class Group(Content, LocalRolesMixin, ContextACLMixin):
type_name = u"Group"
type_title = _(u"Group")
add_permission = "Add %s" % type_name
title = u""
description = u""
icon = u"user" #FIXME no group icon!?
def __init__(self, **kwargs):
#Things like created, creator etc...
super(Group, self).__init__()
self.__members__ = OOSet()
self.update(event=False, **kwargs)
@property
def principal_name(self):
""" The way the security system likes to check names
to avoid collisions with userids.
"""
return u"group:%s" % self.__name__
@property
def members(self):
return self.__members__
@members.setter
def members(self, value):
self.__members__.clear()
self.__members__.update(value)
class Group(Content, LocalRolesMixin, ContextACLMixin):
type_name = u"Group"
type_title = _(u"Group")
add_permission = "Add %s" % type_name
title = u""
description = u""
css_icon = "glyphicon glyphicon-user" #FIXME no group icon!?
def __init__(self, **kwargs):
#Things like created, creator etc...
super(Group, self).__init__()
self.__members__ = OOSet()
self.update(event = False, **kwargs)
@property
def principal_name(self):
""" The way the security system likes to check names
to avoid collisions with userids.
"""
return u"group:%s" % self.__name__
@property
def members(self):
return self.__members__
@members.setter
def members(self, value):
self.__members__.clear()
self.__members__.update(value)
class Content(Base, Folder):
title = ""
description = ""
default_view = u"view"
delegate_view = None
nav_visible = True
nav_title = None
listing_visible = True
search_visible = True
show_byline = False
custom_addable = False
def __init__(self, **kw):
#To set that this should keep track of ordering. See Folder
#If _order is set to None, ordering isn't stored
self._order = ()
Folder.__init__(self)
super(Content, self).__init__(**kw)
def get_nav_title(self):
nav_title = getattr(self, 'nav_title', None)
if nav_title:
return nav_title
title = getattr(self, 'title', '')
return title and title or self.__name__
@property
def tags(self): return getattr(self, '__tags__', ())
@tags.setter
def tags(self, value):
#Is this the right way to mutate objects, or should we simply clear the contents?
if value:
self.__tags__ = OOSet(value)
else:
if hasattr(self, '__tags__'):
delattr(self, '__tags__')
@property
def custom_addable_types(self):
return frozenset(getattr(self, '_custom_addable_types', ()))
@custom_addable_types.setter
def custom_addable_types(self, value):
if not hasattr(self, '_custom_addable_types'):
self._custom_addable_types = OOSet(value)
if set(value) != set(self._custom_addable_types):
self._custom_addable_types.clear()
self._custom_addable_types.update(value)
@custom_addable_types.deleter
def custom_addable_types(self):
if hasattr(self, '_custom_addable_types'):
delattr(self, '_custom_addable_types')
class NounBayesClassifier(Persistent):
"""
"""
implements(IContentClassifier)
def __init__(self,tagger=None,noNounRanksToKeep = 20):
"""
"""
self.noNounRanksToKeep = noNounRanksToKeep
self.trainingDocs = PersistentMapping()
self.allNouns = OOSet()
self.classifier = None
self.trainAfterUpdate = True
def addTrainingDocument(self,doc_id,tags):
"""
"""
storage = getUtility(INounPhraseStorage)
importantNouns = storage.getNounTerms(doc_id,self.noNounRanksToKeep)
self.trainingDocs[doc_id] = (importantNouns,tags)
self.allNouns = union(self.allNouns,OOSet(importantNouns))
def train(self):
"""
"""
presentNouns = dict()
trainingData = []
if not self.allNouns:
storage = getUtility(INounPhraseStorage)
for key in self.trainingDocs.keys():
importantNouns = storage.getNounTerms(
key,
self.noNounRanksToKeep)
self.allNouns = union(self.allNouns,OOSet(importantNouns))
for item in self.allNouns:
presentNouns.setdefault(item,0)
for (nouns,tags) in self.trainingDocs.values():
nounPresence = presentNouns.copy()
for noun in nouns:
nounPresence[noun] = 1
for tag in tags:
trainingData.append((nounPresence,tag,))
if trainingData:
self.classifier = NaiveBayesClassifier.train(trainingData)
def classify(self,doc_id):
"""
"""
if not self.classifier:
return []
presentNouns = dict()
for item in self.allNouns:
presentNouns.setdefault(item,0)
storage = getUtility(INounPhraseStorage)
importantNouns = storage.getNounTerms(doc_id,self.noNounRanksToKeep)
for noun in importantNouns:
if noun in presentNouns.keys():
presentNouns[noun] = 1
return self.classifier.classify(presentNouns)
def probabilityClassify(self,doc_id):
"""
"""
if not self.classifier:
return []
presentNouns = dict()
for item in self.allNouns:
presentNouns.setdefault(item,0)
storage = getUtility(INounPhraseStorage)
importantNouns = storage.getNounTerms(doc_id,self.noNounRanksToKeep)
for noun in importantNouns:
if noun in presentNouns.keys():
presentNouns[noun] = 1
return self.classifier.prob_classify(presentNouns)
def clear(self):
"""Wipes the classifier's data.
"""
self.allNouns.clear()
self.trainingDocs.clear()
def tags(self):
if not self.classifier:
return []
return self.classifier.labels()
