A pre_save signal that will automatically generate a slug for your model based on the "title" attribute, and will store the new slug in the "slug" attribute.
USAGE: from django.db.models.signals import pre_save
from YOURPACKAGE import slug_generator
pre_save.connect(slug_generator, sender=YOURMODEL)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | from django.template.defaultfilters import slugify
def find_available_slug(object, instance, slug):
"""
Recursive method that will add underscores to a slug field
until a free value is located
"""
try:
sender_node = object.objects.get(slug=slug)
except object.DoesNotExist:
instance.slug = slug
else:
slug = '%s_' % slug
find_available_slug(object, instance, slug)
return
def slug_generator(sender, **kwargs):
""" Generates a unique slug for a node """
instance = kwargs['instance']
if instance.slug is not '':
return
slug = slugify(instance.title)
find_available_slug(sender, instance, slug)
|
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