--- ECHO_content/ECHO_collection.py	2012/01/17 18:39:07	1.310.2.4
+++ ECHO_content/ECHO_collection.py	2012/01/18 16:57:00	1.310.2.5
@@ -36,6 +36,7 @@ from Globals import Persistent, package_
 from Acquisition import Implicit
 from Products.ZCatalog.CatalogPathAwareness import CatalogAware
 from Products.ZCTextIndex.ZCTextIndex import manage_addLexicon
+from Acquisition import aq_parent
 try:
 	from Products.MetaDataProvider.MetaDataClient import MetaDataClient
 except:
@@ -693,6 +694,8 @@ class ECHO_collection(CatalogAware, Fold
     meta_type='ECHO_collection'
     default_catalog='resourceCatalog'
     
+    rootMetaTypes = ['ECHO_root', 'ECHO_main', 'ECHO_nav']
+    
 #    viewClassificationList=viewClassificationListMaster
     displayTypes=displayTypes
 
@@ -705,12 +708,11 @@ class ECHO_collection(CatalogAware, Fold
             return crumbs[0][2].getId()
     
         p = self
-      
         sec = None
         # descend parents to the root (and remember the last id)
-        while p is not None and p.meta_type != 'ECHO_root' and p.meta_type!='ECHO_main' and p.meta_type!='ECHO_nav':
+        while p is not None and p.meta_type not in self.rootMetaTypes:
             sec = p.getId()
-            p = p.aq_parent
+            p = aq_parent(p.context)
      
         return sec
     
@@ -724,13 +726,32 @@ class ECHO_collection(CatalogAware, Fold
         sec = None
         subsec = None
         # descend parents to the root (and remember the last id)
-        while p is not None and p.meta_type != 'ECHO_root' and p.meta_type!='ECHO_main' and p.meta_type!='ECHO_nav':
+        while p is not None and p.meta_type not in self.rootMetaTypes:
             subsec = sec
             sec = p.getId()
-            p = p.aq_parent
+            p = aq_parent(p.context)
           
         return subsec
 
+    def getHierCrumbs(self):
+        """returns a list of hierarchical breadcrumbs from self to the ECHO_root"""
+        # crumb for this object
+        crumb = {'obj': self,
+                 'url': self.absolute_url(),
+                 'label': self.getLabel()}
+        crumbs = [crumb]
+        # call the parent's method recursively
+        parent = aq_parent(self)
+        if hasattr(parent, 'getHierCrumbs'):
+            if self.title:
+                return parent.getHierCrumbs() + crumbs
+            else:
+                # if there's no title, skip this level
+                return parent.getHierCrumbs()
+        
+        return crumbs
+        
+
     
     def exportImportObjects_html(self,RESPONSE):
         """ImportObject"""