761 lines
27 KiB
PHP
761 lines
27 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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defined('MOODLE_INTERNAL') || die();
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require_once($CFG->libdir.'/externallib.php');
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class studyplan {
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/** @var string */
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const TABLE = "local_treestudyplan";
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private static $studyplancache = [];
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/**
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* Holds database record
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* @var stdClass
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*/
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private $r;
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/** @var int */
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private $id;
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/** @var aggregator */
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private $aggregator;
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private $context = null; // Hold context object once retrieved.
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private $linkeduserids = null; // Cache lookup of linked users (saves queries).
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/** @var studyplanpage[] */
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private $pagecache = null;
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public function aggregator() {
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return $this->aggregator;
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}
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// Cache constructors to avoid multiple creation events in one session.
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/**
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* Find record in database and return management object
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* @param int $id Id of database record
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* @return self
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*/
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public static function find_by_id($id): self {
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if (!array_key_exists($id, self::$studyplancache)) {
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self::$studyplancache[$id] = new self($id);
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}
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return self::$studyplancache[$id];
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}
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/**
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* Construct new instance from DB record
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* @param int $id Id of database record
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*/
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private function __construct($id) {
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global $DB;
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$this->id = $id;
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$this->r = $DB->get_record(self::TABLE, ['id' => $id]);
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$this->aggregator = aggregator::create_or_default($this->r->aggregation, $this->r->aggregation_config);
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}
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/**
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* Return database identifier
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* @return int
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*/
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public function id() {
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return $this->id;
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}
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/**
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* Return short name
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* @return string
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*/
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public function shortname() {
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return $this->r->shortname;
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}
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/**
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* Return full name
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* @return string
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*/
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public function name() {
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return $this->r->name;
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}
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public function pages() {
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// Cached version of find_studyplan_children.
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// (may be premature optimization, since .
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// Find_studyplan_children also does some caching).
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if (empty($this->page_cache)) {
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$this->page_cache = studyplanpage::find_studyplan_children($this);
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}
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return $this->page_cache;
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}
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/**
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* Return the context the studyplan is associated to
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* @return \context
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*/
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public function context(): \context {
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if (!isset($this->context)) {
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try {
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$this->context = contextinfo::by_id($this->r->context_id)->context;
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} catch (\dml_missing_record_exception $x) {
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// Just throw it up again. catch is included here to make sure we know it throws this exception.
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throw new \InvalidArgumentException(
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"Context {$this->r->context_id} not available");
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}
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}
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return $this->context;
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}
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/**
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* Webservice structure for basic info
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* @param int $value Webservice requirement constant
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* @return \external_description Webservice output structure
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*/
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public static function simple_structure($value = VALUE_REQUIRED) {
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return new \external_single_structure([
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"id" => new \external_value(PARAM_INT, 'id of studyplan'),
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"name" => new \external_value(PARAM_TEXT, 'name of studyplan'),
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"shortname" => new \external_value(PARAM_TEXT, 'shortname of studyplan'),
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"idnumber" => new \external_value(PARAM_TEXT, 'idnumber of curriculum'),
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"context_id" => new \external_value(PARAM_INT, 'context_id of studyplan'),
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"description" => new \external_value(PARAM_TEXT, 'description of studyplan'),
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"aggregation" => new \external_value(PARAM_TEXT, 'selected aggregator'),
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"aggregation_config" => new \external_value(PARAM_TEXT, 'config string for aggregator'),
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"aggregation_info" => aggregator::basic_structure(),
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"pages" => new \external_multiple_structure(studyplanpage::simple_structure(), 'pages'),
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], 'Basic studyplan info', $value);
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}
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/**
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* Webservice model for basic info
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* @return array Webservice data model
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*/
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public function simple_model() {
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$pages = [];
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foreach ($this->pages() as $p) {
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$pages[] = $p->simple_model();
