  
  MAX_INSTANCES = 10
  
  class MyModel(models.Model):
      foo = models.BooleanField(required=False)
      bar = models.IntegerField(help_text='Must be an integer.')
      baz = models.CharField(max_length=32, help_text='Free text.  Max length 32 chars.')
      created = models.DateTimeField(auto_now_add=True)
      
      class Meta:
 
</s> remove     foo = forms.BooleanField()
 </s> add     foo = forms.BooleanField(required=False)
    foo = models.BooleanField()
  
  MAX_INSTANCES = 10
  
  class MyModel(models.Model):
    foo = models.BooleanField()
      bar = models.IntegerField(help_text='Must be an integer.')
      baz = models.CharField(max_length=32, help_text='Free text.  Max length 32 chars.')
      created = models.DateTimeField(auto_now_add=True)
      
      class Meta:
keep keep keep keep replace keep keep keep keep keep
 BlogPosts > 10 rotation implemeneted
Latest Modelresource example is broken. Required attribute should be set to form, not model. Is fixed. 
examples/modelresourceexample/models.py