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Railsでマスターデータの管理にCSVを使うときのseeds.rb
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require 'csv' | |
Dir.glob('db/seeds/*.csv') do |file| | |
puts file | |
table_name = file.gsub(/^.*\/([\w\d_]+)\.csv/, '\1') | |
model_class = Module.const_get(table_name.classify) | |
models = CSV.read(file, headers: true).collect{|r| model_class.new(r.to_hash)} | |
update_columns = model_class.accessible_attributes.to_a.reject{|s| s.empty?} | |
model_class.record_timestamps = false if %w(created_at, updated_at).any?{|t| update_columns.include?(t)} | |
ActiveRecord::Base.clear_active_connections! | |
model_class.import models, on_duplicate_key_update: update_columns | |
end |
メモ
データを入れ直したいときは以下のコマンド。
rake db:reset
rake db:seed
※全部のテーブルの中身が消えるから本番環境では使えない。
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必要なモジュール
使い方