class MyObject(models.Model):
type = models.CharField()
def __unicode__(self):
return self.type
#the type could be anything, its not predictable
MyObject.objects.create(type='a')
MyObject.objects.create(type='b')
MyObject.objects.create(type='c')
MyObject.objects.create(type='a')
是否可以检索按类型分组的查询集列表:
[[<MyObject: a>, <MyObject: a>], [<MyObject: b>], [<MyObject: c>]]
答案 0 :(得分:6)
这是一种可能的方式:
grouped = dict()
for obj in MyObject.objects.all():
grouped.setdefault(obj.type, []).append(obj)
这将产生一个像:
的字典{'a': [<obj>, <obj>], 'b':[<obj>]}
答案 1 :(得分:2)
也许您需要itertools
的 groupby 之类的内容 from itertools import groupby
data = MyObject.objects.all()
[list(result) for key, result in groupby(data, key=lambda item: item['type'])]