django rest framework SearchFilter 增加搜索UUID功能

from rest_framework.filters import SearchFilter


class UUIDSearchBackend(SearchFilter):
    def get_search_terms(self, request):
        params = request.query_params.get(self.search_param, '')
        params = params.replace('\x00', '')
        params = params.replace(',', ' ')
        params_list = params.split()
        new_list = []
        for item in params_list:
            uuid = re.match(r'[0-9a-f]{8}(-[0-9a-f]{4}){3}-[0-9a-f]{12}', item)
            if uuid:
                uuid = uuid.group()
                uuid = re.sub(r'-', '', uuid)
                new_list.append(uuid)
            else:
                new_list.append(item)
        return new_list

这里重写了SearchFilter的get_search_terms

简单的来说就是将查询参数里面search 的内容进行分割，然后符合UUID的格式的字段去掉 - ，返回查询term的list。

在SearchFilter内部会重新将这个list拆开进行模糊搜索