从LinkedIn成功验证后，我转发到此控制器并获得
未初始化的常量UsersController :: LinkedIn
这是验证成功后控制的位置。
class UsersController < ApplicationController
def index
# get your api keys at https://www.linkedin.com/secure/developer
client = LinkedIn::Client.new("ddddd", "eeeee")
request_token = client.request_token(:oauth_callback =>"http://localhost:3000/users/callback")
session[:rtoken] = request_token.token
session[:rsecret] = request_token.secret
redirect_to client.request_token.authorize_url
end
def callback
client = LinkedIn::Client.new("dddd", "eeeeee")
if session[:atoken].nil?
pin = params[:oauth_verifier]
atoken, asecret = client.authorize_from_request(session[:rtoken], session[:rsecret], pin)
session[:atoken] = atoken
session[:asecret] = asecret
else
client.authorize_from_access(session[:atoken], session[:asecret])
end
@profile = client.profile
@connections = client.connections
end
end
完整追踪：
pp/controllers/users_controller.rb:4:in `index'
actionpack (3.2.1) lib/action_controller/metal/implicit_render.rb:4:in `send_action'
actionpack (3.2.1) lib/action_controller/metal/implicit_render.rb:4:in `send_action'
actionpack (3.2.1) lib/abstract_controller/base.rb:167:in `process_action'
actionpack (3.2.1) lib/action_controller/metal/rendering.rb:10:in `process_action'
actionpack (3.2.1) lib/abstract_controller/callbacks.rb:18:in `process_action'
activesupport (3.2.1) lib/active_support/callbacks.rb:414:in `_run__434435962__process_action__199225275__callbacks'
activesupport (3.2.1) lib/active_support/callbacks.rb:405:in `send'
activesupport (3.2.1) lib/active_support/callbacks.rb:405:in `__run_callback'
activesupport (3.2.1) lib/active_support/callbacks.rb:385:in `_run_process_action_callbacks'
activesupport (3.2.1) lib/active_support/callbacks.rb:81:in `send'
activesupport (3.2.1) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (3.2.1) lib/abstract_controller/callbacks.rb:17:in `process_action'
actionpack (3.2.1) lib/action_controller/metal/rescue.rb:29:in `process_action'
actionpack (3.2.1) lib/action_controller/metal/instrumentation.rb:30:in `process_action'
activesupport (3.2.1) lib/active_support/notifications.rb:123:in `instrument'
activesupport (3.2.1) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
activesupport (3.2.1) lib/active_support/notifications.rb:123:in `instrument'
actionpack (3.2.1) lib/action_controller/metal/instrumentation.rb:29:in `process_action'
actionpack (3.2.1) lib/action_controller/metal/params_wrapper.rb:205:in `process_action'
activerecord (3.2.1) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
actionpack (3.2.1) lib/abstract_controller/base.rb:121:in `process'
actionpack (3.2.1) lib/abstract_controller/rendering.rb:45:in `process'
actionpack (3.2.1) lib/action_controller/metal.rb:203:in `dispatch'
actionpack (3.2.1) lib/action_controller/metal/rack_delegation.rb:14:in `dispatch'
actionpack (3.2.1) lib/action_controller/metal.rb:246:in `action'
actionpack (3.2.1) lib/action_dispatch/routing/route_set.rb:66:in `call'
actionpack (3.2.1) lib/action_dispatch/routing/route_set.rb:66:in `dispatch'
actionpack (3.2.1) lib/action_dispatch/routing/route_set.rb:30:in `call'
journey (1.0.3) lib/journey/router.rb:68:in `call'
journey (1.0.3) lib/journey/router.rb:56:in `each'
journey (1.0.3) lib/journey/router.rb:56:in `call'
actionpack (3.2.1) lib/action_dispatch/routing/route_set.rb:589:in `call'
omniauth (1.0.3) lib/omniauth/strategy.rb:168:in `call!'
