CODEWITHSUNDEEP
csvruby-on-rails-4rails-activerecordrailscastsroo-gem
Muhammad Hamza Altaf
Muhammad Hamza Altaf

Reputation: 117

Validation problems while creating record through file import using Roo gem and following railscast

I am trying to create records through file imports format can be csv excel etc and I have implemented it following the Railscast396. but as I import file it says "Validation failed: Email can't be blank, Password can't be blank. Here is my code

    class Student < ActiveRecord::Base
  # Include default devise modules. Others available are:
  # :confirmable, :lockable, :timeoutable and :omniauthable
  has_many :quizzes
  has_many :classrooms

  #to import file
  **def self.attr_names
    [:email, :password, :password_confirmation]
  end**

  def self.import(file)
    spreadsheet = open_spreadsheet(file)
    header = spreadsheet.row(1)
    (2..spreadsheet.last_row).each do |i|
      row = Hash[[header, spreadsheet.row(i)].transpose]
      row.inspect
      student = find_by_id(row["id"]) || new
      student.attributes = row.to_hash.slice(*attr_names)
      student.save!
    end
  end

  def self.open_spreadsheet(file)
  case File.extname(file.original_filename)
    when ".csv" then Roo::CSV.new(file.path, file_warning: :ignore)
    when ".xls" then Roo::Excel.new(file.path, file_warning: :ignore)
    when ".xlsx" then Roo::Excelx.new(file.path, file_warning: :ignore)
    else raise "Unknown file type: #{file.original_filename}"
  end
end

  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable
end

view is

<%= form_tag addStudents_classrooms_path, multipart: true do %>
  <%= file_field_tag :file %>
  <%= submit_tag "Import" %>
<% end %>

routes.rb resources :classrooms do collection { post :addStudents }

csv file i am trying to load

id,email,password,password_confirmation
22,[email protected],password,password
23,[email protected],password,password

Upvotes: 0

Views: 410

Answers (1)

Alexandre Angelim
Alexandre Angelim

Reputation: 6753

This is probably happening because #to_hash doesn't return a hash with indifferent access. You're trying to slice symbolized keys and #to_hash created keys as strings.

Try this:

def self.attr_names
  %w(email password password_confirmation)
end

Upvotes: 0

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