Ruby on Rails – How do I access the HTTP status code in my ERB view?

In Ruby on Rails, accessing the HTTP status code in an ERB view can be achieved through the use of the `response` object.

Accessing the HTTP Status Code

In your ERB view, you can access the HTTP status code using the following code:

<% if response.response_code == 404 %>
  
<% elsif response.response_code == 500 %>
  
<% else %>
  
<% end %>

Alternative Approach

You can also use the `request` object to access the HTTP status code:

<% if request.env['rack.status'] == 404 %>
  
<% elsif request.env['rack.status'] == 500 %>
  
<% else %>
  
<% end %>

Using a Helper Method

Alternatively, you can create a helper method in your application helper to encapsulate the logic:

module ApplicationHelper
  def http_status_code
    response.response_code
  end
end

Then, in your ERB view, you can call the helper method:

<% if http_status_code == 404 %>
  
<% elsif http_status_code == 500 %>
  
<% else %>
  
<% end %>

Remember to adjust the code according to your specific requirements and error handling needs.

Frequently Asked Question

Ruby on Rails is an amazing web framework, but sometimes we need a little help figuring out how things work. Here are some answers to common questions about accessing the HTTP status code in an ERB view: