class Author(db.Model):
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(100),unique=True)
info = db.Column(db.Text)
img = db.Column(db.String(100))
books = db.relationship('Book', secondary=author_book_relationship, backref=db.backref('authors'))
def __repr__(self):
return f"Author( name: '{self.name}' )"
class CreditCard(db.Model):
id = db.Column(db.Integer, primary_key=True)
card_type = db.Column(db.String(20))
# I actually don't know if this cvv attribute shoult be a string or an Integer
card_number = db.Column(db.String(20), unique=True)
cvv = db.Column(db.Integer)
exp_date = db.Column(db.Date)
user_id = db.Column(db.Integer, db.ForeignKey('user.id'))
def __repr__(self):
return f"CreditCard( card_number: '{self.card_number[:4]}', user: '******')"
class User(db.Model):
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(30), nullable=False)
username = db.Column(db.String(20), unique=True, nullable=False)
email = db.Column(db.String(120), unique=True, nullable=False)
password = db.Column(db.String(60), nullable=False)
address = db.Column(db.String, nullable=False)
orders = db.relationship('Order', backref='user', lazy=True)
comments = db.relationship('Comment',
backref=db.backref('user'),
lazy=True)
def __repr__(self):
return f"User( email: '{self.email}', username: '******')"
class Book(db.Model):
isbn = db.Column(db.BigInteger, primary_key=True)
title = db.Column(db.String(100), unique=True, nullable=False)
date_pub = db.Column(db.Date)
genre = db.Column(db.String(100))
rating = db.Column(db.Integer)
price = db.Column(db.Float)
img = db.Column(db.String(100))
pub_info = db.Column(db.Text)
book_description = db.Column(db.Text)
comments = db.relationship('Comment',
backref=db.backref('book'),
lazy=True)
def __repr__(self):
return f"Book( titel: '{self.title}' )"
class Author(db.Model):
name = db.Column(db.String(100), primary_key=True)
info = db.Column(db.Text, nullable=False)
books = db.relationship('Book',
secondary=publish,
backref=db.backref('authors'))
def __repr__(self):
return f"Author( name: '{self.name}' )"
from geektext import db
#relationship table between Author and Book. since it is a many to many relaitonship we need a new table called publish
publish = db.Table(
'publish',
db.Column('book_isbn',
db.BigInteger,
db.ForeignKey('book.isbn'),
primary_key=True),
db.Column('author_name',
db.String(100),
db.ForeignKey('author.name'),
primary_key=True))
class Author(db.Model):
name = db.Column(db.String(100), primary_key=True)
info = db.Column(db.Text, nullable=False)
books = db.relationship('Book',
secondary=publish,
backref=db.backref('authors'))
def __repr__(self):
return f"Author( name: '{self.name}' )"
transactions = db.Table(
'transactions',
db.Column('book_isbn',
db.BigInteger,
from enum import unique
from geektext import db, login_manager
from flask_login import UserMixin
@login_manager.user_loader
def load_user(user_id):
return User.query.get(int(user_id))
#author_book_relationship is a table with two columns book_isbn and author_name
#it relates a book with the author that wrote it
author_book_relationship = db.Table('author_book_relationship',
db.Column('book_isbn', db.BigInteger, db.ForeignKey('book.isbn'), primary_key=True),
db.Column('author_name', db.String(100), db.ForeignKey('author.name'), primary_key=True)
)
#Author is a table that contains every author in the database
#The attributes are: name, info, and books
class Author(db.Model):
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(100),unique=True)
info = db.Column(db.Text)
img = db.Column(db.String(100))
books = db.relationship('Book', secondary=author_book_relationship, backref=db.backref('authors'))
def __repr__(self):
return f"Author( name: '{self.name}' )"
#order_book_relationship is a table that relates an order with the books that is contains