[web2py] how to change keys in dict to response?

[LightOfMooN]

i have some tables to rate files by week, month, year etc..

i have some function like this:
def index():
    if request.args(0) == 'all':
        rolics =
db(db.rolic.id==db.rating_all.rolic_id).select(db.rolic.all,
db.rating_all.rating, orderby=~db.rating_all.rating)
    elif request.args(0) == 'year':
        rolics =
db(db.rolic.id==db.rating_year.rolic_id).select(db.rolic.all,
db.rating_year.rating, orderby=~db.rating_year.rating)
    return response.render('default/main.html', dict(rolics=rolics))

so the question is:
is there any way to rename the keys of dict, because template doesn't
know about type of query:

something like:
    rolics =
db(db.rolic.id==db.rating_all.rolic_id).select(db.rolic.all,
db.rating_all.rating AS 'rolic.rating', orderby=~db.rating_all.rating)

to use it in template like this:
    {{for rolic in rolics:}}
    {{=rolic.rating}}
    {{pass}}

sry for my bad english