如何访问哈希内的数组？

Question

I have a hash within an array:

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

I send it to the view and then when I get it so:

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

I want to fetch the object like this:

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

But I got this error

can't convert String into Integer

Answer 1

Try convert it to proper hash I guess it should work fine.

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

I guess quota[:data] may return array of hash

Try:

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

Here I tried case to get same error and check:

 > 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}