serializers.py 文件源码

def validate(self, data):
        """
        Check that start_end/end_times are valid
        """
        if data['start_time'] >= data['end_time']:
            raise serializers.ValidationError('End time must occur after start')

        create_model = self.context['view'].model
        user = self.context['request'].user
        start_time = data['start_time']
        end_time = data['end_time']

        if create_model.objects.filter(user=user).filter(end_time__gte=start_time, start_time__lte=end_time).exists():
            raise ValidationError('Overlapping Periods Found')

        return data