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<?php
class FormFieldConstraintUserExist extends AbstractFormFieldConstraint
{
private $error_message;
public function __construct($error_message = '')
{
if (empty($error_message))
{
$error_message = LangLoader::get_message('user.not_exists', '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 $field->get_value() ? $this->user_exists($field) : true;
}
public function user_exists(FormField $field)
{
if ($field->get_value())
{
return PersistenceContext::get_querier()->row_exists(DB_TABLE_MEMBER, 'WHERE display_name=:display_name', array(
'display_name' => $field->get_value()
));
}
return false;
}
public function get_js_validation(FormField $field)
{
return 'UserExistValidator(' . TextHelper::to_js_string($field->get_id()) .', '. $this->error_message . ')';
}
}
?>