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12. How to use slug field with django for more readability?

Slug is a part of a URL which identifies a particular page on a website in a form readable by users. For making it work django offers us a slugfield. It can be implimented as under. We already had a model Article we will be adding slugfield to it to make it user readable.

from django.utils.text import slugify
class Article(models.Model):
    headline = models.CharField(max_length=100)
    . . .
    slug = models.SlugField(unique=True)

    def save(self, *args, **kwargs):
        self.slug = slugify(self.headline)
        super(Article, self).save(*args, **kwargs)
    . . .

>>> u1 = User.objects.get(id=1)
>>> from datetime import date
>>> a1 = Article.objects.create(headline="todays market report", pub_date=date(2018, 3, 6), reporter=u1)
>>> a1.save()
// slug here is auto-generated, we haven't created it in the above create method.
>>> a1.slug
'todays-market-report'
Slug is useful because:
it’s human friendly (eg. /blog/ instead of /1/).
it’s good SEO to create consistency in title, heading and URL.
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