67 lines
1.9 KiB
Python
67 lines
1.9 KiB
Python
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from flask_login import UserMixin
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from flask_sqlalchemy import SQLAlchemy
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from sqlalchemy.orm import relationship
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from werkzeug.security import generate_password_hash, check_password_hash
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from sqlalchemy import UniqueConstraint
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import hashlib
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import os
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db = SQLAlchemy()
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class Seller(UserMixin, db.Model):
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__tablename__ = 'sellers'
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id = db.Column(db.Integer, primary_key=True)
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username = db.Column(db.String(64), index=True, unique=True)
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password_hash = db.Column(db.String(128))
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def set_password(self, password):
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self.password_hash = generate_password_hash(password)
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def check_password(self, password):
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return check_password_hash(self.password_hash, password)
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class Purchase(db.Model):
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__tablename__ = 'purchases'
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id = db.Column(db.String(64), primary_key=True)
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seller_id = db.Column(db.Integer, db.ForeignKey('sellers.id'))
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total_numbers = db.Column(db.Integer, default=0)
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numbers_left = db.Column(db.Integer, default=0)
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remarks = db.Column(db.Text)
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def generate_id(self):
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self.id = hashlib.sha256(os.urandom(60)).hexdigest()
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def decrease_numbers(self):
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if self.numbers_left > 0:
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self.numbers_left -= 1
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else:
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raise Exception('No numbers left for this purchase')
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class Raffle(db.Model):
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__tablename__ = 'raffles'
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id = db.Column(db.Integer, primary_key=True)
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description = db.Column(db.String(128))
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class Ticket(db.Model):
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__tablename__ = 'tickets'
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id = db.Column(db.Integer, primary_key=True)
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purchase_id = db.Column(db.String(64), db.ForeignKey('purchases.id'))
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raffle_id = db.Column(db.Integer, db.ForeignKey('raffles.id'))
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buyer_name = db.Column(db.String(64))
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buyer_contact = db.Column(db.String(64))
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chosen_number = db.Column(db.Integer)
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raffle = relationship(Raffle)
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__table_args__ = (
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UniqueConstraint('raffle_id', 'chosen_number', name='unique_raffle_number'),
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)
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