title: Django-Admin: CharField as TextArea
body: <p>I have </p>
  
  <pre><code>class Cab(models.Model):
      name  = models.CharField( max_length=20 )
      descr = models.CharField( max_length=2000 )
  
  class Cab_Admin(admin.ModelAdmin):
      ordering     = ('name',)
      list_display = ('name','descr', )
      # what to write here to make descr using TextArea?
  
  admin.site.register( Cab, Cab_Admin )
  </code></pre>
  
  <p>how to assign TextArea widget to 'descr' field in admin interface?</p>
  
  <p><strong>upd:</strong><br>
  In <strong>Admin</strong> interface only!</p>
  
  <p>Good idea to use ModelForm.</p>