I am working on a project with Django, Postgres. I typed that:
user_test = User.objects.first() food_test = Food.objects.first() user.food.add(food_test)
When I type that:
user.food
I got that:
<django.db.models.fields.related_descriptors.create_forward_many_to_many_manager.<locals>.ManyRelatedManager object at 0x7471bd30>
Then if I type that:
user.food.name
I got that:
AttributeError: 'ManyRelatedManager' object has no attribute 'name'
Whereas the field name exists.
Models.py:
class Food(models.Model): name = models.CharField(max_length=1000, default="default", null=True) def __str__(self): return self.name class User(models.Model): food = models.ManyToManyField(Food) first = models.CharField(max_length=1000, default="default", null=True) def __str__(self): return self.first
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Answer
M2M relationship means – you have many objects.
user.food.name
get attrbute name
from M2M manager.
Probably you mean user.food.all().name
– this code get attrbute name
of Queryset.
Of course, I understand. You want user.food.first().name
– this get name
of first food if it exists or exception again, if foodQueryset
contains Nothing.