{"id":25973,"date":"2021-08-01T08:08:09","date_gmt":"1970-01-01T00:00:00","guid":{"rendered":"http:\/\/www.sejuku.net\/blog\/?p=25973"},"modified":"2024-05-06T11:43:37","modified_gmt":"2024-05-06T02:43:37","slug":"%e3%80%90rails%e5%85%a5%e9%96%80%e3%80%91validations%e3%81%ae%e4%bd%bf%e3%81%84%e6%96%b9%e3%81%be%e3%81%a8%e3%82%81","status":"publish","type":"post","link":"https:\/\/www.sejuku.net\/blog\/25973","title":{"rendered":"\u3010Rails\u5165\u9580\u3011\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\uff08validations\uff09\u306e\u4f7f\u3044\u65b9\u307e\u3068\u3081"},"content":{"rendered":"

\u3053\u3093\u306b\u3061\u306f\uff01\u30d5\u30ea\u30fc\u30e9\u30f3\u30b9\u306e\u6843\u592a\u90ce\u3067\u3059\u3002<\/p>\n

Ruby on Rails<\/strong><\/span>\u306b\u306f\u3001\u30e6\u30fc\u30b6\u304c\u30d5\u30a9\u30fc\u30e0\u3067\u5165\u529b\u3057\u305f\u5024\u304c\u3001\u958b\u767a\u8005\u304c\u6c7a\u5b9a\u3057\u305f\u30eb\u30fc\u30eb\u306b\u6cbf\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u691c\u8a3c\u3059\u308b\u305f\u3081\u306bActiveModel::Validations\u30e2\u30b8\u30e5\u30fc\u30eb<\/strong><\/span>\uff08\u4ee5\u964d\u3001Validations\uff09\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001<\/p>\n

\u30fbValidations\u3068\u306f<\/strong><\/span><\/p>\n

\u30fbValidations\u306e\u57fa\u672c\u7684\u306a\u5b9f\u88c5\u65b9\u6cd5<\/strong><\/span><\/p>\n

\u3068\u3044\u3046\u57fa\u672c\u7684\u306a\u5185\u5bb9\u304b\u3089\u3001<\/p>\n

\u30fb\u6761\u4ef6\u306b\u4e00\u81f4\u3057\u305f\u3068\u304d\u3060\u3051Validations\u3092\u884c\u3046\u65b9\u6cd5<\/strong><\/span><\/p>\n

\u30fbValidations\u306e\u524d\u306b\u5b9f\u884c\u3059\u308b\u51e6\u7406\u3092\u5b9a\u7fa9\u3059\u308b\u65b9\u6cd5<\/strong><\/span><\/p>\n

\u30fbValidations\u306e\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u65b9\u6cd5<\/strong><\/span><\/p>\n

\u30fb\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u65e5\u672c\u8a9e\u306b\u3059\u308b\u65b9\u6cd5<\/strong><\/span><\/p>\n

\u306a\u3069\u306e\u5fdc\u7528\u7684\u306a\u4f7f\u3044\u304b\u305f\u3092\u3001Validations\u306b\u3064\u3044\u3066\u6b63\u3057\u304f\u7406\u89e3\u3057\u3001\u5fc5\u8981\u306a\u5834\u9762\u3067\u4f7f\u3044\u3053\u306a\u305b\u308b\u3088\u3046\u306b\u3001\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n

Validations\u3068\u306f<\/h2>\n

\u4f8b\u3048\u3070\u3001\u30e6\u30fc\u30b6\u306b\u4f1a\u54e1\u767b\u9332\u3092\u3057\u3066\u3082\u3089\u3046\u305f\u3081\u306b\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5165\u529b\u30d5\u30a9\u30fc\u30e0\u3092\u4f5c\u6210\u3057\u305f\u3068\u3057\u307e\u3059\u3002<\/p>\n

\"rails-validations01\"<\/p>\n

\u958b\u767a\u8005\u306f\u3001Tel\u6b04\u306b\u306f\u96fb\u8a71\u756a\u53f7\uff08\u3064\u307e\u308a\u6570\u5b57\u306e\u307f\uff09\u304c\u5165\u529b\u3055\u308c\u308b\u3053\u3068\u3092\u671f\u5f85\u3057\u307e\u3059\u3002<\/p>\n

