Term.php
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<?php
namespace ACP\Search\Query;
use ACP\Search\Query;
use ACP\TermQueryInformation;
use WP_Term_Query;
class Term extends Query {
public function register() {
add_action( 'pre_get_terms', [ $this, 'callback_meta_query' ], 1 );
add_filter( 'terms_clauses', [ $this, 'callback_where' ], 1, 3 );
add_filter( 'terms_clauses', [ $this, 'callback_join' ], 1, 3 );
}
public function callback_where( $pieces, $taxonomies, $args ) {
if ( ! ( new TermQueryInformation() )->is_main_query_by_args( $args ) ) {
return $pieces;
}
foreach ( $this->bindings as $binding ) {
if ( $binding->get_where() ) {
$pieces['where'] .= ' AND ' . $binding->get_where();
}
}
return $pieces;
}
public function callback_join( $pieces, $taxonomies, $args ) {
if ( ! ( new TermQueryInformation() )->is_main_query_by_args( $args ) ) {
return $pieces;
}
foreach ( $this->bindings as $binding ) {
if ( $binding->get_join() ) {
$pieces['join'] .= "\n" . $binding->get_where();
}
}
return $pieces;
}
/**
* @param WP_Term_Query $query
*
* @return void
*/
public function callback_meta_query( WP_Term_Query $query ) {
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;
}
/**
* @param WP_Term_Query $query
*
* @return bool
*/
private function is_main_query( WP_Term_Query $query ) {
return ( new TermQueryInformation() )->is_main_query( $query );
}
}