Hooks
Slim SEO Link Manager provides some hooks for developers to extend the functionality of the plugin.
Filters​
slim_seo_link_manager_post_types​
This filer allows you to ignore some post types when scanning links. It accepts one parameter - an array of allowed post type objects (with key is the post type slug and value is the post type object) and returns an array.
add_filter( 'slim_seo_link_manager_post_types', function ( $post_types ) {
unset( $post_types['movies'] );
return $post_types;
} );
slim_seo_link_manager_link_suggestions_args​
This filter allows you to change the post query for getting suggested posts.
add_filter( 'slim_seo_link_manager_link_suggestions_args', function( $args ) {
$args['cat'] = 12;
return $args;
} );
slim_seo_link_manager_search_args​
This filter allows you to change the post query for searching posts.
add_filter( 'slim_seo_link_manager_search_args', function( $args ) {
$args['cat'] = 12;
return $args;
} );
slim_seo_link_manager_post_custom_fields​
This filter allows you to add custom fields' content to the plugin's scanner.
add_filter( 'slim_seo_link_manager_post_custom_fields', function( $fields ) {
$fields[] = 'my-text-field';
return $fields;
} );
After running this filter, the plugin will get the content of the custom field (in the example above, the meta key of the custom field is my-text-field) and analyze that content to find links and add to the reports.
slim_seo_link_manager_process_url​
This filter allows you to bypass a URL, e.g. not including it in the reports. It's helpful if you want to keep the reports clean and don't want it to contain links like affiliate links.
add_filter( 'slim_seo_link_manager_process_url', function( $process, $url ) {
if ( strpos( $url, 'amz.co' ) !== false ) {
$process = false;
}
return $process;
} );
slim_seo_link_manager_text​
This filter allows you to change the content to be analyzed for links. Normally it's the post content, but you can add anything you want (like custom static text, or content from a complex custom field group).
add_filter( 'slim_seo_link_manager_text', function( $text, $post_id ) {
// Your custom text that you want to add to the analyzer.
$your_text = '';
$text .= $your_text;
return $text;
}, 20, 2 );