[IMP] do not delete res.log items after reading them

Just mark them as read

bzr revid: xmo@openerp.com-20101012152602-0adn5ed1ztgch2xa

bin/addons/base/res/res_log.py

@@ -33,20 +33,26 @@ class res_log(osv.osv_memory):
         'res_id': fields.integer('Object ID'),
         'secondary': fields.boolean('Secondary Log', help='Do not display this log if it belongs to the same object the user is working on'),
         'create_date': fields.datetime('Created Date', readonly=True),
+        'read': field.boolean('Read status', help="If this log item has been read, get() should not send it to the client")
     }
     _defaults = {
         'user_id': lambda self,cr,uid,ctx: uid,
         'create_date': time.strftime('%Y-%m-%d %H:%M:%S'),
-        'context': lambda *args: "{}"
+        'context': lambda *args: "{}",
+        'read': False
     }
     _order='create_date desc'
 
     # TODO: do not return secondary log if same object than in the model (but unlink it)
-    def get(self, cr, uid, context={}):
-        ids = self.search(cr, uid, [('user_id','=',uid)], context=context)
-        result = self.read(cr, uid, ids, ['name','res_model','res_id'], context=context)
-        self.unlink(cr, uid, ids, context=context)
-        return result
+    def get(self, cr, uid, context=None):
+        unread_log_ids = self.search(cr, uid, [('user_id','=',uid),
+                                               ('read', '=', False)],
+                                     context=context)
+        unread_logs = self.read(cr, uid, unread_log_ids,
+                                ['name','res_model','res_id'],
+                                context=context)
+        self.write(cr, uid, ids, {'read': True}, context=context)
+        return unread_logs
 
     def search(self, cr, uid, args, offset=0, limit=None, order=None, context=None, count=False):
         res = []