Resolved: Django model, how to auto-increment an object's value

In this post, we will see how to resolve Django model, how to auto-increment an object’s value

Question:

So I have this Django model.py:

class Product(models.Model):
    name = models.CharField(max_length=128)
    views = models.IntegerField(default=0, blank=True)

I would like the views attribute, to have an auto randomly generated number. So something like this:

class Product(models.Model):
    name = models.CharField(max_length=128)
    views = models.IntegerField(default=0, blank=True)

    def auto_views(self):
        return randint(0,200)

and the views attribute will automatically take the value of the auto_views() function when creating a new product. In the same way as an auto-slug would work.

Best Answer:

You can specify a callable for the default:

from random import randint


def auto_views():
    return randint(0, 200)


class Product(models.Model):
    name = models.CharField(max_length=128)
    views = models.IntegerField(default=auto_views, blank=True)

If you have better answer, please add a comment about this, thank you!

Source: Stackoverflow.com

Resolved: Django model, how to auto-increment an object’s value

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