How to call methods on Nested InnerDoc objects?

I have a Document class with Nested objects, and I’d like to call validation methods on those Nested objects. What’s the best way to do that? Here is a simple example that shows what I am trying to do:

class AddressParts(InnerDoc):
  house_number = Integer(required=True)
  street_name = Keyword(required=True)
  city_name = Keyword(required=True)

  def validate(self):
    if house_number < 0:
	  raise RuntimeError('Ooops this isn't a valid house number!')

class AddressData(InnerDoc):
  address = Nested(AddressParts, required=True)
  def validate(self):
    address.validate()

class House(Document):
  address_data = Nested(AddressData, required=True)

  def validate(self):
    address_data.validate()

Because the fields are dicts, I then tried converting them to their objects like this:

  def validate(self):
    AddressData(address_data.to_dict()).validate()

I get an error though AttributeError: 'list' object has no attribute 'to_dict' … so I’m curious what the best approach is for what I’m trying to do?

Thanks! Anna

[annawinkler]

@HonzaKral I’m happy to contribute to the docs then 😃

[honzakral]

I created a PR in your repo which shows the API how it works in https://github.com/annawinkler/es_address_book/pull/1

Also note that Nested is meant to be used only when a list of objects is expected, if you expect to only have one address use Object instead and then you can skip the list in the example (just House(address=AddressData(...)))

I also implemented a clean method which is a built-in (undocumented, my bad!) hook for users to add their own validation logic like you have done.

Hope this helps!