laravel + mongo + gpaphql get children array - php

Question

i have data in mongodb
it is a road object that has a property and an array of points that it consists of:
my model in laravel
<?php
namespace App\Models;
use App\Traits\Uuids;
use GraphQL\Type\Definition\Type;
use Rebing\GraphQL\Support\Facades\GraphQL;
use Jenssegers\Mongodb\Eloquent\Model as Eloquent;
class Road extends Eloquent
{
//use HasFactory;
use Uuids;
protected $connection = 'mongodb';
protected $collection = 'roads';
protected $fillable = ['id', 'roadId', 'code', 'name', 'points'];
#public $timestamps = false;
public $incrementing = false;
public function fields() : array
{
return [
'id' => [
'type' => Type::string(),
'description' => 'The identifier of the road',
],
'roadId' => [
'type' => Type::nonNull(Type::int()),
'description' => 'ID road of external database',
],
'code' => [
'type' => Type::string(),
'description' => 'code of document',
],
'name' => [
'type' => Type::nonNull(Type::string()),
'description' => 'road name',
],
'points' => [
'name' => 'points',
'description' => 'points of road',
'type' => GraphQL::type('RoadPoints'),
'is_relation' => false
]
];
}
}
here we refer to a new type of "point on the road"
GraphQL type 'RoadPoints':
<?php
namespace App\GraphQL\Types;
use App\Models\Address;
use App\Models\RoadPoints;
use GraphQL\Type\Definition\Type;
use Rebing\GraphQL\Support\Facades\GraphQL;
use Rebing\GraphQL\Support\Type as GraphQLType;
class RoadPointsType extends GraphQLType
{
protected $attributes = [
'name' => 'RoadPoints',
'description' => 'The points is defined by the format GeoJSON Point',
'model' => RoadPoints::class,
];
public function fields(): array
{
return [
'type' => [
'type' => Type::string(),
'description' => 'The format GeoJSON',
],
'pk' => [
'type' => Type::string(),
'description' => 'piket of point',
],
'coordinates' => [
'type' => Type::listOf(GraphQL::type('GeoJSON')),
'description' => 'The partner lat and lng',
]
];
}
}
laravel model of RoadPoints
model RoadPoints class :
<?php
namespace App\Models;
use Jenssegers\Mongodb\Eloquent\Model as Eloquent;
class RoadPoints extends Eloquent
{
protected $fillable = ['type', 'pk', 'coordinates'];
protected $casts = [
'coordinates' => 'array'
];
}
graphql RoadQuery :
<?php
namespace App\GraphQL\Queries;
use App\Models\Road;
use Closure;
use GraphQL\Type\Definition\Type;
use Rebing\GraphQL\Support\Query;
use App\Services\RoadService;
use GraphQL\Type\Definition\ResolveInfo;
use Rebing\GraphQL\Support\Facades\GraphQL;
class RoadQuery extends Query
{
private $roadService;
public function __construct(RoadService $roadService)
{
$this->roadService = $roadService;
}
protected $attributes = [
'name' => 'Road',
'description' => 'Query to Road data and points.'
];
public function type(): Type
{
return Type::listOf(GraphQL::type('Road'));
}
public function args(): array
{
return [
'id' => ['name' => 'id', 'type' => Type::string()],
'roadId' => ['name' => 'roadId', 'type' => Type::int()],
'code' => ['name' => 'code', 'type' => Type::string()],
'name' => ['name' => 'name', 'type' => Type::string()],
'lat' => ['name' => 'lat', 'type' => Type::float()],
'lng' => ['name' => 'lng', 'type' => Type::float()]
];
}
public function resolve($root, $args, $context, ResolveInfo $resolveInfo, Closure $getSelectFields)
{
$fields = $resolveInfo->getFieldSelection($depth = 3);
return $this->roadService->find($args, $fields);
}
}
result:
why pk and coordinates is null ?
Please tell me how to correctly select all objects in the array (points).

Answer 1

error in model
change
'type' => GraphQL::type('RoadPoints'),
to
'type' => Type::listOf(GraphQL::type('RoadPoints')),