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62 lines
1.4 KiB
Python
62 lines
1.4 KiB
Python
from __future__ import unicode_literals
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from django.db import models
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from django.utils.encoding import python_2_unicode_compatible
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@python_2_unicode_compatible
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class Tag(models.Model):
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name = models.CharField(max_length=10)
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parent = models.ForeignKey(
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'self',
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models.SET_NULL,
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blank=True,
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null=True,
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related_name='children',
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)
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class Meta:
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ordering = ['name']
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def __str__(self):
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return self.name
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@python_2_unicode_compatible
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class Celebrity(models.Model):
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name = models.CharField("Name", max_length=20)
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greatest_fan = models.ForeignKey(
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"Fan",
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models.SET_NULL,
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null=True,
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unique=True,
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)
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def __str__(self):
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return self.name
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class Fan(models.Model):
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fan_of = models.ForeignKey(Celebrity, models.CASCADE)
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@python_2_unicode_compatible
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class Staff(models.Model):
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id = models.IntegerField(primary_key=True)
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name = models.CharField(max_length=50)
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organisation = models.CharField(max_length=100)
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tags = models.ManyToManyField(Tag, through='StaffTag')
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coworkers = models.ManyToManyField('self')
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def __str__(self):
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return self.name
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@python_2_unicode_compatible
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class StaffTag(models.Model):
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staff = models.ForeignKey(Staff, models.CASCADE)
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tag = models.ForeignKey(Tag, models.CASCADE)
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def __str__(self):
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return "%s -> %s" % (self.tag, self.staff)
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