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7c6ffa6 | 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 | from __future__ import annotations
from datetime import datetime
from typing import Any
from sqlalchemy import DateTime, ForeignKey, JSON, String, UniqueConstraint, func
from sqlalchemy.orm import Mapped, mapped_column
from app.core.database import Base
from app.utils.ids import prefixed_id
class ClassSessionProgress(Base):
"""Per-user, per-class tuition class progress (the 11-step guided class).
One row per (user, class_session_id). The resumable class state is stored as
a JSON blob so the step shape can evolve freely.
"""
__tablename__ = "class_session_progress"
__table_args__ = (
UniqueConstraint("user_id", "class_session_id", name="uq_class_session_user_session"),
)
id: Mapped[str] = mapped_column(
String(40),
primary_key=True,
default=lambda: prefixed_id("cprog"),
)
user_id: Mapped[str] = mapped_column(
String(40),
ForeignKey("users.id"),
index=True,
nullable=False,
)
class_session_id: Mapped[str] = mapped_column(String(200), nullable=False)
data: Mapped[dict[str, Any]] = mapped_column(JSON, default=dict, nullable=False)
created_at: Mapped[datetime] = mapped_column(
DateTime(timezone=True),
server_default=func.now(),
nullable=False,
)
updated_at: Mapped[datetime] = mapped_column(
DateTime(timezone=True),
server_default=func.now(),
onupdate=func.now(),
nullable=False,
)
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