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39 lines
1.5 KiB
39 lines
1.5 KiB
from django.db import models
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from teacher.models import Teacher
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from Student.models import Student
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# Create your models here.
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class Course(models.Model):
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cid = models.AutoField(primary_key=True, verbose_name="课程编号", name="cid")
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name = models.CharField(max_length=255, verbose_name="课程名称", name="name", blank=True)
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type = models.CharField(max_length=128, verbose_name="课程类型", name="type", blank=True)
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credit = models.IntegerField(verbose_name="课程学分", name="credit")
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tid = models.ForeignKey(Teacher, to_field="tid", on_delete=models.CASCADE, name="tid")
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def to_dict(self):
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return {"cid": self.cid, "c_name": self.name, "type": self.type, "credit": self.credit,
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"tid": self.tid}
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class Meta:
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db_table = "course"
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verbose_name = "课程"
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verbose_name_plural = verbose_name
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class SC(models.Model):
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sid = models.ForeignKey(Student, to_field="sid", on_delete=models.CASCADE, name="sid")
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cid = models.ForeignKey(Course, to_field="cid", on_delete=models.CASCADE, name="cid")
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middle_grade = models.IntegerField(name="middle_grade")
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end_grade = models.IntegerField(name="end_grade")
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def to_dict(self):
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return {"sid": self.sid, "cid": self.cid, "middle_grade": self.middle_grade, "end_grade": self.end_grade}
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class Meta:
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db_table = "sc"
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verbose_name = "管理员"
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verbose_name_plural = verbose_name
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unique_together = ("sid", "cid")
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