如何在 Django 2.0 中正确设置 autocomplete_fields？

Question

尝试在 Django 管理中为 ForeingKey 设置 autocomplete_fields。我不明白如何正确设置它。我阅读了文档，但关于 autocomplete_fields 的信息并不多，至少对我来说还不够。

管理文件

class AdminSettings(admin.ModelAdmin):
    filter_horizontal = ('english_word', 'russian_word', 'turkish_word')
    list_display = ['circassian_word', 'letter']
    autocomplete_fields = ('circassian_word',)
    search_fields = ['circassian_word__circassian']

模型.py

class Word(models.Model):
    circassian_word = models.ForeignKey(Circassian, blank=True, null=True, on_delete=models.CASCADE, verbose_name='????????')
    letter = models.ForeignKey(Alphabet, null=True, on_delete=models.CASCADE, verbose_name='?????')
    audio = models.FileField(upload_to='audio', blank=True, verbose_name='???????')
    turkish_word = models.ManyToManyField(Turkish, blank=True, verbose_name='Türkçe')
    english_word = models.ManyToManyField(English, blank=True, verbose_name='English')
    russian_word = models.ManyToManyField(Russian, blank=True, verbose_name='???????')

错误信息

Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x10d07b9d8>
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/utils/autoreload.py", line 225, in wrapper
    fn(*args, **kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/core/management/commands/runserver.py", line 120, in inner_run
    self.check(display_num_errors=True)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/core/management/base.py", line 410, in check
    raise SystemCheckError(msg)
django.core.management.base.SystemCheckError: SystemCheckError: System check identified some issues:

ERRORS:
<class 'psalale.admin.AdminSettings'>: (admin.E037) The value of 'autocomplete_fields[0]' refers to 'circassian_word__circassian', which is not an attribute of 'psalale.Word'.

System check identified 1 issue (0 silenced).

Answer 1

正如文档中所说：

您必须search_fields在相关对象上定义，ModelAdmin因为自动完成搜索使用它。

所以你需要定义

class CircassianAdmin(admin.ModelAdmin):
    search_fields = []  # <- list of keys to search by

通过装饰器@admin.register(Circassian)或通过admin.site.register(CircassianAdmin)

并search_fields从中删除属性AdminSettings

友好的建议：重命名AdminSettings为 smth like WordAdmin，它更具可读性。