Import CSV Into Rails Application via ActiveRecord

import_csv_rails_activerecord.rb

# If you are using a gem like paper_trail that records
# user edit history, you should "login" first.
# See this gist for more details if you are
# using Devise:
# https://gist.github.com/2855072

require 'csv'

csv_text = File.read('my_csv_file_to_import.csv')

# The CSV header labels should match exactly what the fields
# in your model are. They don't have to be in order, but you
# at least must have data for the required fields for the model.

csv = CSV.parse(csv_text, :headers => true)

csv.each do |row|
  row = row.to_hash.with_indifferent_access

  # Certain fields like Dates should be converted from string into 
  # the appropriate object. With dates you can do something like this:
  # row["some_date_field"] = Date.strptime(row["some_date_field"],"%m/%d/%Y")
  
  MyModel.create!(row.to_hash.symbolize_keys)

end