Question

I loaded some seed data in using the code below, and it worked fine. Then, I needed to add two more columns, and I did so using the following steps, but it’s not attaching the two new columns seed data to the table, what am I doing wrong?

Steps:

1. Add two columns using migration
2. Make them attr_accessible in the model
3. Replace old CSV file with new CSV file
4. Change the seed.rb file to plug in the new data
5. Run rake db:seed

Seed.rb

require 'csv'

Model.delete_all
CSV.foreach("#{Rails.root}/lib/data/model.csv") do |row|
   Model.create!(:model_number => row[0], :areq => row[1], :length => row[2], :width => row[3], :depth => row[4], :material => row[5], :frame => row[6], :edge => row[7], :tubes => row[8], :tube_length => row[9])
end

Schema.rb

create_table "models", :force => true do |t|
  t.string   "model_number"
  t.float    "areq"
  t.float    "length"
  t.float    "width"
  t.float    "depth"
  t.string   "material"
  t.string   "frame"
  t.float    "edge"
  t.datetime "created_at",   :null => false
  t.datetime "updated_at",   :null => false
  t.float    "tubes"
  t.float    "tube_length"
end

Answer 1

Cant say this may work 100%

Try Model.reset_column_information above the seed file once

this should refresh the columns information in table.

require 'csv'

Model.reset_column_information

Model.delete_all
#......

just a guess check if the proper model.csv is getting loaded and have column 8 and 9 means have in all 10 columns.