我正在嘗試使用 api-platform (2.6.5) 在我的物體上添加距離過濾器。一切正常，除了回應正文：
"hydra:member": [
{
"0": {
"@id": "/api/places/1",
"@type": "Place",
"id": 1,
"name": "test",
"description": "test",
"slug": "test",
"address": "test",
"country": "Suisse",
"latitude": "50.6300000",
"longitude": "3.0620000",
"tableCount": 10,
"tablePlace": 6,
"tableCapacity": 60
},
"distance": "8.887448516728334"
},
{
"0": {
"@id": "/api/places/8",
...
},
"distance": "10.273770606986691"
},
{...}
計算的距離不被視為物體屬性，api平臺單獨回傳它們（這是前端的問題）。
這是我的物體：
/**
* @ORM\Entity(repositoryClass=PlaceRepository::class)
* @ApiResource(
* normalizationContext={"groups"={"place", "place:read"}, "swagger_definition_name": "Read"},
* denormalizationContext={"groups"={"place", "place:write"}, "swagger_definition_name": "Write"},
* )
* @ApiFilter(SearchFilter::class, properties={"name": "partial", "description": "partial", "zip":"start", "city": "exact"})
* @ApiFilter(NearbyFilter::class, properties={"location"})
* @Entity @HasLifecycleCallbacks
*/
class Place
{
....
/**
* @ORM\Column(type="decimal", precision=10, scale=7, nullable=true)
* @Groups({"place"})
*/
private $latitude;
/**
* @ORM\Column(type="decimal", precision=10, scale=7, nullable=true)
* @Groups({"place"})
*/
private $longitude;
/**
* @var float The distance calculated
* @Groups({"place:read"})
*/
private $distance;
這是我的過濾器：
final class NearbyFilter extends AbstractContextAwareFilter
{
protected function filterProperty(string $property, $value, QueryBuilder $queryBuilder, QueryNameGeneratorInterface $queryNameGenerator, string $resourceClass, string $operationName = null)
{
if ($property !== 'location') {
return;
}
[$lat, $lng, $radius] = explode(',', $value);
// add distance in DQL based on filter location point
$queryBuilder
->addSelect('
(6371.0 * acos (
cos ( radians(:latitude) )
* cos( radians(o.latitude) )
* cos( radians(o.longitude) - radians(:longitude) )
sin ( radians(:latitude) )
* sin( radians(o.latitude) )
)) AS distance')
->having('distance <= :radius')
->setParameter('radius', $radius)
->setParameter('latitude', $lat)
->setParameter('longitude', $lng)
->orderBy('distance')
;
}
如您所見，我嘗試添加未映射的屬性“距離”，但沒有效果：/我也嘗試使用 Dto 和 Denormalizer 來解決此問題，但沒有成功（但我是新手）。
你能解決我的問題嗎？
謝謝 ！
uj5u.com熱心網友回復：
最后找到 DataProvider 的解決方案：
namespace App\DataProvider;
use ApiPlatform\Core\DataProvider\CollectionDataProviderInterface;
use ApiPlatform\Core\DataProvider\ContextAwareCollectionDataProviderInterface;
use ApiPlatform\Core\DataProvider\RestrictedDataProviderInterface;
use App\Entity\Place;
class PlaceDataProvider implements ContextAwareCollectionDataProviderInterface, RestrictedDataProviderInterface
{
private $collectionDataProvider;
public function __construct(CollectionDataProviderInterface $collectionDataProvider)
{
$this->collectionDataProvider = $collectionDataProvider;
}
public function getCollection(string $resourceClass, string $operationName = null, array $context = [])
{
$places = $this->collectionDataProvider->getCollection($resourceClass, $operationName, $context);
foreach ($places as &$place) {
if(!$place instanceof Place && is_array($place)) {
$sanitizedPlace = $place[0];
if( !is_null( $place['distance'] ) ){
$sanitizedPlace = $this->setDistance($sanitizedPlace, $place['distance']);
}
$place = $sanitizedPlace;
}
}
return $places;
}
public function supports(string $resourceClass, string $operationName = null, array $context = []): bool
{
return $resourceClass === Place::class;
}
public function setDistance(Place $place, $distance): Place
{
$place->setDistance($distance);
return $place;
}
}
謝謝
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