| 123456789101112131415161718192021222324252627282930313233343536373839 | from extensions.ext_database import dbfrom .model import Messagefrom .types import StringUUIDclass SavedMessage(db.Model):    __tablename__ = "saved_messages"    __table_args__ = (        db.PrimaryKeyConstraint("id", name="saved_message_pkey"),        db.Index("saved_message_message_idx", "app_id", "message_id", "created_by_role", "created_by"),    )    id = db.Column(StringUUID, server_default=db.text("uuid_generate_v4()"))    app_id = db.Column(StringUUID, nullable=False)    message_id = db.Column(StringUUID, nullable=False)    created_by_role = db.Column(db.String(255), nullable=False, server_default=db.text("'end_user'::character varying"))    created_by = db.Column(StringUUID, nullable=False)    created_at = db.Column(db.DateTime, nullable=False, server_default=db.text("CURRENT_TIMESTAMP(0)"))    @property    def message(self):        return db.session.query(Message).filter(Message.id == self.message_id).first()class PinnedConversation(db.Model):    __tablename__ = "pinned_conversations"    __table_args__ = (        db.PrimaryKeyConstraint("id", name="pinned_conversation_pkey"),        db.Index("pinned_conversation_conversation_idx", "app_id", "conversation_id", "created_by_role", "created_by"),    )    id = db.Column(StringUUID, server_default=db.text("uuid_generate_v4()"))    app_id = db.Column(StringUUID, nullable=False)    conversation_id = db.Column(StringUUID, nullable=False)    created_by_role = db.Column(db.String(255), nullable=False, server_default=db.text("'end_user'::character varying"))    created_by = db.Column(StringUUID, nullable=False)    created_at = db.Column(db.DateTime, nullable=False, server_default=db.text("CURRENT_TIMESTAMP(0)"))
 |