CODEWITHSUNDEEP
ruby-on-railsrubychartkick
user43731
user43731

Reputation: 173

Displaying MongoDB results in chartkick using ruby on rails

I have this output from a query in MongoDB using Ruby :

irb(main):087:0>   data = col.find({}, :fields => ["result", "time"])
=> <Mongo::Cursor:0x14768b8 namespace='spark.light' @selector={} @cursor_id=>

irb(main):090:0> data.first
=> {"_id"=>BSON::ObjectId('537d961197c20960ad000001'), "result"=>2177, "time"=>2014-05-22 06:15:45 UTC}

Now I want to give this data to chartkick running on Ruby on Rails to draw a linechart .The input shall looks like this :

"2014-05-22 06:15:45 UTC" => "2177"

Is there any clean way to do that ?

Upvotes: 1

Views: 367

Answers (2)

Arup Rakshit
Arup Rakshit

Reputation: 118271

Use Hash#values_at with Hash::[] method :

Hash[data.first.values_at('time', 'result')]

Upvotes: 0

Gosha A
Gosha A

Reputation: 4570

This would transform records into a hash of time => result:

Hash[data.map do |item|
  [item['time'], item['result']]
end]

# => { 2014-05-22 06:15:45 UTC => 2177, 2014-05-22 06:20:00 UTC => 1000 }

Upvotes: 2

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