[IMP] http: extract save/get session actions as methods on session object

bzr revid: chs@openerp.com-20140206115209-naleunin0mleghda

openerp/http.py

@@ -831,6 +831,40 @@ class OpenERPSession(werkzeug.contrib.sessions.Session):
 
         return Model(self, model)
 
+    def save_action(self, action):
+        """
+        This method store an action object in the session and returns an integer
+        identifying that action. The method get_action() can be used to get
+        back the action.
+
+        :param the_action: The action to save in the session.
+        :type the_action: anything
+        :return: A key identifying the saved action.
+        :rtype: integer
+        """
+        saved_actions = self.setdefault('saved_actions', {"next": 1, "actions": {}})
+        # we don't allow more than 10 stored actions
+        if len(saved_actions["actions"]) >= 10:
+            del saved_actions["actions"][min(saved_actions["actions"])]
+        key = saved_actions["next"]
+        saved_actions["actions"][key] = action
+        saved_actions["next"] = key + 1
+        self.modified = True
+        return key
+
+    def get_action(self, key):
+        """
+        Gets back a previously saved action. This method can return None if the action
+        was saved since too much time (this case should be handled in a smart way).
+
+        :param key: The key given by save_action()
+        :type key: integer
+        :return: The saved action or None.
+        :rtype: anything
+        """
+        saved_actions = self.get('saved_actions', {})
+        return saved_actions.get("actions", {}).get(key)
+
 def session_gc(session_store):
     if random.random() < 0.001:
         # we keep session one week