761 lines
27 KiB
PHP
761 lines
27 KiB
PHP
<?php
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namespace local_treestudyplan;
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require_once($CFG->libdir.'/externallib.php');
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class studyplan {
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const TABLE = "local_treestudyplan";
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private static $STUDYPLAN_CACHE = [];
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private $r; // Holds database record
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private $id;
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private $aggregator;
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private $context = null; // Hold context object once retrieved
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public function getAggregator(){
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return $this->aggregator;
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}
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// Cache constructors to avoid multiple creation events in one session.
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public static function findById($id): self {
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if(!array_key_exists($id,self::$STUDYPLAN_CACHE)){
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self::$STUDYPLAN_CACHE[$id] = new self($id);
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}
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return self::$STUDYPLAN_CACHE[$id];
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}
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private function __construct($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::createOrDefault($this->r->aggregation, $this->r->aggregation_config);
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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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public function slots(){
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return $this->r->slots;
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}
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public function name(){
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return $this->r->name;
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}
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public function startdate(){
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return new \DateTime($this->r->startdate);
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}
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/**
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* Return the context this studyplan is associated to
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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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}
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catch(\dml_missing_record_exception $x){
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throw new \InvalidArgumentException("Context {$this->r->context_id} not available"); // Just throw it up again. catch is included here to make sure we know it throws this exception
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}
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}
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return $this->context;
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}
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public function enddate(){
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if($this->r->enddate && strlen($this->r->enddate) > 0){
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return new \DateTime($this->r->enddate);
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}
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else{
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// return a date 100 years into the future
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return (new \DateTime($this->r->startdate))->add(new \DateInterval("P100Y"));
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}
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}
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public static function simple_structure($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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"slots" => new \external_value(PARAM_INT, 'number of slots in studyplan'),
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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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"startdate" => new \external_value(PARAM_TEXT, 'start date of studyplan'),
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"enddate" => new \external_value(PARAM_TEXT, 'end date 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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],'Basic studyplan info',$value);
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}
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public function simple_model(){
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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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'slots' => $this->r->slots,
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'context_id' => $this->context()->id,
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'description' => $this->r->description,
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'startdate' => $this->r->startdate,
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'enddate' => $this->r->enddate,
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"aggregation" => $this->r->aggregation,
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"aggregation_config" => $this->aggregator->config_string(),
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'aggregation_info' => $this->aggregator->basic_model(),
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];
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}
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public static function editor_structure($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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"description"=> new \external_value(PARAM_TEXT, 'description of studyplan'),
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"slots" => new \external_value(PARAM_INT, 'number of slots in studyplan'),
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"context_id" => new \external_value(PARAM_INT, 'context_id of studyplan'),
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"startdate" => new \external_value(PARAM_TEXT, 'start date of studyplan'),
