在 django rest 框架搜索过滤器中禁用多重搜索

Question

有没有办法在 Django-rest-framework 中使用 SearchFilter 禁用多重搜索？

默认情况下，如果空格和/或逗号出现在搜索字符串上，django-rf 将应用多个搜索。

xyz.com/?search=x,y

此搜索将返回包含 x 或 y（以逗号分隔）的结果。

我想让它返回的结果包含“x,y”作为字符串的一部分。

Answer 1

很难为此想出一个好的论据和用例，但既然你想实现这样的搜索，你必须需要它。 我会将现有的SearchFilter 子类化并覆盖filter_queryset 方法：

 def filter_queryset(self, request, queryset, view):
    search_fields = getattr(view, 'search_fields', None)
    search_terms = self.get_search_terms(request)

    if not search_fields or not search_terms:
        return queryset

    orm_lookups = [
        self.construct_search(six.text_type(search_field))
        for search_field in search_fields
    ]

    base = queryset
    conditions = []
    for search_term in search_terms:
        queries = [
            models.Q(**{orm_lookup: search_term})
            for orm_lookup in orm_lookups
        ]
        conditions.append(reduce(operator.or_, queries))
    queryset = queryset.filter(reduce(operator.and_, conditions))

    if self.must_call_distinct(queryset, search_fields):
        # Filtering against a many-to-many field requires us to
        # call queryset.distinct() in order to avoid duplicate items
        # in the resulting queryset.
        # We try to avoid this if possible, for performance reasons.
        queryset = distinct(queryset, base)
    return queryset

这就是方法的外观。稍微看一下它会告诉你这一行： conditions.append(reduce(operator.or_, queries)).

您可以将其更改为： conditions.append(reduce(operator.and_, queries)).

这可能会返回您的预期结果