class Keys(db.Model):
id = db.Column(db.Integer, primary_key=True)
user_id = db.Column(db.Integer, nullable=False)
public_key = db.Column(db.LargeBinary, nullable=False, unique=True)
private_key = db.Column(db.LargeBinary, nullable=False, unique=True)
def __repr__(self):
return f"User('{self.user_id}', '{self.public_key}', '{self.private_key}')"
class Post(db.Model):
id = db.Column(db.Integer, primary_key=True)
title = db.Column(db.String(100), nullable=False)
date_posted = db.Column(db.DateTime,
nullable=False,
default=datetime.utcnow)
content = db.Column(db.Text, nullable=False)
user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
class Blockchain(db.Model):
node = db.Column(db.Integer, primary_key=True)
user_id = db.Column(db.Integer, nullable=False)
doctor_id = db.Column(db.Integer, nullable=False)
ehr = db.Column(db.String(50), nullable=False)
hash = db.Column(db.String(50), nullable=False)
prev_hash = db.Column(db.String, nullable=False)
nonce = db.Column(db.BigInteger, nullable=False)
tstamp = db.Column(db.DateTime, nullable=False, default=datetime.utcnow)
class User(db.Model, UserMixin):
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(50), nullable=False)
username = db.Column(db.String(20), unique=True, nullable=False)
email = db.Column(db.String(120), unique=True, nullable=False)
image_file = db.Column(db.String(20),
nullable=False,
default='default.jpg')
password = db.Column(db.String(60), nullable=False)
user_posts = db.relationship('Post', backref='user', lazy=True)
ehrs = db.relationship('Ehr', backref='user_ehr', lazy=True)
role = db.Column(db.String(10), nullable=False, default="User")
def get_reset_token(self, expires_sec=1800):
s = Serializer(current_app.config['SECRET_KEY'], expires_sec)
return s.dumps({'user_id': self.id}).decode('utf-8')
@staticmethod
def verify_reset_token(token):
s = Serializer(current_app.config['SECRET_KEY'])
try:
user_id = s.loads(token)['user_id']
except:
return None
return User.query.get(user_id)
def __repr__(self):
return f"User('{self.username}', '{self.email}', '{self.image_file}')"
class Ehr(db.Model):
id = db.Column(db.Integer, primary_key=True)
date_posted = db.Column(db.DateTime,
nullable=False,
default=datetime.utcnow)
user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
doctor_id = db.Column(db.Integer, nullable=False)
diseases1 = db.Column(db.String(20))
diseases2 = db.Column(db.String(20))
diseases3 = db.Column(db.String(20))
test_or_med1 = db.Column(db.String(20))
causes1 = db.Column(db.String(50))
test_or_med2 = db.Column(db.String(20))
causes2 = db.Column(db.String(50))
test_or_med3 = db.Column(db.String(20))
causes3 = db.Column(db.String(50))
test_or_med4 = db.Column(db.String(20))
causes4 = db.Column(db.String(50))
test_or_med5 = db.Column(db.String(20))
causes5 = db.Column(db.String(50))
test_or_med6 = db.Column(db.String(20))
causes6 = db.Column(db.String(50))
test_or_med7 = db.Column(db.String(20))
causes7 = db.Column(db.String(50))
def __repr__(self):
return f"EHR('{self.doctor_id}', '{self.user_id}', '{self.date_posted}')"
class SignedEhr(db.Model):
id = db.Column(db.Integer, primary_key=True)
diseases1 = db.Column(db.LargeBinary)
diseases2 = db.Column(db.LargeBinary)
diseases3 = db.Column(db.LargeBinary)
test_or_med1 = db.Column(db.LargeBinary)
causes1 = db.Column(db.LargeBinary)
test_or_med2 = db.Column(db.LargeBinary)
causes2 = db.Column(db.LargeBinary)
test_or_med3 = db.Column(db.LargeBinary)
causes3 = db.Column(db.LargeBinary)
test_or_med4 = db.Column(db.LargeBinary)
causes4 = db.Column(db.LargeBinary)
test_or_med5 = db.Column(db.LargeBinary)
causes5 = db.Column(db.LargeBinary)
test_or_med6 = db.Column(db.LargeBinary)
causes6 = db.Column(db.LargeBinary)
test_or_med7 = db.Column(db.LargeBinary)
causes7 = db.Column(db.LargeBinary)