def get_root( self, id ):
ids = self.get_ids()
id = self.coerce_id(id)
if id not in ids:
raise ValueError
else:
r = Code.find( self.get_id_field() == id, Code.depth == 0, Code.nation == self.nation )
return r[0]
def getChild( self, id, parent, depth=None ):
depth = depth if depth else parent.depth + 1
r = Code.find(Code.nation == self.nation, Code.depth == depth, Code.cid == id, Code.rev == parent.rev, Code.parent == parent)
if r.count():
return r.one()
else:
c = store.add(Code())
c.depth = depth
c.cid = id
c.parent = parent
c.rev = parent.rev
c.nation = self.nation
return c
def get_ids( self ):
r = Code.find(Code.depth == 0, Code.nation == self.nation)
ids = tuple( set ( [c.rp for c in r] ) )
return ids
def get_latest_root( self ):
return Code.find(Code.nation == self.nation, Code.depth == 0).order_by( self.get_id_field() ).last()