mobile . themes
This commit is contained in:
67
models.py
67
models.py
@@ -1,6 +1,11 @@
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# models.py
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from flask_sqlalchemy import SQLAlchemy
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from datetime import datetime
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from datetime import datetime, timezone, timedelta
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_beijing_tz = timezone(timedelta(hours=8))
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def beijing_now():
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return datetime.now(_beijing_tz).replace(tzinfo=None)
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import json
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db = SQLAlchemy()
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@@ -17,7 +22,7 @@ class User(db.Model):
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is_banned = db.Column(db.Boolean, default=False)
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completed_exams = db.Column(db.Integer, default=0) # 已完成并批改的考试次数
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name_changed_at = db.Column(db.DateTime, nullable=True) # 上次修改用户名时间
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created_at = db.Column(db.DateTime, default=datetime.utcnow)
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created_at = db.Column(db.DateTime, default=beijing_now)
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# 关系
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exams_created = db.relationship('Exam', back_populates='creator', lazy=True)
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@@ -39,7 +44,7 @@ class ContestMembership(db.Model):
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user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
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contest_id = db.Column(db.Integer, db.ForeignKey('contest.id'), nullable=False)
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role = db.Column(db.String(20), nullable=False) # 'owner' 或 'teacher'
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joined_at = db.Column(db.DateTime, default=datetime.utcnow)
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joined_at = db.Column(db.DateTime, default=beijing_now)
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user = db.relationship('User', back_populates='contest_memberships')
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contest = db.relationship('Contest', back_populates='members')
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@@ -55,7 +60,7 @@ class ContestApplication(db.Model):
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description = db.Column(db.Text)
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contact = db.Column(db.String(100))
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status = db.Column(db.String(20), default='pending') # pending, approved, rejected
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applied_at = db.Column(db.DateTime, default=datetime.utcnow)
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applied_at = db.Column(db.DateTime, default=beijing_now)
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reviewed_at = db.Column(db.DateTime)
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total_score = db.Column(db.Integer, default=150) # 杯赛默认满分
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start_date = db.Column(db.String(20)) # 申请时填写的开始日期
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@@ -78,7 +83,7 @@ class ContestRegistration(db.Model):
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id = db.Column(db.Integer, primary_key=True)
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user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
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contest_id = db.Column(db.Integer, db.ForeignKey('contest.id'), nullable=False)
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registered_at = db.Column(db.DateTime, default=datetime.utcnow)
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registered_at = db.Column(db.DateTime, default=beijing_now)
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__table_args__ = (db.UniqueConstraint('user_id', 'contest_id', name='uq_user_contest_reg'),)
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@@ -93,7 +98,7 @@ class Contest(db.Model):
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status = db.Column(db.String(20), default='upcoming')
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participants = db.Column(db.Integer, default=0)
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created_by = db.Column(db.Integer, db.ForeignKey('user.id'))
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created_at = db.Column(db.DateTime, default=datetime.utcnow)
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created_at = db.Column(db.DateTime, default=beijing_now)
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past_papers = db.Column(db.Text) # JSON 存储历年真题 [{year, title, file}]
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total_score = db.Column(db.Integer, default=150) # 杯赛默认考试满分
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visible = db.Column(db.Boolean, default=True) # 是否对普通用户可见
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@@ -125,7 +130,7 @@ class QuestionBankItem(db.Model):
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options = db.Column(db.Text) # JSON，选择题选项
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answer = db.Column(db.Text) # 答案
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score = db.Column(db.Integer, default=10) # 建议分值
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created_at = db.Column(db.DateTime, default=datetime.utcnow)
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created_at = db.Column(db.DateTime, default=beijing_now)
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contest = db.relationship('Contest', backref='question_bank_items')
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contributor = db.relationship('User', backref='contributed_questions')
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@@ -146,7 +151,7 @@ class Exam(db.Model):
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scheduled_start = db.Column(db.DateTime, nullable=True) # 预定开始时间
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scheduled_end = db.Column(db.DateTime, nullable=True) # 预定结束时间
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score_release_time = db.Column(db.DateTime, nullable=True) # 成绩公布时间
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created_at = db.Column(db.DateTime, default=datetime.utcnow)
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created_at = db.Column(db.DateTime, default=beijing_now)
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status = db.Column(db.String(20), default='available')
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visibility = db.Column(db.String(20), default='private') # 'private' 或 'public'
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@@ -170,7 +175,7 @@ class Submission(db.Model):
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question_scores = db.Column(db.Text) # JSON
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graded = db.Column(db.Boolean, default=False)
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graded_by = db.Column(db.String(80))
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submitted_at = db.Column(db.DateTime, default=datetime.utcnow)
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submitted_at = db.Column(db.DateTime, default=beijing_now)
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exam = db.relationship('Exam', back_populates='submissions')
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user = db.relationship('User', back_populates='submissions')
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@@ -193,7 +198,7 @@ class Draft(db.Model):