omniauth (1.0.3) lib/omniauth/strategy.rb:148:in `call'
omniauth (1.0.3) lib/omniauth/builder.rb:42:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/best_standards_support.rb:17:in `call'
rack (1.4.1) lib/rack/etag.rb:23:in `call'
rack (1.4.1) lib/rack/conditionalget.rb:25:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/head.rb:14:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/params_parser.rb:21:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/flash.rb:242:in `call'
rack (1.4.1) lib/rack/session/abstract/id.rb:205:in `context'
rack (1.4.1) lib/rack/session/abstract/id.rb:200:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/cookies.rb:338:in `call'
activerecord (3.2.1) lib/active_record/query_cache.rb:64:in `call'
activerecord (3.2.1) lib/active_record/connection_adapters/abstract/connection_pool.rb:443:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/callbacks.rb:28:in `call'
activesupport (3.2.1) lib/active_support/callbacks.rb:405:in `_run__397314981__call__4__callbacks'
activesupport (3.2.1) lib/active_support/callbacks.rb:405:in `send'
activesupport (3.2.1) lib/active_support/callbacks.rb:405:in `__run_callback'
activesupport (3.2.1) lib/active_support/callbacks.rb:385:in `_run_call_callbacks'
activesupport (3.2.1) lib/active_support/callbacks.rb:81:in `send'
activesupport (3.2.1) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (3.2.1) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/reloader.rb:65:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/remote_ip.rb:31:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/debug_exceptions.rb:16:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/show_exceptions.rb:56:in `call'
railties (3.2.1) lib/rails/rack/logger.rb:26:in `call_app'
railties (3.2.1) lib/rails/rack/logger.rb:16:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/request_id.rb:22:in `call'
rack (1.4.1) lib/rack/methodoverride.rb:21:in `call'
rack (1.4.1) lib/rack/runtime.rb:17:in `call'
activesupport (3.2.1) lib/active_support/cache/strategy/local_cache.rb:72:in `call'
rack (1.4.1) lib/rack/lock.rb:15:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/static.rb:53:in `call'
railties (3.2.1) lib/rails/engine.rb:479:in `call'
railties (3.2.1) lib/rails/application.rb:220:in `call'
rack (1.4.1) lib/rack/content_length.rb:14:in `call'
railties (3.2.1) lib/rails/rack/log_tailer.rb:14:in `call'
rack (1.4.1) lib/rack/handler/webrick.rb:59:in `service'
C:/RailsInstaller/Ruby1.8.7/lib/ruby/1.8/webrick/httpserver.rb:104:in `service'
C:/RailsInstaller/Ruby1.8.7/lib/ruby/1.8/webrick/httpserver.rb:65:in `run'
C:/RailsInstaller/Ruby1.8.7/lib/ruby/1.8/webrick/server.rb:173:in `start_thread'
C:/RailsInstaller/Ruby1.8.7/lib/ruby/1.8/webrick/server.rb:162:in `start'
C:/RailsInstaller/Ruby1.8.7/lib/ruby/1.8/webrick/server.rb:162:in `start_thread'
C:/RailsInstaller/Ruby1.8.7/lib/ruby/1.8/webrick/server.rb:95:in `start'
C:/RailsInstaller/Ruby1.8.7/lib/ruby/1.8/webrick/server.rb:92:in `each'
C:/RailsInstaller/Ruby1.8.7/lib/ruby/1.8/webrick/server.rb:92:in `start'
C:/RailsInstaller/Ruby1.8.7/lib/ruby/1.8/webrick/server.rb:23:in `start'
C:/RailsInstaller/Ruby1.8.7/lib/ruby/1.8/webrick/server.rb:82:in `start'
rack (1.4.1) lib/rack/handler/webrick.rb:13:in `run'
rack (1.4.1) lib/rack/server.rb:265:in `start'
railties (3.2.1) lib/rails/commands/server.rb:70:in `start'
railties (3.2.1) lib/rails/commands.rb:55
railties (3.2.1) lib/rails/commands.rb:50:in `tap'
railties (3.2.1) lib/rails/commands.rb:50
script/rails:6:in `require'
script/rails:6
SessionController：
class SessionsController < ApplicationController
def create
auth = request.env["omniauth.auth"]
puts "printing"
puts auth
session[:rtoken] = params[:token]
session[:rsecret] = params[:secret]
client = LinkedIn::Client.new("cus7tde3g4pe", "jKf6ZYgf8JhMoIJ4")
if session[:atoken].nil?
pin = params[:oauth_verifier]
atoken, asecret = client.authorize_from_request(session[:rtoken], session[:rsecret], pin)
session[:atoken] = atoken
session[:asecret] = asecret
else
client.authorize_from_access(session[:atoken], session[:asecret])
end
@profile = client.profile
@connections = client.connections
end
#user = User.find_by_provider_and_uid(auth["provider"], auth["uid"]) || User.create_with_omniauth(auth)
session[:user_id] = profile.name
redirect_to root_url, :notice => "Signed in!"
#end
def destroy
session[:user_id] = nil
redirect_to root_url, :notice => "Signed out!"