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"enddate" => new \external_value(PARAM_TEXT, 'end date 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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/*"association" => new \external_single_structure([
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'cohorts' => new \external_multiple_structure(associationservice::cohort_structure()),
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'users' => new \external_multiple_structure(associationservice::user_structure()),
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]),*/
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"studylines" => new \external_multiple_structure(studyline::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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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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'description' => $this->r->description,
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'slots' => $this->r->slots,
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'context_id' => $this->context()->id,
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'startdate' => $this->r->startdate,
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'enddate' => $this->r->enddate,
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"aggregation" => $this->r->aggregation,
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"aggregation_config" => $this->aggregator->config_string(),
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'aggregation_info' => $this->aggregator->basic_model(),
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/*'association' => [
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'cohorts' => associationservice::associated_cohorts($this->r->id),
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'users' => associationservice::associated_users($this->r->id),
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],*/
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'studylines' => [],
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];
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$children = studyline::find_studyplan_children($this);
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foreach($children as $c)
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{
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$model['studylines'][] = $c->editor_model();
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}
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if(has_capability('local/treestudyplan:forcescales', \context_system::instance())){
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if(!array_key_exists('advanced',$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" => $scale->name,];
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}, \grade_scale::fetch_all(array('courseid'=>0)) ) ;
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$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){
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global $CFG, $DB;
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$addable = ['name','shortname','description','context_id','slots','startdate','enddate','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, $info);
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return self::findById($id); // make sure the new studyplan is immediately cached
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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','context_id','slots','startdate','enddate','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::createOrDefault($this->r->aggregation, $this->r->aggregation_config);
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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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$children = studyline::find_studyplan_children($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_line',['studyplan_id' => $this->id]) > 0){
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return success::fail('cannot delete studyplan that still has studylines');
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}
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else
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{
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$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 = $DB->get_fieldset_select(self::TABLE,"id","");
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}
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else{
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if($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 $id)
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{
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$list[] = studyplan::findById($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 $id)
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{
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$list[] = studyplan::findById($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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{
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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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$cohort_plan_ids = $DB->get_fieldset_sql($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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$user_plan_ids = $DB->get_fieldset_sql($sql, ['userid' => $userid]);
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$plans = [];
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foreach($cohort_plan_ids as $id) {
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$plans[$id] = self::findById($id);
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}
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foreach($user_plan_ids as $id) {
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if(!array_key_exists($id,$plans)){
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$plans[$id] = self::findById($id);
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}
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}
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return $plans;
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}
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/**
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* Find The active studyplans where the specified user is a teacher
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* (Has the mod/assign::grade capability in one of the linked courses)
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* TODO: OPTIMIZE THIS CHECK!!!
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*/
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public static function find_teaching($userid){
