from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker

from database_setup import Category, Base, Item, User, engine

# Bind the engine to the metadata of the Base class so that the
# declaratives can be accessed through a DBSession instance
Base.metadata.bind = engine

DBSession = sessionmaker(bind=engine)
# A DBSession() instance establishes all conversations with the database
# and represents a "staging zone" for all the objects loaded into the
# database session object. Any change made against the objects in the
# session won't be persisted into the database until you call
# session.commit(). If you're not happy about the changes, you can
# revert all of them back to the last commit by calling
# session.rollback()
session = DBSession()


categories = ("Women's Shoes", "Men's Shoes", "Casual Shoes",
              "Dress Shoes", "Boots", "Canvas Shoes")

for category in categories:
    newCategory = Category(name=category)
    session.add(newCategory)
    session.commit()

print("added Categories")
