Ruby on Rails中的Geokit，acts_as_mappable的问题
我查看了相关问题列表，但我的问题似乎没有列出，因此它是：
基本上我正在尝试在Ruby on Rails环境中使用Geokit，我不确定我是否正确安装它，我已将它包含在environment.rb中（并完成了rake db：install）我现在正在尝试以下：
require 'active_record' require 'geokit' class Store < ActiveRecord::Base acts_as_mappable end 不幸的是，当我尝试运行它并查看它是否正常时，我收到以下错误：
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/base.rb:1959:in `method_missing': undefined local variable or method `acts_as_mappable' for # (NameError) from C:/Users/Erika/Documents/Visual Studio 2008/Projects/StoreLocator/StoreLocator/app/models/store.rb:5
我正在为Visual Studio 2008运行Ruby in Steel，我不知道我做错了什么，因为我发现所有的在线教程都比较旧，并且适用于我。 任何帮助将不胜感激。 谢谢！
编辑:(根据Ben的请求添加）以下是我的environment.rb的样子
# Be sure to restart your server when you modify this file # Specifies gem version of Rails to use when vendor/rails is not present RAILS_GEM_VERSION = '2.3.4' unless defined? RAILS_GEM_VERSION # Bootstrap the Rails environment, frameworks, and default configuration require File.join(File.dirname(__FILE__), 'boot') Rails::Initializer.run do |config| # Settings in config/environments/* take precedence over those specified here. # Application configuration should go into files in config/initializers # -- all .rb files in that directory are automatically loaded. # Add additional load paths for your own custom dirs # config.load_paths += %W( #{RAILS_ROOT}/extras ) # Specify gems that this application depends on and have them installed with rake gems:install # config.gem "bj" # config.gem "hpricot", :version => '0.6', :source => "http://code.whytheluckystiff.net" # config.gem "sqlite3-ruby", :lib => "sqlite3" # config.gem "aws-s3", :lib => "aws/s3" config.gem "geokit" config.gem "ym4r" # Only load the plugins named here, in the order given (default is alphabetical). # :all can be used as a placeholder for all plugins not explicitly named # config.plugins = [ :exception_notification, :ssl_requirement, :all ] # Skip frameworks you're not going to use. To use Rails without a database, # you must remove the Active Record framework. # config.frameworks -= [ :active_record, :active_resource, :action_mailer ] # Activate observers that should always be running # config.active_record.observers = :cacher, :garbage_collector, :forum_observer # Set Time.zone default to the specified zone and make Active Record auto-convert to this zone. # Run "rake -D time" for a list of tasks for finding time zone names. config.time_zone = 'UTC' # The default locale is :en and all translations from config/locales/*.rb,yml are auto loaded. # config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}')] # config.i18n.default_locale = :de end # These defaults are used in GeoKit::Mappable.distance_to and in acts_as_mappable GeoKit::default_units = :kms GeoKit::default_formula = :sphere # This is the timeout value in seconds to be used for calls to the geocoder web # services. For no timeout at all, comment out the setting. The timeout unit # is in seconds. #GeoKit::Geocoders::timeout = 3 # These settings are used if web service calls must be routed through a proxy. # These setting can be nil if not needed, otherwise, addr and port must be # filled in at a minimum. If the proxy requires authentication, the username # and password can be provided as well. GeoKit::Geocoders::proxy_addr = nil GeoKit::Geocoders::proxy_port = nil GeoKit::Geocoders::proxy_user = nil GeoKit::Geocoders::proxy_pass = nil # This is your yahoo application key for the Yahoo Geocoder. GeoKit::Geocoders::yahoo = 'REPLACE_WITH_YOUR_YAHOO_KEY' # This is your Google Maps geocoder key. GeoKit::Geocoders::google = 'apikey' # This is your username and password for geocoder.us. # To use the free service, the value can be set to nil or false. For # usage tied to an account, the value should be set to username:password. GeoKit::Geocoders::geocoder_us = false # This is your authorization key for geocoder.ca. # To use the free service, the value can be set to nil or false. For # usage tied to an account, set the value to the key obtained from # Geocoder.ca. GeoKit::Geocoders::geocoder_ca = false # This is the order in which the geocoders are called in a failover scenario # If you only want to use a single geocoder, put a single symbol in the array. # Valid symbols are :google, :yahoo, :us, and :ca. # Be aware that there are Terms of Use restrictions on how you can use the # various geocoders. Make sure you read up on relevant Terms of Use for each # geocoder you are going to use. GeoKit::Geocoders::provider_order = [:google]
acts_as_mappable是geokit-rails的一部分。 你需要安装geokit-rails插件。
script/plugin install git://github.com/andre/geokit-rails.git
要检查插件是否已正确安装，请查看Rails应用程序的vendor / plugins目录下的内容。 它应该有一个geokit-rails子目录。 它，你会找到所有的插件文件，其他子目录，包括文件acts_as_mappable.rb （在vendor\plugins\geokit-rails\lib\geokit-rails ）。
如果一切似乎"require geokit"正确安装，请尝试将"require geokit"添加到插件根文件夹（ vendor\plugins\geokit-rails ）中init.rb文件的顶部。
进行修改后，请务必重新启动应用服务器。
您使用什么方法来包含geokit库？ 这个插件？ gem？ gem是否已拆封到供应商处？ 你的environment.rb是什么样的？
编辑：我打算留下这个作为对这个问题的评论 – 原谅我。