如何訪問哈希內的數組？

Question

我在數組中有一個哈希：

values = {}
values.merge!(name => {
  "requested_amount" => @specific_last_pending_quota.requested_amount,
  "granted" => @specific_last_pending_quota.granted,
  "pending_final" => pending_final
})
@o_requests[request.receiving_organization][request.program_date][:data] = values

我將其發送到視圖，然后在收到時發送：

= quota[:data].inspect
# {"theme"=>{"requested_amount"=>2, "granted"=>false, "pending_final"=>0}}

我想這樣獲取對象：

= quota[:data]["theme"].inspect

但是我得到這個錯誤

can't convert String into Integer

Answer 1

嘗試將其轉換為適當的哈希，我猜它應該可以正常工作。

values = {}
 values.merge!(name => {:requested_amount => @specific_last_pending_quota.requested_amount, :granted => @specific_last_pending_quota.granted, :pending_final => pending_final})

@o_requests[request.receiving_organization][request.program_date][:data] = values

Answer 2

我猜為quota[:data]可能返回哈希數組

嘗試：

= quota[:data][0]["theme"]

在這里，我嘗試案例以得到相同的錯誤並檢查：

 > h[:data]
 #=> [{"theme"=>{"requested_amount"=>2, "granted"=>false, "pending_final"=>0}}] 
 > h[:data]["theme"]
TypeError: no implicit conversion of String into Integer
    from (irb):10:in `[]'
    from (irb):10
    from /home/ggami/.rvm/rubies/ruby-2.2.1/bin/irb:11:in `<main>'
 > h[:data][0]["theme"]
 #=> {"requested_amount"=>2, "granted"=>false, "pending_final"=>0}