File size: 1,655 Bytes
2299bb4 | 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 42 43 44 45 46 47 48 49 | """
Message model - represents chat messages.
"""
from sqlalchemy import Column, String, DateTime, Text, ForeignKey, Boolean, Integer
from sqlalchemy.sql import func
from sqlalchemy.orm import relationship
from ..dependencies import Base
import uuid
class Message(Base):
"""Chat message model."""
__tablename__ = "messages"
id = Column(String, primary_key=True, default=lambda: str(uuid.uuid4()))
sender_id = Column(String, ForeignKey("users.id"), nullable=False, index=True)
# Message type: 'text', 'image', 'file', 'system'
type = Column(String(20), default="text")
# Content (text or file URL)
content = Column(Text, nullable=False)
# For private chat (user-to-user)
receiver_id = Column(String, ForeignKey("users.id"), nullable=True, index=True)
# For group chat
group_id = Column(String, ForeignKey("groups.id"), nullable=True, index=True)
# Message status
is_deleted = Column(Boolean, default=False)
is_archived = Column(Boolean, default=False)
# Batch processing info
batch_id = Column(String, nullable=True, index=True)
compressed = Column(Boolean, default=False)
# Timestamps
created_at = Column(DateTime(timezone=True), server_default=func.now())
updated_at = Column(DateTime(timezone=True), onupdate=func.now())
deleted_at = Column(DateTime(timezone=True), nullable=True)
# Relationships
# sender = relationship("User", back_populates="messages")
# reactions = relationship("Reaction", back_populates="message")
def __repr__(self):
return f"<Message {self.id[:8]} from {self.sender_id[:8]}>" |