def tag(self, obj, tagName, tagger=None):
"""
"""
# check to see if that tag exists. Put the object attribute first,
# since each object should only have a handful of tags and the object
# reference is indexed. As long as this is the case, it doesn't matter
# whether the name or catalog attributes are indexed because selecting
# from a small set of results is fast even without an index.
if self.store.findFirst(
Tag,
AND(Tag.object == obj, Tag.name == tagName,
Tag.catalog == self)):
return
# if the tag doesn't exist, maybe we need to create a new tagname object
self.store.findOrCreate(_TagName, name=tagName, catalog=self)
# Increment only if we are creating a new tag
self.tagCount += 1
Tag(store=self.store,
object=obj,
name=tagName,
catalog=self,
created=Time(),
tagger=tagger)
def now(self):
# Testing hook
return Time()
