Returns True if there is a publishable version newer than the one
already published.
"""
new_publishable = False
if not self.chunk_set.exists():
return False
for chunk in self:
change = chunk.publishable()
if not change:
return False
if not new_publishable and not change.publish_log.exists():
new_publishable = True
return new_publishable
new_publishable = cached_in_field('_new_publishable')(is_new_publishable)
def is_published(self):
return self.publish_log.exists()
published = cached_in_field('_published')(is_published)
def get_on_track(self):
if self.published:
return -1
stages = [ch.stage.ordering if ch.stage is not None else 0
for ch in self]
if not len(stages):
return 0
return min(stages)
on_track = cached_in_field('_on_track')(get_on_track)
try:
return self.assert_publishable()
except AssertionError, e:
return e
else:
return None
def accessible(self, request):
return self.public or request.user.is_authenticated()
def is_new_publishable(self):
change = self.publishable()
if not change:
return False
return not change.publish_log.exists()
new_publishable = cached_in_field('_new_publishable')(is_new_publishable)
def is_published(self):
return self.publish_log.exists()
published = cached_in_field('_published')(is_published)
def is_changed(self):
if self.head is None:
return False
return not self.head.publishable
changed = cached_in_field('_changed')(is_changed)
@cached_in_field('_short_html')
def short_html(self):
return render_to_string(
'catalogue/image_short.html', {'image': self})
