56 lines
2.0 KiB
Python
56 lines
2.0 KiB
Python
from datetime import datetime, timezone
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from hashlib import md5
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from typing import Optional
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import sqlalchemy as sa
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import sqlalchemy.orm as so
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from flask_login import UserMixin
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from werkzeug.security import generate_password_hash, check_password_hash
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from app import db, login
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class User(UserMixin, db.Model):
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id: so.Mapped[int] = so.mapped_column(primary_key=True)
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username: so.Mapped[str] = so.mapped_column(sa.String(64), index=True,
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unique=True)
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email: so.Mapped[str] = so.mapped_column(sa.String(120), index=True,
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unique=True)
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password_hash: so.Mapped[Optional[str]] = so.mapped_column(sa.String(256))
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about_me: so.Mapped[Optional[str]] = so.mapped_column(sa.String(140))
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last_seen: so.Mapped[Optional[datetime]] = so.mapped_column(
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default=lambda: datetime.now(timezone.utc))
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posts: so.WriteOnlyMapped['Post'] = so.relationship(
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back_populates='author')
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def __repr__(self):
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return '<User {}>'.format(self.username)
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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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def avatar(self, size):
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digest = md5(self.email.lower().encode('utf-8')).hexdigest()
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return f'https://www.gravatar.com/avatar/{digest}?d=identicon&s={size}'
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@login.user_loader
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def load_user(id):
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return db.session.get(User, int(id))
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class Post(db.Model):
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id: so.Mapped[int] = so.mapped_column(primary_key=True)
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body: so.Mapped[str] = so.mapped_column(sa.String(140))
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timestamp: so.Mapped[datetime] = so.mapped_column(
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index=True, default=lambda: datetime.now(timezone.utc))
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user_id: so.Mapped[int] = so.mapped_column(sa.ForeignKey(User.id),
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index=True)
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author: so.Mapped[User] = so.relationship(back_populates='posts')
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def __repr__(self):
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return '<Post {}>'.format(self.body)
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