Source Code for Module ZenRelations.PrimaryPathObjectManager

  1  ########################################################################### 
  2  # 
  3  # This program is part of Zenoss Core, an open source monitoring platform. 
  4  # Copyright (C) 2007, Zenoss Inc. 
  5  # 
  6  # This program is free software; you can redistribute it and/or modify it 
  7  # under the terms of the GNU General Public License version 2 as published by 
  8  # the Free Software Foundation. 
  9  # 
 10  # For complete information please visit: http://www.zenoss.com/oss/ 
 11  # 
 12  ########################################################################### 
 13   
 14  __doc__="""PrimaryPathObjectManager 
 15   
 16  $Id: RelationshipBase.py,v 1.26 2003/10/03 16:16:01 edahl Exp $""" 
 17   
 18  __version__ = "$Revision: 1.26 $"[11:-2] 
 19   
 20  import logging 
 21  log = logging.getLogger("zen.PrimaryPathObjectManager") 
 22   
 23  # base classes for PrimaryPathObjectManager 
 24  from RelCopySupport import RelCopyContainer 
 25  from Acquisition import Implicit, aq_base 
 26  from OFS.ObjectManager import ObjectManager 
 27  from AccessControl.Role import RoleManager 
 28  import App.Undo 
 29   
 30  from ZItem import ZItem 
 31   
 32   
 33  from Products.ZenUtils.Utils import getObjByPath 
 34   
 35  from Products.BTreeFolder2.BTreeFolder2 import BTreeFolder2 
 36   
 37   
 38   
 39 -class PrimaryPathManager(ZItem, Implicit, RoleManager): 
 40   
 41 -    def getPrimaryPath(self, fromNode=None): 
 42          """ 
 43          Return the primary path of this object by following __primary_parent__ 
 44          """ 
 45          ppath = [] 
 46          obj = aq_base(self) 
 47          while True: 
 48              ppath.append(obj.id) 
 49              parent = getattr(obj, "__primary_parent__", None) 
 50              if parent is None: break 
 51              obj = parent 
 52          ppath.reverse() 
 53          basepath = getattr(obj, "zPrimaryBasePath", []) 
 54          for i in range(len(basepath)-1,-1,-1): ppath.insert(0,basepath[i]) 
 55          try: 
 56              idx = ppath.index(fromNode) 
 57              ppath = ppath[idx+1:] 
 58          except ValueError: pass 
 59          return tuple(ppath) 
 60   
 61       
 62 -    def getPrimaryId(self, fromNode=None): 
 63          """Return the primary path in the form /zport/dmd/xyz""" 
 64          pid = "/".join(self.getPrimaryPath(fromNode)) 
 65          if fromNode: pid = "/" + pid 
 66          return pid 
 67   
 68   
 69 -    def getPrimaryUrlPath(self, full=False): 
 70          """Return the primary path as an absolute url""" 
 71          objaq = self.primaryAq() 
 72          if full: return objaq.absolute_url() 
 73          return objaq.absolute_url_path() 
 74           
 75   
 76   
 77 -    def primaryAq(self): 
 78          """Return self with is acquisition path set to primary path""" 
 79          app = self.getPhysicalRoot() 
 80          return getObjByPath(app, self.getPrimaryPath()) 
 81          
 82   
 83 -    def getPrimaryParent(self): 
 84          """Return our parent object by our primary path""" 
 85          return self.__primary_parent__.primaryAq() 
 86   
 87   
 88 -class PrimaryPathObjectManager( 
 89              RelCopyContainer, 
 90              ObjectManager,  
 91              PrimaryPathManager,  
 92              App.Undo.UndoSupport, 
 93              ): 
 94      """ 
 95      PrimaryPathObjectManager with basic Zope persistent classes. 
 96      """ 
 97      manage_options = (ObjectManager.manage_options + 
 98                        RoleManager.manage_options + 
 99                        ZItem.manage_options) 
100   
101 -    def _setObject(self, id, obj, roles=None, user=None, set_owner=1): 
102          """Track __primary_parent__ when we are set into an object""" 
103          obj.__primary_parent__ = aq_base(self) 
104          return ObjectManager._setObject(self, id, obj, roles, user, set_owner) 
105   
106   
107 -    def _delObject(self, id, dp=1): 
108          """When deleted clear __primary_parent__.""" 
109          obj = self._getOb(id, None) 
110          if obj is None: 
111              # Added this check because we are seeing stack traces in the UI.  
112              # We aren't 100% sure what is causing the object to disappear from  
113              # the ObjectManager. It could be that a different user had already  
114              # deleted it or that a single user had two brower tabs open. Ian saw  
115              # a case were the references on an object were wrong (getPrimaryId 
116              # pointed to the wrong location) but I'm not sure that is what is  
117              # causing this problem. -EAD 
118              log.warning( 
119              "Tried to delete object id '%s' but didn't find it on %s",  
120              id, self.getPrimaryId()) 
121              return 
122          ObjectManager._delObject(self, id, dp) 
123          obj.__primary_parent__ = None 
124   
125   
126 -class PrimaryPathBTreeFolder2(BTreeFolder2): 
127      """ 
128      BTreeFolder2 PrimaryPathObjectManager. 
129      """ 
130 -    def _setObject(self, id, obj, roles=None, user=None, set_owner=1): 
131          """Track __primary_parent__ when we are set into an object""" 
132          obj.__primary_parent__ = aq_base(self) 
133          return ObjectManager._setObject(self, id, obj, roles, user, set_owner) 
134   
135   
136 -    def _delObject(self, id, dp=1): 
137          """When deleted clear __primary_parent__.""" 
138          obj = self._getOb(id) 
139          ObjectManager._delObject(self, id, dp) 
140          obj.__primary_parent__ = None 
141