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from rest_framework import serializers
from apps.certificate.models import Certificate
from apps.course.serializers import CourseDetailSerializer
class CertificateSerializer(serializers.ModelSerializer):
course = serializers.SerializerMethodField()
class Meta:
model = Certificate
fields = ['id', 'student', 'course', 'status', 'created_at', 'updated_at',]
read_only_fields = ['id', 'student', 'status', 'created_at', 'updated_at',]
def get_course(self, obj):
return CourseDetailSerializer(obj.course, context=self.context).data
class CertificateRequestSerializer(serializers.ModelSerializer):
class Meta:
model = Certificate
fields = ['id', 'course']
read_only_fields = ['id']
def create(self, validated_data):
user = self.context['request'].user
course = validated_data['course']
if Certificate.objects.filter(student=user, course=course, status__in=['pending', 'approved']).exists():
raise serializers.ValidationError({"course": "Passwords do not match."})
return Certificate.objects.create(student=user, course=course)