Django 管理员：在 list_editable 中预取选择

Question

我有一个模型Domain，并将其ForeignKey语言模型设置list_editable为ModelAdmin.

问题是它会引起大量SQL查询django_debug_toolbar。我认为我可以使用它来解决它，select_related但它没有帮助，因为它只选择实际值，而不是所有选择。

@register(Domain)
class DomainAdmin(admin.ModelAdmin):
    list_display = ['id', 'name', 'main_url', 'language', 'max_depth', 'number_of_urls']
    list_editable = ['name', 'main_url', 'language', 'max_depth']
    list_select_related = ['language']

    #def get_queryset(self, request):
    #    return super(DomainAdmin, self).get_queryset(request).prefetch_related('language')

它仍然SQL对 every 执行查询Domain以获取所有Language对象。

如何让它一次获取所有Domains？

Answer 1

Django-cachalot is especially efficient in the Django administration website since it\xe2\x80\x99s unfortunately badly optimised (use foreign keys in list_editable if you need to be convinced).

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https://django-cachalot.readthedocs.io/en/latest/introduction.html

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