reconstruction of the project

app/Models/PayPalPayment.php

@@ -4,11 +4,17 @@ namespace App\Models;
 
 use App\Models\BaseModel;
 
-
 class PayPalPayment extends BaseModel
 {
     protected $table = 'paypal_payments';
-    protected $primaryKey = 'id';
+
+    /**
+     * CI: created_at is managed, updated_at is NOT used.
+     * In Laravel: enable timestamps but disable UPDATED_AT.
+     */
+    public $timestamps = false;
+    const UPDATED_AT = null;
+
     protected $fillable = [
         'webhook_id',
         'parent_school_id',
@@ -29,9 +35,12 @@ class PayPalPayment extends BaseModel
         'created_at',
     ];
 
-    // Enable timestamps
-    public $timestamps = false;
-    const CREATED_AT = 'created_at';
-    const UPDATED_AT = ''; // not used; leave empty if not needed
-}
-
+    protected $casts = [
+        'parent_school_id' => 'integer',
+        'amount'           => 'decimal:2',
+        'paypal_fee'       => 'decimal:2',
+        'net_amount'       => 'decimal:2',
+        'synced'           => 'boolean',
+        'sync_attempts'    => 'integer',
+    ];
+}