Setting of model attribute which lists all related items

Question

My models:

class Question(models.Model):
    question_text = models.CharField(max_length=200)

class Choice(models.Model):
    question = models.ForeignKey(Question)
    choice_text = models.CharField(max_length=200)

I want to set new attribute 'choices' to Question model so it lists all Choices related to the question. It should be something like "choices = X.choice_set.all()?"

wolendranh · Accepted Answer · 2014-12-06 22:20:02Z

2

You can add

class Choice(models.Model):
    question = models.ForeignKey(Question, related_name='choices')

To have backward relation also. And, Yes you can add it attribute like Property, from django docs:

Also known as “managed attributes”, and a feature of Python since version 2.2. This is a neat way to implement attributes whose usage resembles attribute access, but whose implementation uses method calls.

@property
def choices:
 return self.choice_set.all()

answered Dec 6, 2014 at 22:20

wolendranh

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