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etiquette
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Add `max_len` parameter to Tag.qualified_name.

master
voussoir 2017-06-13 20:11:30 -07:00
parent 6cb13c7835
commit bc5df9f1c2
1 changed files with 29 additions and 6 deletions
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35
etiquette/objects.py
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@ -1086,16 +1086,39 @@ class Tag(ObjectBase, GroupableMixin):
self.photodb.log.debug('Committing - edit tag')
self.photodb.commit()
def qualified_name(self):
def qualified_name(self, *, max_len=None):
'''
Return the 'group1.group2.tag' string for this tag.
If `max_len` is not None, bring the length of the qualname down
by first stripping off ancestors, then slicing the end off of the
name if necessary.
('people.family.mother', max_len=25) -> 'people.family.mother'
('people.family.mother', max_len=15) -> 'family.mother'
('people.family.mother', max_len=10) -> 'mother'
('people.family.mother', max_len=4) -> 'moth'
'''
if max_len is not None:
if len(self.name) == max_len:
return self.name
if len(self.name) > max_len:
return self.name[:max_len]
if self._cached_qualified_name:
return self._cached_qualified_name
qualname = self.name
for parent in self.walk_parents():
qualname = parent.name + '.' + qualname
self._cached_qualified_name = qualname
qualname = self._cached_qualified_name
else:
qualname = self.name
for parent in self.walk_parents():
qualname = parent.name + '.' + qualname
self._cached_qualified_name = qualname
if max_len is None or len(qualname) <= max_len:
return qualname
while len(qualname) > max_len:
qualname = qualname.split('.', 1)[1]
return qualname
@decorators.transaction