32 lines
862 B
Python
32 lines
862 B
Python
from django.db import models
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class Atoll(models.Model):
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name = models.CharField(max_length=100, unique=True)
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# Maldivian administrative code, e.g. "F" for Faafu.
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code = models.CharField(max_length=8, blank=True)
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is_active = models.BooleanField(default=True)
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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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class Island(models.Model):
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atoll = models.ForeignKey(Atoll, on_delete=models.PROTECT, related_name="islands")
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name = models.CharField(max_length=100)
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is_active = models.BooleanField(default=True)
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class Meta:
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ordering = ["name"]
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constraints = [
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models.UniqueConstraint(
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fields=["atoll", "name"], name="unique_island_name_per_atoll"
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)
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]
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def __str__(self):
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return f"{self.name}, {self.atoll.name}"
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