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<?php
class FormFieldConstraintUrlExists extends FormFieldConstraintRegex
{
private $error_message;
public function __construct($error_message = '')
{
if (empty($error_message))
{
$error_message = LangLoader::get_message('form.invalid_url', 'status-messages-common');
}
$this->set_validation_error_message($error_message);
$this->error_message = TextHelper::to_js_string($error_message);
}
public function validate(FormField $field)
{
return $this->url_is_valid($field);
}
public function url_is_valid(FormField $field)
{
$value = $field->get_value();
return !empty($value) ? Url::check_url_validity($value) : true;
}
public function get_js_validation(FormField $field)
{
return 'UrlExistsValidator(' . TextHelper::to_js_string($field->get_id()) .', '. $this->error_message . ')';
}
}
?>