apply_filters( “rest_{$this->post_type}_query”, array $args, WP_REST_Request $request )

User Contributed Notes

1. Skip to note 3 content

   Haris 7 years ago

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   Code example:

   function query_book_by_year($args, $request) {
   	if(isset($request["year"]) && intval($request["year"]) > 1500) {
   		$args['meta_key'] = 'year';
   		$args['meta_value'] = intval($request["year"]);
   	}		
   
   	return $args;
   }
   add_filter('rest_book_query', 'query_book_by_year', 10, 2);
2. Skip to note 4 content

   Yan Sern 5 years ago

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   I wanted to see the SQL generated from the filters I’ve added. However, using &debug=sql on the http request parameter didn’t work for me.

   You can set a breakpoint at line 299 (at least at the time of writing) under class-wp-rest-posts-controller.php@get_items() method, which looks like this:

   $posts_query  = new WP_Query(); // line 298
   $query_result = $posts_query->query( $query_args ); // line 299

   Or if you don’t have a debugger setup yet, you can do:

   $posts_query  = new WP_Query();
   $query_result = $posts_query->query( $query_args );
   echo $posts_query->request;
   exit;