Passing Data from the Controller to the View

Here's a NovelController class, to be put into app/ controllers/novel_controller.rb.

class NovelController < ApplicationController      def index        @title = 'Shattered View: A Novel on Rails'      endend

Since this is the Novel controller and the index action, the corresponding view is in app/views/novel/index.html.erb

<h1><%= @title %></h1>

Output:

Shattered View: A Novel on Rails

The view is interpreted after NovelController#index is run. Here's what the view can and can't access:

• It can access the instance variables @title, because they've been defined on the NovelController object by the time NovelController#index finishes running.
• It can call instance methods of the instance variables @title.

I think it should be like

render 'books/show', :locals => {:resource => 'Some text'}

It works for me

First I am wondering why would you need the template:. Are you on Rails 2.x? If not, then the :template option is no longer required. You should be able to get along fine with just

render "books/show"

Second do you need to specify the template? What is the controller you want to render from? If that's BooksController, then you don't need the template path either, which makes the line being just

render

That's without the variables yet. Now, I just checked, and a simple:

render locals: { resource: "Some text" }

as well as:

render 'books/show', locals: { resource: "Some text" }

works for me just fine. Maybe earlier Rails versions treated 'resource' as some kind of a keyword? Don't know, but the above Worksforme™ in both forms.