/**
* Checks if the field type is a 'numeric' field type (e.g. to be used when sorting)
* @param int|array $form form ID or form array
* @param int|array $field field key or field array
* @return boolean
*/
public static function is_field_numeric($form = null, $field = '')
{
if (!is_array($form) && !is_array($field)) {
$form = self::get_form($form);
}
// If entry meta, it's a string. Otherwise, numeric
if (!is_numeric($field) && is_string($field)) {
$type = $field;
} else {
$type = self::get_field_type($form, $field);
}
/**
* @filter `gravityview/common/numeric_types` What types of fields are numeric?
* @since 1.5.2
* @param array $numeric_types Fields that are numeric. Default: `[ number, time ]`
*/
$numeric_types = apply_filters('gravityview/common/numeric_types', array('number', 'time'));
// Defer to GravityView_Field setting, if the field type is registered and `is_numeric` is true
if ($gv_field = GravityView_Fields::get($type)) {
if (true === $gv_field->is_numeric) {
$numeric_types[] = $gv_field->is_numeric;
}
}
$return = in_array($type, $numeric_types);
return $return;
}