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009f914 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 | from sqlalchemy import Column, Integer, String, DateTime, ForeignKey, Text, func
from sqlalchemy.orm import relationship
from datetime import datetime
from .session import Base
class User(Base):
__tablename__ = "users"
id = Column(Integer, primary_key=True, index=True)
email = Column(String(255), unique=True, index=True, nullable=False)
username = Column(String(80), unique=True, index=True, nullable=False)
password_hash = Column(String(255), nullable=False)
created_at = Column(DateTime, default=datetime.utcnow)
messages = relationship("Message", back_populates="user", cascade="all, delete-orphan")
class Message(Base):
__tablename__ = "messages"
id = Column(Integer, primary_key=True, index=True)
user_id = Column(Integer, ForeignKey("users.id"), nullable=False, index=True)
role = Column(String(16), nullable=False) # "user" | "bot"
text = Column(Text, nullable=False)
level = Column(String(8), nullable=True)
topic = Column(String(64), nullable=True)
created_at = Column(DateTime, default=datetime.utcnow, index=True)
user = relationship("User", back_populates="messages")
class Correction(Base):
__tablename__ = "corrections"
id = Column(Integer, primary_key=True, index=True)
user_id = Column(Integer, ForeignKey("users.id"), nullable=False, index=True) # ✅ مهم
error = Column(String, nullable=False)
suggestion = Column(String, default="")
explanation = Column(Text, default="")
created_at = Column(DateTime(timezone=True), server_default=func.now())
user = relationship("User") |