\u3057\u304b\u3057\u3001\u30e6\u30fc\u30b6\u304c\u5168\u89d2\u6570\u5b57\u306a\u3069\u6570\u5b57\u4ee5\u5916\u306e\u6587\u5b57\u3092\u5165\u529b\u3059\u308b\u3053\u3068\u3082\u3042\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n

\u305d\u306e\u3088\u3046\u306a\u5834\u5408\u306f\u3001\u305d\u306e\u307e\u307e\u767b\u9332\u5b8c\u4e86\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u9593\u9055\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u6c17\u4ed8\u304b\u305b\u3001\u5165\u529b\u3057\u76f4\u3057\u3066\u3082\u3089\u3046\u65b9\u304c\u30e6\u30fc\u30b6\u306b\u3068\u3063\u3066\u3082\u958b\u767a\u8005\u306b\u3068\u3063\u3066\u3082\u89aa\u5207\u306a\u30b7\u30b9\u30c6\u30e0\u3068\u8a00\u3048\u307e\u3059\u3002<\/p>\n

\u300cTel\u6b04\u306b\u6570\u5b57\u4ee5\u5916\u306e\u6587\u5b57\u3092\u5165\u529b\u3057\u3066\u3044\u306a\u3044\u304b\u300d\u3092\u691c\u8a3c\u3059\u308b\u6a5f\u80fd\u3092\u3001Validations\u304c\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002<\/strong><\/span><\/p>\n

\u30b5\u30f3\u30d7\u30eb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u4f5c\u6210\u3059\u308b<\/h2>\n

\u691c\u8a3c\u6a5f\u80fd\u306e\u5b9f\u88c5\u65b9\u6cd5\u3092\u307f\u3066\u3044\u304f\u3046\u3048\u3067\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3092\u53c2\u8003\u306bRuby on Rails\u306e\u958b\u767a\u74b0\u5883\u3092\u69cb\u7bc9\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n \n

\n
\n
\n \n <\/div>\n
\n
\u521d\u5fc3\u8005\u3067\u3082\u304b\u3093\u305f\u3093\uff01Ruby on Rails \u306e\u958b\u767a\u74b0\u5883\u306e\u69cb\u7bc9\u624b\u9806\uff08Mac\/Windows \u4e21\u5bfe\u5fdc\uff09<\/div>\n
\u66f4\u65b0\u65e5\uff1a2024\u5e745\u67086\u65e5<\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/a>\n \n

\u305d\u3057\u3066\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u3082\u7d39\u4ecb\u3055\u308c\u3066\u3044\u308bScaffold\u3092\u4f7f\u3063\u3066\u3001\u30a2\u30d7\u30ea\u306e\u3072\u306a\u5f62\u3092\u4f5c\u308a\u307e\u3059\u3002<\/p>\n \n

\n
\n
\n \n <\/div>\n
\n
\u3010Rails\u5165\u9580\u3011\u521d\u3081\u3066\u306eWeb\u30a2\u30d7\u30ea\u958b\u767a\u306a\u3089scaffold\u304c\u6700\u77ed\uff01<\/div>\n
\u66f4\u65b0\u65e5\uff1a2024\u5e745\u67086\u65e5<\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/a>\n \n

\u5177\u4f53\u7684\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u30921\u884c\u305a\u3064\u9806\u756a\u306b\u5165\u529b\u3057\u307e\u3059\u3002<\/p>\n

[code]
\nbin\/rails generate scaffold member name:string mail_magazine:boolean email:string post_code:string tel:string
\nbin\/rails db:migrate
\n[\/code]<\/p>\n

\u3053\u308c\u3067\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3092\u5229\u7528\u3059\u308b\u30b5\u30f3\u30d7\u30eb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u4f5c\u6210\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n\n\n\n\n\t\n\n\t\n\t\n\t\n\t\n\t
\u30d5\u30a3\u30fc\u30eb\u30c9\u540d<\/th>\u8aac\u660e<\/th>\n<\/tr>\n<\/thead>\n
name<\/td>\u6c0f\u540d<\/td>\n<\/tr>\n
mail_magazine<\/td>\u30e1\u30fc\u30eb\u30de\u30ac\u30b8\u30f3\u306e\u8cfc\u8aad<\/td>\n<\/tr>\n
email<\/td>\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9<\/td>\n<\/tr>\n
post_code<\/td>\u90f5\u4fbf\u756a\u53f7<\/td>\n<\/tr>\n
tel<\/td>\u96fb\u8a71\u756a\u53f7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n

