Django：“Can not convert'Name'object to str implicitly”保存对象 [英] Django: "Can't convert 'Name' object to str implicitly" on saving object

问题描述

在Django管理员中，我创建了一个名称对象，名称为英国。然后我创建一个使用我刚创建的Name对象的国家对象，并创建一个标志图像的路径。

In Django admin, I have created a Name object with name: "United Kingdom". I then create a Nation object with the Name object I've just created, and a path to a flag image.

在保存条目时，我得到：

On saving the entry, I get:

Can't convert 'Name' object to str implicitly
Request Method: POST
Request URL:    http://127.0.0.1:8000/admin/display/nation/add/
Django Version: 1.6.2
Exception Type: TypeError
Exception Value:    Can't convert 'Name' object to str implicitly
Exception Location: \models.py in __unicode__, line 24

相关model.py

Relevant section of models.py

class Name(models.Model):
    def __unicode__(self):
        return 'Name: ' + self.name
    id = models.AutoField(primary_key=True)
    name = models.CharField(max_length=32)
    class Meta:
        db_table = 'name'

class Nation(models.Model):
    def __unicode__(self):
        return 'Nation: ' + self.name
    id = models.AutoField(primary_key=True)
    name = models.ForeignKey(Name)
    flag_path = models.CharField(max_length=64)
    class Meta:
        db_table = 'nation'

从错误消息中我明白返回'Name：'+ self.name 需要获取一个字符串追加到'Name：'，但是我如何修改我的models.py来允许？

From the error message I understand that return 'Name: ' + self.name needs to get a string back to append to 'Name: ', but how would I amend my models.py to allow that?

推荐答案

修复问题的更改：

'名称： '+ self.name.name

'Name: ' + self.name.name

这样我正确地引用名称表中的名称列。

That way I'm correctly referring to the name column in the name table.

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