Rails\u3067\u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u3084\u30de\u30b9\u30bf\u30c7\u30fc\u30bf\u3092\u4f5c\u6210\u3059\u308b\u305f\u3081\u306b\u3001seeds.rb\u3092\u4f7f\u3046\u3068\u601d\u3044\u307e\u3059\u3002
\n\u3057\u304b\u3057\u3001\u305d\u306e\u307e\u307e\u4f7f\u3046\u306e\u3067\u306f\u4e0d\u4fbf\u3060\u3063\u305f\u306e\u3067\u3001\u4ee5\u4e0b\u306e\u6761\u4ef6\u3092\u6e80\u305f\u3059\u3088\u3046\u306b\u6539\u826f\u3057\u307e\u3057\u305f\u3002<\/p>\n
\u30fb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30ec\u30b3\u30fc\u30c9\u3092ID\u3067\u691c\u7d22\u3057\u3001\u898b\u3064\u304b\u308c\u3070\u65e2\u5b58\u306e\u30c7\u30fc\u30bf\u3092seeds.rb\u306b\u5b9a\u7fa9\u3055\u308c\u305f\u30c7\u30fc\u30bf\u3067\u66f4\u65b0
\n\u30fb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30ec\u30b3\u30fc\u30c9\u3092ID\u3067\u691c\u7d22\u3057\u3001\u898b\u3064\u304b\u3089\u306a\u304b\u3063\u305f\u5834\u5408\u3001seeds.rb\u306b\u5b9a\u7fa9\u3055\u308c\u305f\u30c7\u30fc\u30bf\u3092\u633f\u5165
\n\u30fbseeds.rb\u306b\u5b9a\u7fa9\u3055\u308c\u305f\u4ee5\u5916\u306eID\u306e\u30ec\u30b3\u30fc\u30c9\u3092\u5168\u524a\u9664<\/p>\n
\u4f8b\u3048\u3070item_kind\u3068user\u30c6\u30fc\u30d6\u30eb\u304c\u3042\u308b\u5834\u5408\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
\r\ndef insert_and_delete_unnecessary_record(model_snake_case_name, seed_data)\r\n current_model = eval(model_snake_case_name.camelize)\r\n current_ids = current_model.all.ids\r\n inserted_ids = []\r\n seed_data.each do |row|\r\n inserted_ids << row[:id]\r\n new_seed_data = current_model.find_or_initialize_by(id: row[:id])\r\n row.delete(:id)\r\n row.each do |key, value|\r\n value = "'#{value}'" if value.is_a? String\r\n value = 'nil' if value == nil\r\n eval("new_seed_data.#{key} = #{value}")\r\n end\r\n new_seed_data.save!\r\n end\r\n\r\n current_ids.each do |id|\r\n unless inserted_ids.include?(id)\r\n current_model.destroy(id)\r\n end\r\n end\r\nend\r\n\r\nseed_item_kind = [\r\n {id: 1, name: '\u5bb6\u96fb'},\r\n {id: 2, name: '\u30b2\u30fc\u30e0'},\r\n {id: 3, name: '\u30b9\u30dd\u30fc\u30c4'},\r\n {id: 4, name: '\u30d1\u30bd\u30b3\u30f3'}\r\n]\r\n\r\ninsert_and_delete_unnecessary_record('item_kind',\u3000'seed_item_kind')\r\n\r\n\r\nseed_user = [\r\n {id: 1, name: '\u7530\u4e2d', age: 20},\r\n {id: 2, name: '\u5c71\u4e2d', age: 30},\r\n {id: 3, name: '\u4f50\u85e4', age: 40},\r\n {id: 4, name: '\u5c0f\u7530', age: 26}\r\n]\r\n\r\ninsert_and_delete_unnecessary_record('user', 'seed_user')\r\n<\/pre>\ninsert_and_delete_unnecessary_record\u95a2\u6570\u3092seeds.rb\u306e\u4e00\u756a\u4e0a\u306b\u30b3\u30d4\u30da\u3057\u307e\u3059\u3002
\n\u305d\u3057\u3066\u3001\u5909\u6570\u306b\u914d\u5217\u3068\u3057\u3066\u30ab\u30e9\u30e0\u3092\u30ad\u30fc\u3001\u30d0\u30ea\u30e5\u30fc\u3092\u305d\u306e\u30ab\u30e9\u30e0\u306e\u5024\u3068\u3057\u3066\u5165\u308c\u307e\u3059\u3002
\n\u6700\u5f8c\u306b\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3057\u3066insert_and_delete_unnecessary_record\u95a2\u6570\u3092\u547c\u3073\u51fa\u305b\u3070\u3001\u914d\u5217\u3068\u3057\u3066\u5b9a\u7fa9\u3057\u305f\u30c7\u30fc\u30bf\u304c\u305d\u306e\u307e\u307e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u767b\u9332\u3055\u308c\u307e\u3059\u3002<\/p>\n
\r\ninsert_and_delete_unnecessary_record(\u30c6\u30fc\u30d6\u30eb\u540d,\u3000\u914d\u5217\u3092\u5b9a\u7fa9\u3057\u305f\u5909\u6570\u540d)\r\n<\/pre>\n