add new task for sending new messages to the chat

core/apps/shared/admin/__init__.py

@@ -1 +1,2 @@
-from .settings import * # noqa
+from .settings import * # noqa
+from .region import * # noqa

core/apps/shared/admin/region.py

@@ -0,0 +1,21 @@
+from django.contrib import admin
+
+from core.apps.shared.models import RegionModel, DistrictModel, VillageModel
+
+
+@admin.register(RegionModel)
+class RegionAdmin(admin.ModelAdmin):
+    list_display = ('name', 'code')
+    search_fields = ('name', 'code')
+
+
+@admin.register(DistrictModel)
+class DistrictAdmin(admin.ModelAdmin):
+    list_display = ('name', 'code', 'region')
+    search_fields = ('name', 'code')
+
+
+@admin.register(VillageModel)
+class VillageAdmin(admin.ModelAdmin):
+    list_display = ('name', 'code', 'district')
+    search_fields = ('name', 'code')

core/apps/shared/models/__init__.py

@@ -1 +1,2 @@
-from .settings import * # noqa
+from .settings import * # noqa
+from .region import * # noqa

core/apps/shared/models/region.py

@@ -0,0 +1,28 @@
+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"

core/apps/shared/serializers/region/district.py

@@ -0,0 +1,20 @@
+from rest_framework import serializers
+
+from core.apps.shared.models import RegionModel, VillageModel, DistrictModel
+
+
+class DistrictSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = DistrictModel
+        fields = ('id', 'name', 'code', 'region')
+
+class VillageSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = VillageModel
+        fields = ('id', 'name', 'code', 'district')
+
+
+class RegionSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = RegionModel
+        fields = ('id', 'name', 'code')