Source Code for Module Products.ZenRelations.ToManyRelationshipBase

  1  ############################################################################## 
  2  #  
  3  # Copyright (C) Zenoss, Inc. 2007, all rights reserved. 
  4  #  
  5  # This content is made available according to terms specified in 
  6  # License.zenoss under the directory where your Zenoss product is installed. 
  7  #  
  8  ############################################################################## 
  9   
 10   
 11  __doc__ = """ToManyRelationshipBase 
 12  Base class for 1:n relations 
 13  """ 
 14  import logging 
 15  log = logging.getLogger('zen.ToManyRelationshipBase') 
 16   
 17  # Base classes for ToManyRelationshipBase 
 18  #from PrimaryPathObjectManager import PrimaryPathObjectManager 
 19  from RelationshipBase import RelationshipBase 
 20  from RelCopySupport import RelCopyContainer 
 21   
 22  from Globals import DTMLFile 
 23  from AccessControl import ClassSecurityInfo 
 24  from Globals import InitializeClass 
 25  from App.Management import Tabs 
 26   
 27  from Products.ZenRelations.Exceptions import zenmarker 
 28  from Products.ZenUtils.Utils import unused 
 29   
 30 -class ToManyRelationshipBase( 
 31              RelCopyContainer, 
 32              RelationshipBase 
 33              ): 
 34      """ 
 35      Abstract base class for all ToMany relationships. 
 36      """ 
 37   
 38      manage_options = ( 
 39          { 
 40          'action': 'manage_main', 
 41          'help': ('OFSP', 'ObjectManager_Contents.stx'), 
 42          'label': 'Contents'}, 
 43      ) 
 44   
 45      security = ClassSecurityInfo() 
 46   
 47      manage_main = DTMLFile('dtml/ToManyRelationshipMain',globals()) 
 48   
 49      _operation = -1 # if a Relationship's are only deleted 
 50   
 51      _count = None 
 52   
 53 -    def setCount(self): 
 54          self._count = len(self._objects) 
 55          # persist the changes if we are on the object graph 
 56          try: 
 57              parent = self.__primary_parent__ 
 58              parent._p_changed = True 
 59          except AttributeError: 
 60              log.debug("Unable to persist the count of %s" % self.id) 
 61   
 62 -    def countObjects(self): 
 63          """Return the number of objects in this relationship""" 
 64          if self._count is None: 
 65              self.setCount() 
 66          return self._count 
 67   
 68   
 69 -    def findObjectsById(self, partid): 
 70          """Return a list of objects by running find on their id""" 
 71          objects = [] 
 72          for id, obj in self.objectItemsAll(): 
 73              if id.find(partid) > -1: 
 74                  objects.append(obj) 
 75          return objects 
 76   
 77   
 78 -    def _delObject(self, id, dp=1, suppress_events=False): 
 79          """Emulate ObjectManager deletetion.""" 
 80          unused(dp) 
 81          obj = self._getOb(id, False) 
 82          if not obj: 
 83              log.warning( 
 84              "Tried to delete object id '%s' but didn't find it on %s", 
 85              id, self.getPrimaryId()) 
 86              return 
 87          self.removeRelation(obj, suppress_events) 
 88          obj.__primary_parent__ = None 
 89   
 90   
 91 -    def _setOb(self, id, obj): 
 92          """don't use attributes in relations""" 
 93          unused(id) 
 94          unused(obj) 
 95          if True: 
 96              raise NotImplementedError 
 97   
 98   
 99 -    def _delOb(self, id): 
100          """don't use attributes in relations""" 
101          if True: 
102              raise NotImplementedError 
103   
104   
105 -    def _getOb(self, id, default=zenmarker): 
106          """ 
107          Return object by id if it exists on this relationship. 
108          If it doesn't exist return default or if default is not set 
109          raise AttributeError 
110          """ 
111          unused(default) 
112          if True: 
113              raise NotImplementedError 
114   
115   
116 -    def manage_workspace(self, REQUEST): 
117          """if this has been called on us return our workspace 
118          if not redirect to the workspace of a related object""" 
119          id = REQUEST['URL'].split('/')[-2] 
120          if id == self.id: 
121              Tabs.manage_workspace(self, REQUEST) 
122          else: 
123              obj = self._getOb(self, id) 
124              from zExceptions import Redirect 
125              raise Redirect( (obj.getPrimaryUrlPath()+'/manage_workspace') ) 
126   
127   
128  InitializeClass(ToManyRelationshipBase) 
129