staff message add permission

database/migrations/2022_08_22_030816_add_permission_to_staffmessages_table.php

@@ -0,0 +1,32 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('staffmessages', function (Blueprint $table) {
+            $table->string('permission')->nullable(false)->default('')->index();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('staffmessages', function (Blueprint $table) {
+            $table->dropColumn('permission');
+        });
+    }
+};