\u4ee5\u964d\u3001\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u69d8\u3005\u306a\u691c\u8a3c\u6a5f\u80fd\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/p>\n

\u3010\u57fa\u672c\u3011\u6587\u5b57\u6570\u3092\u691c\u8a3c\u3059\u308b<\/h2>\n

\u300c\u6c0f\u540d\u300d\u3092\u5165\u529b\u3059\u308b\u6b04\u306b\u3064\u3044\u3066\u3001\u300c1\u6587\u5b57\u304b\u308910\u6587\u5b57\u307e\u3067\u300d<\/strong><\/span>\u3068\u3044\u3046\u30eb\u30fc\u30eb\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n

\u203b\u6c0f\u540d\u306f\u4e00\u822c\u7684\u306b10\u6587\u5b57\u3067\u53ce\u307e\u308a\u307e\u305b\u3093\u3002\u5b9f\u969b\u306b\u5236\u9650\u3092\u3064\u3051\u308b\u5834\u5408\u306f\u3001255\u6587\u5b57\u307e\u3067\u306b\u3059\u308b\u306a\u3069\u3001\u5236\u9650\u3092\u7de9\u304f\u3057\u307e\u3057\u3087\u3046\u3002<\/strong><\/span><\/p>\n

models\/member.rb\u3092\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u7de8\u96c6\u3057\u307e\u3059\u3002<\/p>\n

