Alternative for cumbersome ListField(EmbeddedDocumentField) in MongoEngine¶

In MongoEngine, we often need to store a list of embedded documents in one document. The traditional way is to use ListField(EmbeddedDocumentField(document_type)), which is a bit cumbersome.

Alternative¶

EmbeddedDocumentListField can make things easier. Here's an example.

Before:

from mongoengine import Document, ListField, EmbeddedDocumentField

class Post(Document):
    comments = ListField(EmbeddedDocumentField(Comment))

After:

from mongoengine import Document, EmbeddedDocumentListField

class Post(Document):
    comments = EmbeddedDocumentListField(Comment)