--- a/src/ldt/ldt/ldt_utils/models.py	Fri Feb 03 11:50:52 2012 +0100
+++ b/src/ldt/ldt/ldt_utils/models.py	Fri Feb 03 12:09:54 2012 +0100
@@ -226,7 +226,7 @@
             if not self.nb_annotation:
                 self.nb_annotation = 0  
             if not self.stat_annotation:
-                self.stat_annotation =  self.__list2str([0] * (settings.DIVISIONS_FOR_STAT_ANNOTATION + len(settings.SYNTAX.keys())))
+                self.__get_empty_stat()
   
 
         super(Content, self).save(*args, **kwargs)
@@ -405,7 +405,7 @@
     def __make_getter(self, i):
         def inner_getter(self):
             if not self.stat_annotation:
-                self.stat_annotation =  self.__list2str([0] * (settings.DIVISIONS_FOR_STAT_ANNOTATION + len(settings.SYNTAX.keys())))
+                self.__get_empty_stat()
             l = self.__str2list(self.stat_annotation)
             return l[Content.__pol_indices[i]]
         return inner_getter
@@ -413,7 +413,7 @@
     def __make_setter(self, i):
         def inner_setter(self, value):
             if not self.stat_annotation:
-                self.stat_annotation =  self.__list2str([0] * (settings.DIVISIONS_FOR_STAT_ANNOTATION + len(settings.SYNTAX.keys())))
+                self.__get_empty_stat()
             l = self.__str2list(self.stat_annotation)
             l[Content.__pol_indices[i]] = value
             self.stat_annotation = self.__list2str(l)
@@ -431,14 +431,21 @@
         
     def __str2list(self, s):
         return [int(x) for x in s.split(',')] 
+    
+    def __get_empty_stat(self):
+        self.stat_annotation =  self.__list2str([0] * (settings.DIVISIONS_FOR_STAT_ANNOTATION + len(settings.SYNTAX.keys())))
         
     def annotation_volume(): #@NoSelf
         
         def fget(self):
+            if not self.stat_annotation:
+                self.__get_empty_stat()
             l = self.__str2list(self.stat_annotation)
             return l[Content.__pol_indices['annotation_volume_begin']:Content.__pol_indices['annotation_volume_end']]
         
         def fset(self, value): # value is a list
+            if not self.stat_annotation:
+                self.__get_empty_stat()
             l = self.__str2list(self.stat_annotation)
             l[Content.__pol_indices['annotation_volume_begin']:Content.__pol_indices['annotation_volume_end']] = value
             self.stat_annotation = self.__list2str(l)

--- a/src/ldt/ldt/ldt_utils/stat.py	Fri Feb 03 11:50:52 2012 +0100
+++ b/src/ldt/ldt/ldt_utils/stat.py	Fri Feb 03 12:09:54 2012 +0100
@@ -52,13 +52,12 @@
             
     return True
     
-
 def add_annotation_to_stat(content, begin, end):
     nb_division = settings.DIVISIONS_FOR_STAT_ANNOTATION
 
     if not content.nb_annotation or not content.stat_annotation:
         content.nb_annotation = 1
-        content.stat_annotation = get_empty_stat_vector()
+        content.stat_annotation = get_empty_stat_field()
     
     size_division = content.duration / nb_division
     limits = [x * size_division for x in range(nb_division+1)]