ruby import json data - arrays

Question

How can I use parsed data from the data.rb file in the main.rb file ?
I'm trying to count the number of times the year "2017" occurs, and how many times "2014" occurs.
I want to return both counts to the method count_years which is in main.rb. How is this properly done?
main.rb
def count_years
File.open('data.rb'))[:phone_data]
if :phone_data."Year" == 2017
year_2017.count #new variable year_2017
end
if :phone_data."Year" == 2014
year_2014.count #new variable year_2014
end
end
data.rb
let(:phone_data) {
JSON.parse('[
{
"Phone": "iPhone 6",
"Year": "2014"
},
{
"Phone": "iPhone 7",
"Year": "2016"
},
{
"Car": "iPhone 8",
"Year": "2017"
},
{
"Car": "Galaxy S8",
"Year": "2017"
}
]')
}
main.rb

Answer 1

The data.rb file is set up to be used by RSpec. Even in that context, it's a little awkward. I would move the JSON data to JSON file and then you can access it from both places. There are other options as well but I would need to know more about your application and how and where you're using this data.
data.json:
[
{
"Phone": "iPhone 6",
"Year": "2014"
},
{
"Phone": "iPhone 7",
"Year": "2016"
},
{
"Car": "iPhone 8",
"Year": "2017"
},
{
"Car": "Galaxy S8",
"Year": "2017"
}
]
data.rb:
require 'json'
let(:phone_data) {
JSON.parse(File.read('data.json'))
}
main.rb:
require 'json'
def count_years
JSON.parse(File.read('data.json'))
.group_by { |h| h['Year'] }
.map { |year, entries| [year, entries.size] }
.to_h
end
The method will return a hash where the keys are the years and the values are the counts:
count_years # => {"2014"=>1, "2016"=>1, "2017"=>2}