Deleted the get_relation call in leapidatasource's update_rank method

DataSource/MySQL/leapidatasource.py

@@ -411,12 +411,10 @@ class LeDataSourceSQL(DummyDatasource):
     # @return True if success, False if failure
     # TODO Conserver cette méthode dans le datasource du fait des requêtes SQL. Elle est appelée par le set_rank de LeRelation
     def update_rank(self, le_relation, rank):
-        ret = self.get_relation(le_relation.id_relation, no_attr=True)
-        if not ret:
-            raise leapi.leapi.LeObjectQueryError("No relation with id_relation = %d" % le_relation.id_relation)
-        lesup = ret['lesup']
-        lesub = ret['lesub']
-        current_rank = ret['rank']
+
+        lesup = le_relation.lesup
+        lesub = le_relation.lesub
+        current_rank = le_relation.rank
 
         relations = self.get_related(lesup, lesub.__class__, get_sub=True)
 

leapi/lerelation.py

@@ -133,7 +133,7 @@ class _LeRelation(lecrud._LeCrud):
     ## @returns The maximum assignable rank for this relation
     # @todo implementation
     def get_max_rank(self):
-        pass
+        return self._datasource.select(self.__class__, ['rank'])
 
 ## @brief Abstract class to handle hierarchy relations
 class _LeHierarch(_LeRelation):

leapi/test/test_lerelation.py

@@ -77,7 +77,7 @@ class LeRelationTestCase(TestCase):
         dsmock.assert_called_once_with(LeHierarch, [('lesup', '=', Numero(42)), ('nature','=','"parent"')])
         dsmock.reset_mock()
 
-    
+
 class LeHierarch(LeRelationTestCase):
     
     @patch('DataSource.dummy.leapidatasource.DummyDatasource.select')