title: set every single form readonly without using widgets in the model
body: <p>I am trying to build a template with some forms. I have a model with about 400 attributes for one entity. Now i want to make two different templates. In one Template the attributes should be listed like django form do. In the other template the attributes should be set readonly. </p>
  
  <p>I don't want to create two diffent Forms for every attribute by using widgets.</p>
  
  <pre><code>cust_form = GeneralDataForm(instance=_customer, auto_id=False, label_suffix='')
  </code></pre>
  
  <p>I tried inserting the widget here but it doesn't work. </p>