在Rails中堆棧級別過深錯誤

Question

我在Rails中發現了這個錯誤，並且沒有其他信息可以幫助我找出原因。

SystemStackError in UserController#students 
stack level too deep 

我的用戶控制器如下

class UserController < ApplicationController 
    before_filter :authenticate_user!, :except => [:show, :students, :mentors] 
    ... 
    def students 
    @users = Student.where(:verify_code => 'VERIFIED') 
    end 
end 

即使當我刪除@users行的錯誤仍然存​​在。

編輯：錯誤似乎發生在除了devise_for :users和to_root之外的每一條路徑，這意味着只是用戶控制器。

用戶模型

require 'json' 
require 'socket' 

class User < ActiveRecord::Base 
    serialize :roles 
    devise :database_authenticatable, :registerable, 
    :recoverable, :rememberable, :trackable, :validatable 
    validates :ign, :server, :roles, :presence => true 
    validate :summoner_exists 
    validate :valid_roles 
    attr_accessible :email, :password, :password_confirmation, :remember_me, :ign, :server, :tier, :roles, :type 


    def valid_roles 
    valid_role_array = ['Top', 'Mid', 'Jungle', 'AD Carry', 'Support'] 
    self.roles.each do |role| 
     unless valid_role_array.include?(role) 
     self.roles.delete(role) 
     end 
    end 
    end 

    def summoner_verified? 
    return self.verify_code == 'VERIFIED' 
    end 

    def summoner_verify 
    rune_pages = shurima_api(self.server, 'rune_pages', self.acctid) 
    unless rune_pages 
     return false 
    else 
     rune_pages.each do |page| 
     if (page['name'] == self.verify_code) 
      self.verify_code = 'VERIFIED' 
      self.save 
      return true 
     end 
     end 
    end 
    return false 
    end 

    def summoner_exists 
    json = shurima_api(self.server, 'summoner', self.ign) 
    unless json 
     errors.add(:ign, "The summoner name \"#{self.ign}\" doesn't exist on #{self.server}") 
    else 
     self.summonerid = json['summonerId'] 
     self.acctid = json['acctId'] 
     self.verify_code = Array.new(10){rand(36).to_s(36)}.join 
     eligible_to_mentor 
    end 
    end 

    def eligible_to_mentor 
    leagues = shurima_api(self.server, 'leagues', self.summonerid) 
    unless leagues 
     errors.add(:ign, "That summoner doesn't seem to meet the requirements to become a mentor. Make sure you're at least in a Platinum League") 
     return false 
    end 
    leagues.each do |league| 
     if (league['queue'] == 'RANKED_SOLO_5x5') 
     self.tier = league['tier'] 
     end 
    end 
    eligible_tiers = ['PLATINUM', 'DIAMOND', 'CHALLENGER'] 
    if (self.type == 'Mentor' && !eligible_tiers.include?(self.tier)) 
     errors.add(:mentor, "Mentors must be at least PLATINUM.") 
    end 
    end 

    def shurima_api(server, method, args) 
    host, port = 'ip removed', 714 
    TCPSocket.open(host, port) do |socket| 
     ready = IO.select([socket], [socket], nil, 8) 
     return false unless ready 
     socket.puts server + "&" + method + "&" + args.to_s 
     message = socket.gets.chomp 
     if message == '"Unknown error"' 
     return false 
     end 
     return JSON.parse(message) 
    end 
    end 
end 

Answer 1

我最終通過重命名request方法request_mentor，因爲這是造成無限循環固定它。