python - django admin 搜索多个词

Question

当搜索表达式有多个单词并且我想执行 startswith 搜索时，我在使用 search_fields 时遇到问题

我有课

class Foo(models.Model):
  kw = models.CharField(max_length = 255)
  ...

class FooAdmin(admin.ModelAdmin):
  search_fields = ('^kw',)

'^' 表示我想执行 startswith 搜索。如果我正在寻找 kw 'foo fuu'，django 将执行查询:

select * from app_foo where `foo`.`kw` like 'foo%' and `foo`.`kw` like 'fuu%' 

这个查询显然给出了零结果。我应该怎么做才能让引擎寻找 'foo fuu%' ？

Answer 1

如何重写 self.query 让 split() 不起作用？

from django.contrib.admin.views.main import ChangeList


class UnsplitableUnicode(str):
    "An object that behaves like a unicode string but cannot be split()"
    def split(self, *args, **kwargs):
        return [self]

class MultiWordSearchChangeList(ChangeList):
    "Changelist that allows searches to contain spaces"
    def get_query_set(self, request):
        self.query = UnsplitableUnicode(self.query)
        return super(MultiWordSearchChangeList, self).get_query_set(request)

class FooAdmin(admin.ModelAdmin):
    def get_changelist(self, request, **kwargs):
        return MultiWordSearchChangeList