class Member < ApplicationRecord\r\n  # name\u306e\u6587\u5b57\u6570\u306f\u30011\u6587\u5b57\u304b\u308910\u6587\u5b57\u307e\u3067\r\n  validates :name,\r\n    length: { minimum: 1, maximum: 10 }\r\nend<\/pre>\n
\u3053\u3053\u3067\u4f7f\u7528\u3057\u3066\u3044\u308bvalidates\u30e1\u30bd\u30c3\u30c9<\/strong><\/span>\u306f\u3001ActiveModel::Validations\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u3002<\/p>\n
validates\u30e1\u30bd\u30c3\u30c9\u306e\u5f8c\u306b\u3001\u300cname\u300d\uff08\u6c0f\u540d\uff09\u306e\u3088\u3046\u306b\u691c\u8a3c\u5bfe\u8c61\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u540d\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n
\u305d\u3057\u3066\u3001\u6587\u5b57\u6570\u3092\u691c\u8a3c\u3059\u308b\u3053\u3068\u3092\u6307\u5b9a\u3059\u308b\u300clength\u300d\u3068\u3001\u305d\u306e\u6700\u5c0f\u5024\uff08minimum\uff09\u3068\u6700\u5927\u5024\uff08maximum\uff09\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n
\u3053\u308c\u3067\u3001\u300c1\u6587\u5b57\u304b\u308910\u6587\u5b57\u307e\u3067\u300d<\/strong><\/span>\u3068\u3044\u3046\u30eb\u30fc\u30eb\u304c\u8a2d\u5b9a\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n
\u3010\u5fdc\u75281\u3011\u6761\u4ef6\u4ed8\u304d\u3067\u691c\u8a3c\u3059\u308b<\/h2>\n
\u300c\u30e1\u30fc\u30eb\u30de\u30ac\u30b8\u30f3\u3092\u53d7\u3051\u53d6\u308b\u30c1\u30a7\u30c3\u30af\u3092\u4ed8\u3051\u305f\u5834\u5408\u306f\u3001\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3092\u5fc5\u9808\u306b\u3059\u308b\u300d<\/strong><\/span>\u3068\u3044\u3046\u3088\u3046\u306b\u3001\u6761\u4ef6\u4ed8\u304d\u3067\u691c\u8a3c\u306e\u6709\u7121\u3092\u5207\u308a\u66ff\u3048\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u307e\u305a\u3001mail_magazine\u306e\u30c1\u30a7\u30c3\u30af\u306e\u6709\u7121\u306b\u304b\u304b\u308f\u3089\u305a\u3001email\u3092\u5fc5\u9808\u306b\u3059\u308b\u5834\u5408\u306e\u8a18\u8f09\u65b9\u6cd5\u3092\u78ba\u8a8d\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n
models\/member.rb\u3092\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u7de8\u96c6\u3057\u307e\u3059\u3002<\/p>\n
\u203b\u5148\u307b\u3069\u306e\u7d9a\u304d\u306e\u30b3\u30fc\u30c9\u306e\u305f\u3081\u3001\u300cvalidates :name, …\u300d\u3082\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n
class Member < ApplicationRecord\r\n  # name\u306e\u6587\u5b57\u6570\u306f\u30011\u6587\u5b57\u304b\u308910\u6587\u5b57\u307e\u3067\r\n  validates :name,\r\n    length: { minimum: 1, maximum: 10 }\r\n\r\n  # email\u306f\u5fc5\u9808\r\n  validates :email,\r\n    presence: true\r\nend<\/pre>\n
validates\u30e1\u30bd\u30c3\u30c9\u306e\u5f8c\u306b\u3001\u300cemail\u300d\uff08\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\uff09\u306e\u3088\u3046\u306b\u691c\u8a3c\u5bfe\u8c61\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u540d\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n
\u305d\u3057\u3066\u3001\u5165\u529b\u6e08\u307f\u304b\u3092\u5e38\u306b\u691c\u8a3c\u3059\u308b\u3053\u3068\u3092\u6307\u5b9a\u3059\u308b\u300cpresence: true\u300d\u3092\u6307\u5b9a\u3057\u307e\u3057\u305f\u3002<\/p>\n
\u3053\u3053\u306b\u300c\u30e1\u30fc\u30eb\u30de\u30ac\u30b8\u30f3\u3092\u53d7\u3051\u53d6\u308b\u30c1\u30a7\u30c3\u30af\u3092\u3064\u3051\u305f\u5834\u5408\u306f\u300d<\/strong><\/span>\u3068\u3044\u3046\u6761\u4ef6\u3092\u3064\u3051\u308b\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u5909\u66f4\u3057\u307e\u3059\u3002<\/p>\n
