Excluding post type from WordPress link builder

2 comments

1. Versions <= 3.6.1

   It looks like the function wp_link_query() is used to display the internal posts/pages when you press the Or link to existing content in the “link builder”:

   

   wp_link_query() is defined in /wp-includes/class-wp-editor.php.

   It is queried via the wp_ajax_wp_link_ajax(), defined in the file /wp-admin/includes/ajax-actions.php.

   These functions don’t have any explicit filters to change the query.

   Version 3.7 (?)

   It looks like there are patches on the way introducing the filter wp_link_query_args

   You can check it out here:

   http://core.trac.wordpress.org/ticket/18042

   The milestone is set as 3.7, so this might be your lucky version 😉

   If that’s the case, then you might probably fix this with:

   Example 1:

   If you want to list the custom post types by hand:

   /**
    * Filter the link query arguments to change the post types. 
    *
    * @param array $query An array of WP_Query arguments. 
    * @return array $query
    */
   function my_custom_link_query( $query ){
   
       // change the post types by hand:
       $query['post_type'] = array( 'post', 'pages' );  // Edit this to your needs
   
       return $query; 
   }
   
   add_filter( 'wp_link_query_args', 'my_custom_link_query' );
   

   Example 2:

   If you only want to eliminate a single custom post type, but keep all the others, then you can try:

   /**
    * Filter the link query arguments to change the post types. 
    *
    * @param array $query An array of WP_Query arguments. 
    * @return array $query
    */
   function my_custom_link_query( $query ){
   
       // custom post type slug to be removed
       $cpt_to_remove = 'news';      // Edit this to your needs
   
       // find the corresponding array key
       $key = array_search( $cpt_to_remove, $query['post_type'] ); 
   
       // remove the array item
       if( $key )
           unset( $query['post_type'][$key] );
   
       return $query; 
   }
   
   add_filter( 'wp_link_query_args', 'my_custom_link_query' );
   

   where I used the demo slug 'news'.

2. And here’s how you would remove an array of post types from the edit link dialog:

   function removeCustomPostTypesFromTinyMCELinkBuilder($query){
       $key = false;
   
       $cpt_to_remove = array(
           'cpt_one',
           'cpt_two',
           'cpt_three'
       );
   
       foreach ($cpt_to_remove as $custom_post_type) {
           $key = array_search($custom_post_type, $query['post_type']);
           if($key){
               unset($query['post_type'][$key]);
           } 
       }
       return $query; 
   }
   add_filter( 'wp_link_query_args', 'removeCustomPostTypesFromTinyMCELinkBuilder' );
   

Comments are closed.