…a Composer dependency. (Ensure the plugin dependencies are also installed; that may not happen automatically.) If you can’t use Composer, you can download the plugin here. This version does not include any automatic update functionality, but on the other hand, it probably doesn’t require much updating in the first place….
…implement, but this filter hook expects you to provide an absolute URL to the attachment specified by the post ID. You also need to modify relevanssi_get_attachment_posts_query and may need to modify relevanssi_get_attached_file. For a complete example (that doesn’t use this filter hook), see Making Relevanssi index WP Download Manager files….
…accessed by the current user, and Relevanssi won’t include it in the results. Examples Allow only logged-in users search everything, restrict other users to single post type Exclude protected posts from the search bbPress: Private Groups support Events Calendar: Remove past events from the search WP Download Manager: File access…