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database.py
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database.py
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from sqlalchemy import Column, ForeignKey, Integer, String, create_engine
from sqlalchemy.orm import relationship
from sqlalchemy.ext.declarative import declarative_base
DATABASE_URL = 'postgres://uzpzbcmbkcdqhr:Bi9f0Q7OYDnb9AR3HiHBqwq8_S' + \
'@ec2-54-204-3-188.compute-1.amazonaws.com:5432/d7q2e' + \
'acsp9ckel'
Base = declarative_base()
engine = create_engine(DATABASE_URL)
class User(Base):
__tablename__ = 'appuser' # 'user' is used internally by postgresql
name = Column(String(80), nullable=False)
email = Column(String(80), nullable=False)
id = Column(Integer, primary_key=True)
class City(Base):
__tablename__ = 'city'
name = Column(String(80), nullable=False)
id = Column(Integer, primary_key=True)
user_id = Column(Integer, ForeignKey('appuser.id'))
books = relationship("Book", cascade="delete")
@property
def serialize(self):
return {
'id' : self.id,
'name' : self.name
}
class Book(Base):
__tablename__ = 'book'
title = Column(String(80), nullable=False)
author = Column(String(80), nullable=False)
id = Column(Integer, primary_key=True)
city_id = Column(Integer, ForeignKey('city.id'))
owner_id = Column(Integer, ForeignKey('appuser.id'))
requestor_id = Column(Integer, ForeignKey('appuser.id'))
requestor_comment = Column(String(400))
status = Column(String(80), nullable=False)
image_url=Column(String(400), nullable="True")
@property
def serialize(self):
return {
'id' : self.id,
'title' : self.title,
'author': self.author,
'city_id' : self.city_id,
'status' : self.status,
'image_url' : self.image_url
}
Base.metadata.create_all(engine)