Ruby on Rails: `implicit conversion of String to Integer` to get json field

Question

I have a json file like this from xml-rpc server:

{ "total_asr": -1, "report": [ { "logout_time_formatted": "2013-12-07 15:19", "caller_id": "", "user_id": x, "bytes_in": "964826", "login_time_formatted": "2013-12-07 13:46", "details": [ [ "terminate_cause", "Lost-Carrier" ], [ "service", "x" ], [ "nas_port_type", "Ethernet" ], [ "mac", "x:x:x:C6:63:DE" ], [ "assigned_ip", "xx65.139" ], [ "port", "x" ] ], "ras_description": "x", "service_type": "Internet", "username": "x", "successful": "t", "bytes_out": "423928", "before_credit": 10029.29841, "connection_log_id": 49038, "billed_duration": 5562, "credit_used": 11.25756, "retry_count": 1, "parent_isp_credit_used": 0.0, "duration_seconds": 5563.0, "remote_ip": "5.200.65.139" }, . . . ], "total_rows": "85", "total_voip_provider_credit_used": -1, "total_credit": -1, "total_duration": -1, "total_out_bytes": -1.0, "total_billed_duration": -1, "total_in_bytes": -1.0, "total_acd": -1 } 

I want to get the following field: result = {}

  rpc = IbsXmlRpc.new res = rpc.getConnectionLogs("200") result = res["report"].map{|key| { "duration" => (key["duration_seconds"].to_i/60).to_s, "bytes_in" => (key["bytes_in"].to_i/1024).to_s, "bytes_out" => (key["bytes_out"].to_i/1024).to_s, } } 

Everything works fine so far, but when I am going to get the latest json fields:

  result["total_duration"] = res["total_duration"].to_s result["total_out_bytes"] = res["total_out_bytes"].to_s result["total_in_bytes"] = res["total_in_bytes"].to_s 

I get this error: no implicit conversion of String into Integer I really don't know what is going on, and checked everything I knew. Any idea why this is happening?

Answer 1

result not a hash; This is an array of hashes. You cannot access the Array index using String. If you want to keep your totals in the same structure as your “report”, you will need to put them all in a new hash.

 rpc = IbsXmlRpc.new res = rpc.getConnectionLogs("200") reports = res["report"].map{|key| { "duration" => (key["duration_seconds"].to_i/60).to_s, "bytes_in" => (key["bytes_in"].to_i/1024).to_s, "bytes_out" => (key["bytes_out"].to_i/1024).to_s, } } result = { :reports => reports, :total_duration => res["total_duration"], :total_out_bytes => res["total_out_bytes"], :total_in_bytes => res["total_in_bytes"], }