class Member < ApplicationRecord\r\n  # name\u306e\u6587\u5b57\u6570\u306f\u30011\u6587\u5b57\u304b\u308910\u6587\u5b57\u307e\u3067\r\n  validates :name,\r\n    length: { minimum: 1, maximum: 10 }\r\n\r\n  # mail_magazine\u3092\u30c1\u30a7\u30c3\u30af\u3057\u305f\u3068\u304d\u306f\u3001email\u306f\u5fc5\u9808\r\n  validates :email,\r\n    presence: { if: '!mail_magazine.blank?' }\r\nend<\/pre>\n
\u5e38\u306b\u691c\u8a3c\u3059\u308b\u3053\u3068\u3092\u6307\u5b9a\u3059\u308b\u300ctrue\u300d\u3092\u3001mail_magazine\u306b\u30c1\u30a7\u30c3\u30af\u3092\u4ed8\u3051\u305f\u3053\u3068\u3092\u6761\u4ef6\u3068\u3059\u308b\u300cif: ‘!mail_magazine.blank?’\u300d\u306b\u5909\u66f4\u3057\u307e\u3057\u305f\u3002<\/p>\n
\u3053\u3053\u306f\u3061\u3087\u3063\u3068\u30c8\u30ea\u30c3\u30ad\u30fc\u306a\u6c17\u304c\u3057\u307e\u3059\u306e\u3067\u3001\u89e3\u8aac\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n
\u300cmail_magazine.blank?\u300d\u3067\u306f\u30c1\u30a7\u30c3\u30af\u304c\u4ed8\u3044\u3066\u3044\u306a\u3044\u3068\u304d\u306b\u771f\uff08true\uff09\u306b\u306a\u308a\u307e\u3059\u304c\u3001\u300c!\u300d\u3092\u3064\u3051\u308b\u3068\u30c1\u30a7\u30c3\u30af\u304c\u4ed8\u3044\u3066\u3044\u308b\u3068\u304d\u306b\u771f\uff08true\uff09\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
\u3064\u307e\u308a\u3001\u30c1\u30a7\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u306b\u30c1\u30a7\u30c3\u30af\u304c\u4ed8\u3044\u3066\u3044\u308b\u3068\u304d\u306f\u300cpresence: true\u300d\u3001\u30c1\u30a7\u30c3\u30af\u304c\u4ed8\u3044\u3066\u3044\u306a\u3044\u3068\u304d\u306f\u300cpresence: false\u300d\u3068\u306a\u308a\u3001\u300c\u30e1\u30fc\u30eb\u30de\u30ac\u30b8\u30f3\u3092\u53d7\u3051\u53d6\u308b\u30c1\u30a7\u30c3\u30af\u3092\u4ed8\u3051\u305f\u5834\u5408\u306f\u3001\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3092\u5fc5\u9808\u306b\u3059\u308b\u300d<\/strong><\/span>\u304c\u691c\u8a3c\u3067\u304d\u308b\u3068\u3044\u3046\u30ef\u30b1\u3067\u3059\u3002<\/p>\n
\u3010\u5fdc\u75282\u3011\u30ab\u30b9\u30bf\u30e0\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u884c\u3046<\/h2>\n
\u3053\u3053\u307e\u3067\u306b\u7d39\u4ecb\u3057\u305f\u300clength<\/strong><\/span>\u300d\u3084\u300cpresence<\/strong><\/span>\u300d\u306f\u3001ActiveModel::Validations\u30e2\u30b8\u30e5\u30fc\u30eb\u3067\u6a19\u6e96\u3067\u7528\u610f\u3055\u308c\u3066\u3044\u308b\u691c\u8a3c\u6a5f\u80fd\u3067\u3057\u305f\u3002<\/p>\n
\u4eca\u5ea6\u306f\u3001\u8907\u96d1\u306a\u691c\u8a3c\u6a5f\u80fd\u3092\u4f5c\u6210\u3059\u308b\u65b9\u6cd5\u3001\u683c\u597d\u3088\u304f\u8a00\u3046\u3068\u3001\u691c\u8a3c\u6a5f\u80fd\u3092\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3059\u308b\u65b9\u6cd5<\/strong><\/span>\u3092\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n
\u5177\u4f53\u7684\u306b\u306f\u3001\u90f5\u4fbf\u756a\u53f7\u304c\u6570\u5b573\u6841\uff0b\u30cf\u30a4\u30d5\u30f3\uff08-\uff09\uff0b\u6570\u5b574\u6841\u306e\u5f62\u5f0f\u3067\u3042\u308b\u3053\u3068\u3092\u691c\u8a3c\u3059\u308b\u6a5f\u80fd\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n
models\/member.rb\u3092\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u7de8\u96c6\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
