README.md

Laravel Eloquent Spatial

This Laravel package allows you to easily work with spatial data types and functions.

Supported databases:

• MySQL 5.7/8
• MariaDB 10
• Postgres 12/13/14/15/16 with PostGIS 3.4

Getting Started

Installing the Package

You can install the package via composer:

composer require matanyadaev/laravel-eloquent-spatial

Setting Up Your First Model

1. First, generate a new model along with a migration file by running:

   php artisan make:model {modelName} --migration

2. Next, add some spatial columns to the migration file. For instance, to create a "places" table:

   use Illuminate\Database\Migrations\Migration;
   use Illuminate\Database\Schema\Blueprint;
   
   class CreatePlacesTable extends Migration
   {
       public function up(): void
       {
           Schema::create('places', static function (Blueprint $table) {
               $table->id();
               $table->string('name')->unique();
               $table->geometry('location', subtype: 'point')->nullable();
               $table->geometry('area', subtype: 'polygon')->nullable();
               $table->timestamps();
           });
       }
   
       public function down(): void
       {
           Schema::dropIfExists('places');
       }
   }

3. Run the migration:

   php artisan migrate

4. In your new model, fill the $fillable and $casts arrays and use the HasSpatial trait:

   namespace App\Models;
   
   use Illuminate\Database\Eloquent\Model;
   use MatanYadaev\EloquentSpatial\Objects\Point;
   use MatanYadaev\EloquentSpatial\Objects\Polygon;
   use MatanYadaev\EloquentSpatial\Traits\HasSpatial;
   
   /**
    * @property Point $location
    * @property Polygon $area
    */
   class Place extends Model
   {
       use HasSpatial;
   
       protected $fillable = [
           'name',
           'location',
           'area',
       ];
   
       protected $casts = [
           'location' => Point::class,
           'area' => Polygon::class,
       ];
   }

Interacting with Spatial Data

After setting up your model, you can now create and access spatial data. Here's an example:

use App\Models\Place;
use MatanYadaev\EloquentSpatial\Objects\Polygon;
use MatanYadaev\EloquentSpatial\Objects\LineString;
use MatanYadaev\EloquentSpatial\Objects\Point;
use MatanYadaev\EloquentSpatial\Enums\Srid;

// Create new records

$londonEye = Place::create([
    'name' => 'London Eye',
    'location' => new Point(51.5032973, -0.1217424),
]);

$whiteHouse = Place::create([
    'name' => 'White House',
    'location' => new Point(38.8976763, -77.0365298, Srid::WGS84->value), // with SRID
]);

$vaticanCity = Place::create([
    'name' => 'Vatican City',
    'area' => new Polygon([
        new LineString([
              new Point(12.455363273620605, 41.90746728266806),
              new Point(12.450309991836548, 41.906636872349075),
              new Point(12.445632219314575, 41.90197359839437),
              new Point(12.447413206100464, 41.90027269624499),
              new Point(12.457906007766724, 41.90000118654431),
              new Point(12.458517551422117, 41.90281205461268),
              new Point(12.457584142684937, 41.903107507989986),
              new Point(12.457734346389769, 41.905918239316286),
              new Point(12.45572805404663, 41.90637337450963),
              new Point(12.455363273620605, 41.90746728266806),
        ]),
    ]),
])

// Access the data

echo $londonEye->location->latitude; // 51.5032973
echo $londonEye->location->longitude; // -0.1217424

echo $whiteHouse->location->srid; // 4326

echo $vacationCity->area->toJson(); // {"type":"Polygon","coordinates":[[[41.90746728266806,12.455363273620605],[41.906636872349075,12.450309991836548],[41.90197359839437,12.445632219314575],[41.90027269624499,12.447413206100464],[41.90000118654431,12.457906007766724],[41.90281205461268,12.458517551422117],[41.903107507989986,12.457584142684937],[41.905918239316286,12.457734346389769],[41.90637337450963,12.45572805404663],[41.90746728266806,12.455363273620605]]]}

Further Reading

For more comprehensive documentation on the API, please refer to the API page.

Extension

Extend Geometry class with macros

You can add new methods to the Geometry class through macros.

Here's an example of how to register a macro in your service provider's boot method:

class AppServiceProvider extends ServiceProvider
{
    public function boot(): void
    {
        Geometry::macro('getName', function (): string {
            /** @var Geometry $this */
            return class_basename($this);
        });
    }
}

Use the method in your code:

$londonEyePoint = new Point(51.5032973, -0.1217424);

echo $londonEyePoint->getName(); // Point

Extend with custom geometry classes

You can extend the geometry classes by creating custom geometry classes and add functionality. You can also override existing methods, although it is not recommended, as it may lead to unexpected behavior.

1. Create a custom geometry class that extends the base geometry class.

use MatanYadaev\EloquentSpatial\Objects\Point;

class ExtendedPoint extends Point
{
    public function toCustomArray(): array
    {
        return 'coordinates' => [
            'latitude' => $this->latitude,
            'longitude' => $this->longitude
        ]
    }
}

2. Update the geometry class mapping in a service provider file.

use App\ValueObjects\ExtendedPoint;
use Illuminate\Support\ServiceProvider;
use MatanYadaev\EloquentSpatial\EloquentSpatial;

class AppServiceProvider extends ServiceProvider
{
    public function boot(): void
    {
        EloquentSpatial::usePoint(ExtendedPoint::class);
    }
}

3. Update your model to use the custom geometry class in the $casts property or casts() method.

use App\ValueObjects\ExtendedPoint;
use Illuminate\Database\Eloquent\Model;
use MatanYadaev\EloquentSpatial\Traits\HasSpatial;

class Place extends Model
{
    use HasSpatial;
    
    protected $casts = [
        'coordinates' => ExtendedPoint::class,
    ];
    
    // Or:

    protected function casts(): array
    {
        return [
            'coordinates' => ExtendedPoint::class,
        ];
    }
}

4. Use the custom geometry class in your code.

use App\Models\Location;
use App\ValueObjects\ExtendedPoint;

$place = Place::create([
    'name' => 'London Eye',
    'coordinates' => new ExtendedPoint(51.5032973, -0.1217424),
]);

echo $place->coordinates->toCustomArray(); // ['longitude' => -0.1217424, 'latitude' => 51.5032973]

Development

Here are some useful commands for development:

• Run tests: composer pest:mysql, composer pest:mariadb, composer pest:postgres
• Run tests with coverage: composer pest-coverage:mysql
• Perform type checking: composer phpstan
• Perform code formatting: composer pint

Before running tests, make sure to run docker-compose up to start the database container.

Updates and Changes

For details on updates and changes, please refer to our CHANGELOG.

License

Laravel Eloquent Spatial is released under The MIT License (MIT). For more information, please see our License File.