Ruby on Rails 中的堆栈级别太深错误 [英] Stack level too deep error in Ruby on Rails
问题描述
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 控制台执行以下命令.
I'm having a stack level too deep error using Ruby 1.8.7 with Rails 3.0.4 and with the rails console I performed the following commands.
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
推荐答案
我已经找到了这个问题的解决方案...
I've found the solution to this issue...
我使用的是 Rails 3,我的类看起来像这样(有问题的方法也是这样)
I'm using Rails 3 and my class looks like this (and the problematic methods was this too)
class Organization < ActiveRecord::Base
def self.parents
@organizations = self.find :all, :conditions => ['is_company = ? ',true]
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
#...
end
我确实必须在代码中进行大量修改才能找出线路上的 named_scope 有问题
I did have to hack a lot in the code to find out something was wrong with the named_scope on the line
@organizations = self.find :all, :conditions => ['is_company = ? ',true]
所以我不得不把它改成这样
So I had to change it to something like this
@organizations = Organization.where("is_company = ?",true)
但它也错了..所以我决定在类名下面添加一个作用域,这样最终的代码看起来像这样:
But it was wrong too.. So I decided to add an scope for this below the class name so the final code looks like this:
class Organization < ActiveRecord::Base
scope :company, where("is_company = ?",true)
def self.parents
@organizations = self.company
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
#...
end
因此将这一行与范围一起使用
So using this line with the scope
@organizations = self.company
它在代码的每个部分都完美无缺.
it worked flawlessly in every part of the code.
我想知道在使用类方法时是否不推荐使用 named_scope 或者从现在开始不支持它们并抛出错误而不是之前的警告
I was wondering if the named_scope is deprecated when using class methods or they are not supported from now and throws an error and not a warning before
感谢您的帮助狮子座
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