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}
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return [
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'id' => $this->r->id,
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'name' => $this->r->name,
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'shortname' => $this->r->shortname,
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'idnumber' => $this->r->idnumber,
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'context_id' => $this->context()->id,
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'description' => $this->r->description,
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'aggregation' => $this->r->aggregation,
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'aggregation_config' => $this->aggregator->config_string(),
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'aggregation_info' => $this->aggregator->basic_model(),
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'pages' => $pages,
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];
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}
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/**
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* Webservice structure for editor info
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* @param int $value Webservice requirement constant
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* @return \external_single_structure Webservice output structure
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*/
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public static function editor_structure($value = VALUE_REQUIRED) {
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return new \external_single_structure([
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"id" => new \external_value(PARAM_INT, 'id of studyplan'),
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"name" => new \external_value(PARAM_TEXT, 'name of studyplan'),
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"shortname" => new \external_value(PARAM_TEXT, 'shortname of studyplan'),
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"idnumber" => new \external_value(PARAM_TEXT, 'idnumber of curriculum'),
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"description" => new \external_value(PARAM_TEXT, 'description of studyplan'),
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"context_id" => new \external_value(PARAM_INT, 'context_id of studyplan'),
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"aggregation" => new \external_value(PARAM_TEXT, 'selected aggregator'),
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"aggregation_config" => new \external_value(PARAM_TEXT, 'config string for aggregator'),
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"aggregation_info" => aggregator::basic_structure(),
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"pages" => new \external_multiple_structure(studyplanpage::editor_structure()),
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"advanced" => new \external_single_structure([
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"force_scales" => new \external_single_structure([
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"scales" => new \external_multiple_structure(new \external_single_structure([
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"id" => new \external_value(PARAM_INT, 'id of scale'),
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"name" => new \external_value(PARAM_TEXT, 'name of scale'),
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])),
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], "Scale forcing on stuff", VALUE_OPTIONAL),
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], "Advanced features available", VALUE_OPTIONAL),
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], 'Studyplan full structure', $value);
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}
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/**
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* Webservice model for editor info
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* @return array Webservice data model
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*/
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public function editor_model() {
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global $DB;
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$model = [
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'id' => $this->r->id,
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'name' => $this->r->name,
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'shortname' => $this->r->shortname,
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'idnumber' => $this->r->idnumber,
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'description' => $this->r->description,
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'context_id' => $this->context()->id,
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"aggregation" => $this->r->aggregation,
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"aggregation_config" => $this->aggregator->config_string(),
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'aggregation_info' => $this->aggregator->basic_model(),
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'pages' => [],
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];
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foreach ($this->pages() as $p) {
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$model['pages'][] = $p->editor_model();
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}
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if (has_capability('local/treestudyplan:forcescales', \context_system::instance())) {
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if (!array_key_exists('advanced', $model)) {
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// Create advanced node if it does not exist.
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$model['advanced'] = [];
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}
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// Get a list of available scales.
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$scales = array_map( function($scale) {
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return [ "id" => $scale->id, "name" => $scale->name, ];
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}, \grade_scale::fetch_all(['courseid' => 0]) );
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$model['advanced']['force_scales'] = [
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'scales' => $scales,
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];
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}
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return $model;
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}
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public static function add($fields, $bare = false) {
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global $CFG, $DB;
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$addable = ['name', 'shortname', 'description', 'idnumber', 'context_id', 'aggregation', 'aggregation_config'];
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$info = ['enddate' => null ];
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foreach ($addable as $f) {
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if (array_key_exists($f, $fields)) {
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$info[$f] = $fields[$f];
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}
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}
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$id = $DB->insert_record(self::TABLE, $info);
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$plan = self::find_by_id($id); // Make sure the new studyplan is immediately cached.
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// Start temporary skräpp code.
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// Add a single page and copy the names.This keeps the data sane until the upgrade to .
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// Real page management is done.
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// On import, adding an empty page messes things up for now, so we have an option to skip this....
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// TODO: Remove this when proper page management is implemented.
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if (!$bare) {
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$pageaddable = ['name', 'shortname', 'description', 'periods', 'startdate', 'enddate'];
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$pageinfo = ['studyplan_id' => $id];
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foreach ($pageaddable as $f) {
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if (array_key_exists($f, $fields)) {
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if ($f == "name") {
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$pageinfo["fullname"] = $fields[$f];
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} else {
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$pageinfo[$f] = $fields[$f];
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}
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}
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}
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$page = studyplanpage::add($pageinfo);
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$plan->page_cache = [$page];
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}
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// End temporary skräpp code.
