validate phone number for iran in serializer

apps/users/serializers.py

@@ -1,9 +1,13 @@
+from django.core.validators import RegexValidator
 from rest_framework import serializers
 
 from apps.users.models import User
 from django.utils import timezone
+from django.utils.translation import gettext_lazy as _
 
-
+phone_number_validator = RegexValidator(regex=r'^\+98\d{10,10}$', message=_(
+        "Phone number must be entered in the format: '+989999999999'."
+    ),)
 class PublicUserSerializer(serializers.ModelSerializer):
     class Meta:
         model = User
@@ -12,6 +16,7 @@ class PublicUserSerializer(serializers.ModelSerializer):
 
 
 class AccountSerializer(serializers.ModelSerializer):
+    phone_number = serializers.CharField(validators=[phone_number_validator])
     class Meta:
         model = User
         fields = (
@@ -38,7 +43,7 @@ class AccountSerializer(serializers.ModelSerializer):
 
 
 class RequestOTPSerializer(serializers.ModelSerializer):
-    phone_number = serializers.CharField(required=True)
+    phone_number = serializers.CharField(required=True, validators=[phone_number_validator])
     ttl = serializers.SerializerMethodField()
 
     class Meta:
@@ -80,7 +85,7 @@ class RequestOTPSerializer(serializers.ModelSerializer):
 
 
 class UserInquirySerializer(serializers.ModelSerializer):
-    phone_number = serializers.CharField(required=True)
+    phone_number = serializers.CharField(required=True, validators=[phone_number_validator])
 
     class Meta:
         model = User