错误TypeError:在rails中使用Twilio响应无法将true转换为字符串

Question

我心里有个错误，根本不知道如何解决这个问题。我没有用大量的代码来解决这个问题，而是在问题之后添加了代码。

我正在使用Twilio生成自动电话信息，但是，我不知道问题是否与Twilio宝石有关。从我所做的研究来看，这常常与宝石不相容有关。请参阅下面安装了版本的的 see文件。您还可以看到发生错误的错误消息和webrick文件。最后，以下是破解的代码

def response
  Rails.logger.debug '+ response' if PHONE_DEBUG
  Rails.logger.debug '* @question.text = ' + @question.text if PHONE_DEBUG

  if (@question.text =~ /hash|\#/i) != nil
    finish_on_key = '#'
  else
    finish_on_key = ''
  end

  Twilio::TwiML::Response.new do |r|
    r.Say @question.text, voice: 'alice', language: 'en-AU'
    r.Gather finishOnKey: finish_on_key, timeout: PHONE_WAIT_TIME,
      action: NGROK + answers_path(@question.id) # Answer create
  end.to_xml
  Rails.logger.debug '- response' if PHONE_DEBUG
end

如果您查看一下错误消息文件，就可以在它爆炸之前从上面的代码中看到logger.debug消息。当我的rails应用程序打电话给我时，上面的代码会在我接电话时运行。它应该问我一个问题(但它从来没有)，然后在我回答之后，它会重定向到答案的路径。

韦布里克在这里失败了

body.each { |part|
  res.body << part
}

我对违规的变量运行logger.debug，发现res.body是字符串，part是布尔值，所以消息是有意义的。有人知道如何解决这个问题吗？

Gemfile

*source 'https://rubygems.org'

# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '4.1.8'
# Use sqlite3 as the database for Active Record
gem 'sqlite3'
# Use SCSS for stylesheets
gem 'sass-rails', '~> 4.0.3'
# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.0'
# Use CoffeeScript for .js.coffee assets and views
gem 'coffee-rails', '~> 4.0.0'
# See https://github.com/sstephenson/execjs#readme for more supported runtimes
# gem 'therubyracer',  platforms: :ruby

# Use jquery as the JavaScript library
gem 'jquery-rails'
# Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks
gem 'turbolinks'
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 2.0'
# bundle exec rake doc:rails generates the API under doc/api.
gem 'sdoc', '~> 0.4.0',          group: :doc

# Use ActiveModel has_secure_password
# gem 'bcrypt', '~> 3.1.7'

# Use unicorn as the app server
# gem 'unicorn'

# Use Capistrano for deployment
# gem 'capistrano-rails', group: :development

# Use debugger
# gem 'debugger', group: [:development, :test]

# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
gem 'tzinfo-data', platforms: [:mingw, :mswin]

# Coffee script 1.9.0 doesn''t play well with Windows.  SMH
gem 'coffee-script-source', '1.8.0'

# Tabbed Navigation goodies
gem 'tabulous'

# SMS and phone call support
gem 'twilio-ruby'

# Validate phone numbers easily
gem 'phony_rails'

# Secure login
gem 'devise'

group :development, :teachinator, :careinator do
  gem 'rails-erd'     # ERD - Entity-Relationship Diagrams for documentation
  gem 'annotator'     # Annotator - Adds comments to Model files to from DB info
  gem 'faker', '1.7.2'# Helps generate db:seed data
end*

版本

*d:\svn_branch\rails\jobinator>bundle install
Using rake 11.3.0
Using i18n 0.7.0
Using json 1.8.3
Using minitest 5.9.1
Using thread_safe 0.3.5
Using builder 3.2.2
Using erubis 2.7.0
Using rack 1.5.5
Using mime-types 2.6.1
Using arel 5.0.1.20140414130214
Using bcrypt 3.1.11
Using choice 0.2.0
Using coffee-script-source 1.8.0
Using execjs 2.5.2
Using thor 0.19.1
Using colored 1.2
Using currencies 0.4.2
Using orm_adapter 0.5.0
Using hike 1.2.3
Using multi_json 1.11.2
Using jwt 1.5.6
Using phony 2.2.14
Using bundler 1.13.6
Using tilt 1.4.1
Using ruby-graphviz 1.2.2
Using sass 3.2.19
Using sqlite3 1.3.10
Using faker 1.7.2
Using rdoc 4.2.0
Using tzinfo 1.2.2
Using rack-test 0.6.3
Using warden 1.2.6
Using mail 2.6.3
Using coffee-script 2.4.1
Using uglifier 2.7.1
Using countries 0.9.3
Using twilio-ruby 4.13.0
Using sprockets 2.12.4
Using sdoc 0.4.1
Using activesupport 4.1.8
Using tzinfo-data 1.2015.6
Using actionview 4.1.8
Using activemodel 4.1.8
Using jbuilder 2.3.1
Using phony_rails 0.6.1
Using actionpack 4.1.8
Using activerecord 4.1.8
Using actionmailer 4.1.8
Using railties 4.1.8
Using sprockets-rails 2.3.2
Using annotator 0.0.10
Using rails-erd 1.5.0
Using coffee-rails 4.0.1
Using responders 1.1.2
Using jquery-rails 3.1.3
Using rails 4.1.8
Using sass-rails 4.0.5
Using turbolinks 2.5.3
Using devise 3.5.10
Using tabulous 2.1.3
Bundle complete! 18 Gemfile dependencies, 60 gems now installed.
Use `bundle show [gemname]` to see where a bundled gem is installed.

