def save(tag_obj):
coll = Tag.collection()
id = coll.save(tag_obj.serialize())
return id
def save_tag(tag_name, description=None):
tag_obj = Tag()
tag_obj.name = tag_name
tag_obj.description = description
tag_obj._id = save(tag_obj)
return tag_obj
def get_tag(tag_name):
coll = Tag.collection()
dic = coll.find_one({"name": tag_name})
return Tag.unserialize(dic) if dic is not None else None