{"id":25983,"date":"2016-11-22T10:16:15","date_gmt":"2016-11-22T10:16:15","guid":{"rendered":"https:\/\/dev.railscarma.com\/track-changes-models-data-paper-trail-gem\/"},"modified":"2021-05-27T06:17:21","modified_gmt":"2021-05-27T06:17:21","slug":"track-changes-models-data-paper-trail-gem","status":"publish","type":"post","link":"https:\/\/www.railscarma.com\/ja\/%e3%83%96%e3%83%ad%e3%82%b0\/%e6%8a%80%e8%a1%93%e8%ab%96%e6%96%87\/track-changes-models-data-paper-trail-gem\/","title":{"rendered":"Paper Trail Gem \u3092\u4f7f\u7528\u3057\u3066\u30e2\u30c7\u30eb\u306e\u30c7\u30fc\u30bf\u3078\u306e\u5909\u66f4\u3092\u8ffd\u8de1\u3059\u308b"},"content":{"rendered":"<p>\u30da\u30fc\u30d1\u30fc \u30c8\u30ec\u30a4\u30eb\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u7de8\u96c6\u3068\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\u306e\u76ee\u7684\u3067\u3001\u30e2\u30c7\u30eb \u30c7\u30fc\u30bf\u306e\u3059\u3079\u3066\u306e\u5909\u66f4\u3092\u8ffd\u8de1\u3067\u304d\u307e\u3059\u3002\u3053\u306e gem \u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u306e\u3042\u3089\u3086\u308b\u6bb5\u968e\u3067\u30e2\u30c7\u30eb\u304c\u3069\u306e\u3088\u3046\u306b\u898b\u3048\u308b\u304b\u3092\u78ba\u8a8d\u3067\u304d\u3001\u30e2\u30c7\u30eb \u30c7\u30fc\u30bf\u306e\u4efb\u610f\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u623b\u3059\u3053\u3068\u304c\u3067\u304d\u3001\u30ec\u30b3\u30fc\u30c9\u304c\u7834\u68c4\u3055\u308c\u305f\u5f8c\u306b\u3059\u3079\u3066\u306e\u5909\u66f4\u3092\u5143\u306b\u623b\u3059\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u5b8c\u5168\u306b\u5fa9\u5143\u3057\u307e\u3059\u3002<\/p>\n<p>\u5b9d\u77f3 <strong>\u300c\u30da\u30fc\u30d1\u30fc\u30c8\u30ec\u30a4\u30eb\u300d<\/strong> Bundle install \u3092\u5b9f\u884c\u3057\u3066\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059<\/p>\n<p>\u30d0\u30f3\u30c9\u30eb\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u5f8c\u3001\u6b21\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u3066\u30d0\u30fc\u30b8\u30e7\u30f3 \u30c6\u30fc\u30d6\u30eb\u3092\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u8ffd\u52a0\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre><code>\u30d0\u30f3\u30c9\u30eb\u5b9f\u884c\u30ec\u30fc\u30eb\u751f\u6210\u3001paper_trail:install<\/code><\/pre>\n<pre><code>\u30d0\u30f3\u30c9\u30eb\u5b9f\u884c rake db:\u79fb\u884c<\/code><\/pre>\n<p>\u8ffd\u8de1\u306e\u305f\u3081\u306b\u30e2\u30c7\u30eb\u306b has_paper_trail \u30e1\u30bd\u30c3\u30c9\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/p>\n<pre><code>class Product &lt; ActiveRecord::Base has_paper_trail end<\/code><\/pre>\n<p>current_user \u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u4ee5\u4e0b\u306e\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u306b\u3088\u3063\u3066\u7279\u5b9a\u306e\u5909\u66f4\u306e\u8cac\u4efb\u8005\u3092\u8ffd\u8de1\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre><code>class ApplicationController before_action :set_paper_trail_whodunnit end<\/code><\/pre>\n<p><strong><br \/>\n\u30da\u30fc\u30d1\u30fc\u30c8\u30ec\u30a4\u30eb\u30b8\u30a7\u30e0\u306e\u7279\u5fb4<\/strong><\/p>\n<p>\u4f5c\u6210\u3001\u66f4\u65b0\u3001\u7834\u68c4\u306a\u3069\u3001\u30e2\u30c7\u30eb\u5185\u3067\u767a\u751f\u3057\u305f\u3059\u3079\u3066\u306e\u5909\u66f4\u3092\u4fdd\u5b58\u3057\u307e\u3059\u3002<br \/>\n\u5909\u66f4\u304c\u306a\u3044\u9650\u308a\u3001\u66f4\u65b0\u306f\u4fdd\u5b58\u3055\u308c\u307e\u305b\u3093<br \/>\n\u5b9f\u969b\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3084\u4e00\u5ea6\u7834\u68c4\u3055\u308c\u305f\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u542b\u3080\u3059\u3079\u3066\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u53d6\u5f97\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><strong>\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9<\/strong><\/p>\n<p>\u3053\u308c\u3067\u3001\u7279\u5b9a\u306e\u30e2\u30c7\u30eb\u306e\u3059\u3079\u3066\u306e\u5909\u66f4\u3092\u8fd4\u3059 version \u30e1\u30bd\u30c3\u30c9\u304c\u5b8c\u6210\u3057\u307e\u3057\u305f\u3002<\/p>\n<pre><code>product = Product.find 2 \u88fd\u54c1.