堆棧級別FriendshipsController中的SystemStackError太深＃請求

Question

我只在Web測試中出現此錯誤。通過命令行測試每一行，一切正常。被請求的，被接受的朋友 - 一切都會被正確顯示和添加。但是，當我嘗試使用web表單，我總是得到，在控制器指着堆棧層次過深系統誤差和傳遞正確的參數：{「ID」 =>「3」}

User.rb

has_many :friendships 

    has_many :friends, 
      :through => :friendships, 
      :source => :friend, 
      :conditions => "status = 'accepted'", 
      :order => :created_at 


    has_many :requested_friends, 
      :through => :friendships, 
      :source => :friend, 
      :conditions => "status = 'requested'", 
      :order => :created_at 

friendship.rb

class Friendship < ActiveRecord::Base 
    attr_accessible :user, :friend, :status, :user_id, :friend_id 
    belongs_to :user 
    belongs_to :friend, :class_name => "User", :foreign_key => 'friend_id' 

    def self.request(user, friend) 
    return false if are_friends(user, friend) 
    return false if user == friend 
    f1 = self.new(:user_id => user.id, :friend_id => friend.id, :status => "pending") 
    f2 = self.new(:user_id => friend.id, :friend_id => user.id, :status => "requested") 
    transaction do 
     f1.save 
     f2.save 
    end 
    end 
def self.are_friends(user, friend) 
    return false if user == friend 
    return true unless find_by_user_id_and_friend_id_and_status(user, friend, "accepted").nil? 
    return true unless find_by_user_id_and_friend_id_and_status(friend, user, "accepted").nil? 
    false 
    end 

    def self.are_friends_pending(user, friend) 
    return false if user == friend 
    return true unless find_by_user_id_and_friend_id_and_status(user, friend, "pending").nil? 
    return true unless find_by_user_id_and_friend_id_and_status(friend, user, "requested").nil? 
    false 
    end 

FriendshipsController

def request 
    @user = current_user 
    @friend = User.find(params[:id]) 
    unless @friend.nil? 
     if Friendship.request(@user, @friend) 
     flash[:notice] = "friend request sent" 
     else 
     flash[:notice] = "friend request could not be sent" 
     end 
    end 
    redirect_to :back 
    end 

_userlist.html.erb

<div> 
    <ul> 
     <% User.each do |f|%> 

     <li> 

      <%= link_to "#{f.full_name}", user_path(f.id)%> 
      <% if Friendship.are_friends(current_user.id,f.id)%> 
      <label class="label">is a friend</label> 
      <%else%> 
      <%= link_to "Add Friend", addfriend_friendships_path(:id => f.id)%> 
      <%end%> 

     </li> 
     <%end%> 
    </ul> 

</div> 

的routes.rb

resources :friendships do 
    collection do 
     get 'request',:as=>"addfriend" 
     get 'accept',:as=>"accept_fr" 
     get 'reject',:as=>"reject_fr" 
    end 
    end 

因爲一切都在命令行工作我真的不明白，爲什麼我得到這個錯誤。任何人都可以看到這個問題？

Answer 1

夫婦的建議，

重命名你的控制器的方法，request我想會太類似於HTTP請求，我建議request_friendship或相似。

請勿使用redirect_to :back，請嘗試重定向到特定路徑/ URL並查看是否修復了任何內容。

恐怕不是在這個問題足夠的信息來明確地給出一個答案，從而只是猜測真的...