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You'll also note the use of EmailField, BinaryField FloatField and BooleanField which we've used to define the data type we expect for their respective field. date_created = DateTimeField(default=datetime.utcnow) - default=datetime.utcnow will create a utcnow datetime object on creation of the document.bio = StringField(max_length=100) - We've used max_length=100 to set a maximum length of the user bio.admin = BooleanField(default=False) - We've set default=False in the admin field as it's something that should be explicitly set as True.username = StringField(required=True, unique=True) - We've set required and unique to True as the username value must provided and be unique.
#Simple mongodb python example password
We start out by creating a new class which inherits from Document and create a few class attributes:Ĭlass User ( Document ): username = StringField ( required = True, unique = True ) email = EmailField ( required = True ) password = BinaryField ( required = True ) first_name = StringField () last_name = StringField () age = IntField () bio = StringField ( max_length = 100 ) categories = ListField () admin = BooleanField ( default = False ) registered = BooleanField ( default = False ) rating = FloatField ( default = 0.0 ) page_views = IntField ( default = 0 ) signed_in = BooleanField ( default = False ) last_sign_in = DateTimeField () date_created = DateTimeField ( default = datetime. In this example, we'll create a new schema for a user of a web application:
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ReferenceField - Accepts a reference to another document.
![simple mongodb python example simple mongodb python example](https://i.ytimg.com/vi/qCQmdiD6zH4/maxresdefault.jpg)
DateTimeField - Accepts Datetime values.Mongoengine features over 30, pre-defined fields which we can use for validation, including: Tip - Use environment variables or a configuration file (outside of source control) to access the database credentials Document schemaĭefining a document schema with Mongoengine is as easy as creating a new class and using some of the Mongoengine fields to validate the document values. Connect ( db = "demo-db", username = "root", password = "example", authentication_source = "admin", host = "localhost", port = 27017 )