[IMP] auth_signup: use contextmanager to manage the cursor

bzr revid: chs@openerp.com-20120813150605-964tpaedgremjnoa

addons/auth_signup/controllers/main.py

@@ -2,7 +2,7 @@ import logging
 
 import werkzeug.urls
 
-import openerp.modules.registry
+from openerp.modules.registry import RegistryManager
 from openerp.addons.web.controllers.main import login_and_redirect
 import openerp.addons.web.common.http as openerpweb
 
@@ -13,10 +13,9 @@ class OpenIDController(openerpweb.Controller):
 
     @openerpweb.httprequest
     def signup(self, req, dbname, name, login, password):
-        registry = openerp.modules.registry.RegistryManager.get(dbname)
-        cr = registry.db.cursor()
         url = '/'
-        try:
+        registry = RegistryManager.get(dbname)
+        with registry.cursor() as cr:
             try:
                 Users = registry.get('res.users')
                 credentials = Users.auth_signup(cr, 1, name, login, password)
@@ -30,8 +29,6 @@ class OpenIDController(openerpweb.Controller):
                 # signup error
                 _logger.exception('error when signup')
                 url = "/#action=auth_signup&error=UE"   # Unexcpected Error
-        finally:
-            cr.close()
         return werkzeug.utils.redirect(url)
 
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