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<?php
namespace JsonApi\Schemas;
use Neomerx\JsonApi\Contracts\Schema\ContextInterface;
use Neomerx\JsonApi\Schema\Link;
use Studip\Activity\Activity as StudipActivity;
class Activity extends SchemaProvider
{
const TYPE = 'activities';
const REL_ACTOR = 'actor';
const REL_CONTEXT = 'context';
const REL_OBJECT = 'object';
/**
* Hier wird der Typ des Schemas festgelegt.
* {@inheritdoc}
*/
/**
* Diese Method entscheidet über die JSON-API-spezifische ID von
* Activity-Objekten.
* {@inheritdoc}
*/
public function getId($activity): ?string
{
return $activity->id;
}
/**
* Hier können (ausgewählte) Instanzvariablen eines \Activity-Objekts
* für die Ausgabe vorbereitet werden.
* {@inheritdoc}
*/
public function getAttributes($activity, ContextInterface $context): iterable
{
if (preg_match('/\\\\([^\\\\]+)Provider$/', $activity->provider, $matches)) {
$activityType = strtolower($matches[1]);
} else {
$activityType = null;
}
$result = [
'title' => $this->createTitle($activity),
'mkdate' => date('c', $activity->mkdate),
'content' => $activity->content,
'verb' => $activity->verb,
'activity-type' => $activityType,
];
return $result;
}
/**
* In dieser Methode können Relationships zu anderen Objekten
* spezifiziert werden.
* {@inheritdoc}
*/
public function getRelationships($activity, ContextInterface $context): iterable
{
$relationships = [];
$relationships = $this->getActorRelationship($relationships, $activity, $this->shouldInclude($context, 'actor'));
$relationships = $this->getObjectRelationship($relationships, $activity, $this->shouldInclude($context, 'object'));
$relationships = $this->getContextRelationship($relationships, $activity, $this->shouldInclude($context, 'context'));
return $relationships;
}
private function getActorRelationship(array $relationships, StudipActivity $activity, $include)
{
$actorType = $activity->actor_type;
$actorId = $activity->actor_id;
if ($actorType === 'user') {
$actor = $include ? \User::findFull($actorId) : \User::build(['id' => $actorId], false);
$relationships[self::REL_ACTOR] = [
self::RELATIONSHIP_LINKS => [Link::RELATED => $this->createLinkToResource($actor)],
self::RELATIONSHIP_DATA => $actor
];
}
return $relationships;
}
private function getObjectRelationship(array $relationships, StudipActivity $activity, $include)
{
$mapping = [
'documents' => \FileRef::class,
'forum' => \Forum\Posting::class,
'message' => \Message::class,
'news' => \StudipNews::class,
'participants' => \Course::class,
'schedule' => \Course::class,
'wiki' => \WikiPage::class,
];
if (isset($mapping[$activity->object_type])) {
$objectMapping = $mapping[$activity->object_type];
if ($activity->object_type === 'wiki') {
$data = \WikiPage::findOneBySQL('`course_id` = ? AND `name` = ?', [$activity->context_id, $activity->object_id]);
} else {
$data = $include
? call_user_func([$objectMapping, 'find'], $activity->object_id)
: call_user_func([$objectMapping, 'build'], ['id' => $activity->object_id], false);
}
if ($data) {
$link = $this->createLinkToResource($data);
$relationships[self::REL_OBJECT] = [
self::RELATIONSHIP_LINKS => [
Link::RELATED => $link
],
self::RELATIONSHIP_DATA => $data,
];
}
} else {
$relationships[self::REL_OBJECT] = [
self::RELATIONSHIP_META => [
'object-type' => $activity->object_type,
'object-id' => $activity->object_id,
],
];
}
return $relationships;
}
private function getContextRelationship(array $relationships, StudipActivity $activity, $include)
{
if ($data = $this->getContext($activity, $include)) {
$link = $this->createLinkToResource($data);
$relationships[self::REL_CONTEXT] = [
self::RELATIONSHIP_LINKS => [
Link::RELATED => $link
],
self::RELATIONSHIP_DATA => $data,
];
}
return $relationships;
}
private function getContext($activity, $include)
{
$mapping = [
'course' => \Course::class,
'institute' => \Institute::class,
'user' => \User::class,
];
if (!isset($mapping[$activity->context])) {
return null;
}
$context = $mapping[$activity->context];
return $include
? call_user_func([$context, 'find'], $activity->context_id)
: call_user_func([$context, 'build'], ['id' => $activity->context_id], false);
}
private function createTitle($activity)
{
// add i18n auto generated title prefix
$title = '';
$class = $activity->provider;
$objectText = $class::getLexicalField();
if (in_array($activity->actor_id, array('____%system%____', 'system')) !== false) {
$actor = _('Stud.IP');
} else {
$actor = get_fullname($activity->actor_id);
}
$contextName = $activity->getContextObject()->getContextFullname();
switch ($activity->context) {
case 'course':
$title = $actor.' '
.sprintf($activity->verbToText(),
$objectText.sprintf(_(' im Kurs "%s"'), $contextName)
);
break;
case 'institute':
$title = $actor.' '
.sprintf($activity->verbToText(),
$objectText.sprintf(_(' in der Einrichtung "%s"'), $contextName)
);
break;
case 'system':
$title = $actor.' '
.sprintf($activity->verbToText(), _('allen')).' '
.$objectText;
break;
case 'user':
$title = $actor.' '
.sprintf($activity->verbToText(), $contextName).' '
.$objectText;
break;
}
return $title;
}
}
|
