Created
July 4, 2016 08:29
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| /** | |
| * Add Join to search query | |
| * Part 1 of 3 part functions to add ACF fields to search page results | |
| * | |
| * @param $join | |
| * @return mixed | |
| */ | |
| function acf_search_join( $join ) { | |
| global $wpdb; | |
| if ( is_search() && is_main_query() ) { | |
| $join .=' LEFT JOIN '.$wpdb->postmeta. ' ON '. $wpdb->posts . '.ID = ' . $wpdb->postmeta . '.post_id '; | |
| } | |
| return $join; | |
| } | |
| add_filter('posts_join', 'acf_search_join' ); | |
| /** | |
| * Add meta value to where query | |
| * Part 2 of 3 part functions to add ACF fields to search page results | |
| * | |
| * @param $where | |
| * @return mixed | |
| */ | |
| function acf_search_where( $where ) { | |
| global $pagenow, $wpdb; | |
| if ( is_search() && is_main_query() ) { | |
| $where = preg_replace( | |
| "/\(\s*".$wpdb->posts.".post_title\s+LIKE\s*(\'[^\']+\')\s*\)/", | |
| "(".$wpdb->posts.".post_title LIKE $1) OR (".$wpdb->postmeta.".meta_value LIKE $1)", $where ); | |
| //Make sure we don't find results for ACF generated meta_value -> ACF field entries | |
| $where = " AND (".$wpdb->postmeta.".meta_value NOT REGEXP 'field_[a-z0-9]{13}')" . $where; | |
| } | |
| return $where; | |
| } | |
| add_filter( 'posts_where', 'acf_search_where' ); | |
| /** | |
| * Force distinct on where query | |
| * Part 3 of 3 part functions to add ACF fields to search page results | |
| * | |
| * @param $where | |
| * @return string | |
| */ | |
| function acf_search_distinct( $where ) { | |
| global $wpdb; | |
| if ( is_search() && is_main_query() ) { | |
| return "DISTINCT"; | |
| } | |
| return $where; | |
| } | |
| add_filter( 'posts_distinct', 'acf_search_distinct' ); |
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