From 57b8d1071410d9abf2e51cae7ecb9740d6f8b267 Mon Sep 17 00:00:00 2001
From: Mojtaba-z <mojtaba.zolfaghari30@gmail.com>
Date: Wed, 5 Nov 2025 12:47:13 +0330
Subject: [PATCH] bank account existance exception

---
 apps/authentication/api/v1/serializers/serializer.py | 10 +++++++++-
 apps/authentication/exceptions.py                    |  6 ++++++
 apps/authentication/models.py                        |  6 +++---
 3 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/apps/authentication/api/v1/serializers/serializer.py b/apps/authentication/api/v1/serializers/serializer.py
index 59e827d..d18f830 100644
--- a/apps/authentication/api/v1/serializers/serializer.py
+++ b/apps/authentication/api/v1/serializers/serializer.py
@@ -5,7 +5,7 @@ from django.db.models import Q
 from rest_framework import serializers
 
 from apps.authentication.exceptions import UserExistException, OrganizationNationalUniqueIDException, \
-    OrganizationTypeRepeatableException
+    OrganizationTypeRepeatableException, BankAccountExistException
 from apps.authentication.models import (
     User,
     City,
@@ -51,6 +51,14 @@ class BankAccountSerializer(serializers.ModelSerializer):
         model = BankAccountInformation
         fields = '__all__'
 
+    def validate(self, attrs):
+        account = attrs['account']
+        card = attrs['card']
+        sheba = attrs['sheba']
+
+        if self.Meta.model.objects.filter(Q(account=account) | Q(card=card) | Q(sheba=sheba)).exists():
+            raise BankAccountExistException()
+
     def update(self, instance, validated_data):
         """ update user bank account information """
         instance.name = validated_data.get('name', instance.name)
diff --git a/apps/authentication/exceptions.py b/apps/authentication/exceptions.py
index 127a190..b6e8f7b 100644
--- a/apps/authentication/exceptions.py
+++ b/apps/authentication/exceptions.py
@@ -11,6 +11,12 @@ class TokenBlackListedException(APIException):
     default_code = 'unauthorized'
 
 
+class BankAccountExistException(APIException):
+    status_code = status.HTTP_403_FORBIDDEN
+    default_detail = "اطلاعات بانکی وارد شده از قبل ثبت شده است"  # noqa
+    default_code = "اطلاعات بانکی وارد شده از قبل ثبت شده است"  # noqa
+
+
 class OrganizationBankAccountException(APIException):
     """ if organization does not have bank account """
 
diff --git a/apps/authentication/models.py b/apps/authentication/models.py
index a1573f3..14f7825 100644
--- a/apps/authentication/models.py
+++ b/apps/authentication/models.py
@@ -195,9 +195,9 @@ class BankAccountInformation(BaseModel):
     )
     account_type = models.CharField(max_length=10, default='USR')
     name = models.CharField(max_length=150, null=True)
-    card = models.CharField(max_length=25, null=True, unique=True)
-    account = models.CharField(max_length=25, null=True, unique=True)
-    sheba = models.CharField(max_length=30, null=True, unique=True)
+    card = models.CharField(max_length=25, null=True)
+    account = models.CharField(max_length=25, null=True)
+    sheba = models.CharField(max_length=30, null=True)
 
     def __str__(self):
         return f'{self.name}-{self.card}'