Files
moodle/question/classes/external.php
2016-03-18 15:08:17 +01:00

118 lines
4.1 KiB
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/>.
/**
* External question API
*
* @package core_question
* @category external
* @copyright 2016 Pau Ferrer <pau@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
require_once("$CFG->libdir/externallib.php");
require_once($CFG->dirroot . '/question/engine/lib.php');
/**
* Question external functions
*
* @package core_question
* @category external
* @copyright 2016 Pau Ferrer <pau@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
* @since Moodle 3.1
*/
class core_question_external extends external_api {
/**
* Returns description of method parameters
*
* @return external_function_parameters
* @since Moodle 3.1
*/
public static function update_flag_parameters() {
return new external_function_parameters(
array(
'qubaid' => new external_value(PARAM_INT, 'the question usage id.'),
'questionid' => new external_value(PARAM_INT, 'the question id'),
'qaid' => new external_value(PARAM_INT, 'the question_attempt id'),
'slot' => new external_value(PARAM_INT, 'the slot number within the usage'),
'checksum' => new external_value(PARAM_ALPHANUM, 'computed checksum with the last three arguments and
the users username'),
'newstate' => new external_value(PARAM_BOOL, 'the new state of the flag. true = flagged')
)
);
}
/**
* Update the flag state of a question attempt.
*
* @param int $qubaid the question usage id.
* @param int $questionid the question id.
* @param int $qaid the question_attempt id.
* @param int $slot the slot number within the usage.
* @param string $checksum checksum, as computed by {@link get_toggle_checksum()}
* corresponding to the last three arguments and the users username.
* @param bool $newstate the new state of the flag. true = flagged.
* @return array (success infos and fail infos)
* @since Moodle 3.1
*/
public static function update_flag($qubaid, $questionid, $qaid, $slot, $checksum, $newstate) {
global $CFG, $DB;
$params = self::validate_parameters(self::update_flag_parameters(),
array(
'qubaid' => $qubaid,
'questionid' => $questionid,
'qaid' => $qaid,
'slot' => $slot,
'checksum' => $checksum,
'newstate' => $newstate
)
);
$warnings = array();
// Check user is logged in.
require_login(null, false, null, false, true);
// The checksum will be checked to provide security flagging other users questions.
question_flags::update_flag($params['qubaid'], $params['questionid'], $params['qaid'], $params['slot'], $params['checksum'],
$params['newstate']);
$result = array();
$result['status'] = true;
$result['warnings'] = $warnings;
return $result;
}
/**
* Returns description of method result value
*
* @return external_description
* @since Moodle 3.1
*/
public static function update_flag_returns() {
return new external_single_structure(
array(
'status' => new external_value(PARAM_BOOL, 'status: true if success'),
'warnings' => new external_warnings()
)
);
}
}