Undefined document fields should not override instance methods

[thomasst]

Mongoengine should not set attributes and potentially override instance methods when initializing a model with fields that are not defined in the document structure. For example, the following code should either trigger an error when creating the document, or create the document silently while keeping the instance method and print hello as expected:

from mongoengine import Document

class Doc(Document):
    def method(self):
        return 'hello'

doc = Doc(method='something')
print doc.method()

Similarly, when a document of the structure { "method": "something" } exists in the database, loading that document (e.g. using get()) should not override the instance method.

[philfreo]

+1

[thomasst]

Any plans on fixing this?

[rozza]

Yes, its assigned to the 0.8 release - which is in active development. Of course pull requests help things get implemented in a more timely fashion ;)

[rozza]

Looking into implementing this today.

[rozza]

Apologies for taking so long but this is now in the 0.8 branch - any undefined data will be put in document._data

[thomasst]

Thanks! :)