2012-09-13 54 views
2

我复制并粘贴Heroku的教程中关于建立一个画布应用程序的代码,以在这里看到的Heroku托管的代码。 https://devcenter.heroku.com/articles/facebook-ruby但是,我收到这个回溯(见下面)与omniauth有关的错误。Heroku的Facebook的帆布应用程序教程:宣誓错误

任何人都可以解释

NoMethodError at/
undefined method `include?' for nil:NilClass 
file: builder.rb location: call line: 29 

这些都是宝石,它使用

gem 'sinatra', '1.0' 
gem 'oa-oauth', '0.1.6' 



BACKTRACE 
(condense) 
JUMP TO: GET POST COOKIES ENV 
/Users/michael/.rvm/gems/[email protected]/gems/oa-core-0.1.6/lib/omniauth/builder.rb in call 
     @ins << @app unless @ins.include?(@app) 
/Users/michael/.rvm/gems/[email protected]/gems/rack-protection-1.2.0/lib/rack/protection/xss_header.rb in call 
     status, headers, body = @app.call(env) 
/Users/michael/.rvm/gems/[email protected]/gems/rack-protection-1.2.0/lib/rack/protection/base.rb in call 
     result or app.call(env) 
/Users/michael/.rvm/gems/[email protected]/gems/rack-protection-1.2.0/lib/rack/protection/base.rb in call 
     result or app.call(env) 
/Users/michael/.rvm/gems/[email protected]/gems/rack-protection-1.2.0/lib/rack/protection/path_traversal.rb in call 

主代码

index.erb

<%=session['fb_error']%> 

<% if session['fb_auth'] %> 
    <a href='logout'><img src='images/fb_logout_button.png'></a> 
<% else %> 
    <a href='auth/facebook'><img src='images/fb_login_button.png'></a> 
<% end %> 

<h3><%= 'Hello, ' + session['fb_auth']['user_info']['first_name'] + ', ' if session['fb_token'] %>Welcome to my list of interesting articles.</h3> 

<table> 
    <% @articles.each do |article| %> 
    <tr> 
    <td class='article'>- <a href='<%=article[:url]%>' target='_blank'><%=article[:title]%></a></td> 
    <td> 
     <% if session['fb_auth'] %> 
     <iframe src="http://www.facebook.com/plugins/like.php?href=<%=article[:url]%>&amp;layout=button_count&amp;show_faces=true&amp;width=450&amp;action=like&amp;colorscheme=light&amp;height=21" scrolling="no" frameborder="0" style="border:none; overflow:hidden; width:450px; height:21px;" allowTransparency="true"></iframe> 
     <% end %> 
    </td> 
    </tr> 
    <% end %> 
</table> 

<% if session['fb_auth'] %> 
    <hr /> 
    <p><span class='like_site'>Do you like this site?</span></p> 
    <p><iframe src="http://www.facebook.com/plugins/like.php?href=http%3A%2F%2Ffaceboku.heroku.com%2F&amp;layout=standard&amp;show_faces=true&amp;width=450&amp;action=like&amp;colorscheme=light&amp;height=80" scrolling="no" frameborder="0" style="border:none; overflow:hidden; width:450px; height:80px;" allowTransparency="true"></iframe></p> 
<% end %> 

Faceboku.rb

equire 'sinatra' 
require 'omniauth/oauth' 

enable :sessions 


#Here you have to put your own Application ID and Secret 
APP_ID = "495940167082961" 
APP_SECRET = "686da25c0fdd04a6f61b287bb0d5c9aa" 

use OmniAuth::Builder do 
    provider :facebook, APP_ID, APP_SECRET, { :scope => 'email, status_update, publish_stream' } 
end 

get '/' do 
    @articles = [] 
    @articles << {:title => 'Deploying Rack-based apps in Heroku', :url => 'http://docs.heroku.com/rack'} 
    @articles << {:title => 'Learn Ruby in twenty minutes', :url => 'http://www.ruby-lang.org/en/documentation/quickstart/'} 

    erb :index 
end 

get '/auth/facebook/callback' do 
    session['fb_auth'] = request.env['omniauth.auth'] 
    session['fb_token'] = session['fb_auth']['credentials']['token'] 
    session['fb_error'] = nil 
    redirect '/' 
end 

get '/auth/failure' do 
    clear_session 
    session['fb_error'] = 'In order to use this site you must allow us access to your Facebook data<br />' 
    redirect '/' 
end 

get '/logout' do 
    clear_session 
    redirect '/' 
end 

def clear_session 
    session['fb_auth'] = nil 
    session['fb_token'] = nil 
    session['fb_error'] = nil 
end 
+0

2nding这个答案,我在下面的教程以及并不能获得它工作。它似乎是捆绑器无法找到omniauth宝石。 –

+0

它似乎是Omniauth的构建器类在可能依赖于环境的@ins变量上窒息。 –

+0

嘿,伙计们,我写了那个教程,我没有时间去查看它并更新它,但我很快就会做,请耐心等待。当它更新时,我会通过这个帖子告诉你们。谢谢! – raf

回答

1

复制从意见的答案,以从“未答复”过滤器中删除了这个问题:

嘿,伙计们,我写的教程......我更新了tuto和代码,现在一切都好了,请告诉我,如果没有。它不显示一些图片,因为我需要等待Heroku的批准,但它的工作原理反正:https://devcenter.heroku.com/articles/facebook-ruby

〜每raf