mobile app models chat login notifications themes

models.py

@@ -65,6 +65,9 @@ class ContestApplication(db.Model):
     responsible_phone = db.Column(db.String(20))    # 责任人电话
     responsible_email = db.Column(db.String(120))   # 责任人邮箱
     organization = db.Column(db.String(100))        # 所属机构/学校
+    # 拒绝次数控制
+    rejection_count = db.Column(db.Integer, default=0)  # 被拒绝次数
+    last_rejected_at = db.Column(db.DateTime)  # 最后一次被拒绝的时间
 
     user = db.relationship('User', backref='contest_applications')
 
@@ -361,6 +364,9 @@ class TeacherApplication(db.Model):
     applied_at = db.Column(db.DateTime, default=datetime.utcnow)
     reviewed_at = db.Column(db.DateTime)
     reviewed_by = db.Column(db.Integer, db.ForeignKey('user.id'))
+    # 拒绝次数控制
+    rejection_count = db.Column(db.Integer, default=0)  # 被拒绝次数
+    last_rejected_at = db.Column(db.DateTime)  # 最后一次被拒绝的时间
 
     # 关系
     user = db.relationship('User', foreign_keys=[user_id], backref='teacher_applications')