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return $plan;
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}
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public function edit($fields) {
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global $DB;
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$editable = ['name', 'shortname', 'description', 'idnumber', 'context_id', 'aggregation', 'aggregation_config'];
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$info = ['id' => $this->id, ];
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foreach ($editable as $f) {
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if (array_key_exists($f, $fields)) {
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$info[$f] = $fields[$f];
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}
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}
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$DB->update_record(self::TABLE, $info);
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// Reload record after edit.
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$this->r = $DB->get_record(self::TABLE, ['id' => $this->id], "*", MUST_EXIST);
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// Reload the context...
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$this->context = null;
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$this->context();
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// Reload aggregator.
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$this->aggregator = aggregator::create_or_default($this->r->aggregation, $this->r->aggregation_config);
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// Start temporary skräpp code.
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// TODO: Until proper page editing is implemented, copy data from studyplan to it's first page.
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// This keeps the data sane until the upgrade is done.
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if (count($this->pages()) == 1) {
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// Update the info to the page as well.
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$page = $this->pages()[0];
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$pageeditable = ['name', 'shortname', 'description', 'periods', 'startdate', 'enddate'];
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$pageinfo = [];
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foreach ($pageeditable as $f) {
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if (array_key_exists($f, $fields)) {
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if ($f == "name") {
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$pageinfo["fullname"] = $fields[$f];
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} else {
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$pageinfo[$f] = $fields[$f];
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}
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}
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}
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$page->edit($pageinfo);
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}
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// End temporary skräpp code.
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return $this;
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}
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public function delete($force = false) {
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global $DB;
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if ($force) {
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$children = studyplanpage::find_studyplan_children($this);
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foreach ($children as $c) {
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$c->delete($force);
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}
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}
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if ($DB->count_records('local_treestudyplan_page', ['studyplan_id' => $this->id]) > 0) {
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return success::fail('cannot delete studyplan that still has pages');
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} else {
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$DB->delete_records('local_treestudyplan', ['id' => $this->id]);
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return success::success();
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}
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}
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public static function find_all($contextid = -1) {
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global $DB, $USER;
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$list = [];
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if ($contextid <= 0) {
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$ids = $DB->get_fieldset_select(self::TABLE, "id", "");
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} else {
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if ($contextid == 1) {
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$contextid = 1;
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$where = "context_id <= :contextid OR context_id IS NULL";
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} else {
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$where = "context_id = :contextid";
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}
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$ids = $DB->get_fieldset_select(self::TABLE, "id", $where, ["contextid" => $contextid]);
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}
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foreach ($ids as $id) {
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$list[] = self::find_by_id($id);
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}
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return $list;
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}
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public static function find_by_shortname($shortname, $contextid = 0): array {
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global $DB;
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$list = [];
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$where = "shortname = :shortname AND context_id = :contextid";
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if ($contextid == 0) {
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$where .= "OR context_id IS NULL";
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}
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$ids = $DB->get_fieldset_select(self::TABLE, "id", $where, ["shortname" => $shortname, "contextid" => $contextid]);
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foreach ($ids as $id) {
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$list[] = self::find_by_id($id);
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}
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return $list;
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}
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public static function find_for_user($userid) {
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global $DB;
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$sql = "SELECT s.id FROM {local_treestudyplan} s
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INNER JOIN {local_treestudyplan_cohort} j ON j.studyplan_id = s.id
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INNER JOIN {cohort_members} cm ON j.cohort_id = cm.cohortid
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WHERE cm.userid = :userid";
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$cohortplanids = $DB->get_fieldset_sql($sql, ['userid' => $userid]);
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$sql = "SELECT s.id FROM {local_treestudyplan} s
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INNER JOIN {local_treestudyplan_user} j ON j.studyplan_id = s.id
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WHERE j.user_id = :userid";
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$userplanids = $DB->get_fieldset_sql($sql, ['userid' => $userid]);
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$plans = [];
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foreach ($cohortplanids as $id) {
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$plans[$id] = self::find_by_id($id);
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}
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foreach ($userplanids as $id) {
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if (!array_key_exists($id, $plans)) {
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$plans[$id] = self::find_by_id($id);
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}
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}
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return $plans;
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}
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public static function exist_for_user($userid) {
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global $DB;
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$count = 0;
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$sql = "SELECT s.* FROM {local_treestudyplan} s
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INNER JOIN {local_treestudyplan_cohort} j ON j.studyplan_id = s.id
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INNER JOIN {cohort_members} cm ON j.cohort_id = cm.cohortid
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WHERE cm.userid = :userid";
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$count += $DB->count_records_sql($sql, ['userid' => $userid]);
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$sql = "SELECT s.* FROM {local_treestudyplan} s
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INNER JOIN {local_treestudyplan_user} j ON j.studyplan_id = s.id
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WHERE j.user_id = :userid";
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$count += $DB->count_records_sql($sql, ['userid' => $userid]);
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return ($count > 0);
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}
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/**
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* Retrieve the users linked to this studyplan.
