Step 5: Validation

Add following validation code under contact controller store () method.

$this->validate($request, [

           'first_name' => 'required',

           'last_name' => 'required',

           'email' => 'required',

           'city' => 'required',

           'country' => 'required',

           'feedback' => 'required',

       ]);

After that, in the view show if any errors

@if($errors->any())

   <div class="alert alert-danger">

       @foreach($errors->all() as $error)

           <p>{{ $error }}</p>

       @endforeach

   </div>

@endif

For more about controller validation - https://grails.com/docs/5.0/validation#controller-validation