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global $DB;
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$list = [];
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// First find all active study plans
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$sql = "SELECT s.id FROM {local_treestudyplan} s
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WHERE startdate <= NOW() and enddate >= NOW()";
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$plan_ids = $DB->get_fieldset_sql($sql, []);
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foreach($plan_ids as $planid) {
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$sql = "SELECT i.course_id FROM mdl_local_treestudyplan_item i
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INNER JOIN mdl_local_treestudyplan_line l ON i.line_id = l.id
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WHERE l.studyplan_id = :plan_id AND i.course_id IS NOT NULL";
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$course_ids = $DB->get_fieldset_sql($sql, ["plan_id" => $planid]);
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$linked = false;
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foreach($course_ids as $cid){
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$coursecontext = \context_course::instance($cid);
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if (is_enrolled($coursecontext, $userid, 'mod/assign:grade')){
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$linked = true;
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break; // No need to search further
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}
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}
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if($linked)
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{
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$list[$planid] = self::findById($planid);
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}
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}
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return $list;
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}
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static public function exist_for_user($userid)
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{
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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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private function find_linked_userids(): array {
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global $DB;
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$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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return array_unique($uids);
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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,$uids)){
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return true;
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} else {
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return false;
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}
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}
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public static function user_structure($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'),
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"shortname"=> new \external_value(PARAM_TEXT, 'shortname of studyplan'),
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"description"=> new \external_value(PARAM_TEXT, 'description of studyplan'),
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"slots" => new \external_value(PARAM_INT, 'number of slots in studyplan'),
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"startdate" => new \external_value(PARAM_TEXT, 'start date of studyplan'),
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"enddate" => new \external_value(PARAM_TEXT, 'end date of studyplan'),
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"studylines" => new \external_multiple_structure(studyline::user_structure()),
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"aggregation_info" => aggregator::basic_structure(),
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],'Studyplan with user info',$value);
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}
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public function user_model($userid){
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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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'description' => $this->r->description,
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'slots' => $this->r->slots,
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'startdate' => $this->r->startdate,
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'enddate' => $this->r->enddate,
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'studylines' => [],
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'aggregation_info' => $this->aggregator->basic_model(),
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];
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$children = studyline::find_studyplan_children($this);
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foreach($children as $c)
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{
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$model['studylines'][] = $c->user_model($userid);
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}
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return $model;
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}
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public static function duplicate_plan($plan_id,$name,$shortname)
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{
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$ori = self::findById($plan_id);
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$new = $ori->duplicate($name,$shortname);
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return $new->simple_model();
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}
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public function duplicate($name,$shortname)
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{
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// First duplicate the studyplan structure
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$new =studyplan::add([
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'name' => $name,
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'shortname' => $shortname,
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'description' => $this->r->description,
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'slots' => $this->r->slots,
