外键

2026-09-22 15:58:34 +08:00
parent 1fe2b6bc60
commit de85f8ef06
3 changed files with 23 additions and 5 deletions
@@ -1,6 +1,6 @@
 from scores.database import Base
 from datetime import datetime
-from sqlalchemy import DateTime,Column,Integer,String,Float
+from sqlalchemy import DateTime,Column,Integer,String,Float,ForeignKey
 class Score(Base):
    __tablename__='scores'
    id = Column(Integer
@@ -9,9 +9,11 @@ class Score(Base):
                 ,comment ='编号'
                 )
    sid = Column(Integer
+                 ,ForeignKey('students.id')
                 ,comment ='学生ID'
                 )
    cid = Column(Integer
+                 ,ForeignKey('classes.id')
                 ,comment ='班级ID'
                 )
    num = Column(Integer
@@ -19,6 +21,7 @@ class Score(Base):
                 )
    score = Column(Integer,nullable = False)
    tsub = Column(String(100)
+                  , ForeignKey('subject.id')
                   ,nullable = False
                   )
    create_date = Column(DateTime