query-post.php
1.44 KB
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<?php
class P2P_Query_Post {
static function init() {
add_action( 'parse_query', array( __CLASS__, 'parse_query' ), 20 );
add_filter( 'posts_clauses', array( __CLASS__, 'posts_clauses' ), 20, 2 );
add_filter( 'posts_request', array( __CLASS__, 'capture' ), 999, 2 );
add_filter( 'the_posts', array( __CLASS__, 'cache_p2p_meta' ), 20, 2 );
}
static function parse_query( $wp_query ) {
$r = P2P_Query::create_from_qv( $wp_query->query_vars, 'post' );
if ( is_wp_error( $r ) ) {
$wp_query->_p2p_error = $r;
$wp_query->set( 'year', 2525 );
return;
}
if ( null === $r ) {
return;
}
list( $wp_query->_p2p_query, $wp_query->query_vars ) = $r;
$wp_query->is_home = false;
$wp_query->is_archive = true;
}
static function posts_clauses( $clauses, $wp_query ) {
global $wpdb;
if ( ! isset( $wp_query->_p2p_query ) ) {
return $clauses;
}
return $wp_query->_p2p_query->alter_clauses( $clauses, "$wpdb->posts.ID" );
}
static function capture( $request, $wp_query ) {
global $wpdb;
if ( ! isset( $wp_query->_p2p_capture ) ) {
return $request;
}
$wp_query->_p2p_sql = $request;
return '';
}
/**
* Pre-populates the p2p meta cache to decrease the number of queries.
*/
static function cache_p2p_meta( $the_posts, $wp_query ) {
if ( isset( $wp_query->_p2p_query ) && ! empty( $the_posts ) ) {
update_meta_cache( 'p2p', wp_list_pluck( $the_posts, 'p2p_id' ) );
}
return $the_posts;
}
}