Filters the unsubscribe URL generated for a contact. Use this to redirect unsubscribes through a custom preferences page.
apply_filters( 'groundhogg/unsubscribe_url', $url, $contact );
You will receive the generated URL string and the Contact object.
Example
add_filter( 'groundhogg/unsubscribe_url', 'my_extension_custom_unsub_url', 10, 2 );
/**
* Send contacts to a custom unsubscribe page.
*
* @param string $url
* @param \Groundhogg\Contact $contact
*
* @return string
*/
function my_extension_custom_unsub_url( $url, $contact ) {
return add_query_arg( [
'email' => urlencode( $contact->get_email() ),
'token' => my_extension_generate_token( $contact ),
], home_url( '/email-preferences/' ) );
}
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