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* @return array of User objects
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*/
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public function find_linked_users() {
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global $DB;
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$users = [];
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$uids = $this->find_linked_userids();
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foreach ($uids as $uid) {
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$users[] = $DB->get_record("user", ["id" => $uid]);
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}
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return $users;
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}
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/**
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* Retrieve the user id's of the users linked to this studyplan.
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* @return array of int (User Id)
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*/
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public function find_linked_userids(): array {
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global $DB;
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if ($this->linked_userids === null) {
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$uids = [];
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// First get directly linked userids.
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$sql = "SELECT j.user_id FROM {local_treestudyplan_user} j
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WHERE j.studyplan_id = :planid";
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$ulist = $DB->get_fieldset_sql($sql, ['planid' => $this->id]);
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$uids = array_merge($uids, $ulist);
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foreach ($ulist as $uid) {
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$users[] = $DB->get_record("user", ["id" => $uid]);
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}
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// Next het users linked though cohort.
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$sql = "SELECT cm.userid FROM {local_treestudyplan_cohort} j
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INNER JOIN {cohort_members} cm ON j.cohort_id = cm.cohortid
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WHERE j.studyplan_id = :planid";
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$ulist = $DB->get_fieldset_sql($sql, ['planid' => $this->id]);
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$uids = array_merge($uids, $ulist);
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$this->linked_userids = array_unique($uids);
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}
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return $this->linked_userids;
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}
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/** Check if this studyplan is linked to a particular user
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* @param bool|stdClass $user The userid or user record of the user
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*/
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public function has_linked_user($user) {
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if (is_int($user)) {
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$userid = $user;
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} else {
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$userid = $user->id;
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}
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$uids = $this->find_linked_userids();
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if (in_array($userid, $uids)) {
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return true;
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} else {
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return false;
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}
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}
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/**
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* Webservice structure for userinfo
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* @param int $value Webservice requirement constant
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* @return \external_single_structure Webservice output structure
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*/
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public static function user_structure($value = VALUE_REQUIRED) {
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return new \external_single_structure([
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"id" => new \external_value(PARAM_INT, 'id of studyplan'),
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|
"name" => new \external_value(PARAM_TEXT, 'name of studyplan'),
|
|
"shortname" => new \external_value(PARAM_TEXT, 'shortname of studyplan'),
|
|
"description" => new \external_value(PARAM_TEXT, 'description of studyplan'),
|
|
"idnumber" => new \external_value(PARAM_TEXT, 'idnumber of curriculum'),
|
|
"pages" => new \external_multiple_structure(studyplanpage::user_structure()),
|
|
"aggregation_info" => aggregator::basic_structure(),
|
|
], 'Studyplan with user info', $value);
|
|
|
|
}
|
|
|
|
/**
|
|
* Webservice model for user info
|
|
* @param int $userid ID of user to check specific info for
|
|
* @return array Webservice data model
|
|
*/
|
|
public function user_model($userid) {
|
|
|
|
$model = [
|
|
'id' => $this->r->id,
|
|
'name' => $this->r->name,
|
|
'shortname' => $this->r->shortname,
|
|
'description' => $this->r->description,
|
|
'idnumber' => $this->r->idnumber,
|
|
'pages' => [],
|
|
'aggregation_info' => $this->aggregator->basic_model(),
|
|
];
|
|
|
|
foreach ($this->pages() as $p) {
|
|
$model['pages'][] = $p->user_model($userid);
|
|
}
|
|
return $model;
|
|
}
|
|
|
|
public static function duplicate_plan($planid, $name, $shortname) {
|
|
$ori = self::find_by_id($planid);
|
|
$new = $ori->duplicate($name, $shortname);
|
|
return $new->simple_model();
|
|
}
|
|
|
|
public function duplicate($name, $shortname) {
|
|
// First duplicate the studyplan structure.
