Source Code for Module ZenRelations.ToManyRelationshipBase

  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   
 15  __doc__ = """ToManyRelationshipBase 
 16  Base class for 1:n relations 
 17  """ 
 18  import logging 
 19  log = logging.getLogger('zen.ToManyRelationshipBase') 
 20   
 21  # Base classes for ToManyRelationshipBase 
 22  #from PrimaryPathObjectManager import PrimaryPathObjectManager 
 23  from RelationshipBase import RelationshipBase 
 24  from RelCopySupport import RelCopyContainer 
 25   
 26  from Globals import DTMLFile 
 27  from AccessControl import ClassSecurityInfo 
 28  from Globals import InitializeClass 
 29  from App.Management import Tabs 
 30   
 31  from Products.ZenRelations.Exceptions import zenmarker 
 32  from Products.ZenUtils.Utils import unused 
 33   
 34 -class ToManyRelationshipBase( 
 35              RelCopyContainer,  
 36              RelationshipBase 
 37              ): 
 38      """ 
 39      Abstract base class for all ToMany relationships. 
 40      """ 
 41   
 42      manage_options = ( 
 43          { 
 44          'action': 'manage_main',  
 45          'help': ('OFSP', 'ObjectManager_Contents.stx'),  
 46          'label': 'Contents'}, 
 47      )   
 48       
 49      security = ClassSecurityInfo() 
 50   
 51      manage_main = DTMLFile('dtml/ToManyRelationshipMain',globals()) 
 52   
 53      _operation = -1 # if a Relationship's are only deleted 
 54   
 55   
 56 -    def countObjects(self): 
 57          """Return the number of objects in this relationship""" 
 58          return len(self._objects) 
 59   
 60      
 61 -    def findObjectsById(self, partid): 
 62          """Return a list of objects by running find on their id""" 
 63          objects = [] 
 64          for id, obj in self.objectItemsAll(): 
 65              if id.find(partid) > -1: 
 66                  objects.append(obj) 
 67          return objects  
 68   
 69       
 70 -    def _delObject(self, id, dp=1): 
 71          """Emulate ObjectManager deletetion.""" 
 72          unused(dp) 
 73          obj = self._getOb(id, False) 
 74          if not obj: 
 75              log.warning( 
 76              "Tried to delete object id '%s' but didn't find it on %s",  
 77              id, self.getPrimaryId()) 
 78              return 
 79          self.removeRelation(obj) 
 80          obj.__primary_parent__ = None 
 81   
 82       
 83 -    def _setOb(self, id, obj):  
 84          """don't use attributes in relations""" 
 85          unused(id) 
 86          unused(obj) 
 87          if True: 
 88              raise NotImplementedError 
 89           
 90     
 91 -    def _delOb(self, id): 
 92          """don't use attributes in relations""" 
 93          if True: 
 94              raise NotImplementedError 
 95   
 96   
 97 -    def _getOb(self, id, default=zenmarker): 
 98          """ 
 99          Return object by id if it exists on this relationship. 
100          If it doesn't exist return default or if default is not set  
101          raise AttributeError 
102          """ 
103          unused(default) 
104          if True: 
105              raise NotImplementedError 
106   
107   
108 -    def manage_workspace(self, REQUEST): 
109          """if this has been called on us return our workspace 
110          if not redirect to the workspace of a related object""" 
111          id = REQUEST['URL'].split('/')[-2] 
112          if id == self.id: 
113              Tabs.manage_workspace(self, REQUEST)  
114          else:     
115              obj = self._getOb(self, id) 
116              from zExceptions import Redirect 
117              raise Redirect( (obj.getPrimaryUrlPath()+'/manage_workspace') ) 
118                                           
119   
120  InitializeClass(ToManyRelationshipBase) 
121