def save(self, *args, **kwargs):
"""
Set the initial ordering value.
"""
if self._order is None:
lookup = self.with_respect_to()
concrete_model = base_concrete_model(Orderable, self)
self._order = concrete_model.objects.filter(**lookup).count()
super(Orderable, self).save(*args, **kwargs)
def delete(self, *args, **kwargs):
"""
Update the ordering values for siblings.
"""
lookup = self.with_respect_to()
lookup["_order__gte"] = self._order
concrete_model = base_concrete_model(Orderable, self)
after = concrete_model.objects.filter(**lookup)
after.update(_order=models.F("_order") - 1)
super(Orderable, self).delete(*args, **kwargs)
def save(self, *args, **kwargs):
"""
Create a unique slug from the title by appending an index.
"""
if not self.slug:
# For custom content types, use the ``Page`` instance for slug
# lookup.
concrete_model = base_concrete_model(Slugged, self)
self.slug = self.get_slug()
i = 0
while True:
if i > 0:
if i > 1:
self.slug = self.slug.rsplit("-", 1)[0]
self.slug = "%s-%s" % (self.slug, i)
qs = concrete_model.objects.all()
if self.id is not None:
qs = qs.exclude(id=self.id)
try:
qs.get(slug=self.slug)
except ObjectDoesNotExist:
break
i += 1
super(Slugged, self).save(*args, **kwargs)
def save(self, *args, **kwargs):
"""
Create the description from the content if none given, and create a
unique slug from the title by appending an index.
"""
if self.publish_date is None:
# publish_date will be blank when a blog post is created from the
# quick blog form in the admin dashboard.
self.publish_date = datetime.now()
if not self.description:
for s in ("</p>", "\n", ". "):
if s in self.content:
self.description = self.content.split(s)[0] + s
break
else:
self.description = truncatewords_html(self.content, 100)
if not self.slug:
# For custom content types, use the ``Page`` instance for slug
# lookup.
concrete_model = base_concrete_model(Displayable, self)
self.slug = self.get_slug()
i = 0
while True:
if i > 0:
if i > 1:
self.slug = self.slug.rsplit("-", 1)[0]
self.slug = "%s-%s" % (self.slug, i)
qs = concrete_model.objects.all()
if self.id is not None:
qs = qs.exclude(id=self.id)
try:
qs.get(slug=self.slug)
except ObjectDoesNotExist:
break
i += 1
super(Displayable, self).save(*args, **kwargs)