end
end
Full Trace :
C:/linkedin/lovelinkedin/app/controllers/sessions_controller.rb:21: undefined local variable or method `session' for Ses
sionsController:Class (NameError)
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/activesupport-3.2.1/lib/active_support/dependencies.rb:2
51:in `require'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/activesupport-3.2.1/lib/active_support/dependencies.rb:2
51:in `require'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/activesupport-3.2.1/lib/active_support/dependencies.rb:2
36:in `load_dependency'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/activesupport-3.2.1/lib/active_support/dependencies.rb:2
51:in `require'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/activesupport-3.2.1/lib/active_support/dependencies.rb:3
59:in `require_or_load'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/activesupport-3.2.1/lib/active_support/dependencies.rb:3
13:in `depend_on'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/activesupport-3.2.1/lib/active_support/dependencies.rb:2
25:in `require_dependency'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/railties-3.2.1/lib/rails/engine.rb:439:in `eager_load!'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/railties-3.2.1/lib/rails/engine.rb:438:in `each'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/railties-3.2.1/lib/rails/engine.rb:438:in `eager_load!'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/railties-3.2.1/lib/rails/engine.rb:436:in `each'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/railties-3.2.1/lib/rails/engine.rb:436:in `eager_load!'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/railties-3.2.1/lib/rails/application/finisher.rb:53
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/railties-3.2.1/lib/rails/initializable.rb:30:in `instanc
e_exec'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/railties-3.2.1/lib/rails/initializable.rb:30:in `run'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/railties-3.2.1/lib/rails/initializable.rb:55:in `run_ini
tializers'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/railties-3.2.1/lib/rails/initializable.rb:54:in `each'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/railties-3.2.1/lib/rails/initializable.rb:54:in `run_ini
tializers'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/railties-3.2.1/lib/rails/application.rb:136:in `initiali
ze!'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/railties-3.2.1/lib/rails/railtie/configurable.rb:30:in `
send'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/railties-3.2.1/lib/rails/railtie/configurable.rb:30:in `
method_missing'
from C:/linkedin/lovelinkedin/config/environment.rb:5
from ./test/test_helper.rb:2:in `require'
from ./test/test_helper.rb:2
from C:/linkedin/lovelinkedin/test/unit/helpers/linkedin_helper_test.rb:1:in `require'
from C:/linkedin/lovelinkedin/test/unit/helpers/linkedin_helper_test.rb:1
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/rake_test_loader.rb:15:in `require
'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/rake_test_loader.rb:15
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/rake_test_loader.rb:4:in `select'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/rake_test_loader.rb:4
C:/linkedin/lovelinkedin/app/controllers/sessions_controller.rb:21: undefined local variable or method `session' for Ses
sionsController:Class (NameError)
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/activesupport-3.2.1/lib/active_support/dependencies.rb:2
51:in `require'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/activesupport-3.2.1/lib/active_support/dependencies.rb:2
51:in `require'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/activesupport-3.2.1/lib/active_support/dependencies.rb:2
36:in `load_dependency'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/activesupport-3.2.1/lib/active_support/dependencies.rb:2
51:in `require'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/activesupport-3.2.1/lib/active_support/dependencies.rb:3
59:in `require_or_load'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/activesupport-3.2.1/lib/active_support/dependencies.rb:3
13:in `depend_on'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/activesupport-3.2.1/lib/active_support/dependencies.rb:2
25:in `require_dependency'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/railties-3.2.1/lib/rails/engine.rb:439:in `eager_load!'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/railties-3.2.1/lib/rails/engine.rb:438:in `each'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/railties-3.2.1/lib/rails/engine.rb:438:in `eager_load!'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/railties-3.2.1/lib/rails/engine.rb:436:in `each'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/railties-3.2.1/lib/rails/engine.rb:436:in `eager_load!'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/railties-3.2.1/lib/rails/application/finisher.rb:53
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/railties-3.2.1/lib/rails/initializable.rb:30:in `instanc
e_exec'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/railties-3.2.1/lib/rails/initializable.rb:30:in `run'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/railties-3.2.1/lib/rails/initializable.rb:55:in `run_ini
tializers'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/railties-3.2.1/lib/rails/initializable.rb:54:in `each'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/railties-3.2.1/lib/rails/initializable.rb:54:in `run_ini
tializers'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/railties-3.2.1/lib/rails/application.rb:136:in `initiali
ze!'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/railties-3.2.1/lib/rails/railtie/configurable.rb:30:in `
send'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/railties-3.2.1/lib/rails/railtie/configurable.rb:30:in `
method_missing'
from C:/linkedin/lovelinkedin/config/environment.rb:5
from ./test/test_helper.rb:2:in `require'
from ./test/test_helper.rb:2
from C:/linkedin/lovelinkedin/test/functional/linkedin_controller_test.rb:1:in `require'
from C:/linkedin/lovelinkedin/test/functional/linkedin_controller_test.rb:1
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/rake_test_loader.rb:15:in `require
'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/rake_test_loader.rb:15
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/rake_test_loader.rb:4:in `select'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/rake_test_loader.rb:4
请帮我解决这个问题，因为我是新人。
答案 0 :(得分：2)
您的sessions_controller问题的更新答案：
您必须在“操作”中使用“会话”，例如您当前的代码：
class SessionsController < ApplicationController
def create
# ... some code for create action
end
# NOTICE: these 4 lines of code should be placed in an "action"
#user = User.find_by_provider_and_uid(auth["pr
session[:user_id] = profile.name
redirect_to root_url, :notice => "Signed in!"
#end
def destroy
# ... some code for destroy action
end
end
你应该将4行代码移动到一个动作中，这样Rails就可以重新调整“session”：
class SessionsController < ApplicationController
def create
# ... some code for create action
session[:user_id] = profile.name
redirect_to root_url, :notice => "Signed in!"
end
=============
上一个问题的回答：
如果您使用的是Rails3，则必须将每个rubygems添加到Gemfile中，例如：
gem "rake", "0.8.7"
gem 'rails', '3.0.5'
gem 'linkedin'
这里，通过添加gem 'linkedin'，ruby代码能够包含来自'linkedin'gem的所有内容。
DEPRECATED Rails 2.x WAY：如果你不这样做，你必须在控制器中添加require语句，例如：
# don't do this if you are using Gemfile
require 'linkedin'
class UsersController < ApplicationController
def index
# ...
end