Circular dependency detected while autoloading constant TransactionsController

[ryanb082]

I get this run time error when I try to go to /buy/som_permalink on my local host. Do I need to add route to the TransactionsController?

[peterkeen]

Hi @ryanb082. That's a funky error. Could you paste your controller and routes?

[ryanb082]

class TransactionController < ApplicationController
  skip_before_action :authenticate_user!,
    only: [:new, :create]

def new @product = Product.find_by!( permalink: params[:permalink] ) end

def pickup @sale = Sale.find_by!(guid: params[:guid]) @product = @sale.product end

def create product = Product.find_by!( permalink: params[:permalink] ) token = params[:stripeToken]

begin
  charge = Stripe::Charge.crete(
    amount:      product.price,
    currency:    "usd",
    card:        token,
    description: params[:stripeEmail]

[ryanb082]

Rails.application.routes.draw do resources :products

devise_for :users

get '/buy/:permalink', to: 'transactions#new', as: :show_buy post '/buy/:permalink', to: 'transactions#create', as: :buy get '/pickup/:guid', to: 'transactions#pickup', as: :pickup get '/download/:guid', to: 'transactions#download', as: :download

[peterkeen]

Change class TransactionController to class TransactionsController (note the s)

[ryanb082]

I now get this error ActiveRecord:NotFound def new @product = Product.find_by!( permalink: params[:permalink] ) end

i put in some test products, I don't understand why i would get this error

[peterkeen]

Hm. Did you spell the permalink correctly? what happens if you try the find_by! in a rails console?

[ryanb082]

Undefined method for 'by!'

[peterkeen]

Product.find_by!(permalink: "whatever-your-product-permalink-is") should return something (replace the whatever-your-product-permalink-is with your real permalink).

Also, if you say Product.all, does it give you what you expect?

[ryanb082]

Yes, it show's me all the products i put in. For pemalink, should i just make up one I didn't list any

[peterkeen]

In the setup described in this chapter, every product needs a permalink attribute, which is a unique human-readable string describing the product. You can just make them up, but the Product records in the database need to have it set.

[ryanb082]

Okay great, I will be upgrading to mastering modern payments soon. Thank you for your help. Question, how much do you charge for consulting?

[peterkeen]

No problem! Could you email me at hi@petekeen.net about consulting?

[ryanb082]

Will do