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<?php |
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|
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namespace Boxzilla\Filter; |
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|
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class Autocomplete { |
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|
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public function add_hooks() { |
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add_action( 'wp_ajax_boxzilla_autocomplete', array( $this, 'ajax' ) ); |
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} |
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|
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/** |
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* AJAX listener for autocomplete |
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*/ |
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public function ajax() { |
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$q = ( isset( $_GET['q'] ) ) ? sanitize_text_field( $_GET['q'] ) : ''; |
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$type = ( isset( $_GET['type'] ) && in_array( $_GET['type'], array( 'page', 'post', 'category', 'post_type' ) ) ) ? $_GET['type'] : 'post'; |
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|
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// do nothing if supplied 'q' parameter is omitted or empty |
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// or less than 2 characters long |
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if( empty( $q ) || strlen( $q ) < 2 ) { |
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die(); |
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} |
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|
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switch( $type ) { |
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|
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default: |
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case 'post': |
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case 'page': |
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echo $this->list_posts( $q, $type ); |
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break; |
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|
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case 'category': |
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echo $this->list_categories( $q ); |
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break; |
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|
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case 'post_type': |
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echo $this->list_post_types( $q ); |
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break; |
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} |
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|
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die(); |
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} |
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|
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/** |
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* @param string $query |
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* @param string $post_type |
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* |
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* @return string |
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*/ |
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protected function list_posts( $query, $post_type = 'post' ) { |
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global $wpdb; |
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$sql = $wpdb->prepare( "SELECT p.post_name FROM $wpdb->posts p WHERE p.post_type = '%s' AND p.post_status = 'publish' AND ( p.post_title LIKE '%s' OR p.post_name LIKE '%s' ) GROUP BY p.post_name", $post_type, $query . '%%', $query . '%%' ); |
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$post_slugs = $wpdb->get_col( $sql ); |
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return join( $post_slugs, PHP_EOL ); |
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} |
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|
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/** |
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* @param string $query |
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* |
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* @return string |
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*/ |
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protected function list_categories( $query ) { |
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$categories = get_terms( 'category', array( 'name__like' => $query, 'fields' => 'names', 'hide_empty' => false ) ); |
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return join( $categories, PHP_EOL ); |
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} |
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|
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/** |
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* @param string $query |
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* |
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* @return string |
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*/ |
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protected function list_post_types( $query ) { |
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$post_types = get_post_types( array( 'public' => true ), 'names' ); |
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$matched_post_types = array_filter( $post_types, function( $name ) use( $query ) { |
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return strpos( $name, $query ) === 0; |
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}); |
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|
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return join( $matched_post_types, PHP_EOL ); |
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} |
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} |