d:\svn_branch\rails\jobinator>*

错误消息

******** CreateResponse.for
+ response
* @question.text = Please press any key to continue.
- response
Completed 200 OK in 143ms (Views: 0.0ms | ActiveRecord: 105.0ms)
[2017-03-06 11:52:37] ERROR TypeError: can't convert true into String
        C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.5.5/lib/rack/handler/webrick.rb:73:in `block in service'
        C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.5.5/lib/rack/body_proxy.rb:31:in `each'
        C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.5.5/lib/rack/body_proxy.rb:31:in `each'
        C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.5.5/lib/rack/body_proxy.rb:31:in `each'
        C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.5.5/lib/rack/body_proxy.rb:31:in `each'
        C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.5.5/lib/rack/body_proxy.rb:31:in `each'
        C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.5.5/lib/rack/body_proxy.rb:31:in `each'
        C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.5.5/lib/rack/body_proxy.rb:31:in `each'
        C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.5.5/lib/rack/body_proxy.rb:31:in `each'
        C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.5.5/lib/rack/handler/webrick.rb:72:in `service'
        C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/webrick/httpserver.rb:138:in `service'
        C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/webrick/httpserver.rb:94:in `run'
        C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/webrick/server.rb:191:in `block in start_thread'

韦布里克

*require 'webrick'
require 'stringio'
require 'rack/content_length'

module Rack
  module Handler
    class WEBrick < ::WEBrick::HTTPServlet::AbstractServlet
      def self.run(app, options={})
        options[:BindAddress] = options.delete(:Host) if options[:Host]
        options[:Port] ||= 8080
        @server = ::WEBrick::HTTPServer.new(options)
        @server.mount "/", Rack::Handler::WEBrick, app
        yield @server  if block_given?
        @server.start
      end

      def self.valid_options
        {
          "Host=HOST" => "Hostname to listen on (default: localhost)",
          "Port=PORT" => "Port to listen on (default: 8080)",
        }
      end

      def self.shutdown
        @server.shutdown
        @server = nil
      end

      def initialize(server, app)
        super server
        @app = app
      end

      def service(req, res)
        env = req.meta_vars
        env.delete_if { |k, v| v.nil? }

        rack_input = StringIO.new(req.body.to_s)
        rack_input.set_encoding(Encoding::BINARY) if rack_input.respond_to?(:set_encoding)

        env.update({"rack.version" => Rack::VERSION,
                     "rack.input" => rack_input,
                     "rack.errors" => $stderr,

                     "rack.multithread" => true,
                     "rack.multiprocess" => false,
                     "rack.run_once" => false,

                     "rack.url_scheme" => ["yes", "on", "1"].include?(ENV["HTTPS"]) ? "https" : "http"
                   })

        env["HTTP_VERSION"] ||= env["SERVER_PROTOCOL"]
        env["QUERY_STRING"] ||= ""
        unless env["PATH_INFO"] == ""
          path, n = req.request_uri.path, env["SCRIPT_NAME"].length
          env["PATH_INFO"] = path[n, path.length-n]
        end
        env["REQUEST_PATH"] ||= [env["SCRIPT_NAME"], env["PATH_INFO"]].join

        status, headers, body = @app.call(env)
        begin
          res.status = status.to_i
          headers.each { |k, vs|
            if k.downcase == "set-cookie"
              res.cookies.concat vs.split("\n")
            else
              # Since WEBrick won't accept repeated headers,
              # merge the values per RFC 1945 section 4.2.
              res[k] = vs.split("\n").join(", ")
            end
          }
          body.each { |part|
            res.body << part
          }
        ensure
          body.close  if body.respond_to? :close
        end
      end
    end
  end
end

Answer 1

通过检查错误行机架上的源代码，它似乎试图将响应附加到正文字符串。在您的response代码中，最后一句是布尔方法：

def response
  # ...

  Twilio::TwiML::Response.new do |r|
    # ...
  end.to_xml
  Rails.logger.debug '- response' if PHONE_DEBUG
end

不是发送Twilio，而是返回Rails.logger.debug结果，即true。

将其更改为如下所示：

def response
  Rails.logger.debug '+ response' if PHONE_DEBUG
  Rails.logger.debug '* @question.text = ' + @question.text if PHONE_DEBUG

  if (@question.text =~ /hash|\#/i) != nil
    finish_on_key = '#'
  else
    finish_on_key = ''
  end

  # -- Store it in a variable --
  xml = Twilio::TwiML::Response.new do |r|
    r.Say @question.text, voice: 'alice', language: 'en-AU'
    r.Gather finishOnKey: finish_on_key, timeout: PHONE_WAIT_TIME,
      action: NGROK + answers_path(@question.id) # Answer create
  end.to_xml
  Rails.logger.debug '- response' if PHONE_DEBUG

  # -- Return the stored xml --
  xml
end