Merge branch 'hotfix/LIL-708' into 'master'

LIL-708 Ошибка с подарочными сертификатами в админке

See merge request lilcity/backend!215

api/v1/serializers/payment.py

@@ -3,7 +3,7 @@ from rest_framework import serializers
 from apps.payment.models import (
     AuthorBalance, Payment,
     CoursePayment, SchoolPayment,
-)
+    GiftCertificatePayment)
 from .user import UserSerializer
 from .course import CourseSerializer
 
@@ -114,6 +114,8 @@ class PaymentSerializer(serializers.ModelSerializer):
             return CoursePaymentSerializer(instance, context=self.context).to_representation(instance)
         elif isinstance(instance, SchoolPayment):
             return SchoolPaymentSerializer(instance, context=self.context).to_representation(instance)
+        elif isinstance(instance, GiftCertificatePayment):
+            return GiftCertificatePaymentSerializer(instance, context=self.context).to_representation(instance)
 
 
 class CoursePaymentCreateSerializer(serializers.ModelSerializer):
@@ -181,3 +183,20 @@ class SchoolPaymentSerializer(serializers.ModelSerializer):
             'created_at',
             'update_at',
         )
+
+
+class GiftCertificatePaymentSerializer(serializers.ModelSerializer):
+    user = UserSerializer()
+
+    class Meta:
+        model = GiftCertificatePayment
+        fields = BASE_PAYMENT_FIELDS + (
+            'gift_certificate',
+        )
+        read_only_fields = (
+            'id',
+            'user',
+            'course',
+            'created_at',
+            'update_at',
+        )