class Tag(db.Model):
__tablename__ = "tags"
query_class = TagQuery
id = db.Column(db.Integer, primary_key=True)
slug = db.Column(db.Unicode(80), unique=True)
posts = db.dynamic_loader(Post, secondary=post_tags, query_class=PostQuery)
_name = db.Column("name", db.Unicode(80), unique=True)
def __str__(self):
return self.name
def _get_name(self):
return self._name
def _set_name(self, name):
self._name = name.lower().strip()
self.slug = slugify(name)
name = db.synonym("_name", descriptor=property(_get_name, _set_name))
@cached_property
def url(self):
return url_for("frontend.tag", slug=self.slug)
num_posts = db.column_property(
db.select([db.func.count(post_tags.c.post_id)]).where(
db.and_(post_tags.c.tag_id == id, Post.id == post_tags.c.post_id,
Post.access == Post.PUBLIC)).as_scalar())
def validate_username(self, field):
user = User.query.filter(db.and_(
User.username.like(field.data),
db.not_(User.id == self.user.id))).first()
if user:
raise ValidationError(message=gettext("This username is taken"))
def validate_username(self, field):
user = User.query.filter(
db.and_(User.username.like(field.data),
db.not_(User.id == self.user.id))).first()
if user:
raise ValidationError(message=gettext("This username is taken"))
def restricted(self, user):
if user and user.is_moderator:
return self
q = self.join(Post)
criteria = [Post.access == Post.PUBLIC]
if user:
criteria.append(Post.author_id == user.id)
if user.friends:
criteria.append(db.and_(Post.access == Post.FRIENDS, Post.author_id.in_(user.friends)))
return q.filter(reduce(db.or_, criteria))
def restricted(self, user):
if user and user.is_moderator:
return self
q = self.join(Post)
criteria = [Post.access==Post.PUBLIC]
if user:
criteria.append(Post.author_id==user.id)
if user.friends:
criteria.append(db.and_(Post.access==Post.FRIENDS,
Post.author_id.in_(user.friends)))
return q.filter(reduce(db.or_, criteria))
def restricted(self, user=None):
"""
Returns posts filtered for a) public posts b) posts authored by
the user or c) posts authored by friends
"""
if user and user.is_moderator:
return self
criteria = [Post.access == Post.PUBLIC]
if user:
criteria.append(Post.author_id == user.id)
if user.friends:
criteria.append(db.and_(Post.access == Post.FRIENDS,
Post.author_id.in_(user.friends)))
return self.filter(reduce(db.or_, criteria))
def restricted(self, user=None):
"""
Returns posts filtered for a) public posts b) posts authored by
the user or c) posts authored by friends
"""
if user and user.is_moderator:
return self
criteria = [Post.access == Post.PUBLIC]
if user:
criteria.append(Post.author_id == user.id)
if user.friends:
criteria.append(
db.and_(Post.access == Post.FRIENDS,
Post.author_id.in_(user.friends)))
return self.filter(reduce(db.or_, criteria))
def validate_email(self, field):
user = User.query.filter(db.and_(
User.email.like(field.data),
db.not_(User.id==self.user.id))).first()
if user:
raise ValidationError, gettext("This email is taken")
