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Ruby Build a Simple Ruby on Rails Application Creating an Authentication System Generating the User Model

David Langley
David Langley
10,965 Points

Localhost:3000 wont load "NoMethodError in Statuses#index"

When trying to load my localhost:3000 i get an error that states

undefined method `each' for nil:NilClass

the line it references in my code is;

<% @Statuses.each do |status| %>

This is preventing the localhost page from loading.

any ideas on how i can fix this problem ? hope you can help.

4 Answers

do you have

@statuses = Status.all 

In your statuses_controller?

David Langley
David Langley
10,965 Points


Status controller looks to be intact, it reads; # GET /statuses # GET /statuses.json def index @statuses = Status.all end

Nick Fuller , I showed a typo there i did have it at lower case (sorry!)

Nick Fuller
Nick Fuller
9,027 Points

Your instance variable is capitalized.

@Statuses.each do |status|

I think you want

@statuses.each do |status|
David Langley
David Langley
10,965 Points

errrr.... now I am having trouble even getting the rails server started. error is saying;

/Users/chickenguts/.rvm/gems/ruby-1.9.3-p484/gems/activemodel-4.0.3/lib/active_model/deprecated_mass_assignment_security.rb:14:in attr_accessible':attr_accessibleis extracted out of Rails into a gem. Please use new recommended protection model for params(strong_parameters) or addprotected_attributes` to your Gemfile to use old one. (RuntimeError)

any ideas guys ?

That specific error sounds like it's asking you to use strong params. A big difference between Rails 4 and rails 3.2 (which is what I believe they use in the video) is Rails 4 requires you declare strong parameters as opposed to using attr_accessible like they do in the video.

To declare a strong param, you need to do it at the bottom of your statuses controller as a private method. Ex:

def status_params
      params.require(:status).permit(:user_id, :content)