Django class-based CreateView and UpdateView with multiple inline formsets

Question

I have been trying to do Django class-based CreateView and UpdateView with multiple inline formsets

CreateView works fine but UpdateView is not working properly, If

Answer 1

So I recognize the models form this post. To get UpdateView working properly you are going to have to do at least two, maybe three things:

1. Update the self.object = self.get_object() -- after that, your ability to dynamically add should work.

2. To get the dynamic deletes updating properly, you will need to alter the template with form.DELETE (in two places, the ingredients and the instructions).

   {{ form.description }}
   {% if form.instance.pk %}{{ form.DELETE }}{% endif %}
   

3. Not sure it was necessary but I added can_delete to the factory too.

   IngredientFormSet = inlineformset_factory(Recipe, Ingredient, fields=('description',), extra=3, can_delete=True)
   InstructionFormSet = inlineformset_factory(Recipe, Instruction, fields=('number', 'description',), extra=1, can_delete=True)