|
|
$newplan = self::add([
|
|
'name' => $name,
|
|
'shortname' => $shortname,
|
|
'description' => $this->r->description,
|
|
]);
|
|
|
|
// Next, copy the studylines.
|
|
|
|
foreach ($this->pages() as $p) {
|
|
$newchild = $p->duplicate($newplan);
|
|
}
|
|
|
|
return $newplan;
|
|
}
|
|
|
|
/**
|
|
* Description of export structure for webservices
|
|
* @return \external_description
|
|
*/
|
|
public static function export_structure() {
|
|
return new \external_single_structure([
|
|
"format" => new \external_value(PARAM_TEXT, 'format of studyplan export'),
|
|
"content" => new \external_value(PARAM_TEXT, 'exported studyplan content'),
|
|
], 'Exported studyplan');
|
|
}
|
|
|
|
public function export_plan() {
|
|
$model = $this->export_model();
|
|
$json = json_encode([
|
|
"type" => "studyplan",
|
|
"version" => 2.0,
|
|
"studyplan" => $model
|
|
], \JSON_PRETTY_PRINT);
|
|
return [ "format" => "application/json", "content" => $json];
|
|
}
|
|
|
|
/**
|
|
* Export essential information for export
|
|
* @return array information model
|
|
*/
|
|
public function export_model() {
|
|
$model = [
|
|
'name' => $this->r->name,
|
|
'shortname' => $this->r->shortname,
|
|
'description' => $this->r->description,
|
|
"aggregation" => $this->r->aggregation,
|
|
"aggregation_config" => json_decode($this->aggregator->config_string()),
|
|
'aggregation_info' => $this->aggregator->basic_model(),
|
|
'pages' => $this->export_pages_model(),
|
|
];
|
|
return $model;
|
|
}
|
|
|
|
/**
|
|
* Export all pages
|
|
* @return array information model
|
|
*/
|
|
public function export_pages_model() {
|
|
$pages = [];
|
|
foreach ($this->pages() as $p) {
|
|
$pages[] = $p->export_model();
|
|
}
|
|
return $pages;
|
|
}
|
|
|
|
public static function import_studyplan($content, $format = "application/json", $contextid = 1) {
|
|
if ($format != "application/json") {
|
|
return false;
|
|
}
|
|
|
|
$content = json_decode($content, true);
|
|
if ($content["type"] == "studyplan" && $content["version"] >= 2.0) {
|
|
|
|
// Make sure the aggregation_config is re-encoded as json text.
|
|
$content["studyplan"]["aggregation_config"] = json_encode($content["studyplan"]["aggregation_config"]);
|
|
|
|
// And make sure the context_id is set to the provided context for import.
|
|
$content["studyplan"]["context_id"] = $contextid;
|
|
|
|
// Create a new plan, based on the given parameters - this is the import studyplan part.
|
|
$plan = self::add($content["studyplan"], true);
|
|
// Now import each page.
|
|
return $plan->import_pages_model($content["studyplan"]["pages"]);
|
|
|
|
} else {
|
|
debugging("Invalid format and type: {$content['type']} version {$content['version']}");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
public function import_pages($content, $format = "application/json") {
|
|
if ($format != "application/json") {
|
|
return false;
|
|
}
|
|
$content = json_decode($content, true);
|
|
if ($content["version"] >= 2.0) {
|
|
if ($content["type"] == "studyplanpage") {
|
|
// Import single page from a studyplanpage (wrapped in array of one page).
|
|
return $this->import_pages_model([$content["page"]]);
|
|
} else if ($content["type"] == "studyplan") {
|
|
// Import all pages from the studyplan.
|
|
return $this->import_pages_model($content["studyplan"]["pages"]);
|
|
}
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
protected function import_pages_model($model) {
|
|
$this->pages(); // Make sure the page cache is initialized, since we will be adding to it.
|
|
foreach ($model as $p) {
|
|
$p["studyplan_id"] = $this->id();
|
|
$page = studyplanpage::add($p);
|
|
$this->page_cache[] = $page;
|
|
$page->import_periods_model($p["perioddesc"]);
|
|
$page->import_studylines_model($p["studylines"]);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Mark the studyplan as changed regarding courses and associated cohorts
|
|
*/
|
|
public function mark_csync_changed() {
|
|
global $DB;
|
|
$DB->update_record(self::TABLE, ['id' => $this->id, "csync_flag" => 1]);
|
|
// Manually set it in the cache, if something unexpected happened, an exception has already been thrown anyway.
