Rails - Import SQL file as seed

seeds.rb

unless Rails.env.production?
  connection = ActiveRecord::Base.connection
  connection.tables.each do |table|
    connection.execute("TRUNCATE #{table}") unless table == "schema_migrations"
  end

  sql = File.read('db/import.sql')
  statements = sql.split(/;$/)
  statements.pop

  ActiveRecord::Base.transaction do
    statements.each do |statement|
      connection.execute(statement)
    end
  end
end

Just so everyone that may stumble on this page from Google (as I did) fully understands, this script will empty out your tables before seeding it with data from db/import.sql. This is due to the TRUNCATE SQL command on line 4. If you have seeded your database tables with other data prior to running this, you will lose that data.

If you are wanting to import data via SQL from within your db/seeds.rb file and you are running the standard rake command sequence to destroy then re-create and populate your database (rake db:drop db:create db:migrate db:seed), change the script to this: Ruby on Rails - Import Data via SQL in seeds.rb

Very helpful. Thank you @seyhunak.

Very helpful, Thank you, @seyhunak