from sqlalchemy import Integer, Column, DateTime, Integer, Numeric, String

from util.database import Base


class Grade(Base):
    """对应 Excel Sheet：成绩表。"""

    __tablename__ = "wl_grade"

    id = Column(Integer, primary_key=True, autoincrement=True)
    student_number = Column(String(50))
    course_number = Column(String(50))
    exam_sequence = Column(Integer)
    score = Column(Numeric(5, 2))
    created_at = Column(DateTime)
    updated_at = Column(DateTime)
    is_deleted = Column(default=False, nullable=False)