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exam_id = db.Column(db.Integer, db.ForeignKey('exam.id'))
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user_id = db.Column(db.Integer, db.ForeignKey('user.id'))
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answers = db.Column(db.Text) # JSON
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saved_at = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
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saved_at = db.Column(db.DateTime, default=beijing_now, onupdate=beijing_now)
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exam = db.relationship('Exam', back_populates='drafts')
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user = db.relationship('User', back_populates='drafts')
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@@ -219,8 +224,8 @@ class Post(db.Model):
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has_poll = db.Column(db.Boolean, default=False)
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images = db.Column(db.Text) # JSON
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contest_id = db.Column(db.Integer, db.ForeignKey('contest.id'), nullable=True)
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created_at = db.Column(db.DateTime, default=datetime.utcnow)
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updated_at = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
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created_at = db.Column(db.DateTime, default=beijing_now)
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updated_at = db.Column(db.DateTime, default=beijing_now, onupdate=beijing_now)
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author = db.relationship('User', back_populates='posts')
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replies = db.relationship('Reply', back_populates='post', lazy=True, cascade='all, delete-orphan')
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@@ -243,8 +248,8 @@ class Reply(db.Model):
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content = db.Column(db.Text, nullable=False)
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likes = db.Column(db.Integer, default=0)
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reply_to = db.Column(db.String(80))
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created_at = db.Column(db.DateTime, default=datetime.utcnow)
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updated_at = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
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created_at = db.Column(db.DateTime, default=beijing_now)
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updated_at = db.Column(db.DateTime, default=beijing_now, onupdate=beijing_now)
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post = db.relationship('Post', back_populates='replies')
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author = db.relationship('User', back_populates='replies')
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@@ -259,7 +264,7 @@ class Poll(db.Model):
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voters = db.Column(db.Text) # JSON
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multi = db.Column(db.Boolean, default=False)
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total_votes = db.Column(db.Integer, default=0)
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created_at = db.Column(db.DateTime, default=datetime.utcnow)
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created_at = db.Column(db.DateTime, default=beijing_now)
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post = db.relationship('Post', back_populates='poll')
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@@ -282,7 +287,7 @@ class Reaction(db.Model):
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post_id = db.Column(db.Integer, db.ForeignKey('post.id'), nullable=True)
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reply_id = db.Column(db.Integer, db.ForeignKey('reply.id'), nullable=True)
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reaction = db.Column(db.String(20))
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created_at = db.Column(db.DateTime, default=datetime.utcnow)
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created_at = db.Column(db.DateTime, default=beijing_now)
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user = db.relationship('User', back_populates='reactions')
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post = db.relationship('Post', back_populates='reactions')
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@@ -298,7 +303,7 @@ class Bookmark(db.Model):
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id = db.Column(db.Integer, primary_key=True)
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user_id = db.Column(db.Integer, db.ForeignKey('user.id'))
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post_id = db.Column(db.Integer, db.ForeignKey('post.id'))
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created_at = db.Column(db.DateTime, default=datetime.utcnow)
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created_at = db.Column(db.DateTime, default=beijing_now)
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user = db.relationship('User', back_populates='bookmarks')
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post = db.relationship('Post', back_populates='bookmarks')
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@@ -314,7 +319,7 @@ class Report(db.Model):
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reason = db.Column(db.String(100))
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detail = db.Column(db.Text)
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status = db.Column(db.String(20), default='pending')
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created_at = db.Column(db.DateTime, default=datetime.utcnow)
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created_at = db.Column(db.DateTime, default=beijing_now)
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# reporter 已在 User 中通过 backref 定义
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@@ -327,7 +332,7 @@ class Notification(db.Model):
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from_user = db.Column(db.String(80))
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post_id = db.Column(db.Integer, nullable=True)
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read = db.Column(db.Boolean, default=False)
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created_at = db.Column(db.DateTime, default=datetime.utcnow)
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created_at = db.Column(db.DateTime, default=beijing_now)
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# user 已在 User 中通过 backref 定义
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@@ -338,8 +343,8 @@ class SystemNotification(db.Model):
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content = db.Column(db.Text, nullable=False)
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author_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
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pinned = db.Column(db.Boolean, default=False)
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created_at = db.Column(db.DateTime, default=datetime.utcnow)
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updated_at = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
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created_at = db.Column(db.DateTime, default=beijing_now)
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updated_at = db.Column(db.DateTime, default=beijing_now, onupdate=beijing_now)
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author = db.relationship('User', backref='system_notifications')
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@@ -350,7 +355,7 @@ class EditHistory(db.Model):
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title = db.Column(db.String(200))
