* Check the Gifts that are being added to Checklist from unauthorized users

store/serializers.py

@@ -1,6 +1,7 @@
 from drf_extra_fields.fields import Base64ImageField
 from rest_framework import serializers
 
+from store.exceptions import CRMException
 from store.models import User, Checklist, GlobalSettings, Category, PaymentMethod, Promocode, Image, Gift
 from store.utils import get_primary_key_related_model
 
@@ -195,7 +196,13 @@ class AnonymousUserChecklistSerializer(ChecklistSerializer):
                                   'buyername', 'buyerphone',
                                   'delivery',
                                   'recievername', 'recieverphone', 'tg',
-                                  'cdek_barcode_pdf'})
+                                  'gift', 'cdek_barcode_pdf'})
+
+    def validate(self, attrs):
+        gift = attrs.get('gift')
+        if gift is not None and self.instance.price_yuan < gift.min_price:
+            raise CRMException("Can't add gift: price of order < min_price of gift")
+        return attrs
 
 
 class GlobalSettingsSerializer(serializers.ModelSerializer):