upd

bot/app/db/models.py

@@ -1,7 +1,7 @@
 from sqlalchemy.ext.declarative import declarative_base
 from sqlalchemy import Column, Integer, String, BigInteger, ForeignKey
 from sqlalchemy.dialects.postgresql import UUID
-from sqlalchemy.orm import relationship
+from sqlalchemy.orm import relationship, backref
 
 import uuid
 
@@ -12,8 +12,8 @@ class User(Base):
     __tablename__ = "user"
 
     id = Column(BigInteger, primary_key=True)
-    name = Column(String)
-    username = Column(String)
+    name = Column(String(64))
+    username = Column(String(32))
 
     owns_queues = relationship("Queue", backref="owner")
     takes_part_in_queues = relationship("QueueUser", backref="user")
@@ -23,10 +23,13 @@ class Queue(Base):
     __tablename__ = "queue"
 
     id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
-    name = Column(String, default="Новая очередь")
+    name = Column(String(40), default="Новая очередь")
+    description = Column(String(120), default=None)
     owner_id = Column(BigInteger, ForeignKey("user.id"))
 
-    users = relationship("QueueUser", backref="queue")
+    users = relationship(
+        "QueueUser", backref="queue"
+    )  # TODO: Delete all QueueUser user if Queue deletes
 
 
 class QueueUser(Base):