CODEWITHSUNDEEP
ruby-on-railssimple-form
Kevin Dark
Kevin Dark

Reputation: 2149

Trouble using Simple Form on a rails starter project

I'm getting the following error while trying to create a form, undefined method 'model_name' for NilClass:Class

This project of mine is to capture my ideas. I could use a google doc but figured this should be easy enough to try and code an app for myself. Below is the code as I think it should be from what I read on the simple form site in my newopp.html.erb (in my opps view folder.

I created a controller and a model and I am certain part of my problem is the fact that I can't figure out what I need to code or what to add for code to properly complete this step. All the tutorials I have looked at gave me a couple ideas to play with and try to make work to no avail.

So basically I am sitting on a rails generated controller named opps_controller.rb and a model called opp.rb. Both of these are nothing more than what the generator provided since I had to go back to square one

Simple form code that I have started with

<%= simple_form_for @opp do |f| %>
  <%= f.input :title %>
  <%= f.input :subtitle %>
  <%= f.input :description %>
  <%= f.input :idea %>
  <%= f.input :added %>
  <%= f.button :submit %>
<% end %>

opp.rb file

class Opp < ActiveRecord::Base
  attr_accessible :added, :description, :idea, :subtitle, :title
end

If it makes a difference, I have migrated the database, I ran the simple form install script with the bootstrap configuration. I'm using rails 3.2.9 and ruby 1.9.3p362 (2012-12-25 revision 38607) [x86_64-darwin12.2.1]

As I mentioned I just have a blank controller that was created using a generator and I need to get the CRUD functionality working. Everything I have tried has failed at this point. I appreciate any assistance you can provide.

Upvotes: 0

Views: 57

Answers (1)

mind.blank
mind.blank

Reputation: 4880

It shouldn't be newopp.html.erb, just new.html.erb. So the path would be /views/opps/new.html.erb

If you're still getting an error then make sure @opp is defined in the controller:

class OppsController < ApplicationController
  def new
    @opp = Opp.new
  end

  def create
    @opp = Opp.new
    if @opp.update_attributes(params[:opp])
      ...
    else
      render 'new'
    end
  end
end

Upvotes: 1

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