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Implemented and tested set_recache_protection() on all idmapped objects, to avoid them getting recached. Added successfully to nattribute handler.

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This commit is contained in:
Griatch 2014-05-15 10:05:41 +02:00
parent a617924fb0
commit 5e4af3f851
2 changed files with 10 additions and 6 deletions
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12
src/utils/idmapper/base.py
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@ -67,7 +67,7 @@ class SharedMemoryModelBase(ModelBase):
def _prepare(cls):
cls.__instance_cache__ = {}
cls._idmapper_cache_flush_safe = True
cls._idmapper_recache_protection = False
super(SharedMemoryModelBase, cls)._prepare()
def __new__(cls, classname, bases, classdict, *args, **kwargs):
@ -232,16 +232,16 @@ class SharedMemoryModel(Model):
def _flush_cached_by_key(cls, key, force=True):
"Remove the cached reference."
try:
if force or cls._idmapper_cache_flush_safe:
if force or not cls._idmapper_recache_protection:
del cls.__instance_cache__[key]
except KeyError:
pass
_flush_cached_by_key = classmethod(_flush_cached_by_key)
def _set_recache(cls, mode=True):
def set_recache_protection(cls, mode=True):
"set if this instance should be allowed to be recached."
cls._idmapper_cache_flush_safe = bool(mode)
_set_recache = classmethod(_set_recache)
cls._idmapper_recache_protection = bool(mode)
set_recache_protection = classmethod(set_recache_protection)
def flush_cached_instance(cls, instance, force=True):
"""
@ -263,7 +263,7 @@ class SharedMemoryModel(Model):
cls.__instance_cache__ = {}
else:
cls.__instance_cache__ = dict((key, obj) for key, obj in cls.__instance_cache__.items()
if not obj._idmapper_cache_flush_safe)
if obj._idmapper_recache_protection)
flush_instance_cache = classmethod(flush_instance_cache)
def save(cls, *args, **kwargs):