def add_similar_notes(self):
'''Marks other notes as similar if they have similar tags, based on the relevance score.
DISREGARDS IF THE USER IS ALLOWED TO SEE THE NOTE, ALL NOTES MUST BE CHECKED BEFORE DISPLAYING
WHENEVER PRIVACY FEATURES ARE ADDED.'''
# This is a super expensive operation (N^3), so we need to be careful with this
tags = self.tag_set.all()
for tag in tags:
for note in tag.notes.exclude(id=self.id): # be careful no to add this note to itself
if not self.similar_notes.filter(id=note.id).exists() and relevance(tags, note.tag_set.all()) >= MIN_RELEVANCE:
self.similar_notes.add(note)
for chained_note in note.similar_notes.exclude(id=self.id): # be careful to not add this note to itself
if not self.similar_notes.filter(id=chained_note.id).exists():
self.similar_notes.add(chained_note)
def add_similar_data_points(self):
''' Adds related data points based upon tags (no NLP performed yet). Does NOT check if user has access to the data_point '''
tags = self.tag_set.all()
for tag in tags:
for data_point in tag.data_points.exclude(id=self.id):
if not self.similar_data_points.filter(id=data_point.id).exists() and relevance(tags, data_point.tag_set.all()):
self.similar_data_points.add(data_point)
for chained_point in data_point.similar_data_points.exclude(id=self.id):
if not self.similar_data_points.filter(id=data_point.id).exists() and relevance(tags, chained_point.tag_set.all()):
self.similar_data_points.add(chained_point)