How to use auth_post_post_type_meta_meta_key filter in WordPress

The dynamic parts of the hook name, $meta_key and $post_type, are all about the meta key and post type passed to map_meta_cap(). To get started with this filter, you’ll need to register it with add_filter. You can pop this code into your theme’s functions.php or, better yet, create a custom WordPress plugin. At WePlugins, we always recommend the plugin route to keep things smooth during theme updates.

Parameters

Here’s a rundown of the 6 parameters you’ll need for this hook:

• $allowed: (bool) Whether the user can add the post meta. Default false.
• $meta_key: (string) The meta key.
• $post_id: (int) Post ID.
• $user_id: (int) User ID.
• $cap: (string) Capability name.
• $caps: (array) User capabilities.

Live Example 1: Basic Usage

Here’s a basic example to get you started:

    function weplugins_modify_auth_post_post_type_meta_meta_key_defaults($allowed, $meta_key, $post_id, $user_id, $cap, $caps) { 
        // Update the $allowed variable according to your website requirements and return this variable.
        return $allowed; 
    }
    // add the filter
    add_filter( "auth_post_post_type_meta_meta_key", "weplugins_modify_auth_post_post_type_meta_meta_key_defaults", 10, 6 );
    

Live Example 2: Removing a Hook

Need to remove a hook callback? Check out this example:

    remove_filter( "auth_post_post_type_meta_meta_key", "weplugins_modify_auth_post_post_type_meta_meta_key_defaults", 10, 6 );
    

Remember to provide the same callback function name, priority, and number of arguments when removing the hook callback.

Live Example 3: Conditional Modification

You can also modify the $allowed variable conditionally like this:

    function weplugins_modify_auth_post_post_type_meta_meta_key_conditionally($allowed, $meta_key, $post_id, $user_id, $cap, $caps) { 
        if ($meta_key === 'special_key' && $user_id === 1) {
            $allowed = true;
        }
        return $allowed; 
    }
    add_filter( "auth_post_post_type_meta_meta_key", "weplugins_modify_auth_post_post_type_meta_meta_key_conditionally", 10, 6 );
    

Contact Us

If you’re having any trouble using this hook, feel free to Contact Us for any customization needs. We’re here to help!