126 lines
3.6 KiB
PHP
126 lines
3.6 KiB
PHP
<?php
|
|
// This file is part of the Studyplan plugin for Moodle
|
|
//
|
|
// 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 <https://www.gnu.org/licenses/>.
|
|
/**
|
|
*
|
|
* @package local_treestudyplan
|
|
* @copyright 2023 P.M. Kuipers
|
|
* @license https://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
|
|
*/
|
|
|
|
namespace local_treestudyplan;
|
|
require_once($CFG->libdir.'/externallib.php');
|
|
|
|
class studyitemconnection {
|
|
|
|
const TABLE = "local_treestudyplan_connect";
|
|
|
|
private $r;
|
|
private $id;
|
|
|
|
protected function __construct($r) {
|
|
$this->r = $r;
|
|
$this->id = $r->id;
|
|
}
|
|
|
|
public static function structure($value=VALUE_REQUIRED) {
|
|
return new \external_single_structure([
|
|
'id' => new \external_value(PARAM_INT, 'id of connection'),
|
|
'from_id' => new \external_value(PARAM_INT, 'id of start item'),
|
|
'to_id' => new \external_value(PARAM_INT, 'id of end item'),
|
|
], '', $value);
|
|
}
|
|
|
|
public function model() {
|
|
return ['id' => $this->r->id, 'from_id' => $this->r->from_id, 'to_id' => $this->r->to_id];
|
|
}
|
|
|
|
public function from_item() {
|
|
return studyitem::findById($this->r->from_id);
|
|
}
|
|
|
|
public function to_item() {
|
|
return studyitem::findById($this->r->to_id);
|
|
}
|
|
|
|
public function from_id() {
|
|
return $this->r->from_id;
|
|
}
|
|
|
|
public function to_id() {
|
|
return $this->r->to_id;
|
|
}
|
|
|
|
public static function find_outgoing($itemid) {
|
|
global $DB;
|
|
$list = [];
|
|
$connout = $DB->get_records(self::TABLE, ['from_id' => $itemid]);
|
|
foreach ($connout as $c) {
|
|
$list[] = new self($c);
|
|
}
|
|
return $list;
|
|
}
|
|
|
|
public static function find_incoming($itemid) {
|
|
global $DB;
|
|
$list = [];
|
|
$connin = $DB->get_records(self::TABLE, ['to_id' => $itemid]);
|
|
foreach ($connin as $c) {
|
|
$list[] = new self($c);
|
|
}
|
|
return $list;
|
|
}
|
|
|
|
public static function connect($fromid, $toid) {
|
|
global $DB;
|
|
|
|
//check if link already exists.
|
|
|
|
if (!$DB->record_exists(self::TABLE, ['from_id' => $fromid, 'to_id' => $toid])) {
|
|
$id = $DB->insert_record(self::TABLE, [
|
|
'from_id' => $fromid,
|
|
'to_id' => $toid,
|
|
]);
|
|
|
|
return new self($DB->get_record(self::TABLE, ['id' => $id]));
|
|
|
|
} else {
|
|
return new self($DB->get_record(self::TABLE, ['from_id' => $fromid, 'to_id' => $toid]));
|
|
}
|
|
}
|
|
|
|
public static function disconnect($fromid, $toid) {
|
|
global $DB;
|
|
|
|
if ($DB->record_exists(self::TABLE, ['from_id' => $fromid, 'to_id' => $toid])) {
|
|
$DB->delete_records(self::TABLE, [
|
|
'from_id' => $fromid,
|
|
'to_id' => $toid,
|
|
]);
|
|
|
|
return success::success('Items Disconnected');
|
|
} else {
|
|
return success::success('Connection does not exist');
|
|
}
|
|
}
|
|
|
|
public static function clear($id) {
|
|
global $DB;
|
|
$DB->delete_records(self::TABLE, ['from_id' => $id]);
|
|
$DB->delete_records(self::TABLE, ['to_id' => $id]);
|
|
}
|
|
|
|
}
|