mapValuesJson (
https://github.com/basho/riak_kv/blob/master/priv/mapred_builtins.js#L45)
takes a JSON formatted string and returns it as a JavaScript object. You'll
still need to do something with it to make the magic happen.
mr = Riak::MapReduce.new(client)
mr.add("stocks")
mr.map("function(value, keyData, arg) {
var data = Riak.mapValuesJson(value)[0];
if (data.abr == "GOOG") {
// magic happens here
return [data];
}
}", :keep => true, :language => "JavaScript")
Jeremiah Peschka
Microsoft SQL Server MVP
MCITP: Database Developer, DBA
On Thu, Jan 27, 2011 at 7:37 AM, Joshua Partogi <[email protected]>wrote:
> Hi all,
>
> I am trying to do map reduce with the ruby client as such:
> client = Ripple.client
> Riak::MapReduce.new(client).
> add("stocks").
> map("Riak.mapValuesJson", :arg => "GOOG", :keep => true)
>
> where the JSON document inside the bucket is as such:
>
> { "abr" : "GOOG" }
> { "abr" : "AAPL" }
>
> However instead of returning only one result it is returning all values in
> the bucket.
>
> What am I doing wrong here?
>
> Thanks heaps for the help.
>
> --
> http://twitter.com/jpartogi <http://twitter.com/scrum8>
>
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>
>
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