core: memory's updateEntityData improvments.

- passing @ALL@ to updateEntityData updates the specified key for all entities
    - passing @NONE@ to updateEntityData deletes the specified key

src/memory/memory.py

@@ -563,6 +563,7 @@ class Params(object):
             for profile in self.storage.getProfilesList():
                 if self.host.isConnected(profile):
                     self.host.bridge.paramUpdate(name, value, category, profile)
+                    self.host.trigger.point("paramUpdateTrigger", name, value, category, node[0], profile)
             return
 
         assert (node[0] == 'individual')
@@ -575,6 +576,7 @@ class Params(object):
             if self.host.isConnected(profile):  # key can not exists if profile is not connected
                 self.params[profile][(category, name)] = value
             self.host.bridge.paramUpdate(name, value, category, profile)
+            self.host.trigger.point("paramUpdateTrigger", name, value, category, node[0], profile)
             self.storage.setIndParam(category, name, value, profile)
 
 
@@ -804,9 +806,9 @@ class Memory(object):
 
     def updateEntityData(self, entity_jid, key, value, profile_key):
         """Set a misc data for an entity
-        @param entity_jid: JID of the entity
+        @param entity_jid: JID of the entity, or '@ALL@' to update all entities)
         @param key: key to set (eg: "type")
-        @param value: value for this key (eg: "chatroom")
+        @param value: value for this key (eg: "chatroom"), or '@NONE@' to delete
         @param profile_key: %(doc_profile_key)s
         """
         profile = self.getProfileName(profile_key)
@@ -814,10 +816,20 @@ class Memory(object):
             raise exceptions.UnknownProfileError(_('Trying to get entity data for a non-existant profile'))
         if not profile in self.entitiesCache:
             raise exceptions.ProfileNotInCacheError
-        entity_data = self.entitiesCache[profile].setdefault(entity_jid.userhost(), {})
-        entity_data[key] = value
-        if isinstance(value, basestring):
-            self.host.bridge.entityDataUpdated(entity_jid.userhost(), key, value, profile)
+        if entity_jid == "@ALL@":
+            entities_map = self.entitiesCache[profile]
+        else:
+            entity = entity_jid.userhost()
+            self.entitiesCache[profile].setdefault(entity, {})
+            entities_map = {entity: self.entitiesCache[profile][entity]}
+        for entity in entities_map:
+            entity_map = entities_map[entity]
+            if value == "@NONE@" and key in entity_map:
+                del entity_map[key]
+            else:
+                entity_map[key] = value
+            if isinstance(value, basestring):
+                self.host.bridge.entityDataUpdated(entity, key, value, profile)
 
     def getEntityData(self, entity_jid, keys_list, profile_key):
         """Get a list of cached values for entity