Django：名称＆＃x27; filter_name__icontains＆＃x27;未定义
我正在使用Django（DRF）应用程序中的自定义过滤器。
基本过滤（IEXACT）正在工作：
queryset = queryset.filter(**{filter_name: term.get(filter_name)}) # OK
但是我想用IContains逻辑过滤Charfields：
queryset = queryset.filter(**{filter_name__icontains: term.get(filter_name)}) # ERROR
错误文本
名称：名称'filter_name__icontains'未定义
问题：我如何支持函数中的icontains过滤？
我的代码
from django.db.models import QuerySet, CharField
from rest_framework.filters import BaseFilterBackend
from rest_framework.request import Request
class AbstractFilterBackend(BaseFilterBackend):
@staticmethod
def __execute_default_filters(queryset, terms: list):
for term in terms:
filter_name = next(iter(term.keys()))
if hasattr(queryset.model, filter_name):
if queryset.model._meta.get_field(filter_name).__class__ is CharField:
queryset = queryset.filter(**{filter_name__icontains: term.get(filter_name)})
else:
queryset = queryset.filter(**{filter_name: term.get(filter_name)})
return queryset
I am working on custom filter in my Django (DRF) app.
Basic filtering (iexact) is working:
queryset = queryset.filter(**{filter_name: term.get(filter_name)}) # OK
But I want to filter CharFields with icontains logic:
queryset = queryset.filter(**{filter_name__icontains: term.get(filter_name)}) # ERROR
Error text
NameError: name 'filter_name__icontains' is not defined
Question: how can I support icontains filtering in my function?
My code
from django.db.models import QuerySet, CharField
from rest_framework.filters import BaseFilterBackend
from rest_framework.request import Request
class AbstractFilterBackend(BaseFilterBackend):
@staticmethod
def __execute_default_filters(queryset, terms: list):
for term in terms:
filter_name = next(iter(term.keys()))
if hasattr(queryset.model, filter_name):
if queryset.model._meta.get_field(filter_name).__class__ is CharField:
queryset = queryset.filter(**{filter_name__icontains: term.get(filter_name)})
else:
queryset = queryset.filter(**{filter_name: term.get(filter_name)})
return queryset
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filter_name是一个变量，但您没有定义filter_name__icontains。您可以为此使用字符串格式：While
filter_nameis a variable, you did not definefilter_name__icontains. You can use string formatting for this: