Question

我有《示范公约》:

class TreeComment(models.Model):
   parent = models.ForeignKey( self , null=True, blank=True, verbose_name= Parent ) 
   title = models.TextField(_( Title ), blank=True)

我想打上<代码>TreeComment.objects.all(),并将结果值列入一些清单:

for e in TreeComment.objects.all():
    some_list += e

能否将所有价值观列入清单,包括父母的价值?

Not whole parent object but id only (to prevent unnecessary DB calls and joins). After that I will process it without DB calls inside the bussiness logic.

Answer 1

如果你想把问回作为一份清单尝试

TreeComment.objects.values_list()

返回[(1, u some Owner ), ......] 1 是父母的id, u 部分所有权为所有权价值

https://docs.djangoproject.com/en/dev/ref/models/querysets/# Values-list”rel=“nofollow”> 价值_list docs

Answer 2

I m 思路 2 解决办法

1) You create a method get_parent(self) inside TreeComment class. Then in your themplate you could do {% for elem in some_list %}{{ elem.get_parent.whatever_method }}{% endfor %}

(2) 您可使用一种包含(所有权)的习俗结构,并且从树木配制中读出的人口方法。

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