--- ECHO_content/ECHO_collection.py	2005/01/31 11:15:50	1.207
+++ ECHO_content/ECHO_collection.py	2005/02/07 18:29:07	1.209
@@ -968,7 +968,7 @@ class ECHO_resource(Folder,Persistent,EC
 
 
     def getMDValue(self,fieldName,empty=None):
-	    if empty:
+	    if not empty:
 		    return self.metaDataHash.get(fieldName,'!!NOT USED HERE in Type: %s'%self.contentType)
 	    
 	    else:
@@ -1065,7 +1065,8 @@ class ECHO_resource(Folder,Persistent,EC
             if ret == "":
                 return None
             else:
-                return ret
+		    
+		    return ret
         except:
             return None
 
@@ -1979,7 +1980,8 @@ class ECHO_collection(Folder, Persistent
         elif hasattr(self,'collection_index_template'):
             ret=self.collection_index_template()    
         elif hasattr(self,'main_index_template'):
-            ret=self.main_index_template()    
+
+            ret=self.main_index_template.__of__(self)(self.main_template)
         else:
 	    pt=zptFile(self, 'zpt/ECHO_main_index_template_standard.zpt')
 	    pt.content_type="text/html"
@@ -2373,6 +2375,8 @@ class ECHO_root(Folder,Persistent,Implic
 
     def checkResource(self,id):
 	    """checks if a resource is in the tree, gives back none or list of resources"""
+	    if not id:
+		id=""
 	    splitted=id.split("/")
 	    id=splitted[len(splitted)-1]
 	    if hasattr(self,"_v_checkResource") and self._v_checkResource.has_key(id): #existiert ein cache und id ist bereits drin?