From: "Damián M. González" <lists@...>
Date: 2012-12-09T20:55:07+09:00
Subject: Re: Searching a hash by value

Ferdous ara wrote in post #1088371:
> Hi
> I am looking at google for this solution
> i got few commands to do that... but i cant figured it out ,
>
> example  my code
>
> result = JSON.parse(response.body)
>
>                 result.each do |key,value|
>
>                         #if k.has_value?'CHECK_NRPE: Socket timeout
> after 10 seconds'
>                                 puts
> "-----------------------------------------------"
>                                 puts    key["host_display_name"]
> #reference properties like this
>                                 puts    key["plugin_output"]  # this is
> the result in object form
>                                 puts    key["display_name"]
>                                 puts    key["last_time_critical"]
>                                 puts
> "------------------------------------------------"
>                         #end
>                 end
>
>
> Basically the output is like :
>
> myserver.home.lan
> CHECK_NRPE: Socket timeout after 10 seconds.
> Memory Load
> 1355046656
>
> What i am after is
>
> if key["plugin_output"]  == "CHECK_NRPE: Socket timeout after 10
> seconds."
> puts    key["host_display_name"] #reference properties like this
> end
>
> but that doe not work
> also if i try
>
>  if result.has_value?'CHECK MAINT: MAINTANANCE MODE ENABLED ON HOST'
> stil it through the error
>
> Can any one please give me some light on this
> Thanks

 Well, let see if I understand, meaby you are confused. Judging by your 
code, the result variable points to a #Hash, so:

#result = {key => value, ..}

 So, if I'm in the right way then I realize that each key is also a 
#Hash, because you say:

#key["host_display_name"]

 So the result variable appear to be something like this:

#result = {#Hash => value, ..}

 Meaby the values are the Hash and the key is another object, like a 
symbol. I didn't played with JSON, don't know how it works, but if my 
aproach is right instead of do #key["host_display_name"] you have to do:

#value["host_display_name"]

 If the result variable is something like this:

#result = {:some_key => {"host_display_name" => #Object}, ..}

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