handle solr facet result

Question

I have a diagram like:

and i have

"city_id":[
        "1",131,
        "2",96,
        "3",11,
        "4",10,
        "7",8,
        "6",6,
        "15",5,
        "10",4,
        "34",4,
        "36",3,
        "59",3,
        "71",1]},

In quotes is city_id and on the right is the job count of that city

I want to process them into a hash like this

{:region_1=> 
{["city_name", "slug"]=>jobs count,
["city_name", "slug"]=>jobs count,
["city_name", "slug"]=>jobs count},
:region_2=> 
{["city_name", "slug"]=>jobs count,
["city_name", "slug"]=>jobs count,
["city_name", "slug"]=>jobs count},
...
}

Answer 1

This isn't the cleanest way to do, but it could work:

final_hash = {}
Hash[*city_id.flatten(1)].each do |city_id, job_count|
  city = City.find(city_id)
  region = city.region
  slug = city.slug
  city_name = city.name
  final_hash[region] = Hash.new unless final_hash.key?(region)
  final_hash[region][[city_name, slug]] = job_count
end

This makes your strange arraylist to a hash:

Hash[*city_id.flatten(1)]