Added the ability to clear an object from the global cache. This is rarely

needed (and can be potentially dangerous if the object depends on certain
startup methods to run and/or holds temporary attributes on themselves -
these will all be lost due to a new instance being created. It is hoever
necessary when it comes to renaming Exits - since the Command on the exit
must then change name too, recaching the Exit will also update the command.
Resolves issue 223.

src/commands/default/building.py

@@ -1015,6 +1015,9 @@ class CmdName(ObjManipCommand):
         if aliases:
             obj.aliases = aliases
             astring = " (%s)" % (", ".join(aliases))
+        # fix for exits - we need their exit-command to change name too
+        if obj.destination:
+            obj.flush_from_cache()
         caller.msg("Object's name changed to '%s'%s." % (newname, astring))
 
 

src/typeclasses/models.py

@@ -41,7 +41,7 @@ from src.server.models import ServerConfig
 from src.typeclasses import managers
 from src.locks.lockhandler import LockHandler
 from src.utils import logger, utils
-from src.utils.utils import make_iter, is_iter, has_parent, to_unicode, to_str
+from src.utils.utils import make_iter, is_iter, to_unicode, to_str
 
 __all__ = ("Attribute", "TypeNick", "TypedObject")
 
@@ -1447,3 +1447,11 @@ class TypedObject(SharedMemoryModel):
             return any(True for hpos, hperm in enumerate(_PERMISSION_HIERARCHY)
                        if hperm in [p.lower() for p in self.permissions] and hpos > ppos)
         return False
+
+    def flush_from_cache(self):
+        """
+        Flush this object instance from cache, forcing an object reload. Note that this
+        will kill all temporary attributes on this object since it will be recreated
+        as a new Typeclass instance.
+        """
+        self.__class__.flush_cached_instance(self)

src/utils/idmapper/base.py

@@ -12,7 +12,6 @@ Evennia changes:
 
 """
 
-from twisted.internet import reactor 
 from django.db.models.base import Model, ModelBase
 from manager import SharedMemoryManager