def slugify(obj, attribute=None):
"""Creates/updates the object's slug."""
ObjectClass = ContentType.objects.get_for_model(obj).model_class()
assert hasattr(ObjectClass,
'slug'), 'Object class does not have a slug field'
max_length = ObjectClass._meta.get_field('slug').max_length
# Every model with a slug field needs to have a _slug_field method returning
# the string that should be used to make the slug (e.g. self.title or self.name)
slug_content = None
if attribute and hasattr(ObjectClass, attribute):
slug_content = getattr(obj, attribute)
elif hasattr(ObjectClass, 'get_slug_content'):
slug_content = obj.get_slug_content()
elif hasattr(ObjectClass, 'name'):
slug_content = obj.name
else:
raise Exception(
'Object class has no get_slug_content method or name field')
if obj.pk and obj.slug:
# Already has a slug - check that slug_content hasn't changed
if dj_slugify(slug_content)[:max_length] == obj.slug:
# No change needed
return obj.slug
# Iteratively adjust slug to avoid duplicates
# Pattern is slug-content-1, slug-content-2, etc.
slug = orig = dj_slugify(slug_content)[:max_length]
for slug_number in itertools.count(1):
existing = ObjectClass.objects.for_user(
obj.created_by).exclude(pk=obj.pk).filter(slug=slug)
if not existing.exists():
break
# Add hyphen-number and then truncate
slug = '%s-%d' % (orig[:max_length - len(str(slug_number)) - 1],
slug_number)
return slug
def slughifi(value, do_slugify=True, overwrite_char_map={}):
"""
High Fidelity slugify - slughifi.py, v 0.1
Examples :
>>> text = 'C\'est déjà l\'été.'
>>> slughifi(text)
'cest-deja-lete'
>>> slughifi(text, overwrite_char_map={u'\'': '-',})
'c-est-deja-l-ete'
>>> slughifi(text, do_slugify=False)
"C'est deja l'ete."
# Normal slugify removes accented characters
>>> slugify(text)
'cest-dj-lt'
"""
# unicodification
if type(value) != UnicodeType:
value = unicode(value, 'utf-8', 'ignore')
# overwrite chararcter mapping
char_map.update(overwrite_char_map)
# try to replace chars
value = re.sub('[^a-zA-Z0-9\\s\\-]{1}', replace_char, value)
# apply django default slugify
if do_slugify:
value = dj_slugify(value)
return value.encode('ascii', 'ignore')
def slugify(s):
s = s.replace(':', '-')
return dj_slugify(s)
def slugify(s):
return dj_slugify(unidecode(s))
