first commit

apps/appsetting/models.py

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+from django.db import models
+from utils.base_model import BaseModel
+# Create your models here.
+
+
+class City(BaseModel):
+    name = models.CharField(max_length=30, null=True, blank=True)
+    is_ostan = models.BooleanField(default=False, null=False, blank=False)
+    ostan = models.ForeignKey('self', models.CASCADE, null=True, blank=True)
+    pv_id = models.PositiveSmallIntegerField(null=True, blank=True)
+
+    def __str__(self):
+        return str(self.name)