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from django.db import models
class School(models.Model):
name = models.CharField(max_length=100)
class Parent(models.Model):
name = models.CharField(max_length=100)
class Child(models.Model):
mother = models.ForeignKey(Parent, models.CASCADE, related_name='mothers_children')
father = models.ForeignKey(Parent, models.CASCADE, related_name='fathers_children')
school = models.ForeignKey(School, models.CASCADE)
name = models.CharField(max_length=100)
class Poet(models.Model):
name = models.CharField(max_length=100)
def __str__(self):
return self.name
class Poem(models.Model):
poet = models.ForeignKey(Poet, models.CASCADE)
name = models.CharField(max_length=100)
class Meta:
unique_together = ('poet', 'name')
def __str__(self):
return self.name
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