How can I import a CSV file via a rake task?

Question

I know this question has been asked a lot on this forum but I'm under a strict deadline and I need some help, so any advice is much appreciated. I'm new to Ruby on Rails so please keep that in mind when responding. I want to create a rake task that, when run, updates multiple tables in mysqlite db. This is a migration file that creates a new incident in my db. How do I create a rake task that will input all this info via a CSV file. Can someone PLEASE give me some help in writing the rake file from start to finish. Obviously you don't need to write every task for every string, just give me a few examples. And besides the actual rake file, do I need to add code to any other part of my app (I know thats a very general question, but if I do need to add code, I would appreciate a general description of where). I feel a little bit of guidance will go along way. If anyone needs any more information from me please just ask.

class CreateIncidents < ActiveRecord::Migration
  def self.up
    create_table :incidents do |t|
      t.datetime :incident_datetime
      t.string :location
      t.string :report_nr
      t.string :responsible_party
      t.string :area_resident
      t.string :street
      t.string :city
      t.string :state
      t.string :home_phone
      t.string :cell_phone
      t.string :insurance_carrier_name
      t.string :insurance_carrier_street
      t.string :insurance_carrier_city
      t.string :insurance_carrier_state
      t.string :insurance_carrier_phone
      t.string :insurance_carrier_contact
      t.string :policy_nr
      t.string :vin_nr
      t.string :license_nr
      t.string :vehicle_make
      t.string :vehicle_model
      t.string :vehicle_year


      t.timestamps
    end
  end

  def self.down
    drop_table :incidents
  end
end

Answer 1

under your project folder in lib/task create a rake file say "import_incidents_csv.rake"

follow this Ruby on Rails - Import Data from a CSV file

in rake file have following code

require 'csv'
namespace :import_incidents_csv do
  task :create_incidents => :environment do
    "code from the link"  
  end
end 

You can call this task as "rake import_incidents_csv:create_incidents"