55 lines
2.1 KiB
Python
55 lines
2.1 KiB
Python
from sqlalchemy import *
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from sqlalchemy.dialects.mysql import TINYINT
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from core.database import Base
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from datetime import datetime,date
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class Score(Base):
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__tablename__ = "scores"
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id = Column(Integer
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, primary_key=True
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,autoincrement=True
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,comment="成绩表序号，自增主键"
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)
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student_id = Column(Integer
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,ForeignKey("students.id")
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,nullable=False
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,comment="学生学号"
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)
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score = Column(DECIMAL(4,1)
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,CheckConstraint("score between 0 and 100")
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,nullable=False
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)
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exam_seq= Column(Integer
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, nullable=False
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,comment="考试序次")
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__table_args__ = (
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UniqueConstraint("student_id"
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, "exam_seq"
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, name="uk_scores_student_exam"),
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)#学生id和考核序次联合唯一，即一个学生一次考试只能有一个分数
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exam_date=Column(Date
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,default=date.today
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,comment="考试日期"
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)
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created_at=Column(DateTime
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,default=datetime.now
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,server_default=text("CURRENT_TIMESTAMP")
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,nullable=False
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,comment="创建时间"
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)
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updated_at=Column(DateTime
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,default=datetime.now
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,onupdate=datetime.now
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,server_default=text("CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP")
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,nullable=False
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,comment="更新时间"
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)
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remark=Column(String(255)
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,comment="备注说明"
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)
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is_deleted=Column(TINYINT
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,default=0
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,server_default=text("0")
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,nullable=False
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,comment="逻辑删除标记：未删除0，已删除1"
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)
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