How to Update Auto Slug Field ?

these were my models file before

class retailers(models.Model):

country = models.TextField()

category = models.TextField()

title = models.CharField(max_length=300)

slug = AutoSlugField(populate_from=['country', 'category', 'title'])

I added some data to it and The slug field successfully Auto populated it.

Now i added a new Field Shop and want to edit the Previous SLUG data to include the shop field as well, How can i do that ?

class retailers(models.Model):

shop = models.TextField()

country = models.TextField()

category = models.TextField()

title = models.CharField(max_length=300)

slug = AutoSlugField(populate_from=['country', 'shop', 'category', 'title'])

I tried the Following, but it didn’t work.

R = retailers.objects.filter(id = 1).update(slug = ['country', 'shop', 'category', 'title'])

R[0].slug

Output

"['country', 'shop', 'category', 'title']"

The output is not what i a looking for. Please Help

alrite i found solution here

https://docs.djangoproject.com/en/3.2/topics/migrations/#data-migrations