Add name identifier to an array in a JSON object with Ruby on Rails

Question

I am new to JSON and Ruby on Rails (ruby 1.9.3, rails 3.2.13) and I am trying to add an array name/identifier to a JSON object that contains an already defined array.

My ruby on rails code in a controller is:

metricTypes = MetricType.all
respond_to do |format|
    format.json {render :json => metricTypes}
end

What gets spit out is:

[
    {
        "id":1,
        "name":"foo"
    },
    {
        "id":2,
        "name":"bar"
    }
]

but what I would like to get is:

{
    metrics: [
        {
             "id":1,
             "name":"foo"
        },
        {
              "id":2,
              "name":"bar"
        }
    ]
}

How can I modify the JSON object to include the array name/identifier? I may need to include other arrays other than "metrics" in the same json object in the future, which is why I am trying to do this. Thanks!

Niall Paterson · Accepted Answer · 2015-07-08 12:33:32Z

2

Simply do this:

metric_types = MetricType.all
hash = {:metrics => metrics_types}

then go

format.json {render :json => hash}

1 Comment

Niall Paterson Over a year ago

@sko Good stuff, maybe tick the tick box to let anyone else who viewed this question know that it worked.

Collectives™ on Stack Overflow

Add name identifier to an array in a JSON object with Ruby on Rails

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related