Ruby on Rails Facebook Graph API OAuth錯誤＃506重複的狀態消息

Question

我有一個Rails應用程序發佈到Facebook。爲了防止兩次發佈相同消息的錯誤，我進行了救援。我想讓我的應用程序只是通知用戶並繼續前進，但似乎無法挽救此錯誤。

這是我的代碼：

begin 
    current_user.facebook.feed!(:message => 'THIS IS A TEST PLEASE IGNORE::Hello, Facebook!') 
rescue FbGraph::Unauthorized 
    flash[:alert] = "Already Posted" 
end 
redirect_to show(@track) 

我此代碼得到的錯誤是：

OAuthException ::（＃506）複製狀態消息

Answer 1

爲什麼搶救從FbGraph::Unauthorized當你收到OAuthException錯誤？

begin 
    current_user.facebook.feed!(:message => 'THIS IS A TEST PLEASE IGNORE::Hello, Facebook!') 
rescue OAuthException 
    flash[:alert] = "Already Posted" 
end 
redirect_to show(@track) 

Answer 2

嘗試：

begin 
    current_user.facebook.feed!(:message => 'THIS IS A TEST PLEASE IGNORE::Hello, Facebook!') 
rescue => e 
    if(e.fb_error_type == "OAuthException" 
    flash[:alert] = "Already Posted" 
    end 
end