CODEWITHSUNDEEP
ruby-on-rails
user3277633
user3277633

Reputation: 1923

Rails: undefined method `first' for nil:NilClass

Solved: the issue was from Lob's internal server error on their end.

I'm going through the following example taken from this blog on Lob, and the code can be found on Github here

After I cloned the repo, I bundle installed the gems, fired up the server, and head towards localhost:3000/postcards. After inputting a short message in the Message field, I am redirected to an error page with the undefined method `first' for nil:NilClass error.

The error appears to be in the controller

class PostcardsController < ApplicationController

  LOB = Lob.load(api_key: "test_0dc8d51e0acffcb1880e0f19c79b2f5b0cc")

  def index
  end

  def create
    template_file = ERB.new(File.open(File.join(Rails.root, 'app', 'views', 'postcards', 'postcard_front.html.erb')).read)
    custom_html = template_file.result(binding)

    @results = LOB.postcards.create(
      name: "Demo Postcard",
      to: {
        name: params[:postcards][:to_name],
        address_line1: params[:postcards][:to_address_line1],
        city: params[:postcards][:to_city],
        state: params[:postcards][:to_state],
        zip: params[:postcards][:to_zip],
        country: "US",
      },
      from: {
        name: params[:postcards][:from_name],
        address_line1: params[:postcards][:from_address_line1],
        city: params[:postcards][:from_city],
        state: params[:postcards][:from_state],
        zip: params[:postcards][:from_zip],
        country: "US",
      },
      front: custom_html,
      message: params[:postcards][:message],
      full_bleed: 1
    )
  end

end

From the tutorial blog, it appears that this error should not be happening. What is this error, and why is it happening on my environment?

Upvotes: 0

Views: 338

Answers (1)

user2550943
user2550943

Reputation:

There is an open issue on this at GitHUb. I am getting the same error. 7/27/2016

Upvotes: 1

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