Render text from controller to view

Question

I have a controller from which I want to render text to /views/test/index.html.erb:

class TestController < ApplicationController
  def index
    if testStuff() do
      <render text to view>
    end
  end

  private 
  testStuff()
    return true
  end
end

What is the easiest way to do this? Thanks for an answer!

Answer 1

After executing the method index of the controller rails will try to load a view with name index.html.erb (or any other template you use). You may declare a member in index and that member will be available to the view, ex:

def index
  @text = "Hello world!"
end

Then in your view:

...
<span><%= @text %></span>
...

If your @text variable has html you trust then use @text.html_safe in your view.

Answer 2

try to assign text into a Instance Variable. Like:

class TestController < ApplicationController
  def index
    if testStuff() do
      @text = "Text what you want to render"
    end
  end

at view:

<%= @text %>

Answer 3

You can render as json like this

def index
    if testStuff() do
     @category_lists = CategoryList.get_categories(current_user.id)

     respond_to do |format|
       format.html # index.html.erb
       format.json { render json: @category_lists }
     end
    end
  end

Answer 4

Although it is not good, you can move you test to the view:

class TestController < ApplicationController
  helper_method :is_test?      

  def index
  end

  private 

  def is_test?
    return true
  end
end

And then in view:

<% if is_test? %>
  <span>Some text here</span>
<% end %>