从 Rails 4.0 切换到 Rails 4.1 时出现此错误:
activerecord-4.1.8/lib/active_record/dynamic_matchers.rb:26:in `method_missing': undefined method `whitelist_attributes=' for ActiveRecord::Base:Class (NoMethodError)
我没有在我的应用程序的任何地方使用 attr_accessible 或 attr_protected 所以我想知道为什么我有问题。
当迁移到 Rails 4.0 时，我已经安装了我的 application.rb:
配置/应用程序.rb:
config.active_record.whitelist_attributes = false
完整的错误日志是:
/home/mathieu/.rvm/gems/ruby-2.0.0-p451@rails3tutorial2ndEd/gems/activerecord-4.1.8/lib/active_record/dynamic_matchers.rb:26:in `method_missing': undefined method `whitelist_attributes=' for ActiveRecord::Base:Class (NoMethodError)
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@rails3tutorial2ndEd/gems/activerecord-4.1.8/lib/active_record/railtie.rb:110:in `block (3 levels) in <class:Railtie>'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@rails3tutorial2ndEd/gems/activerecord-4.1.8/lib/active_record/railtie.rb:109:in `each'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@rails3tutorial2ndEd/gems/activerecord-4.1.8/lib/active_record/railtie.rb:109:in `block (2 levels) in <class:Railtie>'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@rails3tutorial2ndEd/gems/activesupport-4.1.8/lib/active_support/lazy_load_hooks.rb:38:in `instance_eval'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@rails3tutorial2ndEd/gems/activesupport-4.1.8/lib/active_support/lazy_load_hooks.rb:38:in `execute_hook'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@rails3tutorial2ndEd/gems/activesupport-4.1.8/lib/active_support/lazy_load_hooks.rb:28:in `block in on_load'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@rails3tutorial2ndEd/gems/activesupport-4.1.8/lib/active_support/lazy_load_hooks.rb:27:in `each'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@rails3tutorial2ndEd/gems/activesupport-4.1.8/lib/active_support/lazy_load_hooks.rb:27:in `on_load'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@rails3tutorial2ndEd/gems/activerecord-4.1.8/lib/active_record/railtie.rb:108:in `block in <class:Railtie>'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@rails3tutorial2ndEd/gems/railties-4.1.8/lib/rails/initializable.rb:30:in `instance_exec'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@rails3tutorial2ndEd/gems/railties-4.1.8/lib/rails/initializable.rb:30:in `run'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@rails3tutorial2ndEd/gems/railties-4.1.8/lib/rails/initializable.rb:55:in `block in run_initializers'
from /home/mathieu/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/tsort.rb:150:in `block in tsort_each'
from /home/mathieu/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/tsort.rb:183:in `block (2 levels) in each_strongly_connected_component'
from /home/mathieu/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/tsort.rb:219:in `each_strongly_connected_component_from'
from /home/mathieu/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/tsort.rb:182:in `block in each_strongly_connected_component'
from /home/mathieu/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/tsort.rb:180:in `each'
from /home/mathieu/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/tsort.rb:180:in `each_strongly_connected_component'
from /home/mathieu/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/tsort.rb:148:in `tsort_each'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@rails3tutorial2ndEd/gems/railties-4.1.8/lib/rails/initializable.rb:54:in `run_initializers'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@rails3tutorial2ndEd/gems/railties-4.1.8/lib/rails/application.rb:300:in `initialize!'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@rails3tutorial2ndEd/gems/railties-4.1.8/lib/rails/railtie.rb:194:in `public_send'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@rails3tutorial2ndEd/gems/railties-4.1.8/lib/rails/railtie.rb:194:in `method_missing'
from /home/mathieu/rails_projects/app/config/environment.rb:5:in `<top (required)>'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@rails3tutorial2ndEd/gems/activesupport-4.1.8/lib/active_support/dependencies.rb:247:in `require'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@rails3tutorial2ndEd/gems/activesupport-4.1.8/lib/active_support/dependencies.rb:247:in `block in require'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@rails3tutorial2ndEd/gems/activesupport-4.1.8/lib/active_support/dependencies.rb:232:in `load_dependency'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@rails3tutorial2ndEd/gems/activesupport-4.1.8/lib/active_support/dependencies.rb:247:in `require'
from /home/mathieu/rails_projects/_app/config.ru:3:in `block in <main>'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@global/gems/rack-1.5.2/lib/rack/builder.rb:55:in `instance_eval'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@global/gems/rack-1.5.2/lib/rack/builder.rb:55:in `initialize'
from /home/mathieu/rails_projects/app/config.ru:in `new'
from /home/mathieu/rails_projects/app/config.ru:in `<main>'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@global/gems/rack-1.5.2/lib/rack/builder.rb:49:in `eval'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@global/gems/rack-1.5.2/lib/rack/builder.rb:49:in `new_from_string'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@global/gems/rack-1.5.2/lib/rack/builder.rb:40:in `parse_file'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@global/gems/rack-1.5.2/lib/rack/server.rb:277:in `build_app_and_options_from_config'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@global/gems/rack-1.5.2/lib/rack/server.rb:199:in `app'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@rails3tutorial2ndEd/gems/railties-4.1.8/lib/rails/commands/server.rb:50:in `app'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@global/gems/rack-1.5.2/lib/rack/server.rb:314:in `wrapped_app'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@rails3tutorial2ndEd/gems/railties-4.1.8/lib/rails/commands/server.rb:130:in `log_to_stdout'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@rails3tutorial2ndEd/gems/railties-4.1.8/lib/rails/commands/server.rb:67:in `start'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@rails3tutorial2ndEd/gems/railties-4.1.8/lib/rails/commands/commands_tasks.rb:81:in `block in server'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@rails3tutorial2ndEd/gems/railties-4.1.8/lib/rails/commands/commands_tasks.rb:76:in `tap'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@rails3tutorial2ndEd/gems/railties-4.1.8/lib/rails/commands/commands_tasks.rb:76:in `server'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@rails3tutorial2ndEd/gems/railties-4.1.8/lib/rails/commands/commands_tasks.rb:40:in `run_command!'
from /home/mathieu/.rvm/gems/ruby-2.0.0-p451@rails3tutorial2ndEd/gems/railties-4.1.8/lib/rails/commands.rb:17:in `<top (required)>'
from bin/rails:4:in `require'
from bin/rails:4:in `<main>'
我在这里真的迷路了，因为大多数有与我的错误相关的人建议使用 gem 'protected_attributes但我不想使用它，因为我没有任何attr_accessiblenorattr_protected`。
知道这个错误是从哪里来的吗？
最佳答案
您可以安全地删除 config.active_record.whitelist_attributes = false
来自您的应用配置文件。
并删除模型类中的所有 white_list_attributes。
干杯，
关于ruby-on-rails - 切换到 Rails 4.1 时出现错误 - `method_missing':ActiveRecord::Base:Class (NoMethodError) 的未定义方法 `whitelist_attributes='，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/27556631/
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