具有自定义名称和目录名称的django上传文件

Question

我想设置我的Django模型以使用自定义路径和文件名上传文件，而我的当前模型则是这样：

def update_filename(instance, filename):
    path = "accounts/"
    format = instance.id + "/" + filename
    return os.path.join(path, format)

class AccountsModel(models.Model):
    ChannelName  = models.CharField(max_length=100, unique=False)
    AuthUri      = models.CharField(max_length=250, unique=True)
    ClientSecret = models.CharField(max_length=250, unique=True)
    ClientID     = models.CharField(max_length=250, unique=True)
    ClientSecrets = models.FileField(upload_to="accounts/", default='', null=True, blank=False)
    RequestToken  = models.FileField(upload_to="accounts/", default='', null=True, blank=False)
    Note         = models.CharField(max_length=250, unique=False)
    counter      = models.IntegerField(default=0)

    author       = models.ForeignKey(User, null=True, blank=True, on_delete=models.PROTECT)
    created_at   = models.DateTimeField(auto_now_add=True)
    updated_at   = models.DateTimeField(auto_now=True)

当我尝试上传文件时，我想像这样：

/accounts/22/clientsecret.json
/accounts/22/token.json

我的当前配置返回此错误：

UNIQUE constraint failed: myupload_accountsmodel.ClientID

我该怎么做？我在哪里错了？

完整的项目：https://github.com/scaltro/youtubeapp/blob/master/myupload/models.py

Answer 1

我在这里演示一个最小的示例（通过使用 TextBox.Text ）

DRF

# your models.py
class MyModel(models.Model):
    name = models.CharField(max_length=123)
    myfile = models.FileField(upload_to='account/')

# serializer.py
class MySerializer(serializers.ModelSerializer):
    custom_name = serializers.CharField(write_only=True)

    class Meta:
        model = MyModel
        fields = '__all__'

    def create(self, validated_data):
        validated_data['myfile'].name = validated_data.pop('custom_name')
        return MyModel.objects.create(**validated_data)

如何上传？

这是我的POSTMAN控制台屏幕截图。我以 form-data 的身份上传并成功。