2012-08-27 57 views
0

我想捕獲產生路由錯誤的URL。我的最終目標是更改網址上的網域,以檢查它是否存在於我們的舊網站上(更改了網域),如果是,則重定向到舊網站。這是我所做的。Rails:捕獲產生ActionController :: RoutingError的URL

unless Rails.application.config.consider_all_requests_local 
    rescue_from Exception, with: :render_500 
    rescue_from ActionController::RoutingError, with: :check_old_site 
    rescue_from ActionController::UnknownController, with: :render_404 
    rescue_from ActionController::UnknownAction, with: :render_404 
    rescue_from ActiveRecord::RecordNotFound, with: :render_404 
end 

private 

def check_old_site(exception) 
    #Need to edit the URL but I need access to before I can write the code to modify 
    captured_and_modified_url = ??? 
    case Net::HTTP.get_response(URI.parse(captured_and_modified_url)) 
    when Net::HTTPSuccess then redirect_to captured_and_modified_url 
    else render_404(exception) 
    end 
end 

def render_404(exception) 
    @not_found_path = exception.message 
    respond_to do |format| 
    format.html { render template: 'errors/error_404', layout: 'layouts/application', status: 404 } 
    format.all { render nothing: true, status: 404 } 
    end 
end 

因此,對於這個問題,我只想得到404錯誤的網址。感謝您的任何幫助。

回答

0

前一陣子說出來。 request.path

def check_old_site(exception) 
    exception_url = "http://old.richarddawkins.net#{request.path}" 
    case Net::HTTP.get_response(URI.parse(exception_url)) 
    when Net::HTTPSuccess then redirect_to exception_url 
    else render_404(exception) 
    end 
end 
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