How can I iterate over ManyToManyField?
Question:
A simple question and yet I can’t find an answer for it.
I have a model with a ManyToMany field:
class Stuff(models.Model):
things = models.ManyToManyField(Thing)
then in a different function I want to do this:
myStuff = Stuff.objects.get(id=1)
for t in myStuff.things.all:
# ...
But that is giving me:
TypeError: 'instancemethod' object is not iterable
How can I iterate over a manyToManyField ?
Answers:
Try adding the () after all: myStuff.things.all()
Like Abid A already answered, you are missing brackets ()
for t in myStuff.things.all():
print t.myStuffs.all()
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.
A simple question and yet I can’t find an answer for it.
I have a model with a ManyToMany field:
class Stuff(models.Model):
things = models.ManyToManyField(Thing)
then in a different function I want to do this:
myStuff = Stuff.objects.get(id=1)
for t in myStuff.things.all:
# ...
But that is giving me:
TypeError: 'instancemethod' object is not iterable
How can I iterate over a manyToManyField ?
Try adding the () after all: myStuff.things.all()
Like Abid A already answered, you are missing brackets ()
for t in myStuff.things.all():
print t.myStuffs.all()
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.