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content = db.Column(db.Text)
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edited_by = db.Column(db.String(80))
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edited_at = db.Column(db.DateTime, default=datetime.utcnow)
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edited_at = db.Column(db.DateTime, default=beijing_now)
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post = db.relationship('Post')
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@@ -364,7 +369,7 @@ class TeacherApplication(db.Model):
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email = db.Column(db.String(120), nullable=False) # 申请人邮箱
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reason = db.Column(db.Text, nullable=False) # 申请理由
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status = db.Column(db.String(20), default='pending') # pending, approved, rejected
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applied_at = db.Column(db.DateTime, default=datetime.utcnow)
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applied_at = db.Column(db.DateTime, default=beijing_now)
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reviewed_at = db.Column(db.DateTime)
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reviewed_by = db.Column(db.Integer, db.ForeignKey('user.id'))
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# 拒绝次数控制
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@@ -384,7 +389,7 @@ class Friend(db.Model):
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user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
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friend_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
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status = db.Column(db.String(20), default='pending') # pending, accepted
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created_at = db.Column(db.DateTime, default=datetime.utcnow)
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created_at = db.Column(db.DateTime, default=beijing_now)
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user = db.relationship('User', foreign_keys=[user_id], backref=db.backref('friends_initiated', lazy='dynamic'))
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friend = db.relationship('User', foreign_keys=[friend_id], backref=db.backref('friends_received', lazy='dynamic'))
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@@ -394,7 +399,7 @@ class ExamBookmark(db.Model):
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id = db.Column(db.Integer, primary_key=True)
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user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
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exam_id = db.Column(db.Integer, db.ForeignKey('exam.id'), nullable=False)
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created_at = db.Column(db.DateTime, default=datetime.utcnow)
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created_at = db.Column(db.DateTime, default=beijing_now)
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user = db.relationship('User', backref=db.backref('exam_bookmarks', lazy='dynamic', cascade='all, delete-orphan'))
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exam = db.relationship('Exam', backref=db.backref('bookmarked_by', lazy='dynamic', cascade='all, delete-orphan'))
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@@ -412,7 +417,7 @@ class ChatRoom(db.Model):
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announcement = db.Column(db.Text, default='')
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announcement_by = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=True)
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announcement_at = db.Column(db.DateTime, nullable=True)
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created_at = db.Column(db.DateTime, default=datetime.utcnow)
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created_at = db.Column(db.DateTime, default=beijing_now)
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creator = db.relationship('User', foreign_keys=[creator_id], backref='chatrooms_created')
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announcement_user = db.relationship('User', foreign_keys=[announcement_by])
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@@ -428,8 +433,8 @@ class ChatRoomMember(db.Model):
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role = db.Column(db.String(20), default='member') # 'admin' | 'member'
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nickname = db.Column(db.String(50), default='')
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muted = db.Column(db.Boolean, default=False)
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last_read_at = db.Column(db.DateTime, default=datetime.utcnow)
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joined_at = db.Column(db.DateTime, default=datetime.utcnow)
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last_read_at = db.Column(db.DateTime, default=beijing_now)
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joined_at = db.Column(db.DateTime, default=beijing_now)
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user = db.relationship('User', backref='chat_memberships')
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@@ -447,7 +452,7 @@ class Message(db.Model):
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recalled = db.Column(db.Boolean, default=False)
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reply_to_id = db.Column(db.Integer, db.ForeignKey('message.id'), nullable=True)
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mentions = db.Column(db.Text, default='') # JSON array of user IDs, e.g. "[1,2,3]" or "all"
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created_at = db.Column(db.DateTime, default=datetime.utcnow)
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created_at = db.Column(db.DateTime, default=beijing_now)
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sender = db.relationship('User', backref='messages_sent')
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reply_to = db.relationship('Message', remote_side='Message.id', backref='replies')
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@@ -459,7 +464,7 @@ class MessageReaction(db.Model):
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message_id = db.Column(db.Integer, db.ForeignKey('message.id'), nullable=False)
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user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
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emoji = db.Column(db.String(10), nullable=False)
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created_at = db.Column(db.DateTime, default=datetime.utcnow)
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created_at = db.Column(db.DateTime, default=beijing_now)
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user = db.relationship('User', backref='message_reactions')
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@@ -472,7 +477,7 @@ class InviteCode(db.Model):
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user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
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application_id = db.Column(db.Integer, db.ForeignKey('teacher_application.id'), nullable=False)
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used = db.Column(db.Boolean, default=False)
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created_at = db.Column(db.DateTime, default=datetime.utcnow)
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created_at = db.Column(db.DateTime, default=beijing_now)
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used_at = db.Column(db.DateTime, nullable=True)
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user = db.relationship('User', backref='invite_codes')
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