ruby-on-rails - Ruby on Rails 中的堆栈级别太深错误

Question

我在使用 Ruby 1.8.7 和 Rails 时遇到堆栈级别太深的错误 3.0.4 并使用 Rails 控制台执行了以下命令。

leo%>rails console
Loading development environment (Rails 3.0.4)
ruby-1.8.7-head > leo = Organization.find(1)

SystemStackError: stack level too deep
from /app/models/organization.rb:105:in `parents'

这是有问题的对象..

class Organization < ActiveRecord::Base

  has_many                  :group_organizations, :dependent =>
:delete_all
  has_many                  :groups, :through => :group_organizations

  has_many                  :orders
  has_many                  :product_contracts

  has_many                  :people
  accepts_nested_attributes_for :people

  has_many                  :addresses
  accepts_nested_attributes_for :addresses

  has_many                  :organizations
  has_many                  :departments
  has_many                  :organization_credits

  has_many                  :documents

  validates_presence_of     :name



    def self.parents
      @organizations = Organization.where("is_company = ?",true)
      #@organization_parents = []
      select_choice = I18n.t("select") + " "+ I18n.t("segments.description")
      @organization_parents = [select_choice]
      for organization in @organizations
        @organization_parents << [organization.name, organization.id]
      end
      return @organization_parents
    end

Answer 1

当您不小心递归地更改属性时，通常会发生此错误。如果您在用户模型中有一个用户名属性，以及一个名为用户名的虚拟属性，即直接更改用户名，您最终会调用虚拟，虚拟再次调用虚拟等等。因此，看看是否有什么东西就像在您的代码中某处发生的那样。