title: Get checkbox checked after laravel validation error
body: <p>I need to keep the checked checkboxes in the form as checked after I get the validation errors in the Controller.</p>
  
  <p>Actually I find quite horrendous my implementation of the checkboxes in my form.</p>
  
  <p>Could you please provide some advise? Thanks</p>
  
  <pre><code>&lt;div class="form-group"&gt;
                  {!! Form::label('call', 'Llamar:', ['class' =&gt; 'control-label']) !!}
                  {!! Form::checkbox('call', isset($category)?(bool)$category-&gt;call:true, ['class' =&gt; 'form-control']) !!}
              &lt;/div&gt;
  </code></pre>