# \u6570\u5b573\u6841\uff0b\u30cf\u30a4\u30d5\u30f3\uff08-\uff09\uff0b\u6570\u5b574\u6841\u306e\u5f62\u5f0f\u3067\u3042\u308b\u3053\u3068\u3092\u691c\u8a3c\u3059\u308b\u30af\u30e9\u30b9\r\nclass PostCodeValidator < ActiveModel::EachValidator\r\n  def validate_each(record, attribute, value)\r\n    record.errors.add(attribute, '\u306f\u3001\u6570\u5b573\u6841\uff0b\u30cf\u30a4\u30d5\u30f3\uff08-\uff09\uff0b\u6570\u5b574\u6841\u306e\u5f62\u5f0f\u3067\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\u3002') unless value =~ \/\\A[0-9]{3}-[0-9]{4}\\z\/\r\n  end\r\nend\r\n\r\nclass Member < ApplicationRecord\r\n  # name\u306e\u6587\u5b57\u6570\u306f\u30011\u6587\u5b57\u304b\u308910\u6587\u5b57\u307e\u3067\r\n  validates :name,\r\n    length: { minimum: 1, maximum: 10 }\r\n\r\n  # mail_magazine\u3092\u30c1\u30a7\u30c3\u30af\u3057\u305f\u3068\u304d\u306f\u3001email\u306f\u5fc5\u9808\r\n  validates :email,\r\n    presence: { if: '!mail_magazine.blank?' }\r\n\r\n  # post_code\u306f\u3001\u6570\u5b573\u6841\uff0b\u30cf\u30a4\u30d5\u30f3\uff08-\uff09\uff0b\u6570\u5b574\u6841\u306e\u5f62\u5f0f\r\n  validates :post_code,\r\n    post_code: true\r\nend<\/pre>\n
ActiveModel::EachValidator\u3092\u7d99\u627f\u3057\u305f\u72ec\u81ea\u306e\u691c\u8a3c\u30af\u30e9\u30b9\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002<\/strong><\/span><\/p>\n
\u30af\u30e9\u30b9\u540d\u306e\u4ed8\u3051\u65b9\u3068\u5229\u7528\u65b9\u6cd5\u306b\u306f\u95a2\u9023\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
\u4e0a\u306e\u30b5\u30f3\u30d7\u30eb\u306e\u3088\u3046\u306b\u300cPostCodeValidator\u300d\u3068\u3044\u3046\u691c\u8a3c\u30af\u30e9\u30b9\u540d\u306b\u3057\u305f\u5834\u5408\u306f\u3001\u691c\u8a3c\u6a5f\u80fd\u3092\u5229\u7528\u3059\u308b\u969b\u306b\u300clength\u300d\u3084\u300cpresence\u300d\u3092\u6307\u5b9a\u3059\u308b\u4ee3\u308f\u308a\u306b\u3001\u300cpost_code\u300d\u3092\u6307\u5b9a\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
\u691c\u8a3c\u30af\u30e9\u30b9\u540d\u306e\u300cPostCode\u300d\u306e\u3046\u3061\u3001\u5148\u982d\u306e\u5927\u6587\u5b57\u300cP\u300d\u306f\u5c0f\u6587\u5b57\u300cp\u300d\u306b\u306a\u308a\u3001\u9014\u4e2d\u306e\u5927\u6587\u5b57\u300cC\u300d\u306f\u30a2\u30f3\u30c0\u30fc\u30b9\u30b3\u30a2\uff0b\u5c0f\u6587\u5b57\u300cc\u300d\u306b\u306a\u308b\u6c7a\u307e\u308a\u3067\u3059\u3002<\/p>\n
\u305d\u3057\u3066\u3001PostCodeValidator\u30af\u30e9\u30b9\u306evalidate_each\u30e1\u30bd\u30c3\u30c9<\/strong><\/span>\u306b\u306f\u3001\u691c\u8a3c\u65b9\u6cd5\u3092\u5b9f\u88c5\u3057\u307e\u3059\u3002<\/p>\n
\u3053\u306e\u30e1\u30bd\u30c3\u30c9\u306e\u5f15\u6570\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u60c5\u5831\u304c\u6e21\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n\n\t\n\n\t\n\t\n\t
\u5f15\u6570<\/th>\u6e21\u3055\u308c\u308b\u60c5\u5831<\/th>\n<\/tr>\n<\/thead>\n
record<\/td>\u691c\u8a3c\u5bfe\u8c61\u306e\u30e2\u30c7\u30eb\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\uff08\u3053\u3053\u3067\u306fMember\uff09<\/td>\n<\/tr>\n
attribute<\/td>\u691c\u8a3c\u5bfe\u8c61\u306e\u5c5e\u6027\u540d<\/td>\n<\/tr>\n
value<\/td>\u691c\u8a3c\u5bfe\u8c61\u306e\u5c5e\u6027\u5024<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n
\u305d\u3053\u3067\u3001value\u304c\u300c\u6570\u5b573\u6841\uff0b\u30cf\u30a4\u30d5\u30f3\uff08-\uff09\uff0b\u6570\u5b574\u6841\u300d\u306e\u5f62\u5f0f\u306b\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u3001\u6b63\u898f\u8868\u73fe\uff08\/\\A[0-9]{3}-[0-9]{4}\\z\/\uff09\u3092\u4f7f\u7528\u3057\u3066\u691c\u8a3c\u3057\u307e\u3059\u3002<\/p>\n
