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Relations.php
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202 lines (170 loc) · 5.09 KB
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<?php
namespace App\Model\Trait;
use App\Controller\EntityController;
use App\Entity\Automation;
use App\Entity\Flow;
use App\Entity\Step;
use App\Entity\Connection;
use App\Entity\Dataset;
use App\Entity\Relation;
use App\Model\Interface\Persistable;
trait Relations
{
private array $relations = [];
private array $_relationEntities = [];
public function isRelationEmpty( Relation $entity ): bool {
$objects = [
Automation::class => $entity->getAutomation(),
Connection::class => $entity->getConnection(),
Dataset::class => $entity->getDataset(),
Flow::class => $entity->getFlow(),
Step::class => $entity->getStep(),
];
$objects = array_filter( $objects );
return empty( $objects );
}
public function fetchRelations(): array
{
// Reset relations, do NOT reset relationIds for cleaning purposes!
$this->relations = [];
if ( isset( $this->entity ) && is_callable( [ $this->entity, 'getRelations' ] ) ) {
foreach ( $this->entity->getRelations() as $relation ) {
$objects = [
Automation::class => $relation->getAutomation(),
Connection::class => $relation->getConnection(),
Dataset::class => $relation->getDataset(),
Flow::class => $relation->getFlow(),
Step::class => $relation->getStep(),
];
foreach ( $objects as $type => $object ) {
if ( $object ) {
$this->relations[ $type ][ $object->getId() ] = $object;
$this->_relationEntities[ $type ][ $object->getId() ] = $relation;
}
}
}
}
return $this->relations;
}
public function getRelations(): mixed
{
if ( empty( $this->relations ) ) {
$this->fetchRelations();
}
return $this->relations;
}
public function setRelations( $relations = [] ): void
{
// Make sure we have the latest data.
$this->fetchRelations();
$newRelationships = [];
foreach ( $relations as $relation ) {
if ( $relation instanceof Persistable ) {
$relation = $relations->getEntity();
}
$class = EntityController::getEntityClass( $relation );
$newRelationships[ $class ][] = $relation->getId();
$exists = $this->relations[ $class ][ $relation->getId() ] ?? null;
if ( $exists ) {
$_relation = $this->_relationEntities[ $class ][ $relation->getId() ] ?? null;
if ( $_relation ) {
continue;
}
}
$this->addRelation( $relation );
}
foreach ( $this->_relationEntities as $type => $objects ) {
foreach ( $objects as $id => $entity ) {
if ( ! isset( $newRelationships[ $type ][ $id ] ) ) {
$this->removeRelation( $entity );
}
}
}
}
public function removeRelation( $object ): void {
if ( $object instanceof Persistable ) {
$object = $object->getEntity();
}
$class = EntityController::getEntityClass( $object );
if ( $this instanceof Persistable ) {
$relationEntity = $this->_relationEntities[ $class ][ $object->getId() ] ?? null;
if ( $relationEntity ) {
switch ( true ) {
case $object instanceof Automation:
$relationEntity->removeAutomation( $object );
break;
case $object instanceof Connection:
$relationEntity->removeConnection( $object );
break;
case $object instanceof Dataset:
$relationEntity->removeDataset( $object );
break;
case $object instanceof Flow:
$relationEntity->removeFlow( $object );
break;
case $object instanceof Step:
$relationEntity->removeStep( $object );
break;
}
if ( $this->isRelationEmpty( $relationEntity ) ) {
$this->getEntity()->removeRelation( $relationEntity );
}
}
}
unset( $this->_relationEntities[ $class ][ $object->getId() ] );
unset( $this->_relationEntities[ $class ][ $object->getId() ] );
}
public function addRelation( $object ): void
{
if ( $object instanceof Persistable ) {
$object = $object->getEntity();
}
$class = EntityController::getEntityClass( $object );
$this->relations[ $class ][ $object->getId() ] = $object;
if ( $this instanceof Persistable ) {
$relation = new Relation();
if ( $object instanceof Persistable ) {
$object = $object->getEntity();
}
switch ( true ) {
case $object instanceof Automation:
$relation->setAutomation( $object );
break;
case $object instanceof Connection:
$relation->setConnection( $object );
break;
case $object instanceof Dataset:
$relation->setDataset( $object );
break;
case $object instanceof Flow:
$relation->setFlow( $object );
break;
case $object instanceof Step:
$relation->setStep( $object );
break;
default:
// Not an entity.
return;
}
// Set this entity.
switch ( true ) {
case $this->entity instanceof Automation:
$relation->setAutomation( $this->entity );
break;
case $this->entity instanceof Connection:
$relation->setConnection( $this->entity );
break;
case $this->entity instanceof Dataset:
$relation->setDataset( $this->entity );
break;
case $this->entity instanceof Flow:
$relation->setFlow( $this->entity );
break;
case $this->entity instanceof Step:
$relation->setStep( $this->entity );
break;
}
$this->getEntity()->addRelation( $relation );
}
}
}