def validate_slug(self, field):
if len(field.data) > 50:
raise ValidationError, _("Slug must be less than 50 characters")
slug = slugify(field.data) if field.data else slugify(self.title.data)[:50]
posts = Post.query.filter_by(slug=slug)
if self.obj:
posts = posts.filter(db.not_(Post.id == self.obj.id))
if posts.count():
error = _("This slug is taken") if field.data else _("Slug is required")
raise ValidationError, error
def _set_tags(self, tags):
self._tags = tags
if self.id:
# ensure existing tag references are removed
d = db.delete(post_tags, post_tags.c.post_id==self.id)
db.engine.execute(d)
for tag in set(self.taglist):
slug = slugify(tag)
tag_obj = Tag.query.filter(Tag.slug==slug).first()
if tag_obj is None:
tag_obj = Tag(name=tag, slug=slug)
db.session.add(tag_obj)
tag_obj.posts.append(self)
def _set_name(self, name):
self._name = name.lower().strip()
self.slug = slugify(name)
def linked_taglist(self):
return [(tag, route.url_for('tag', slugify(tag))) \
for tag in self.taglist]
def _set_slug(self, slug):
if slug:
self._slug = slugify(slug)
def _set_title(self, title):
self._title = title.lower().strip()
if self.slug is None:
self.slug = slugify(title)[:50]