\u30d0\u30fc\u30b8\u30e7\u30f3<\/code><\/pre>\n<pre><code># [, , ...]<\/code><\/pre>\n<p>vesrion \u306b\u57fa\u3065\u3044\u3066\u3001\u30e2\u30c7\u30eb\u306b\u767a\u751f\u3057\u305f\u5909\u66f4\u3092\u898b\u3064\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059<\/p>\n<pre><code>v = \u88fd\u54c1.\u30d0\u30fc\u30b8\u30e7\u30f3.\u6700\u7d42<\/code><\/pre>\n<blockquote><p>v.event # \u66f4\u65b0\/\u4f5c\u6210\/\u7834\u68c4\u3092\u8fd4\u3057\u307e\u3059<br \/>\nv.whodunnit #it \u306f\u3053\u308c\u3092\u5b9f\u884c\u3057\u305f\u30e6\u30fc\u30b6\u30fc ID \u3092\u8fd4\u3057\u307e\u3059<br \/>\nv. \u88fd\u54c1\u3092\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u524d\u3068\u540c\u3058\u3088\u3046\u306b\u518d\u73fe\u3059\u308b<\/p><\/blockquote>\n<p>previous_version \u30e1\u30bd\u30c3\u30c9\u3068 next_version \u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u79fb\u52d5\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre><code>\u88fd\u54c1 = \u88fd\u54c1.\u524d\u306e\u30d0\u30fc\u30b8\u30e7\u30f3<\/code><\/pre>\n<blockquote><p>product = product.next_version #it \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u306a\u3044\u5834\u5408\u306f nil \u3092\u8fd4\u3057\u307e\u3059<\/p>\n<p>product.versions.last.whodunnit #it \u306f\u3001\u7279\u5b9a\u306e\u5909\u66f4\u3092\u884c\u3063\u305f\u30e6\u30fc\u30b6\u30fc\u3092\u8fd4\u3057\u307e\u3059<\/p><\/blockquote>\n<p>RailsCarma \u304c\u63d0\u4f9b\u3057\u3066\u3044\u308b <a href=\"https:\/\/www.railscarma.com\/ja\/\" target=\"_blank\" rel=\"noopener noreferrer\">Ruby on Rails\u958b\u767a\u30b5\u30fc\u30d3\u30b9<\/a> \u904e\u53bb 8 \u5e74\u9593\u306b\u308f\u305f\u308a\u3001\u5f53\u793e\u306e\u958b\u767a\u8005\u306f\u3042\u3089\u3086\u308b\u7a2e\u985e\u306e\u4f5c\u696d\u306b\u7cbe\u901a\u3057\u3066\u3044\u307e\u3059\u3002 <a href=\"https:\/\/www.railscarma.com\/ja\/\" target=\"_blank\" rel=\"noopener noreferrer\">Ruby on Rails \u306e Web \u958b\u767a<\/a> \u4ed5\u4e8b\u3084\u3042\u3089\u3086\u308b\u7a2e\u985e\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u51e6\u7406\u3002\u5f0a\u793e\u306e\u958b\u767a\u30b9\u30ad\u30eb\u3084\u5bfe\u5fdc\u53ef\u80fd\u306a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u77e5\u308a\u305f\u3044\u5834\u5408\u306f\u3001\u304a\u554f\u3044\u5408\u308f\u305b\u304f\u3060\u3055\u3044\u3002<\/p>\n  <div class=\"related-post slider\">\r\n        <div class=\"headline\">\u95a2\u9023\u8a18\u4e8b<\/div>\r\n    <div class=\"post-list owl-carousel\">\r\n\r\n            <div class=\"item\">\r\n            <div class=\"thumb post_thumb\">\r\n    <a  title=\"\u30ab\u30df\u30ca\u30ea\u30b8\u30a7\u30e0\" href=\"https:\/\/www.railscarma.com\/ja\/%e3%83%96%e3%83%ad%e3%82%b0\/%e6%8a%80%e8%a1%93%e8%ab%96%e6%96%87\/%e3%82%ab%e3%83%9f%e3%83%8a%e3%83%aa%e3%82%b8%e3%82%a7%e3%83%a0\/?related_post_from=37277\">\r\n\r\n      <img decoding=\"async\" width=\"800\" height=\"300\" 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post_thumb\">\r\n    <a  title=\"\u306a\u305c2026\u5e74\u306bRuby on Rails\u958b\u767a\u8005\u3092\u96c7\u3046\u306e\u304b\uff1f\" href=\"https:\/\/www.railscarma.com\/ja\/%e3%83%96%e3%83%ad%e3%82%b0\/%e3%83%ad%e3%83%bc\/why-to-hire-ruby-on-rails-developers\/?related_post_from=30627\">\r\n\r\n      <img decoding=\"async\" width=\"800\" height=\"300\" src=\"https:\/\/www.railscarma.com\/wp-content\/uploads\/2019\/01\/why-to-hire-ruby-on-rails-developers-in-2022.jpg\" class=\"attachment-full size-full wp-post-image\" alt=\"2022 \u5e74\u306b Ruby on Rails \u958b\u767a\u8005\u3092\u96c7\u7528\u3059\u308b\u7406\u7531\" srcset=\"https:\/\/www.railscarma.com\/wp-content\/uploads\/2019\/01\/why-to-hire-ruby-on-rails-developers-in-2022.jpg 800w, https:\/\/www.railscarma.com\/wp-content\/uploads\/2019\/01\/why-to-hire-ruby-on-rails-developers-in-2022-300x113.jpg 300w, https:\/\/www.railscarma.com\/wp-content\/uploads\/2019\/01\/why-to-hire-ruby-on-rails-developers-in-2022-768x288.jpg 768w\" 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\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba \u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u958b\u767a\u306b\u304a\u3051\u308b\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2 \u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306e\u91cd\u8981\u6027  <\/a>\r\n\r\n        <\/div>\r\n              <div class=\"item\">\r\n            <div class=\"thumb post_thumb\">\r\n    <a  title=\"Ruby IDE: Ruby on Rails \u958b\u767a\u306b\u6700\u9069\u306a IDE\" href=\"https:\/\/www.railscarma.com\/ja\/%e3%83%96%e3%83%ad%e3%82%b0\/%e3%83%ad%e3%83%bc\/ruby-ide-ruby-on-rails-%e9%96%8b%e7%99%ba%e3%81%ab%e6%9c%80%e9%81%a9%e3%81%aa%e3%82%a2%e3%82%a4%e3%83%87%e3%82%a2\/?related_post_from=36125\">\r\n\r\n      <img decoding=\"async\" width=\"800\" height=\"300\" src=\"https:\/\/www.railscarma.com\/wp-content\/uploads\/2022\/01\/BEST-IDES-FOR-RUBY-ON-RAILS-DEVELOPMENT.jpg\" class=\"attachment-full size-full wp-post-image\" alt=\"Ruby on Rails \u958b\u767a\u306b\u6700\u9069\u306a\u30a2\u30a4\u30c7\u30a2\" 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\u30c7\u30fc\u30bf\u306e\u4efb\u610f\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u623b\u3059\u3053\u3068\u304c\u3067\u304d\u3001\u30ec\u30b3\u30fc\u30c9\u304c\u7834\u68c4\u3055\u308c\u305f\u5f8c\u306b\u3059\u3079\u3066\u306e\u5909\u66f4\u3092\u5143\u306b\u623b\u3059\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u5b8c\u5168\u306b\u5fa9\u5143\u3057\u307e\u3059\u3002 gem &#039;paper_trail&#039; \u30d0\u30f3\u30c9\u30eb\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3092\u5b9f\u884c\u3057\u3066\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059 \u30d0\u30f3\u30c9\u30eb\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u5f8c\u3001\u30d0\u30fc\u30b8\u30e7\u30f3\u30c6\u30fc\u30d6\u30eb\u3092\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u8ffd\u52a0\u3059\u308b\u305f\u3081\u306b\u6b21\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3067\u304d\u307e\u3059 Bundle exec Rails Generate Paper_trail:install Bundle exec rake db:Migrate has_paper_trail \u30e1\u30bd\u30c3\u30c9\u3092\u30e2\u30c7\u30eb\u306b\u8ffd\u52a0\u3057\u307e\u3059\u2026<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/www.railscarma.com\/ja\/%e3%83%96%e3%83%ad%e3%82%b0\/generative-ai-development-with-ruby-on-rails\/\"> <span class=\"screen-reader-text\">Generative AI Development with Ruby on Rails<\/span> \u3082\u3063\u3068\u8aad\u3080 \"<\/a><\/p>","protected":false},"author":1,"featured_media":31830,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[384],"tags":[],"class_list":["post-25983","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technical-articles"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Track Changes To Your Model&#039;s Data with Paper Trail Gem - RailsCarma - Ruby on Rails Development Company specializing in 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