\u6b63\u898f\u8868\u73fe\u3092\u4f7f\u3063\u3066\u3044\u308b\u3068\u304d\u306f\u3001\\A\u3084\\z\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3068\u3066\u3082\u5927\u5207\u3067\u3059\u3002<\/strong><\/span><\/p>\n
\u4ee5\u4e0b\u306e\u8a18\u4e8b\u304c\u53c2\u8003\u306b\u306a\u308a\u307e\u3059\u306e\u3067\u3001\u5fc5\u305a\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n
\u53c2\u8003\uff1ahttps:\/\/qiita.com\/jnchito\/items\/ea7832df6f64a9034872<\/a><\/p>\n
\u3010\u5b9f\u8df5\u3011\u691c\u8a3c\u3059\u308b\u524d\u306b\u51e6\u7406\u3092\u5b9f\u884c\u3059\u308b<\/h2>\n
\u5b9f\u8df5\u7684\u306a\u5185\u5bb9\u3092\u3082\u3046\u3072\u3068\u3064\u3002<\/p>\n
\u5165\u529b\u5024\u3092\u691c\u8a3c\u3059\u308b\u524d\u306b\u3061\u3087\u3063\u3068\u3057\u305f\u51e6\u7406\u3092\u5b9f\u884c\u3059\u308b\u65b9\u6cd5\u3092\u7d39\u4ecb\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n
\u5177\u4f53\u7684\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u90f5\u4fbf\u756a\u53f7\u3084\u96fb\u8a71\u756a\u53f7\u306b\u5165\u529b\u3055\u308c\u3066\u3057\u307e\u3063\u305f\u4e0d\u8981\u306a\u30b9\u30da\u30fc\u30b9\u3092\u524a\u9664\u3059\u308b\u65b9\u6cd5\u3067\u3059\u3002<\/p>\n
\u30e6\u30fc\u30b6\u306e\u5165\u529b\u5024\uff1a\uff08\u8907\u6570\u306e\u30b9\u30da\u30fc\u30b9\uff09<\/strong><\/span>0312345678<\/strong><\/span>\uff08\u8907\u6570\u306e\u30b9\u30da\u30fc\u30b9\uff09<\/strong><\/span><\/p>\n
\u4ee5\u4e0b\u306e\u30b5\u30f3\u30d7\u30eb\u306e\u300cbefore_validation\u300d<\/strong><\/span>\u3068\u300cbefore_validations\u300d<\/strong><\/span>\u306b\u6ce8\u76ee\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
# \u6570\u5b573\u6841\uff0b\u30cf\u30a4\u30d5\u30f3\uff08-\uff09\uff0b\u6570\u5b574\u6841\u306e\u5f62\u5f0f\u3067\u3042\u308b\u3053\u3068\u3092\u691c\u8a3c\u3059\u308b\u30af\u30e9\u30b9\r\nclass PostCodeValidator < ActiveModel::EachValidator\r\n  def validate_each(record, attribute, value)\r\n    record.errors.add(attribute, '\u306f\u3001\u6570\u5b573\u6841\uff0b\u30cf\u30a4\u30d5\u30f3\uff08-\uff09\uff0b\u6570\u5b574\u6841\u306e\u5f62\u5f0f\u3067\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\u3002') unless value =~ \/\\A[0-9]{3}-[0-9]{4}\\z\/\r\n  end\r\nend\r\n\r\nclass Member < ApplicationRecord\r\n  before_validation :before_validations\r\n\r\n  # name\u306e\u6587\u5b57\u6570\u306f\u30011\u6587\u5b57\u304b\u308910\u6587\u5b57\u307e\u3067\r\n  validates :name,\r\n    length: { minimum: 1, maximum: 10 }\r\n\r\n  # mail_magazine\u3092\u30c1\u30a7\u30c3\u30af\u3057\u305f\u3068\u304d\u306f\u3001email\u306f\u5fc5\u9808\r\n  validates :email,\r\n    presence: { if: '!mail_magazine.blank?' }\r\n\r\n  # post_code\u306f\u3001\u6570\u5b573\u6841\uff0b\u30cf\u30a4\u30d5\u30f3\uff08-\uff09\uff0b\u6570\u5b574\u6841\u306e\u5f62\u5f0f\r\n  validates :post_code,\r\n    post_code: true\r\n\r\n  # tel\u306f\u6570\u5b57\u306e\u307f\u8a31\u53ef\u3002\u30cf\u30a4\u30d5\u30f3\u3084\u30ab\u30c3\u30b3\u306f\u8a8d\u3081\u306a\u3044\r\n  validates :tel,\r\n    numericality: { only_integer: true}\r\n\r\n  private\r\n  def before_validations\r\n    # post_code\u3068tel\u306e\u6587\u5b57\u5217\u304b\u3089\u5148\u982d\u3068\u672b\u5c3e\u306e\u30b9\u30da\u30fc\u30b9\u3092\u9664\u53bb\u3059\u308b\r\n    post_code.strip!\r\n    tel.strip!\r\n  end\r\nend<\/pre>\n
before_validation\u30e1\u30bd\u30c3\u30c9\u3067\u306f\u3001\u3059\u3079\u3066\u306e\u691c\u8a3c\u306e\u524d\u306b\u4e00\u5ea6\u3060\u3051\u5b9f\u884c\u3055\u308c\u308b\u30e1\u30bd\u30c3\u30c9\uff08\u3053\u306e\u4f8b\u3067\u306fbefore_validations\uff09\u3092\u767b\u9332\u3067\u304d\u307e\u3059\u3002<\/p>\n
