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from django.db import models
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genders = [
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('m', '男'),
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('f', '女')
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]
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# 添加学生模型
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class Student(models.Model):
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name = models.CharField(max_length=50, verbose_name="姓名")
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gender = models.CharField(max_length=10, choices=genders, default='m', verbose_name="性别")
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birthday = models.DateField(verbose_name='生日')
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email = models.EmailField(verbose_name="邮箱")
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info = models.CharField(max_length=255, verbose_name='个人简介', help_text='一句话概括自己，不超过250字')
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grade = models.CharField(max_length=4, verbose_name='年级')
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number = models.CharField(max_length=20, verbose_name='级内学号')
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password = models.CharField(max_length=30, verbose_name='密码')
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class Meta:
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constraints = [
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models.UniqueConstraint(fields=['grade', 'number'], name='student_id')
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]
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def get_id(self):
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return "%s%s" % (self.grade, self.number)
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def __str__(self):
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return "%s (%s)" % (self.get_id(), self.name)
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# 添加老师模型
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class Teacher(models.Model):
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name = models.CharField(max_length=50, verbose_name="姓名")
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gender = models.CharField(max_length=10, choices=genders, default='m', verbose_name="性别")
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birthday = models.DateField(verbose_name='生日')
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email = models.EmailField(verbose_name='邮箱')
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info = models.CharField(max_length=255, verbose_name='教师简介', help_text='不要超过250字')
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department_no = models.CharField(max_length=3, verbose_name='院系号')
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number = models.CharField(max_length=7, verbose_name='院内编号')
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password = models.CharField(max_length=30, verbose_name='密码')
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class Meta:
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constraints = [
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models.UniqueConstraint(fields=['department_no', 'number'], name='teacher_id')
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]
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# python manage.py makemigrations 生成空的database：db.sqlite3
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# python manage.py migrate 更新到数据库文件
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def get_id(self):
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return "%s%s" % (self.department_no, self.number)
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def __str__(self):
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return "%s (%s)" % (self.get_id(), self.name)
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