Adding array to non-rails model gives TypeError - no implicit conversion of String into Integer

Question

I have a model (OrderFilter) not tied to a database table which I use to pass filter parameters to the view. The model and view are considerably more complicated than below but I've stripped it down to the bare essentials.

class OrderFilter  
  attr_accessor :role, :draft, :submitted, :approved, :processed, :errors  
  def initialize(user_id)
    # @errors = []
  end
end

# Controller
def index
  @order_filter = OrderFilter.new(session[:user_id])
  respond_to do |format|
    format.html
  end
end

# View:    
  <%= select(:order_filter, :role, ['a','b','c'] )%>

All worked as expected until I added an array to pass errors to the view (@errors). Initialising the array in the constructor (ie. uncomment # @errors = []) produces ActionView::Template::Error (no implicit conversion of String into Integer) on the select tag line.

Any help would be appreciated - I've searched high and low and can't find anything similar!

Danny · Accepted Answer · 2013-12-28 07:42:16Z

1

I think it has to do with the fact that "errors" is used in rails to communicate validation specific errors from the model to the view. I guess the "select" tries to read those errors, and expects a different format... I guess simply by renaming the errors variable, your issue will be solved...

answered Dec 28, 2013 at 7:42

Danny

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1 Comment

Brian Over a year ago

Knew it had to be something simple! Thanks for the prompt response, Danny.

Andrey Kryachkov · Accepted Answer · 2013-12-28 07:51:52Z

0

Or you can make your class more rails-friendly by including ActiveModel::Validations module. Which will handle all errors logic.

answered Dec 28, 2013 at 7:51

Andrey Kryachkov

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