One way to get your 2nd option:

in controller:

def country_list():   
   countries = []
   for rec in db(query).select(db.vtx_vertex.name, left=left, distinct=True, 
orderby=db.vtx_vertex.name):
       countries.append(rec.name)
   return dict(suggestions = countries)

in the view (js), call the controller function above using .json 
extension:   https://mysite.com/country_list.json

Depending on your settings, you may need to add '*.json' to 
response.generic_patterns if you have overridden those at any point.

HTH,



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