CODEWITHSUNDEEP
ruby-on-railsruby
gjenskapelse
gjenskapelse

Reputation: 69

rails formatting a custom json output

How do would I format my model so that it will output a json document with an id and name field?

Because my model has custom field names and I am using tokeninput and it requires me to output it to id and name.

any ideas?

Upvotes: 0

Views: 269

Answers (3)

nishu
nishu

Reputation: 1493

You might want to pass a only option to to_json

:only => [:id, :name]

For example, if you want to get id and name of User

User.all.to_json :only => [:id, :name]

If the model does not contain Id and Name as described by OP. Then you use custom select at the time of querying the db.

User.select('filed1 as id, field2 as name').all.to_json

Upvotes: 1

Eki Eqbal
Eki Eqbal

Reputation: 6057

You have so many options here, you can use jbuilder, rabl. But I think the easiest one is to use Active Model Serializers.

Let's say you have a model name User.

First install the bundle, then: 

rails g serializer user

Then at app/serializers/user_serializer.rb:

class ArticleSerializer < ActiveModel::Serializer
  attributes :id, :name 
end

Upvotes: 1

Jason Kim
Jason Kim

Reputation: 19061

Maybe in your controller 

require 'json'

# ...

def show_json
  user_obj_to_json = User.first.to_json
  render user_obj_to_json
end

Upvotes: 0

Related Questions