(RoR) json and nested objects: get attribute in object of object

Question

My goal is an output like this (for each attachment):

url: "/uploads/attachment/picture/15/5ee306c9-e263-466b-b56d-1c7c9d2ae17b.jpg"

What I have at the moment:

attachments_controller.rb

class AttachmentsController < ApplicationController
  before_action :logged_in_user

  def index
    @attachments = current_user.attachments.all
    respond_to do |format|
      format.json do
        render :json => @attachments.each{ |o| o.picture.url }
      end
    end
  end

...

It's for the froala wysiwyg editor: froala.com/wysiwyg-editor/docs/concepts/image-manager — Pascal
– Pascal, Commented Mar 2, 2016 at 18:55

Matt Gibson · Accepted Answer · 2016-03-02 17:56:32Z

1

Try

respond_to do |format|
  format.json do
    render :json => @attachments.map { |o| { url: o.picture.url } }
  end
end

answered Mar 2, 2016 at 17:56

Matt Gibson

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1 Comment

Pascal Over a year ago

This is the output:

[{"url":"/uploads/attachment/picture/7/df3c0c3c-518a-44cc-afab-64dc6acb063c.jpg"},{"url":"/uploads/attachment /picture/12/dd7839ee-94c1-4390-aa5d-a37cccbc3c8a.jpg"} ...

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