尝试编辑或创建新条目时的rails_admin ArgumentError

Question

我在尝试创建新的限制或编辑限制时遇到此错误(如下模型)

Rails_admin/main中的ArgumentError #ArgumentError

显示/Users/deini/.rvm/gems/ruby-2.0.0-p195/gems/rails_admin-0.4.9/app/views/rails_admin/main/_form_filtering_select.html.haml在第11行出现的位置：

参数数量错误(0表示1+)

提取的源代码(在第11行附近)：(selected_id = field.selected_id)

    selected_id = selected.send(field.associated_primary_key)
     selected_name = selected.send(field.associated_object_label_method)
   else
     selected_id = field.selected_id
     selected_name = field.formatted_value
   end

System.rb

class System < ActiveRecord::Base
  has_many :attachments

  has_many :limitations
  has_many :companies, :through => :limitations

  accepts_nested_attributes_for :attachments
  accepts_nested_attributes_for :companies

  attr_accessible :conf_type, :version, :hardware_type, :name, :attachments_attributes, :company_ids, :companies_attributes

  rails_admin do
    list do
      exclude_fields :created_at, :updated_at
    end
  end

end

company.rb

  class Company < ActiveRecord::Base
  belongs_to :distributor
  has_many :users, dependent: :destroy

  has_many :limitations
  has_many :systems, :through => :limitations

  accepts_nested_attributes_for :limitations

  attr_accessible :distributor_id, :name, :system_ids, :email, :limitations_attributes

  rails_admin do
    list do
      exclude_fields :custom_url, :created_at, :updated_at
    end

    edit do
      exclude_fields :custom_url, :users
    end
  end

end

limitation.rb

class Limitation < ActiveRecord::Base
  belongs_to :company
  belongs_to :system
  attr_accessible :company_id, :system_id, :version_limit
end

我没有在我的rails_admin中修改任何东西，你知道我做错了什么吗？

Answer 1

实际上，我也遇到了同样的错误。但是，当我在整个代码中将名称System更改为其他名称(包括模型、表名和所有名称)时，我的代码开始正常工作。尝试使用其他单词更改名称System。