django-res -framework:不能调用' .is_valid() '，因为在实例化serializer实例时没有传递' data= '关键字参数

I've the following model:

我以下模型:

class NoteCategory(models.Model):
    title = models.CharField(max_length=100, unique=True)

    def __unicode__(self):
        return '{}'.format(self.title)

class PatientNote(models.Model):
    category = models.ForeignKey(NoteCategory)
    patient = models.ForeignKey(Patient)
    description = models.CharField(max_length=500)
    created_at = models.DateTimeField(auto_now_add=True)

    def __unicode__(self):
        return '{}'.format(self.description)
class Note