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First version with all caches seemingly working ok. Started to remove the on-model wrappers that are not handled by the idmapper metaclass.

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Griatch 2013-07-11 15:59:03 +02:00
parent f1ba0ca177
commit 9e10a41e18
10 changed files with 144 additions and 165 deletions
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14
src/utils/idmapper/base.py
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@ -87,18 +87,18 @@ class SharedMemoryModelBase(ModelBase):
"Helper method to create property wrappers with unique names (must be in separate call)"
def _get(cls, fname):
"Wrapper for getting database field"
#print "_get wrapper:", fname, value, type(value)
value = _GA(cls, fieldname)
if isinstance(value, (basestring, int, float, bool)):
if type(value) in (basestring, int, float, bool):
return value
elif hasattr(value, "typeclass"):
return _GA(value, "typeclass")
return value
def _set(cls, fname, value):
"Wrapper for setting database field"
if hasattr(value, "dbobj"):
value = _GA(value, "dbobj")
else:
elif fname.isdigit() or fname.startswith("#"):
# we also allow setting using dbrefs, if so we try to load the matching object.
# (we assume the object is of the same type as the class holding the field, if
# not a custom handler must be used for that field)
@ -107,25 +107,27 @@ class SharedMemoryModelBase(ModelBase):
try:
value = cls._default_manager.get(id=dbid)
except ObjectDoesNotExist:
err = "Could not set %s. Tried to treat value '%s' as a dbref, but no matching object with that id was found."
err = err % (fname, value)
raise ObjectDoesNotExist(err)
# maybe it is just a name
pass
#print "_set wrapper:", fname, value, type(value), cls._get_pk_val(cls._meta)
_SA(cls, fname, value)
# only use explicit update_fields in save if we actually have a
# primary key assigned already (won't be when first creating object)
update_fields = [fname] if _GA(cls, "_get_pk_val")(_GA(cls, "_meta")) is not None else None
_GA(cls, "save")(update_fields=update_fields)
def _del(cls, fname):
"Wrapper for clearing database field - sets it to None"
_SA(cls, fname, None)
update_fields = [fname] if _GA(cls, "_get_pk_val")(_GA(cls, "_meta")) is not None else None
_GA(cls, "save")(update_fields=update_fields)
# create class wrappers
fget = lambda cls: _get(cls, fieldname)
fset = lambda cls, val: _set(cls, fieldname, val)
fdel = lambda cls: _del(cls, fieldname)
doc = "Wraps setting, saving and deleting the %s field." % fieldname
type(cls).__setattr__(cls, wrappername, property(fget, fset, fdel, doc))
# exclude some models that should not auto-create wrapper fields