|
|
$this->r->csync_flag = 1;
|
|
}
|
|
|
|
/**
|
|
* Clear the csync mark
|
|
*/
|
|
public function clear_csync_changed() {
|
|
global $DB;
|
|
$DB->update_record(self::TABLE, ['id' => $this->id, "csync_flag" => 0]);
|
|
// Manually set it in the cache, if something unexpected happened, an exception has already been thrown anyway.
|
|
$this->r->csync_flag = 0;
|
|
}
|
|
|
|
public function has_csync_changed() {
|
|
return ($this->r->csync_flag > 0) ? true : false;
|
|
}
|
|
|
|
/**
|
|
* See if the specified course id is linked in this studyplan
|
|
*/
|
|
public function course_linked($courseid) {
|
|
global $DB;
|
|
|
|
$sql = "SELECT COUNT(i.id)
|
|
FROM {local_treestudyplan}
|
|
INNER JOIN {local_treestudyplan_line} l ON p.id = l.studyplan_id
|
|
INNER JOIN {local_treestudyplan_item} i ON l.id = i.line_id
|
|
WHERE p.id = :planid
|
|
AND i.course_id = :courseid";
|
|
$count = $DB->get_field_sql($sql, ["courseid" => $courseid, "planid" => $this->id]);
|
|
|
|
return ($count > 0) ? true : false;
|
|
}
|
|
|
|
/**
|
|
* List the course id is linked in this studyplan
|
|
* Used for cohort enrolment cascading
|
|
*/
|
|
public function get_linked_course_ids() {
|
|
global $DB;
|
|
|
|
$sql = "SELECT i.course_id
|
|
FROM {local_treestudyplan} p
|
|
INNER JOIN {local_treestudyplan_page} pg ON p.id = pg.studyplan_id
|
|
INNER JOIN {local_treestudyplan_line} l ON pg.id = l.page_id
|
|
INNER JOIN {local_treestudyplan_item} i ON l.id = i.line_id
|
|
WHERE p.id = :studyplan_id AND i.type = :itemtype";
|
|
$fields = $DB->get_fieldset_sql($sql, ["studyplan_id" => $this->id, "itemtype" => studyitem::COURSE]);
|
|
|
|
return $fields;
|
|
}
|
|
|
|
/**
|
|
* List the cohort id's associated with this studyplan
|
|
*/
|
|
public function get_linked_cohort_ids() {
|
|
global $CFG, $DB;
|
|
|
|
$sql = "SELECT DISTINCT j.cohort_id FROM {local_treestudyplan_cohort} j
|
|
WHERE j.studyplan_id = :studyplan_id";
|
|
$fields = $DB->get_fieldset_sql($sql, ['studyplan_id' => $this->id]);
|
|
return $fields;
|
|
}
|
|
|
|
/**
|
|
* List the user id's explicitly associated with this studyplan
|
|
*/
|
|
public function get_linked_user_ids() {
|
|
global $CFG, $DB;
|
|
|
|
$sql = "SELECT DISTINCT j.user_id FROM {local_treestudyplan_user} j
|
|
WHERE j.studyplan_id = :studyplan_id";
|
|
$fields = $DB->get_fieldset_sql($sql, ['studyplan_id' => $this->id]);
|
|
return $fields;
|
|
}
|
|
/**
|
|
* See if the specified course id is linked in this studyplan
|
|
*/
|
|
public function badge_linked($badgeid) {
|
|
global $DB;
|
|
|
|
$sql = "SELECT COUNT(i.id)
|
|
FROM {local_treestudyplan}
|
|
INNER JOIN {local_treestudyplan_line} l ON p.id = l.studyplan_id
|
|
INNER JOIN {local_treestudyplan_item} i ON l.id = i.line_id
|
|
WHERE p.id = :planid
|
|
AND i.badge_id = :badgeid";
|
|
$count = $DB->get_field_sql($sql, ["badgeid" => $badgeid, "planid" => $this->id]);
|
|
|
|
return ($count > 0) ? true : false;
|
|
}
|
|
}
|