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Continued work on reworking the oobhandler.

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This commit is contained in:
Griatch 2015-02-11 22:16:54 +01:00
parent eda15ccc45
commit 03b4b9ddb4
2 changed files with 100 additions and 146 deletions
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48
evennia/utils/idmapper/base.py
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@ -27,35 +27,6 @@ _GA = object.__getattribute__
_SA = object.__setattr__
_DA = object.__delattr__
def at_field_post_save(sender, instance=None, update_fields=None, raw=False, **kwargs):
"""
Called at the beginning of the field save operation. The save method
must be called with the update_fields keyword in order to be most efficient.
This method should NOT save; rather it is the save() that triggers this
function. Its main purpose is to allow to plug-in a save handler and oob
handlers.
"""
if raw:
return
if update_fields:
# this is a list of strings at this point. We want field objects
update_fields = (_GA(_GA(instance, "_meta"), "get_field_by_name")(field)[0] for field in update_fields)
else:
# meta.fields are already field objects; get them all
update_fields = _GA(_GA(instance, "_meta"), "fields")
for field in update_fields:
fieldname = field.name
handlername = "_at_%s_postsave" % fieldname
handler = _GA(instance, handlername) if handlername in _GA(sender, '__dict__') else None
if callable(handler):
handler()
trackerhandler = _GA(instance, "_trackerhandler") if "_trackerhandler" in _GA(instance, '__dict__') else None
if trackerhandler:
trackerhandler.update(fieldname, _GA(instance, fieldname))
# connect the signal to catch field changes
post_save.connect(at_post_field_save, dispatch_uid="at_post_field_save")
# References to db-updated objects are stored here so the
# main process can be informed to re-cache itself.
@ -362,6 +333,25 @@ class SharedMemoryModel(Model):
super(SharedMemoryModel, cls).save(*args, **kwargs)
callFromThread(_save_callback, self, *args, **kwargs)
# update field-update hooks and eventual OOB watchers
if "update_fields" in kwargs:
# get field objects from their names
update_fields = (self._meta.get_field_by_name(field)[0] for field in kwargs["update_fields"])
else:
# meta.fields are already field objects; get them all
update_fields = self._meta.fields
for field in update_fields:
fieldname = field.name
# if a hook is defined it must be named exactly on this form
hookname = "_at_%s_postsave" % fieldname
if hasattr(self, hookname) and callable(_GA(self, hookname)):
_GA(self, hookname)()
# if a trackerhandler is set on this object, update it with the
# fieldname and the new value
trackername = "_oob_at_%s_postsave" % fieldname
if hasattr(self, trackername):
_GA(self, trackername).trigger_update(fieldname, _GA(self, fieldname))
class WeakSharedMemoryModelBase(SharedMemoryModelBase):
"""