如何过滤Django2的autocomplete_fields中的选择？ [英] How to filter choices in Django2's autocomplete_fields?

问题描述

在Django 2.0中， autocomplete_fields 已添加，这很棒。

In Django 2.0, autocomplete_fields was added, which is great.

没有autocomplete_fields，我可以使用 formfield_for_foreignkey 。

Without autocomplete_fields, I can change the queryset of a ForeignKeyField using formfield_for_foreignkey.

但是将两者结合在一起是行不通的-看来自动完成功能的选项列表是动态的，并且来自不同的url，而不是来自当前形式。

But combining the two together doesn't work - it looks like the list of options for autocomplete is dynamic and coming from a different url, instead of from the current form.

问题是-

如何在自动完成小部件中更改查询集？

How can I change the queryset in the autocomplete widget?

推荐答案

重写ModelAdmin的 get_search_results 方法来使用所需的查询。您可以在 get_queryset 方法的视图中看到，该视图提供用于获取查询集的自动完成字段的数据-此答案的来源为 https://github.com/django/django/blob/03dbdfb9bb /django/contrib/admin/views/autocomplete.py#L42 。

Override the ModelAdmin's get_search_results method to use the query you want. You can see in the get_queryset method for the view providing the data for autocomplete fields that it's used to get the queryset - the source as of this answer is https://github.com/django/django/blob/03dbdfd9bbbbd0b0172aad648c6bbe3f39541137/django/contrib/admin/views/autocomplete.py#L42.

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