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1. tiagommorena
   Member
   Posted 2 years ago #

   Hello,

   I´m developing a theme with search and I can´t make the wordpress search work with the ZdMultilang translated fields, it only searchs the original post.

   I switch languages in the backend of ZdMultilang and I was able to search in the translated language, (it became the main language), but the now translated language returned no results.

   I research a lot in the web and found a function in wordpress codex to append a plugin table to the wpdb post search. It´s down bellow here:

   add_filter('posts_join', 'mlang_search_join' );
   add_filter('posts_where', 'mlang_search_where' );
   add_filter('posts_groupby', 'mlang_search_groupby' );
   
   function mlang_search_join($join)
   {
     global $zd_ml_trans, $wpdb;
     if(is_search()) {
         $join .= " LEFT JOIN $zd_ml_trans ON " .
          $wpdb->posts . ".ID = " . $zd_ml_trans .
          ".post_content ";
     }
     return $join;
   }
   
   function multilang_search_where($where)
   {
     if( is_search() ) {
       $where = preg_replace(
          "/\(\s*post_title\s+LIKE\s*(\'[^\']+\')\s*\)/",
          "(post_title LIKE \\1) OR (post_content LIKE \\1) OR (post_excerpt LIKE \\1) OR (post_status LIKE \\1)", $where );
   
      }
     return $where;
   }
   
   function multilang_search_groupby( $groupby )
   {
     global $wpdb;
   
     if( !is_search() ) {
       return $groupby;
     }
     // we need to group on post ID
     $mygroupby = "{$wpdb->posts}.ID";
     if( preg_match( "/$mygroupby/", $groupby )) {
       // grouping we need is already there
       return $groupby;
     }
     if( !strlen(trim($groupby))) {
       // groupby was empty, use ours
       return $mygroupby;
     }
     // wasn't empty, append ours
     return $groupby . ", " . $mygroupby;
   }

   I don´t know why this is not working, but I would really appreciate any help on this matter. With the Search Everything sometimes it returns a result sometimes don´t.

   Also, I noticed when you perform a search, you can´t switch languages. It would be nice to have a function to add that change to the plugin.

   Tiago Morena

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