papertrail「版本」不存在

添加了paper_trail gem。

請注意，我已經使用該寶石，我從來沒有遇到過問題，但這次我收到一個錯誤，我找不到原因。

在我的模型：

class User < ActiveRecord::Base 
    has_paper_trail :versions => :paper_trail_versions 
    ... 
end

錯誤：

User Exists (0.6ms) SELECT 1 AS one FROM "users" WHERE ("users"."pseudo" = 'joel' AND "users"."id" != 21) LIMIT 1 
PG::Error: ERROR: relation "versions" does not exist 
LINE 5:    WHERE a.attrelid = '"versions"'::regclass 
             ^
:    SELECT a.attname, format_type(a.atttypid, a.atttypmod), 
        pg_get_expr(d.adbin, d.adrelid), a.attnotnull, a.atttypid, a.atttypmod 
       FROM pg_attribute a LEFT JOIN pg_attrdef d 
       ON a.attrelid = d.adrelid AND a.attnum = d.adnum 
      WHERE a.attrelid = '"versions"'::regclass 
       AND a.attnum > 0 AND NOT a.attisdropped 
      ORDER BY a.attnum 

    (0.1ms) ROLLBACK 
Completed 500 Internal Server Error in 28ms 

ActiveRecord::StatementInvalid (PG::Error: ERROR: relation "versions" does not exist 
LINE 5:    WHERE a.attrelid = '"versions"'::regclass 
             ^
:    SELECT a.attname, format_type(a.atttypid, a.atttypmod), 
        pg_get_expr(d.adbin, d.adrelid), a.attnotnull, a.atttypid, a.atttypmod 
       FROM pg_attribute a LEFT JOIN pg_attrdef d 
       ON a.attrelid = d.adrelid AND a.attnum = d.adnum 
      WHERE a.attrelid = '"versions"'::regclass 
       AND a.attnum > 0 AND NOT a.attisdropped 
      ORDER BY a.attnum 
)

如何解決這個任何線索？

來源

2013-07-16 zabumba

我有同樣的錯誤：http://stackoverflow.com/questions/21714198/undefined-method-versions-for-page-translations –

你有沒有按照安裝說明操作：

安裝PaperTrail爲通過您的Gemfile寶石：

寶石 'paper_trail'， '〜> 2'

生成遷移，這將增加一個版本表到你的數據庫。

bundle exec rails generate paper_trail:install

運行遷移。

bundle exec rake db:migrate

將has_paper_trail添加到要跟蹤的模型。

從https://github.com/airblade/paper_trail

來源

2013-07-16 22:59:34

的人，我不認爲我沒有做那。我完全錯過了那一段。感謝您的回覆。這釘了它 – zabumba

papertrail「版本」不存在

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