Search through countries is not so effective, as it may be
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StanisLove commented
Hi, there are methods defined in Carmen::Country
class
def self.all
World.instance.subregions
end
def self.query_collection
all
end
and all finders use it in a such way query_collection.find
But what if I knowingly would like to search only through European countries, and the other part of the World is not my business?
I think the ability to set a desired scope of countries may be an option, or to prioritize this list, to have the most needed countries at the top. But the worst case would be still more expensive than could be in the second option.