class Listing(DB.Model):
"""
Database table for listings.
"""
id = DB.Column(DB.Integer, primary_key=True, autoincrement=True)
neighborhood = DB.Column(DB.Unicode(30), nullable=False)
room_type = DB.Column(DB.Unicode(20), nullable=False)
min_nights = DB.Column(DB.Integer, nullable=True)
num_reviews = DB.Column(DB.Integer, nullable=True)
listings_count = DB.Column(DB.Integer, nullable=True)
availability_365 = DB.Column(DB.Integer, nullable=True)
last_review = DB.Column(DB.Integer, nullable=True)
price = DB.Column(DB.Float, nullable=False)
time = DB.Column(DB.DateTime,
nullable=False,
default=datetime.datetime.utcnow)
