Add all files

app/Observers/InvoiceTransactionObserver.php

@@ -0,0 +1,49 @@
+<?php
+
+namespace App\Observers;
+
+use App\Events\InvoiceTransaction as InvoiceTransactionEvent;
+use App\Models\InvoiceTransaction;
+
+class InvoiceTransactionObserver
+{
+    /**
+     * Handle the InvoiceTransaction "creating" event.
+     */
+    public function creating(InvoiceTransaction $invoice): void
+    {
+        event(new InvoiceTransactionEvent\Creating($invoice));
+    }
+
+    /**
+     * Handle the InvoiceTransaction "created" event.
+     */
+    public function created(InvoiceTransaction $invoice): void
+    {
+        event(new InvoiceTransactionEvent\Created($invoice));
+    }
+
+    /**
+     * Handle the InvoiceTransaction "updating" event.
+     */
+    public function updating(InvoiceTransaction $invoice): void
+    {
+        event(new InvoiceTransactionEvent\Updating($invoice));
+    }
+
+    /**
+     * Handle the InvoiceTransaction "updated" event.
+     */
+    public function updated(InvoiceTransaction $invoice): void
+    {
+        event(new InvoiceTransactionEvent\Updated($invoice));
+    }
+
+    /**
+     * Handle the InvoiceTransaction "deleted" event.
+     */
+    public function deleted(InvoiceTransaction $invoice): void
+    {
+        event(new InvoiceTransactionEvent\Deleted($invoice));
+    }
+}