我怎么能遍历很多的tomanyfield呢?

A simple question and yet I can't find an answer for it.

一个简单的问题，我却找不到答案。

I have a model with a ManyToMany field:

我有一个模型，有很多的tomany领域:

class Stuff(models.Model):
  things = models.ManyToManyField(Thing)

then in a different function I want to do this:

在另一个函数中，我想这样做:

myStuff = Stuff.objects.get(id=1)
for t in myStuff.things.all:
  # ...

But that is giving me:

但这给了我:

TypeError: 'instancemethod' object is not iterable

How can I iterate over a manyToManyField ?

如何遍历一个多字段?

3 个解决方案

#1

Try adding the () after all: myStuff.things.all()

尝试添加()毕竟:myStuff.things.all()

#2

ManyToManyField seems to have a different kind of Manager than your basic Django class. Looking at the source here, https://github.com/django/django/blob/master/django/db/models/fields/related_descriptors.py#L821, it seems you are looking for the related_val field which appears to contain the tuple of related objects references.

与基本的Django类不同，许多tomanyfield似乎有一种不同的管理器。在这里查看源代码，https://github.com/django/blob/master/django/db/models/fields/related_descriptors.py #L821，似乎您正在寻找related_val字段，该字段似乎包含相关对象引用的元组。

#3

-2

Like Abid A already answered, you are missing brackets ()

就像Abid A已经回答的那样，您缺少了方括号()

for t in myStuff.things.all():
    print t.myStuffs.all()

#1