I have a scenario where i need to create a clone of few products in my mongoDB. I use the following code
for single_product in survey_products:
cloned_product = without_keys(single_product, {'_id'})
cloned_product_doc = Product(**cloned_product)
cloned_product_doc.save()
print(cloned_product_doc.id)
print(cloned_product_doc._id)
This creates the records properly which is alright, but in both the print functions, i get None even though i call cloned_product_doc.save() prior to accessing the IDs
How can i get the ID of the new entries?
EDITED
Here is the model definition
class Product(Document):
# model
_id = ObjectIdField()
photo = StringField()
name = StringField()
price = FloatField()
currency = StringField()
class Meta:
db_table = 'product'
Edit the model definition like below, make sure you define the ObjectId as the default
.........................
from mongoengine import *
from bson import ObjectId
#import objectID to use as default
class Product(Document):
# model
_id = ObjectIdField(default=ObjectId) # mention default as ObjectId
photo = StringField()
name = StringField()
price = FloatField()
currency = StringField()
class Meta:
db_table = 'product'
Under normal usage, Mongoengine adds the id to the instance when you call .save().
from mongoengine import *
connect()
class MyDoc(Document):
# Mongoengine adds an id = ObjectIdField if no 'id' is provided
s = StringField()
doc = MyDoc(s='garbage').save()
print(doc.id) # e.g 600df8c3d87af06b92725f87
I would suggest to inspect what is in your cloned_product. Perhaps there is a remaining 'id' key or something that interferes with default behavior