fix booking internal server error due to db not accepting null value

fixed copy right on booking form
update notification seeder

database/migrations/2018_08_08_103115_make_nullable_in_bookings_table.php

@@ -0,0 +1,37 @@
+<?php
+
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class MakeNullableInBookingsTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('bookings', function (Blueprint $table) {
+            $table->string('company_name')->nullable()->change();
+            $table->string('company_address')->nullable()->change();
+            $table->string('bank_address')->nullable()->change();
+            $table->string('swift_code')->nullable()->change();
+            $table->string('cnap')->nullable()->change();
+            $table->string('term')->nullable()->change();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('bookings', function (Blueprint $table) {
+            //
+        });
+    }
+}

database/seeds/NotificationSeeder.php

@@ -19,7 +19,7 @@ class NotificationSeeder extends Seeder
         DB::table('notifications')->insert([
             'detail' => 'This is an user seeder notification',
             'user_id' => $user->id,
-            'link' => 'http://www.google.com',
+            'link' => '/',
             'created_at' => Carbon::now()->format('Y-m-d H:i:s'),
             'updated_at' => Carbon::now()->format('Y-m-d H:i:s'),
         ]);
@@ -27,7 +27,7 @@ class NotificationSeeder extends Seeder
         DB::table('notifications')->insert([
             'detail' => 'This is an admin seeder notification',
             'user_id' => $admin->id,
-            'link' => 'http://www.google.com',
+            'link' => '/',
             'created_at' => Carbon::now()->format('Y-m-d H:i:s'),
             'updated_at' => Carbon::now()->format('Y-m-d H:i:s'),
         ]);