AttributeError：在Django中使用ArrayField时，“ __ proxy__”对象没有属性“ set_attributes_from_name”

Question

我尝试在模型中为ArrayField设置延迟转换。像这样：

from django.utils.translation import gettext_lazy as _

class MyModel(models.Model):
    choices = ArrayField(
        _('choices'),
        models.CharField(max_length=255),
        blank=True,
        null=True,
        help_text=_('Comma-delimited list.')
    )

但是，出现此错误：

AttributeError: '__proxy__' object has no attribute 'set_attributes_from_name'

应该改为verbose_name，如果是，为什么？ ArrayFields不是关系。

Answer 1

ArrayField [Django-doc]的第一个参数是：

private void process_OutputCmd(object sender, DataReceivedEventArgs arg)
{
    MessageBox.Show(arg.Data);
}

Process process = new Process();
process.StartInfo.FileName = "cmd.exe";
process.StartInfo.Arguments = "/C ping 127.0.0.1";
process.StartInfo.RedirectStandardOutput = true;
process.StartInfo.CreateNoWindow = false;
process.StartInfo.UseShellExecute = false;
process.OutputDataReceived += new DataReceivedEventHandler(process_OutputCmd);
process.Start();
process.BeginOutputReadLine();

所以要存储在数组中的项目的类型。

因此您可以构造如下字段：

class ArrayField(base_field, size=None, **options)

或者您可以显式命名from django.utils.translation import gettext_lazy as _ class MyModel(models.Model): choices = ArrayField( models.CharField(max_length=255), verbose_name=_('choices'), blank=True, null=True, help_text=_('Comma-delimited list.') )和base_field，那么顺序无关紧要。