RSpec file upload raises 'undefined method' for header row - ruby-on-rails-3

Question

I have a rails 3.2.16 app that has a model and controller to upload a csv file that contains a list of customer details. In the app itself this works fine, however I can't get the test to work.
I basically get an error that says
undefined method 'first_name,last_name,address_1,address_2,city .... etc.'
So it is trying to use the first line of the csv file as a method ... ?
The files I am using are shown below
spec (the commented out lines show things that I have tried along the way having seen other issues in SO)
it "upload a file with correct properties" do
#include Rack::Test::Methods
# #file = fixture_file_upload(Rails.root.join('spec/fixtures/files/cust-imp-good.csv'), 'text/csv')
#file = Rack::Test::UploadedFile.new(Rails.root.join('spec/fixtures/files/cust-imp-good.csv'), 'text/csv')
post :create, :customer_import => #file
response.should be_success
end
uploader model
class CustomerImport #< ActiveRecord::Base
extend ActiveModel::Naming
include ActiveModel::Conversion
include ActiveModel::Validations
attr_accessor :file
def initialize(attributes = {})
debugger
attributes.each { |name, value| send("#{name}=", value) }
end
def persisted?
false
end
def save
if imported_customers.map(&:valid?).all?
valid_ids = true
dive_shop_ids = DiveShop.ids_array
discount_level_ids = DiscountLevel.ids_array
imported_customers.each_with_index do |customer, index|
if !dive_shop_ids.include?(customer.dive_shop_id)
errors.add :base, "Row #{index+2}: dive_shop_id #{customer.dive_shop_id} is not valid"
valid_ids = false
end
if !discount_level_ids.include?(customer.discount_level_id)
errors.add :base, "Row #{index+2}: discount_level_id #{customer.discount_level_id} is not valid"
valid_ids = false
end
end
if valid_ids
imported_customers.each(&:save!)
return_val = imported_customers.count
else
false
end
else
imported_customers.each_with_index do |customer, index|
customer.errors.each do |message|
errors.add :base, "Row #{index+2}: #{message}"
end
end
false
end
end
def imported_customers
#imported_customers ||= ImportRecord.load_imported_records("Customer", file)
end
end
From the error shown below I can see that it is failing in the initializer. Although if I put a debugger in there the initializer looks to be OK.
Output from debugger inside initializer
rdb:1 attributes
Rack::Test::UploadedFile:0x0000000b089a98 #content_type="text/csv", #original_filename="cust-imp-good.csv", #tempfile=#<File:/tmp/cust-imp-good.csv20131212-26548-ynutnh>>
rdb:1
Output from rspec failure message
Failures:
1) CustomerImportsController POST 'create' upload a file with correct properties
Failure/Error: post :create, :customer_import => #file
NoMethodError:
undefined method `first_name,last_name,address1,address2,address3,city,state,country,postcode,telephone,email,dob,local_contact,emergency_name,emergency_number,dive_shop_id,discount_level_id
=' for #<CustomerImport:0x0000000a5f7580>
# ./app/models/customer_import.rb:10:in `block in initialize'
# ./app/models/customer_import.rb:10:in `initialize'
# ./app/controllers/customer_imports_controller.rb:14:in `new'
# ./app/controllers/customer_imports_controller.rb:14:in `create'
# ./spec/controllers/customer_imports_controller_spec.rb:20:in `block (3 levels) in <top (required)>'
any help would be much appreciated I tried the solution shown in Undefined Method 'NameOfField' for #<Model:0x000...> i.e rake: db:test:prepare and bundle exec rspec . but this didn't work either
EDIT to include controller code
class CustomerImportsController < ApplicationController
before_filter do
#menu_group = "diveshop"
end
def new
#customer_import = CustomerImport.new
end
def create
if params[:customer_import] != nil
#customer_import = CustomerImport.new(params[:customer_import])
return_value = #customer_import.save # need to add #customer_import.file here
if return_value != false
addauditlog("A bulk import of customers was carried out")
redirect_to customers_url, notice: "Imported #{return_value} customers successfully."
else
render :new
end
else
flash[:error] = "You have not selected a file"
redirect_to new_customer_import_url
end
end
end

Answer 1

In creating the new model instance, your controller seems to have passed a hash as a parameter with a key whose value is the first line of the csv file. You'll need to share the controller code and the first line of the file you've updated in order to be able to confirm that and provide more information.