from django.db import models
from django_core.models import AbstractBaseModel


class RegionModel(AbstractBaseModel):
    name = models.CharField(max_length=255, unique=True)

    class Meta:
        verbose_name = "Region"
        verbose_name_plural = "Regions"


class DistrictModel(AbstractBaseModel):
    name = models.CharField(max_length=255, unique=True)
    region = models.ForeignKey(RegionModel, on_delete=models.CASCADE, related_name='districts')

    class Meta:
        verbose_name = "District"
        verbose_name_plural = "Districts"


class VillageModel(AbstractBaseModel):
    name = models.CharField(max_length=255, unique=True)
    district = models.ForeignKey(DistrictModel, on_delete=models.CASCADE, related_name='villages')

    class Meta:
        verbose_name = "Village"
        verbose_name_plural = "Villages"