Current File : /home/vacivi36/ava/question/classes/bank/search/condition.php
<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Defines an abstract class for filtering/searching the question bank.
*
* @package core_question
* @copyright 2013 Ray Morris
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
namespace core_question\bank\search;
/**
* An abstract class for filtering/searching questions.
*
* See also {@see question_bank_view::init_search_conditions()}.
* @copyright 2013 Ray Morris
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
abstract class condition {
/**
* Return an SQL fragment to be ANDed into the WHERE clause to filter which questions are shown.
* @return string SQL fragment. Must use named parameters.
*/
abstract public function where();
/**
* Return parameters to be bound to the above WHERE clause fragment.
* @return array parameter name => value.
*/
public function params() {
return [];
}
/**
* Display GUI for selecting criteria for this condition. Displayed when Show More is open.
*
* Compare display_options(), which displays always, whether Show More is open or not.
* @return bool|string HTML form fragment
*/
public function display_options_adv() {
return false;
}
/**
* Display GUI for selecting criteria for this condition. Displayed always, whether Show More is open or not.
*
* Compare display_options_adv(), which displays when Show More is open.
* @return bool|string HTML form fragment
*/
public function display_options() {
return false;
}
}
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