def slugify(model, field_name):
"""
Given the instance of a model and a field to slugify, generates a unique
slug. If a standard one exists in the DB, or the generated slug is
numeric-only, a hyphen and the object's ID is appended to it to generate a
unique and alphanumeric one.
"""
slug = do_slug(getattr(model, field_name, ''))
if not slug:
slug = randstr(6)
try:
is_int = isinstance(int(slug), int)
except ValueError:
is_int = False
exists = bool(model.__class__.query.filter_by(slug=slug).count())
if is_int or exists:
extra = model.pk
if not extra:
extra = randstr(6)
slug += u'-%s' % extra
return slug
def slugify(text, instance):
"""
Given the instance of a model and a field to slugify, generates a unique
slug. If a standard one exists in the DB, or the generated slug is
numeric-only, a hyphen and the object's ID is appended to it to generate a
unique and alphanumeric one.
"""
slug = do_slug(text)
if not slug:
slug = randstr(6)
try:
is_int = isinstance(int(slug), int)
except ValueError:
is_int = False
exists = bool(instance.__class__.query.filter_by(slug=slug).count())
if is_int or exists:
# FIXME: In specific cases is finding itself as a duplicate.
# Investigate.
extra = instance.pk or randstr(6)
slug += u'-%s' % extra
return slug
