Handling expression in location cast v2

CHANGELOG.md

@@ -2,6 +2,9 @@
 
 All notable changes to `laravel-spatial` will be documented in this file
 
+## 2.2.0 - 2025-05-15
+- Expression support added to `get()` method in `LocationCast`.
+
 ## 2.1.0 - 2025-02-20
 - Removed support for Laravel 11 due to incompatibility with the current implementation.
 

src/Casts/LocationCast.php

@@ -19,7 +19,7 @@ public function get($model, string $key, $value, array $attributes): ?Point
             return null;
         }
 
-        $coordinates = explode(',', $value);
+        $coordinates = $this->getCoordinates($model, $value);
 
         if (count($coordinates) > 1) {
             $location = explode(',', str_replace(['POINT(', ')', ' '], ['', '', ','], $coordinates[0]));
@@ -51,4 +51,22 @@ public function serialize($model, string $key, $value, array $attributes): array
     {
         return $value->toArray();
     }
+
+    private function getCoordinates($model, $value): array
+    {
+        if ($value instanceof Expression) {
+            preg_match(
+                pattern: "/ST_GeomFromText\(\s*'([^']+)'\s*(?:,\s*(\d+))?\s*(?:,\s*'([^']+)')?\s*\)/",
+                subject: (string) $value->getValue($model->getConnection()->getQueryGrammar()),
+                matches: $matches,
+            );
+
+            return [
+                $matches[1],
+                (int) ($matches[2] ?? 0),
+            ];
+        }
+
+        return explode(',', $value);
+    }
 }

tests/LocationCastTest.php

@@ -2,6 +2,7 @@
 
 namespace TarfinLabs\LaravelSpatial\Tests;
 
+use Illuminate\Database\Query\Expression;
 use InvalidArgumentException;
 use Illuminate\Support\Facades\DB;
 use TarfinLabs\LaravelSpatial\Casts\LocationCast;
@@ -73,6 +74,24 @@ public function it_can_get_a_casted_attribute(): void
         $this->assertEquals($point->getSrid(), $address->location->getSrid());
     }
 
+    /** @test */
+    public function it_can_get_a_casted_attribute_using_expression(): void
+    {
+        // 1. Arrange
+        $address = new Address();
+        $point = new Point(27.1234, 39.1234);
+
+        // 2. Act
+        $cast   = new LocationCast();
+        $result = $cast->get($address, 'location', new Expression($point->toGeomFromText()), $address->getAttributes());
+
+        // 3. Assert
+        $this->assertInstanceOf(Point::class, $result);
+        $this->assertEquals($point->getLat(), $result->getLat());
+        $this->assertEquals($point->getLng(), $result->getLng());
+        $this->assertEquals($point->getSrid(), $result->getSrid());
+    }
+
     /** @test */
     public function it_returns_null_if_the_value_of_the_casted_column_is_null(): void
     {