CODEWITHSUNDEEP
ruby-on-railsrubyxmlruby-on-rails-4
WagnerMatosUK
WagnerMatosUK

Reputation: 4429

How to render xml in Rails 4

I'm having trouble rendering xml in a Rails app. I'm following the instructions from here and here's my controller:

...
respond_to do |format|
  format.xml { render :xml => @cases }
end

In my view:

xml.instruct!
xml.cases do
  @cases.each do |c|
    xml.case do
      xml.title c.case_number
    end
  end
end

Yet in my response all I'm getting is this:

<?xml version="1.0" encoding="UTF-8"?>
<nil-classes type="array"/>

I've never worked with xml in Rails before, so I'm bit confused. My controllers structure is like this:

app/controllers
app/controllers/shared
app/controllers/api

The controllers in app/controllers/shared is where I keep most of my logic, so in my app/controllers/api I reference the shared controllers like so: 

class Api::CampaignsController < Shared::CampaignsController
  protect_from_forgery with: :null_session
  before_action :authenticate
end

Currently, my xml template is located here: views/campaigns/method_in_my_controller.xml.builder but I've had similar results (no data in the xml) when I had a view file here views/shared/campaigns/method_in_my_controller.xml.builder

Wha am i missing?

Upvotes: 3

Views: 10492

Answers (1)

Michael Malov
Michael Malov

Reputation: 1887

Remove 

respond_to do |format| 
    format.xml { render :xml => @cases } 
end

And write 

render :xml => @cases

You don't need view xml.builder. Remove it. Try to call @cases.to_xml in console. I know that to_xml works with hashes.

Upvotes: 11

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