before_validation\u30e1\u30bd\u30c3\u30c9\u306b\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u3092\u6307\u5b9a<\/strong><\/span>\u3057\u3001\u305d\u306e\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u306b\u306f\u691c\u8a3c\u524d\u306e\u51e6\u7406\u3092\u5b9a\u7fa9\u3059\u308b<\/strong><\/span>\u3068\u3044\u30462\u6bb5\u69cb\u3048\u3067\u3059\u3002<\/p>\n
\u3053\u306e\u3088\u3046\u306b\u3059\u308b\u3068\u3001\uff08name\u3084email\u3082\u542b\u3081\u3066\uff09\u3059\u3079\u3066\u306e\u691c\u8a3c\u304c\u5b9f\u884c\u3055\u308c\u308b\u524d\u306b\u3001post_code\u3068tel\u306e\u6587\u5b57\u5217\u304b\u3089\u5148\u982d\u3068\u672b\u5c3e\u306e\u30b9\u30da\u30fc\u30b9\u304c\u9664\u53bb\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3059\u308b<\/h2>\n
\u3053\u3053\u307e\u3067\u306e\u30b3\u30fc\u30c9\u3067\u3001\u3059\u3079\u3066\u306e\u691c\u8a3c\u306b\u5f15\u3063\u304b\u304b\u3063\u3066\u3057\u307e\u3063\u305f\u5834\u5408\u306e\u753b\u9762\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
\"rails-validations02\"<\/p>\n
\u3088\u304f\u898b\u308b\u3068\u3001\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u82f1\u8a9e\u3060\u3063\u305f\u308a\u65e5\u672c\u8a9e\u3060\u3063\u305f\u308a\u3057\u307e\u3059\u306d\u3002<\/p>\n
\u3053\u308c\u3092\u3001\u3059\u3079\u3066\u65e5\u672c\u8a9e\u306b\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n
\uff081\uff09\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5165\u529b\u3057\u307e\u3059\u3002<\/p>\n
[code]
\nwget https:\/\/raw.github.com\/svenfuchs\/rails-i18n\/master\/rails\/locale\/ja.yml -P config\/locales\/
\n[\/code]<\/p>\n
\u4ee5\u4e0b\u306eGitHub\u306erails-i18n\u30ea\u30dd\u30b8\u30c8\u30ea\u304b\u3089\u3001ja.yml\u304c\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3055\u308c\u3066config\/locales\u306b\u4fdd\u5b58\u3055\u308c\u307e\u3059\u3002<\/p>\n
\u53c2\u8003\uff1ahttps:\/\/github.com\/svenfuchs\/rails-i18n<\/a><\/p>\n
\uff082\uff09\u300cconfig\/application.rb\u300d\u3092\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u7de8\u96c6\u3057\u307e\u3059\u3002<\/p>\n
[code]
\nrequire_relative ‘boot’<\/p>\n
require ‘rails\/all’<\/p>\n
# Require the gems listed in Gemfile, including any gems
\n# you’ve limited to :test, :development, or :production.
\nBundler.require(*Rails.groups)<\/p>\n
module Sample1
\n  class Application < Rails::Application
\n    # Initialize configuration defaults for originally generated Rails version.
\n    config.load_defaults 5.1<\/p>\n
    # Settings in config\/environments\/* take precedence over those specified here.
\n    # Application configuration should go into files in config\/initializers
\n    # — all .rb files in that directory are automatically loaded.
\n    config.i18n.default_locale = :ja
\n  end
\nend
\n[\/code]<\/p>\n
\u5f8c\u308d\u304b\u30893\u884c\u76ee\u306b\u300cconfig.i18n.default_local = :ja\u300d\u3092\u8ffd\u52a0\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
\uff083\uff09\u30b5\u30fc\u30d0\u30fc\u3092\u518d\u8d77\u52d5\u3057\u307e\u3059\u3002<\/p>\n
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