Question

我一直在将我的rails应用程序从3.2.8升级到4.2.4并且我有大约98％的应用程序正在运行，但我遇到了与API有关的主要障碍。我继续得到一个奇怪的错误，我无法找到解决方案。

如果KnowledgeChecks中的所有代码＆gt;状态被注释掉了，我没有收到错误，但如果我有最轻微的代码，我会得到一个未定义的方法。此外，如果我在控制台中运行相同的代码（在API控制器之外），我不会收到任何错误。

这就是我目前所拥有的：

API应用程序控制器：

class Api::ApplicationController < ActionController::Metal
  include AbstractController::Rendering
  include ActionView::Layouts
  include ActionController::MimeResponds
  include ActionController::RespondWith
  include AbstractController::Callbacks
  include ActionController::Helpers
  include ActionController::Head
  # include ActiveModel::AttributeMethods

  append_view_path "#{Rails.root}/app/views"

  respond_to :js

  skip_before_filter :set_guard
  before_filter      :require_api_conversation_token!

  def require_api_conversation_token!
    @user = User.where(:api_token => params[:api_token]).first
    head :unauthorized unless @user
  end

end

问题控制器（创建工作，状态失败）

class Api::KnowledgeChecksController < Api::ApplicationController

  def create
    @objective = Objective.find_by_id params[:id]
    if @objective && @user.courses.include?(@objective.course)
      KnowledgeCheck.create!(
        :objective_id => @objective.id,
        :user_id      => @user.id,
        :status       => "in progress"
      )
      head :ok
    else
      head :unprocessable_entity
    end
  end

  def status
    kchk = @user.knowledge_checks.where(:objective_id => params[:id])

    if kchk.length > 0 && params[:status] && params[:score]
      kchk.last.status = params[:status]
      kchk.last.score  = params[:score]
      kchk.last.save
      head :ok
    else
      head :unprocessable_entity
    end
  end

end

日志中的结果：

Started POST "/api/knowledge_checks/status/?api_token=TOKEN&id=ID&status=STATUS&score=SCORE"

Unexpected error while processing request: undefined method `to_i' for true:TrueClass
    /Users/ehay/.rvm/gems/ruby-2.2.3/gems/rack-1.6.4/lib/rack/content_length.rb:18:in `call'
    /Users/ehay/.rvm/gems/ruby-2.2.3/gems/thin-1.6.4/lib/thin/connection.rb:86:in `block in pre_process'
    /Users/ehay/.rvm/gems/ruby-2.2.3/gems/thin-1.6.4/lib/thin/connection.rb:84:in `catch'
    /Users/ehay/.rvm/gems/ruby-2.2.3/gems/thin-1.6.4/lib/thin/connection.rb:84:in `pre_process'
    /Users/ehay/.rvm/gems/ruby-2.2.3/gems/thin-1.6.4/lib/thin/connection.rb:53:in `process'
    /Users/ehay/.rvm/gems/ruby-2.2.3/gems/thin-1.6.4/lib/thin/connection.rb:39:in `receive_data'
    /Users/ehay/.rvm/gems/ruby-2.2.3/gems/eventmachine-1.0.8/lib/eventmachine.rb:193:in `run_machine'
    /Users/ehay/.rvm/gems/ruby-2.2.3/gems/eventmachine-1.0.8/lib/eventmachine.rb:193:in `run'
    /Users/ehay/.rvm/gems/ruby-2.2.3/gems/thin-1.6.4/lib/thin/backends/base.rb:73:in `start'
    /Users/ehay/.rvm/gems/ruby-2.2.3/gems/thin-1.6.4/lib/thin/server.rb:162:in `start'
    /Users/ehay/.rvm/gems/ruby-2.2.3/gems/rack-1.6.4/lib/rack/handler/thin.rb:19:in `run'
    /Users/ehay/.rvm/gems/ruby-2.2.3/gems/rack-1.6.4/lib/rack/server.rb:286:in `start'
    /Users/ehay/.rvm/gems/ruby-2.2.3/gems/railties-4.2.4/lib/rails/commands/server.rb:80:in `start'
    /Users/ehay/.rvm/gems/ruby-2.2.3/gems/railties-4.2.4/lib/rails/commands/commands_tasks.rb:80:in `block in server'
    /Users/ehay/.rvm/gems/ruby-2.2.3/gems/railties-4.2.4/lib/rails/commands/commands_tasks.rb:75:in `tap'
    /Users/ehay/.rvm/gems/ruby-2.2.3/gems/railties-4.2.4/lib/rails/commands/commands_tasks.rb:75:in `server'
    /Users/ehay/.rvm/gems/ruby-2.2.3/gems/railties-4.2.4/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
    /Users/ehay/.rvm/gems/ruby-2.2.3/gems/railties-4.2.4/lib/rails/commands.rb:17:in `<top (required)>'
    bin/rails:4:in `require'
    bin/rails:4:in `<main>'

非常感谢任何帮助。

Answer 1

这真的很愚蠢。事后看来，我不确定为什么代码在Rails 3.2中有效。

基本上，＆＃34;状态＆＃34;是ActionController :: Metal的辅助方法。如果我在状态调用中添加了任何内容，则rails认为我正在尝试将其与帮助程序一起使用。更改控制器中方法的名称修复了我的问题。

http://api.rubyonrails.org/classes/ActionController/Metal.html

Rails 4.2.4 Metal API未定义方法`to_i'

1 个答案: