding->get_query_arguments() as $query_var => $value) {
$query->query_vars[$query_var] = $value;
}
}
}
}
public function callback_meta_query(WP_Term_Query $query): void
{
if ( ! $this->is_main_query($query)) {
return;
}
$meta_query = $this->get_meta_query();
if ( ! $meta_query) {
return;
}
if ($query->query_vars['meta_query']) {
$meta_query[] = $query->query_vars['meta_query'];
}
$query->query_vars['meta_query'] = $meta_query;
}
private function is_main_query(WP_Term_Query $query): bool
{
return TermQueryInformation::is_main_query($query);
}
}