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Added weak reverse references from all handlers.

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Griatch 2014-05-10 17:12:49 +02:00
parent 4e3789cede
commit 0030530021
6 changed files with 20 additions and 22 deletions
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19
src/typeclasses/models.py
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@ -29,7 +29,6 @@ these to create custom managers.
import sys
import re
import traceback
import weakref
from django.db import models
from django.conf import settings
@ -216,7 +215,7 @@ class AttributeHandler(object):
def _recache(self):
self._cache = dict(("%s-%s" % (to_str(attr.db_key).lower(),
attr.db_category.lower() if attr.db_category else None), attr)
for attr in _GA(self.obj, self._m2m_fieldname).filter(
for attr in getattr(self.obj, self._m2m_fieldname).filter(
db_model=self._model, db_attrtype=self._attrtype))
#set_attr_cache(self.obj, self._cache) # currently only for testing
@ -319,7 +318,7 @@ class AttributeHandler(object):
attr_obj = Attribute(db_key=key, db_category=category,
db_model=self._model, db_attrtype=self._attrtype)
attr_obj.save() # important
_GA(self.obj, self._m2m_fieldname).add(attr_obj)
getattr(self.obj, self._m2m_fieldname).add(attr_obj)
self._cache[cachekey] = attr_obj
if lockstring:
attr_obj.locks.add(lockstring)
@ -540,7 +539,7 @@ class TagHandler(object):
def _recache(self):
"Update cache from database field"
self._cache = dict(("%s-%s" % (tag.db_key, tag.db_category), tag)
for tag in _GA(self.obj, self._m2m_fieldname).filter(
for tag in getattr(self.obj, self._m2m_fieldname).filter(
db_model=self._model, db_tagtype=self._tagtype))
def add(self, tag, category=None, data=None):
@ -556,7 +555,7 @@ class TagHandler(object):
# considered part of making the tag unique)
tagobj = Tag.objects.create_tag(key=tagstr, category=category, data=data,
model=self._model, tagtype=self._tagtype)
_GA(self.obj, self._m2m_fieldname).add(tagobj)
getattr(self.obj, self._m2m_fieldname).add(tagobj)
if self._cache is None:
self._recache()
cachestring = "%s-%s" % (tagstr, category)
@ -589,13 +588,13 @@ class TagHandler(object):
# that when no objects reference the tag anymore (how to check)?
tagobj = self.obj.db_tags.filter(db_key=tagstr, db_category=category)
if tagobj:
_GA(self.obj, self._m2m_fieldname).remove(tagobj[0])
getattr(self.obj, self._m2m_fieldname).remove(tagobj[0])
self._recache()
def clear(self):
"Remove all tags from the handler"
for tag in _GA(self.obj, self._m2m_fieldname).filter(db_model=self._model, db_tagtype=self._tagtype):
_GA(self.obj, self._m2m_fieldname).remove(tag)
for tag in getattr(self.obj, self._m2m_fieldname).filter(db_model=self._model, db_tagtype=self._tagtype):
getattr(self.obj, self._m2m_fieldname).remove(tag)
self._recache()
def all(self, category=None, return_key_and_category=False):
@ -608,7 +607,7 @@ class TagHandler(object):
self._recache()
if category:
category = category.strip().lower() if category is not None else None
matches = _GA(self.obj, self._m2m_fieldname).filter(db_category=category,
matches = getattr(self.obj, self._m2m_fieldname).filter(db_category=category,
db_tagtype=self._tagtype,
db_model=self._model).values_list("db_key")
else:
@ -621,7 +620,7 @@ class TagHandler(object):
return [to_str(p.db_key) for p in matches]
return []
#return [to_str(p[0]) for p in _GA(self.obj, self._m2m_fieldname).filter(db_category__startswith=self.prefix).values_list("db_key") if p[0]]
#return [to_str(p[0]) for p in getattr(self.obj, self._m2m_fieldname).filter(db_category__startswith=self.prefix).values_list("db_key") if p[0]]
def __str__(self):
return ",".join(self.all())