How to extract all attributes with Rails Jbuilder?

ruby-on-rails jbuilder
chikaram picture chikaram · Apr 12, 2014 · Viewed 12.9k times · Source

It's a pain to write codes like this all the time in jbuilder.json template:

json.extract! notification, :id, :user_id, :notice_type, :message, :resource_type, :resource_id, :unread, :created_at, :updated_at

So I'd like to code like this;

json.extract_all! notification

I've found I can do it like the following codes, but they are still a bit lengthy to me.

notification.attributes.each do |key, value|
  json.set!(key, value)
end

Is there any better way?

Answer

zato picture zato · May 2, 2014

Maybe you can use json.merge!.

json.merge! notification.attributes

https://github.com/rails/jbuilder/blob/master/lib/jbuilder.rb#L277

Related questions

Rails: Render Json Status Problems

When I render json: { error: "No such user; check the submitted email address", status: 400 } and then do my tests and check for response.code I get 200 rather than 400 I'm sure the answer to this absurdly simple, but I've been looking …

Read More
rails jbuilder - just an array of strings

i have a controller that returns an array of ActiveRecord objects and a jbuilder view to generate the json (all standard stuff). works great if i want for example an array of hashes. so for example i have: json.array!(@…

Read More
Generate a nested JSON array in JBuilder

I have this models in ruby on rails Branch model: has_many :menus class Branch < ActiveRecord::Base belongs_to :place belongs_to :city has_many :menus , dependent: :destroy belongs_to :type_place end Menu model: has_many :products class …

Read More