CODEWITHSUNDEEP
ruby-on-railsrubyjson
Steve D
Steve D

Reputation: 58

JSON parsing in Ruby on Rails

Im trying to get the value for "query"

[
    {
        "query"=> "cat",
        "search_type_names"=> [
            "in Handmade"
        ],
        "search_types"=> [
            "handmade"
        ]
    },
    {
        "query"=> "dream catcher",
        "search_type_names"=> [
            "in Handmade"
        ],
        "search_types"=> [
            "handmade"
        ]
    },
    {
        "query"=> "cat ears",
        "search_type_names"=> [
            "in Handmade"
        ],
        "search_types"=> [
            "handmade"
        ]
    },
    {
        "query"=> "cat collar",
        "search_type_names"=> [
            "in Handmade"
        ],
        "search_types"=> [
            "handmade"
        ]
    },
    {
        "query"=> "cat costume",
        "search_type_names"=> [
            "in Handmade"
        ],
        "search_types"=> [
            "handmade"
        ]
    },
    {
        "query"=> "cat shirt",
        "search_type_names"=> [
            "in Handmade"
        ],
        "search_types"=> [
            "handmade"
        ]
    },
    {
        "query"=> "cat ring",
        "search_type_names"=> [
            "in Handmade"
        ],
        "search_types"=> [
            "handmade"
        ]
    },
    {
        "query"=> "cat toys",
        "search_type_names"=> [
            "in Handmade"
        ],
        "search_types"=> [
            "handmade"
        ]
    },
    {
        "query"=> "cat bed",
        "search_type_names"=> [
            "in Handmade"
        ],
        "search_types"=> [
            "handmade"
        ]
    },
    {
        "query"=> "cheshire cat",
        "search_type_names"=> [
            "in Handmade"
        ],
        "search_types"=> [
            "handmade"
        ]
    },
    {
        "query"=> "cat tree",
        "search_type_names"=> [
            "in Handmade"
        ],
        "search_types"=> [
            "handmade"
        ]
    },
    {
        "link"=> "/search/shops?search_query=cat",
        "query"=> "find shop names containing cat",
        "search_type_names"=> [],
        "search_types"=> []
    }
]

Upvotes: 0

Views: 66

Answers (4)

Rajarshi Das
Rajarshi Das

Reputation: 12320

You can try this.Lets you have a a that the array of JSON

irb(main):151:0> a.collect{|h| h["query"]}
=> ["cat", "dream catcher", "cat ears", "cat collar", "cat costume", "cat shirt", "cat ring", "cat toys", "cat bed", "cheshire cat", "cat tree", "find shop names containing cat"]

Upvotes: 0

K M Rakibul Islam
K M Rakibul Islam

Reputation: 34338

Letting json_array is the array of JSON that you have, you can get the querys this way too:

json_array.each { |a| puts a['query'] }

Upvotes: 0

Alexa Y
Alexa Y

Reputation: 1854

Since that JSON is an array, you'll have to first choose one of the elements from the array, and then use the key for the hash to extract 'query'

json.first['query']
json[5]['query']

Upvotes: 1

Cary Swoveland
Cary Swoveland

Reputation: 110675

It appears you've already converted the JSON string to an array, which I call arr, in which case:

arr.map { |h| h["query"] }
  #=> ["cat", "dream catcher", "cat ears", "cat collar", "cat costume",
  #    "cat shirt", "cat ring", "cat toys", "cat bed", "cheshire cat",
  #    "cat tree", "find shop names containing cat"]

Upvotes: 2

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