private function wpv_get_other_parametric_filters($settings)
{
$ret = array();
$returned_post_types = isset($settings['post_type']) ? $settings['post_type'] : array();
$existing_real_parents = array_keys(wpv_recursive_post_hierarchy($returned_post_types, 4));
if (!empty($existing_real_parents)) {
$ret['relationship'] = 'relationship';
}
return $ret;
}
/**
* wpv_recursive_post_hierarchy
*
* Create a multidimensional array of Types post relationships
*
* @param $post_types (array) array of post type slugs to get the relationships from
* @param $level (int) depth of recursion, we are hardcoding limiting it to 5
*
* @return (array)
*
* @note this function is recursive
* @note the returned array has the format
* Array(
* [father] => Array(
* [grandpa-one] => Array(
* [bisa] => Array()
* )
* [grandma-one] => Array()
* )
* [mother] => Array()
* )
*
* @since 1.6.0
*/
function wpv_recursive_post_hierarchy( $post_types = array(), $level = 0 ) {
$parents_array = array();
if ( ! is_array( $post_types ) ) {
// Sometimes, when saving the Content Selection section with no post type selected, this is not an array
// That can happen when switching to list taxonomy terms or users without selecting a post type first
return $parents_array;
}
if ( function_exists( 'wpcf_pr_get_belongs' ) && $level < 5 ) {
foreach ( $post_types as $post_type_slug ) {
$this_parents = wpcf_pr_get_belongs( $post_type_slug );
if ( $this_parents != false && is_array( $this_parents ) ) {
$new_parents = array_values( array_keys( $this_parents ) );
foreach ( $new_parents as $new_parent ) {
$new_level = wpv_recursive_post_hierarchy( array( $new_parent ), $level + 1 );
$parents_array[$new_parent] = $new_level;
}
}
}
}
return $parents_array;
}
