creating first models

apps/authentication/models.py

@@ -0,0 +1,50 @@
+from django.db import models
+from django.contrib.auth.models import (
+    AbstractUser
+)
+from apps.core.models import BaseModel
+
+
+class User(AbstractUser, BaseModel):
+    mobile = models.CharField(max_length=18)
+    national_code = models.CharField(max_length=16)
+    photo = models.CharField(max_length=50)
+
+    def __str__(self):
+        return f'{self.username} {self.last_name}-{self.last_login}'
+
+    def save(self, *args, **kwargs):
+        super(User, self).save(*args, **kwargs)
+
+
+class Province(BaseModel):
+    name = models.CharField(max_length=50)
+
+    def __str__(self):
+        return f'{self.name}'
+
+    def save(self, *args, **kwargs):
+        super(Province, self).save(*args, **kwargs)
+
+
+class Organization(BaseModel):
+    name = models.CharField(max_length=50)
+    type = models.CharField(max_length=50)
+    province = models.ForeignKey(
+        Province,
+        on_delete=models.CASCADE,
+        related_name="province_organization",
+        null=True
+    )
+    parent_organization = models.ForeignKey(
+        'Organization',
+        on_delete=models.CASCADE,
+        related_name='parents',
+        null=True
+    )
+
+    def __str__(self):
+        return f'{self.name}-{self.type}'
+
+    def save(self, *args, **kwargs):
+        super(Organization, self).save(*args, **kwargs)