Improve users table sanitization

database/models.py

@@ -1,3 +1,4 @@
+from secrets import token_hex
 from sqlalchemy import Column, DateTime, Enum, ForeignKey, Integer, String, Text, text
 from sqlalchemy.sql import func
 
@@ -10,24 +11,25 @@ class Users(Base):
     id = Column(Integer, primary_key=True, autoincrement=True)
     social_id = Column(Text)
     type = Column(Integer, nullable=True)
-    full_name = Column(String(255), index=True, unique=True, nullable=False)
+    full_name = Column(String(255), index=True, nullable=False)
     email = Column(String(255), index=True, unique=True, nullable=False)
     password = Column(String(255))
     gender = Column(Integer)
-    mobile = Column(String(255), nullable=False)
+    mobile = Column(String(255), unique=True, nullable=False)
     user_image = Column(String(255))
     city_id = Column(Integer, ForeignKey("cities.id"))
     user_type = Column(Integer)
     otp = Column(String(255))
     otp_valid_time = Column(DateTime)
-    access_key = Column(Text)
+    access_key = Column(Text, unique=True, default=token_hex)
     lang_type = Column(Integer)
-    badge = Column(Integer)
+    badge = Column(Integer, server_default=text("0"))
     status = Column(Integer, server_default=text("0"))
     admin_status = Column(Integer, server_default=text("0"))
     device_id = Column(Text)
     device_type = Column(Integer)
     created = Column(DateTime, nullable=False, server_default=func.now())
+    updated = Column(DateTime, nullable=True, onupdate=func.now())
 
 
 class Cities(Base):