fix InternetProtocolAddress portal_type for comptability

with dynamic property_sheets

product/ERP5/Document/InternetProtocolAddress.py

@@ -72,8 +72,8 @@ class InternetProtocolAddress(Coordinate):
     if result is None:
       if self.isDetailed():
         tmp_list = []
-        for prop in PropertySheet.InternetProtocolAddress._properties:
-          property_id = prop['id']
+        for prop in self.getPortalObject().portal_property_sheets.InternetProtocolAddress.contentValues():
+          property_id = prop.getTitle()
           getter_name = 'get%s' % convertToUpperCase(property_id)
           getter_method = getattr(self, getter_name)
           value = getter_method('')
@@ -115,8 +115,8 @@ network_interface:eth0"""
 
   security.declareProtected(Permissions.AccessContentsInformation, 'isDetailed')
   def isDetailed(self):
-    for prop in PropertySheet.InternetProtocolAddress._properties:
-      property_id = prop['id']
+    for prop in self.getPortalObject().portal_property_sheets.InternetProtocolAddress.contentValues():
+      property_id = prop.getTitle()
       tester_name = 'has%s' % convertToUpperCase(property_id)
       tester_method = getattr(self, tester_name)
       value = tester_method()