fix data base

bd/tables/question.py

@@ -0,0 +1,20 @@
+from sqlalchemy import Column, Text, Integer, ForeignKey, String
+from sqlalchemy.dialects.postgresql import UUID
+from sqlalchemy.orm import relationship
+from .simple_base import Base
+import uuid
+
+
+class Question(Base):
+    __tablename__ = "questions"
+
+    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    poll_id = Column(UUID(as_uuid=True), ForeignKey("polls.id", ondelete="CASCADE"), nullable=False)
+    text = Column(Text, nullable=False)
+    position = Column(Integer, nullable=True)
+    type = Column(String(32), nullable=False, default="single")  # single|multi|open
+
+    choices = relationship("Choice", backref="question", cascade="all, delete-orphan", passive_deletes=True)
+
+
+__all__ = ["Base", "Question"]