对不起,但我不知道我应该给这个问题什么标题(建议?)
我有以下模型:
class Stuff(models.Model):
summer = models.CharField()
winter = models.CharField()
#other fields
和以下观点:
def get_stuff(request, type, id):
if type == 'summer':
qs = Stuff.objects.filter(summer=id)
if type == 'winter':
qs = Stuff.objects.filter(winter=id)
return qs
既然我知道要查看哪个字段,如何只使用一次查询?像这样:
Stuff.objects.filter(type=id) #type = summer or winter field
例子:
type='summer'
id=1
Stuff.objects.filter(type=id) => Stuff.objects.filter(summer=id)
type='winter'
id=1
Stuff.objects.filter(type=id) => Stuff.objects.filter(winter=id)