from sqlalchemy import create_engine, Column, Integer, String
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker


Base = declarative_base()


class Listing(Base):
    __tablename__ = 'listings'

    id = Column(Integer, primary_key=True)
    craigslist_id = Column(String, unique=True)
    url = Column(String, unique=True)


engine = create_engine('sqlite:///apartments.db')
Base.metadata.create_all(engine)

Session = sessionmaker(bind=engine)
session = Session()

from sqlalchemy import create_engine, Column, DateTime, Integer, String
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker
from sqlalchemy.sql import func


Base = declarative_base()


class Listing(Base):
    __tablename__ = 'listings'

    id = Column(Integer, primary_key=True)
    timestamp = Column(DateTime, server_default=func.now())
    craigslist_id = Column(String, unique=True)
    url = Column(String, unique=True)


engine = create_engine('sqlite:///apartments.db')
Base.metadata.create_all(engine)

Session = sessionmaker(bind=engine)
session = Session()

Add timestamp field to Listing
Add timestamp field to Listing

- from sqlalchemy import create_engine, Column, Integer, String
+ from sqlalchemy import create_engine, Column, DateTime, Integer, String
  from sqlalchemy.ext.declarative import declarative_base
  from sqlalchemy.orm import sessionmaker
+ from sqlalchemy.sql import func
  
  
  Base = declarative_base()
  
  
  class Listing(Base):
      __tablename__ = 'listings'
  
      id = Column(Integer, primary_key=True)
+     timestamp = Column(DateTime, server_default=func.now())
      craigslist_id = Column(String, unique=True)
      url = Column(String, unique=True)
  
  
  engine = create_engine('sqlite:///apartments.db')
  Base.metadata.create_all(engine)
  
  Session = sessionmaker(bind=engine)
  session = Session()
  
Add timestamp field to Listing
## Code Before:
from sqlalchemy import create_engine, Column, Integer, String
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker


Base = declarative_base()


class Listing(Base):
    __tablename__ = 'listings'

    id = Column(Integer, primary_key=True)
    craigslist_id = Column(String, unique=True)
    url = Column(String, unique=True)


engine = create_engine('sqlite:///apartments.db')
Base.metadata.create_all(engine)

Session = sessionmaker(bind=engine)
session = Session()

## Instruction:
Add timestamp field to Listing
## Code After:
from sqlalchemy import create_engine, Column, DateTime, Integer, String
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker
from sqlalchemy.sql import func


Base = declarative_base()


class Listing(Base):
    __tablename__ = 'listings'

    id = Column(Integer, primary_key=True)
    timestamp = Column(DateTime, server_default=func.now())
    craigslist_id = Column(String, unique=True)
    url = Column(String, unique=True)


engine = create_engine('sqlite:///apartments.db')
Base.metadata.create_all(engine)

Session = sessionmaker(bind=engine)
session = Session()
