127 lines
No EOL
3.7 KiB
PHP
127 lines
No EOL
3.7 KiB
PHP
<?php
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// This file is part of the Studyplan plugin for Moodle
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <https://www.gnu.org/licenses/>.
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/**
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*
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* @package local_treestudyplan
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* @copyright 2023 P.M. Kuipers
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* @license https://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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namespace local_treestudyplan;
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require_once($CFG->libdir.'/externallib.php');
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class studyitemconnection {
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const TABLE = "local_treestudyplan_connect";
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private $r;
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private $id;
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protected function __construct($r) {
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$this->r = $r;
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$this->id = $r->id;
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}
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public static function structure($value=VALUE_REQUIRED) {
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return new \external_single_structure([
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'id' => new \external_value(PARAM_INT, 'id of connection'),
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'from_id' => new \external_value(PARAM_INT, 'id of start item'),
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'to_id' => new \external_value(PARAM_INT, 'id of end item'),
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], '', $value);
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}
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public function model() {
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return ['id' => $this->r->id, 'from_id' => $this->r->from_id, 'to_id' => $this->r->to_id];
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}
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public function from_item() {
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return studyitem::findById($this->r->from_id);
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}
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public function to_item() {
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return studyitem::findById($this->r->to_id);
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}
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public function from_id() {
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return $this->r->from_id;
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}
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public function to_id() {
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return $this->r->to_id;
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}
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public static function find_outgoing($item_id) {
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global $DB;
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$list = [];
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$conn_out = $DB->get_records(self::TABLE, ['from_id' => $item_id]);
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foreach ($conn_out as $c) {
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$list[] = new self($c);
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}
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return $list;
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}
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public static function find_incoming($item_id) {
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global $DB;
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$list = [];
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$conn_in = $DB->get_records(self::TABLE, ['to_id' => $item_id]);
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foreach ($conn_in as $c) {
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$list[] = new self($c);
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}
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return $list;
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}
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public static function connect($from_id, $to_id) {
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global $DB;
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//check if link already exists.
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if (!$DB->record_exists(self::TABLE, ['from_id' => $from_id, 'to_id' => $to_id])) {
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$id = $DB->insert_record(self::TABLE, [
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'from_id' => $from_id,
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'to_id' => $to_id,
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]);
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return new self($DB->get_record(self::TABLE, ['id' => $id]));
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} else {
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return new self($DB->get_record(self::TABLE, ['from_id' => $from_id, 'to_id' => $to_id]));
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}
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}
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public static function disconnect($from_id, $to_id) {
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global $DB;
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if ($DB->record_exists(self::TABLE, ['from_id' => $from_id, 'to_id' => $to_id])) {
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$DB->delete_records(self::TABLE, [
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'from_id' => $from_id,
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'to_id' => $to_id,
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]);
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return success::success('Items Disconnected');
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} else {
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return success::success('Connection does not exist');
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}
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}
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public static function clear($id) {
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global $DB;
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$DB->delete_records(self::TABLE, ['from_id' => $id]);
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$DB->delete_records(self::TABLE, ['to_id' => $id]);
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}
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} |