I'm writing a controller for V7 and I have this problem. I want to get the database name and the cursor but I can't because there is no a "request" parameter like in V8 to get the cr value and I can't obtain database name from anywhere too. As you can see, I hardcoded the database name just for testing but I have to get it programatically or get the cursor value.  How can I do that? Following, the actual code:

class firmaController(http.Controller): 
 _cp_path = '/x_firma' 

 @http.httprequest 
 def index(self, request, **post): 

     db_name = 'GRP-MRREE' 
     cr = openerp.pooler.get_db(db_name).cursor() 
     bd_obj = openerp.pooler.get_pool(db_name) 
     firma_obj = bd_obj.get('x_firma') 
     id_transaccion = post['id_transaction']
     documento = firma_obj.invocar_ws_obtenerDocumentosFirmados(cr, SUPERUSER_ID, id_transaccion)
     cr.commit() 
     cr.close() 
     return werkzeug.utils.redirect('/') 
firmaController()