enum_column gem問題

你好，我需要枚舉列在我的表中，所以我試圖使用這個寶石。但是，當我嘗試進行遷移時，我有這個，不知道該怎麼做。enum_column gem問題

rake db:migrate --trace 
rake aborted! 
undefined method `type_to_sql' for module `ActiveRecord::ConnectionAdapters::SchemaStatements' 
/var/lib/gems/1.8/gems/enum_column-0.1.6/lib/enum_column/schema_statements.rb:4 
/var/lib/gems/1.8/gems/enum_column-0.1.6/lib/enum_column.rb:7:in `require' 
/var/lib/gems/1.8/gems/enum_column-0.1.6/lib/enum_column.rb:7 
/var/lib/gems/1.8/gems/bundler-1.0.15/lib/bundler/runtime.rb:68:in `require' 
/var/lib/gems/1.8/gems/bundler-1.0.15/lib/bundler/runtime.rb:68:in `require' 
/var/lib/gems/1.8/gems/bundler-1.0.15/lib/bundler/runtime.rb:66:in `each' 
/var/lib/gems/1.8/gems/bundler-1.0.15/lib/bundler/runtime.rb:66:in `require' 
/var/lib/gems/1.8/gems/bundler-1.0.15/lib/bundler/runtime.rb:55:in `each' 
/var/lib/gems/1.8/gems/bundler-1.0.15/lib/bundler/runtime.rb:55:in `require' 
/var/lib/gems/1.8/gems/bundler-1.0.15/lib/bundler.rb:120:in `require' 
/var/www/my_app/config/application.rb:7 
/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require' 
/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `require' 
/var/www/my_app/Rakefile:4 
/var/lib/gems/1.8/gems/rake-0.9.2/lib/rake/rake_module.rb:25:in `load' 
/var/lib/gems/1.8/gems/rake-0.9.2/lib/rake/rake_module.rb:25:in `load_rakefile' 
/var/lib/gems/1.8/gems/rake-0.9.2/lib/rake/application.rb:495:in `raw_load_rakefile' 
/var/lib/gems/1.8/gems/rake-0.9.2/lib/rake/application.rb:78:in `load_rakefile' 
/var/lib/gems/1.8/gems/rake-0.9.2/lib/rake/application.rb:129:in `standard_exception_handling' 
/var/lib/gems/1.8/gems/rake-0.9.2/lib/rake/application.rb:77:in `load_rakefile' 
/var/lib/gems/1.8/gems/rake-0.9.2/lib/rake/application.rb:61:in `run' 
/var/lib/gems/1.8/gems/rake-0.9.2/lib/rake/application.rb:129:in `standard_exception_handling' 
/var/lib/gems/1.8/gems/rake-0.9.2/lib/rake/application.rb:59:in `run' 
/var/lib/gems/1.8/gems/rake-0.9.2/bin/rake:32 
/var/lib/gems/1.8/bin/rake:19:in `load' 
/var/lib/gems/1.8/bin/rake:19

版本

rails -v 
Rails 3.0.9 
ruby -v 
ruby 1.8.7 (2010-08-16 patchlevel 302) [i486-linux]

來源

2011-06-20 Ximik

問題是這個寶石不適用於軌道3。 – Ximik

這是一個老問題（近2年），但自從我來到這裏尋找類似的東西，我覺得別人可以有這樣的問題，因爲它沒有記錄上寶石。

由於您沒有說明如何爲您的遷移，我會給出一個通用的解決方案：

就用這個在遷移應該工作：

def up 
    change_column :table, :sex, :enum, :limit => ['Male','Female','Unknown'], :default => 'Unknown' 
end

這應該工作！

來源

2013-03-15 18:23:29 JuanBoca

enum_column gem問題

回答

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