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'startdate' => $this->r->startdate,
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'enddate' => empty($this->r->enddate)?null:$this->r->enddate,
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]);
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// next, copy the studylines
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$children = studyline::find_studyplan_children($this);
|
|
$itemtranslation = [];
|
|
$linetranslation = [];
|
|
foreach($children as $c){
|
|
$newchild = $c->duplicate($this,$itemtranslation);
|
|
$linetranslation[$c->id()] = $newchild->id();
|
|
}
|
|
|
|
// now the itemtranslation array contains all of the old child id's as keys and all of the related new ids as values
|
|
// (feature of the studyline::duplicate function)
|
|
// use this to recreate the lines in the new plan
|
|
foreach(array_keys($itemtranslation) as $item_id){
|
|
// copy based on the outgoing connections of each item, to avoid duplicates
|
|
$connections = studyitemconnection::find_outgoing($item_id);
|
|
foreach($connections as $conn){
|
|
studyitemconnection::connect($itemtranslation[$conn->from_id],$itemtranslation[$conn->to_id]);
|
|
}
|
|
}
|
|
return $new;
|
|
}
|
|
|
|
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();
|
|
$json = json_encode([
|
|
"type"=>"studyplan",
|
|
"version"=>1.0,
|
|
"studyplan"=>$model
|
|
],\JSON_PRETTY_PRINT);
|
|
return [ "format" => "application/json", "content" => $json];
|
|
}
|
|
|
|
public function export_plan_csv()
|
|
{
|
|
$model = $this->editor_model();
|
|
|
|
$slots = intval($model["slots"]);
|
|
// First line
|
|
$csv = "\"Studyline[{$slots}]\"";
|
|
for($i = 1; $i <= $slots; $i++){
|
|
$csv .= ",\"P{$i}\"";
|
|
}
|
|
$csv .= "\r\n";
|
|
// next, make one line per studyline
|
|
foreach($model["studylines"] as $line){
|
|
// determine how many fields are simultaneous in the line at maximum
|
|
$maxlines = 1;
|
|
for($i = 1; $i <= $slots; $i++){
|
|
if(count($line["slots"]) > $i){
|
|
$ct = 0;
|
|
foreach($line["slots"][$i][studyline::SLOTSET_COMPETENCY] as $itm){
|
|
if($itm["type"] == "course"){
|
|
$ct += 1;
|
|
}
|
|
}
|
|
if($ct > $maxlines){
|
|
$maxlines = $ct;
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
for($lct = 0; $lct < $maxlines; $lct++){
|
|
$csv .= "\"{$line["name"]}\"";
|
|
for($i = 1; $i <= $slots; $i++){
|
|
$filled = false;
|
|
if(count($line["slots"]) > $i){
|
|
$ct = 0;
|
|
foreach($line["slots"][$i][studyline::SLOTSET_COMPETENCY] as $itm){
|
|
if($itm["type"] == "course"){
|
|
if($ct == $lct){
|
|
$csv .= ",\"";
|
|
$csv .= $itm["course"]["fullname"];
|
|
$csv .= "\r\n";
|
|
$first = true;
|
|
foreach($itm["course"]["grades"] as $g){
|
|
if($g["selected"]){
|
|
if($first){
|
|
$first = false;
|
|
}
|
|
else{
|
|
$csv .= "\r\n";
|
|
}
|
|
$csv .= "- ".str_replace('"', '\'', $g["name"]);
|
|
}
|
|
}
|
|
$csv .= "\"";
|
|
$filled = true;
|
|
break;
|
|
}
|
|
$ct++;
|
|
}
|
|
}
|
|
}
|
|
if(!$filled) {
|
|
$csv .= ",\"\"";
|
|
}
|
|
}
|
|
$csv .= "\r\n";
|
|
}
|
|
}
|
|
|
|
return [ "format" => "text/csv", "content" => $csv];
|
|
}
|
|
|
|
public function export_studylines(){
|
|
$model = $this->export_studylines_model();
|
|
$json = json_encode([
|
|
"type"=>"studylines",
|
|
"version"=>1.0,
|
|
"studylines"=>$model,
|
|
],\JSON_PRETTY_PRINT);
|
|
return [ "format" => "application/json", "content" => $json];
|
|
}
|
|
|
|
public function export_model()
|
|
{
|
|
$model = [
|
|
'name' => $this->r->name,
|
|
'shortname' => $this->r->shortname,
|
|
'description' => $this->r->description,
|
|
'slots' => $this->r->slots,
|
|
'startdate' => $this->r->startdate,
|
|
'enddate' => $this->r->enddate,
|
|
"aggregation" => $this->r->aggregation,
|
|
"aggregation_config" => json_decode($this->aggregator->config_string()),
|
|
'aggregation_info' => $this->aggregator->basic_model(),
|
|
'studylines' => $this->export_studylines_model(),
|
|
];
|
|
return $model;
|
|
}
|
|
|
|
public function export_studylines_model()
|
|
{
|
|
$children = studyline::find_studyplan_children($this);
|
|
$lines = [];
|
|
foreach($children as $c)
|
|
{
|
|
$lines[] = $c->export_model();
|
|
}
|
|
return $lines;
|
|
}
|
|
|
|
public static function import_studyplan($content,$format="application/json",$context_id=1)
|
|
{
|
|
if($format != "application/json") { return false;}
|
|
|
|
$content = json_decode($content,true);
|
|
if($content["type"] == "studyplan" && $content["version"] >= 1.0){
|
|
|
|
// 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
|
|
$content["studyplan"]["context_id"] = $context_id;
|
|
$plan = self::add($content["studyplan"]);
|
|
return $plan->import_studylines_model($content["studyplan"]["studylines"]);
|
|
|
|
}
|
|
else {
|
|
error_log("Invalid format and type: {$content['type']} version {$content['version']}");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
public function import_studylines($content,$format="application/json")
|
|
{
|
|
if($format != "application/json") { return false;}
|
|
$content = json_decode($content,true);
|
|
if($content["type"] == "studylines" && $content["version"] >= 1.0){
|
|
return $this->import_studylines_model($content["studylines"]);
|
|
}
|
|
else if($content["type"] == "studyplan" && $content["version"] >= 1.0){
|
|
return $this->import_studylines_model($content["studyplan"]["studylines"]);
|
|
}
|
|
else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
protected function find_studyline_by_shortname($shortname){
|
|
$children = studyline::find_studyplan_children($this);
|
|
foreach($children as $l){
|
|
if($shortname == $l->shortname()){
|
|
return $l;
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
protected function import_studylines_model($model)
|
|
{
|
|
// First attempt to map each studyline model to an existing or new line
|
|
$line_map = [];
|
|
foreach($model as $ix => $linemodel){
|
|
$line = $this->find_studyline_by_shortname($linemodel["shortname"]);
|
|
if(empty($line)){
|
|
$linemodel["studyplan_id"] = $this->id;
|
|
$line = studyline::add($linemodel);
|
|
} else {
|
|
//$line->edit($linemodel); // Update the line with the settings from the imported file
|
|
}
|
|
$line_map[$ix] = $line;
|
|
}
|
|
|
|
// next, let each study line import the study items
|
|
$itemtranslation = [];
|
|
$connections = [];
|
|
foreach($model as $ix => $linemodel){
|
|
$line_map[$ix]->import_studyitems($linemodel["slots"],$itemtranslation,$connections);
|
|
}
|
|
|
|
// Finally, create the links between the study items
|
|
foreach($connections as $from => $dests){
|
|
foreach($dests as $to){
|
|
studyitemconnection::connect($from,$itemtranslation[$to]);
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* 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;
|
|
}
|
|
|
|
/**
|
|
* 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;
|
|
}
|
|
|
|
|
|
|
|
|
|
} |