Суммируя Уплотненный Json

Question

Итак, у нас есть ответ JSON, как: Link to Formatted Sample Json

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То, что я хочу сделать, это сумма всех чисел, содержащихся в ответе.

Ive пробовал перебирать все гнездо, но я был в состоянии сделать только одну секцию. Использование:

@number = 0 
json["C"]["1"]["1"].each do |key, val| 
    val.map do |x| 
     @number+=x 
    end 
end 
#=> 150 

Любые предложения, как я буду делать то же самое для json ["C"] ["1"]?

Answer 1

На основе JSON, вот код, который будет ходить хэш:

hash = JSON.parse(json) 

def sum_hash(h) 
    sum = 0 

    h.each do |k, v| 
    sum += v.is_a?(Hash) ? sum_hash(v) : v.first 
    end 

    sum 
end 

sum_hash(hash) # => 1964 

хэш должен быть гуляла, и каждое значение проверено, так как это нерегулярно. Если значение представляет собой еще один хеш, то sum_hash называет себя этим суб-хешем, который затем начинает движение по получателю.

Для каждого хеш-значения, которое не является хэшем, целое число извлекается из массива с использованием first и добавляется к sum. Когда метод выходит из него, возвращается текущее значение sum, поэтому после того, как хеш был сведен, последовательно добавляются значения sum.

Уменьшение JSON делает это намного проще, чтобы убедиться, что код делает правильную вещь:

json = ' 
{ 
    "C": { 
    "1": { 
     "1": { 
     "A": [1], 
     "B": [1] 
     }, 
     "2": { 
     "A": [1], 
     "B": [1] 
     }, 
     "Review 1": { 
     "A": [1] 
     }, 
     "Review 2": { 
     "A": [1] 
     } 
    } 
    } 
} 
' 

Запуск выше кода, который говорит, что сумма 6.