add developper binding to platform

backend/app/Model/Platform.php

@@ -4,6 +4,7 @@ declare(strict_types=1);
 
 namespace App\Model;
 
+use Hyperf\Database\Model\Relations\BelongsTo;
 
 /**
  * @mixin \App_Model_Platform
@@ -12,7 +13,7 @@ class Platform extends Model
 {
     /**
      * The table associated with the model.
-     * 
+     *
      * @TODO check if we realy need the platform table, or consider use a virtual model
      */
     protected ?string $table = 'platforms';
@@ -20,10 +21,15 @@ class Platform extends Model
     /**
      * The attributes that are mass assignable.
      */
-    protected array $fillable = [];
+    protected array $fillable = ['developer_id'];
 
     /**
      * The attributes that should be cast to native types.
      */
-    protected array $casts = [];
+    protected array $casts = ['developer_id' => 'integer'];
+
+    public function developer(): BelongsTo
+    {
+        return $this->belongsTo(User::class, 'developer_id');
+    }
 }