CODEWITHSUNDEEP
ruby-on-railsjbuilder
Will
Will

Reputation: 4715

How to use Jbuilder to save output for later

I want to save json into a database field for later use. How should I go about that with Jbuilder?

I want to use an item's show template, passing in the object, @item to save the output for that Item into the database for later use.

I got some output with the following code:

view_paths = Rails::Application::Configuration.new(Rails.root).paths["app/views"]
av_helper = ActionView::Base.new view_paths
include Rails.application.routes.url_helpers
@job = Job.find(239)
output = av_helper.render(file: '/api/jobs/show.jbuilder', locals: {:@job => @job})

How can I render the saved json directly from the controller?

Add this for the action code in the controller

def show
   @job = Job.find(params[:id])    
   render :inline => @job.json_output 
end

Upvotes: 0

Views: 418

Answers (1)

max
max

Reputation: 102046

render_to_string

Raw rendering of a template to a string.

It is similar to render, except that it does not set the response_body and it should be guaranteed to always return a string.

Also if you're doing it from a controller there you can just use the controller to render it:

class JobsController
  def create
    @job = Job.new(item_params) do |job|
      job.my_json_attribute = render_to_string(:show, locals: { :@job => job})
    end
    if @job.save
      redirect_to @job
    else
      render :new
    end
  end
end

But this seems like a pretty overcomplicated and flawed way to handle something that can be done with e-tag caching and a reverse proxy or even low level caching. Especially since you would have to repeat the logic when updating the item.

Upvotes: 0

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