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<?php
class FormFieldConstraintDisplayNameExists extends AbstractFormFieldConstraint
{
private $user_id = 0;
private $error_message;
public function __construct($user_id = 0, $error_message = '')
{
if (!empty($user_id))
{
$this->user_id = $user_id;
}
if (empty($error_message))
{
$error_message = LangLoader::get_message('e_display_name_auth', 'errors');
}
$this->set_validation_error_message($error_message);
$this->error_message = TextHelper::to_js_string($error_message);
}
public function validate(FormField $field)
{
return !$this->display_name_exists($field);
}
public function display_name_exists(FormField $field)
{
if (!empty($this->user_id))
{
return PersistenceContext::get_querier()->row_exists(DB_TABLE_MEMBER, 'WHERE display_name=:display_name AND user_id != :user_id', array(
'display_name' => $field->get_value(),
'user_id' => $this->user_id
));
}
else if ($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 $field)
{
return 'DisplayNameExistValidator(' . TextHelper::to_js_string($field->get_id()) .', '. $this->error_message . ', ' . $this->user_id . ')';
}
}
?>