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Editorial Team
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Asked: 2026-05-16T00:41:01+00:00

Here is my index.html.erb : <%= render :action => ‘new’ %> <% unless @posts.empty?

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Here is my index.html.erb:

<%= render :action => 'new' %>

<% unless @posts.empty? %>
  <%= render @posts %>
<% end %>

The posts are displaying, but nothing in the new page is.

It’s not in the log either:

Processing PostsController#index (for 127.0.0.1 at 2010-07-27 20:54:28) [GET]
Post Load (0.2ms)   SELECT * FROM "posts" 
Rendering template within layouts/application
Rendering posts/index
Rendered posts/_post (8.4ms)

Also, if I replace it with just <%= render :new %>, I get the error:

undefined method `include?' for :new:Symbol

But it should allow me to render the action implicitly with Rails 2.3.8.

I would be grateful if anyone could explain either of these things.

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1 Answer

  1. Editorial Team

    You should only render partials within a view. Since you need the contents in multiple views, you can convert the contents of new.html.erb to a partial (say, _new.html.erb) and then

    <%= render 'new' %>

    From new.html.erb as well as index.html.erb. render :action => ‘actionname’ is meant for rendering another action’s template from within the controller.

    Note that its a common idiom to create a _form.html.erb partial for each model, and use that whenever you need to be able to add or edit a model instance from elsewhere. That would be useful in this case as well. You would then render the form partial from index, new and edit.

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