110 lines
3.4 KiB
Python
110 lines
3.4 KiB
Python
from app import db, login_manager
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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 datetime import datetime
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@login_manager.user_loader
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def load_user(id):
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"""載入用戶，用於 Flask-Login"""
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return User.query.get(int(id))
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class User(UserMixin, db.Model):
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"""用戶模型"""
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__tablename__ = 'user'
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# 基本欄位
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id = db.Column(db.Integer, primary_key=True)
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username = db.Column(db.String(64), unique=True, index=True, nullable=False, comment='用戶名')
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email = db.Column(db.String(120), unique=True, index=True, nullable=False, comment='電子郵件')
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password_hash = db.Column(db.String(128), comment='密碼雜湊')
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avatar_path = db.Column(db.String(200), nullable=True, comment='頭像路徑')
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# 時間相關欄位
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created_at = db.Column(db.DateTime, default=datetime.now, comment='創建時間')
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last_login = db.Column(db.DateTime, default=datetime.now, comment='最後登入時間')
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# 狀態欄位
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is_active = db.Column(db.Boolean, default=True, comment='是否啟用')
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is_admin = db.Column(db.Boolean, default=False, comment='是否為管理員')
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# 關聯關係
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posts = db.relationship('Post', backref='author', lazy='dynamic', cascade='all, delete-orphan')
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comments = db.relationship('Comment', backref='author', lazy='dynamic', cascade='all, delete-orphan')
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likes = db.relationship('Like', backref='user', lazy='dynamic', cascade='all, delete-orphan')
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def set_password(self, password: str) -> None:
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"""
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設置密碼
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Args:
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password: 原始密碼
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"""
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self.password_hash = generate_password_hash(password)
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def check_password(self, password: str) -> bool:
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"""
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驗證密碼
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Args:
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password: 待驗證的密碼
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Returns:
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bool: 密碼是否正確
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"""
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return check_password_hash(self.password_hash, password)
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def like_post(self, post) -> None:
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"""
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對文章按讚
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Args:
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post: 文章實例
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"""
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if not self.has_liked_post(post):
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from app.models.like import Like
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like = Like(user_id=self.id, post_id=post.id)
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db.session.add(like)
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def unlike_post(self, post) -> None:
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"""
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取消文章按讚
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Args:
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post: 文章實例
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"""
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from app.models.like import Like
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like = Like.query.filter_by(user_id=self.id, post_id=post.id).first()
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if like:
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db.session.delete(like)
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def has_liked_post(self, post) -> bool:
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"""
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檢查是否已對文章按讚
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Args:
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post: 文章實例
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Returns:
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bool: 是否已按讚
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"""
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from app.models.like import Like
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return Like.query.filter_by(user_id=self.id, post_id=post.id).first() is not None
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@property
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def posts_count(self) -> int:
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"""獲取發文總數"""
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return self.posts.count()
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@property
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def received_likes_count(self) -> int:
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"""獲取收到的總讚數"""
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from app.models.like import Like
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from app.models.post import Post
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return Like.query.join(Post).filter(Post.user_id == self.id).count()
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def __repr__(self) -> str:
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"""模型的字符串表示"""
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return f'<User {self.username}>'
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