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44 lines
1.1 KiB
Python
44 lines
1.1 KiB
Python
from django.db import models
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class Account(models.Model):
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num = models.IntegerField()
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class Person(models.Model):
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GENDER_CHOICES = (
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("M", "Male"),
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("F", "Female"),
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)
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name = models.CharField(max_length=20)
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gender = models.CharField(max_length=1, choices=GENDER_CHOICES)
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pid = models.IntegerField(null=True, default=None)
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class Employee(Person):
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employee_num = models.IntegerField(default=0)
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profile = models.ForeignKey(
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"Profile", models.SET_NULL, related_name="profiles", null=True
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)
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accounts = models.ManyToManyField("Account", related_name="employees", blank=True)
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class NonConcreteField(models.IntegerField):
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def db_type(self, connection):
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return None
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def get_attname_column(self):
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attname, _ = super().get_attname_column()
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return attname, None
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class Profile(models.Model):
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name = models.CharField(max_length=200)
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salary = models.FloatField(default=1000.0)
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non_concrete = NonConcreteField()
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class ProxyEmployee(Employee):
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class Meta:
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proxy = True
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