In my database i have a nome field, and in this charfield all data is uppercase. I need return in the title format, just title() method does.
example:

在我的数据库中，我有一个Nome字段，在这个Charfield中，所有数据都是大写的。我需要以标题格式返回，只有title()方法需要。示例：

data in my field name: CAFE SANTA CLARA SOLUVEL GRAN. RF 50G-12501

我域名中的数据：Cafe Santa Clara Soluvel Gran。射频50G-12501

i need return like that: Cafe Santa Clara Soluve Gran Rf 50G-12501

我需要这样的回报：圣克拉拉咖啡馆Soluve Gran RF 50g-12501

I use django rest serializer to return this data.

我使用Django REST序列化程序返回此数据。

Whats the best way to do this? In my model, serializer class or my view?

做这件事最好的方法是什么？在我的模型、序列化程序类还是我的视图中？

Tks!

谢谢

model:

型号：

class Produto(models.Model):
    def __str__(self):
        return self.nome.encode('utf-8')

    def __unicode__(self):
        return self.nome.encode('utf-8')

    categoria = models.ForeignKey(ProdutoCategoria, null=True, blank=True)
    marca = models.ForeignKey(ProdutoMarca, null=True)
    nome = models.CharField(max_length=256, null=True) #its this column
    unidade = models.CharField(max_length=256, null=True, db_column='unid')
    ean = models.CharField(max_length=256, null=True)
    ncm = models.DecimalField(max_digits=65, null=True, decimal_places=2)
    fator = models.DecimalField(max_digits=100, null=True, decimal_places=2)
    fornecedor = models.CharField(max_length=256, null=True)
    imagem = models.TextField(blank=True, null=True)
    id_externo = models.IntegerField(null=True, blank=True)
    top = models.NullBooleanField(null=True, blank=True)

serializer:

串行器：

class ProdutoSerializer(serializers.ModelSerializer):
    marca = serializers.CharField(source='marca.nome')
    categoria_pai = serializers.IntegerField(source='categoria.pai.id')
    class Meta:
        model = Produto
        fields = (
            'ean',
            'id',
            'nome',
            'imagem',
            'marca',
            'categoria',
            'categoria_pai'
        )

The best way is use your serializer:

最好的方法是使用您的序列化程序：

Something like this:

大概是这样的：

class ServiceSerializer(serializers.ModelSerializer):
    category = ServiceCategorySerializer()

    service = serializers.SerializerMethodField()

    def get_service(self, obj):
        return obj.service.upper() if obj.service else None

This is the first way :)
The second is to change tour to_representation, like this:

这是第一种方法：)第二种方法是将TUR更改为_REPORTATION，如下所示：

class ServiceSerializer(serializers.ModelSerializer):
    category = ServiceCategorySerializer()

    class Meta:
        model = Service
        fields = ('service', 'category')

    def to_representation(self, instance):
        data = super(ServiceSerializer, self).to_representation(instance=instance)
        data['service'] = data['service'].lower() if data['service'] else data['services']
        return data

The problem is that :) before each save - you should reverse the process - especially in the second case. But in the first scenario - you will also get from the front the changed value, so basically after some finite time you will have all DB rows rewritten ;)

问题是：)在每次保存之前，您应该颠倒这个过程--特别是在第二种情况下。但在第一个场景中-您还将从前面获得更改的值，因此基本上在一段有限时间后，您将重写所有数据库行；)

As someone suggested - why you do not want to do this on Front side?

正如有人建议的那样--为什么您不想在正面执行此操作？

## First Letter Capital.
def get_name(self, obj):
        return obj.name.capitalize()