0
我有廣告系列和消息。廣告系列包含許多屬於廣告系列的訊息和訊息。我爲模型設置嵌套屬性,並在我看來,我試圖創建一個與模型相關的消息。下面的代碼:嵌套屬性的另一個質量分配問題
class Campaign < ActiveRecord::Base
attr_accessible :message_id, :name, :group_id, :user_id, :messages_attributes
has_many :messages
belongs_to :group
belongs_to :user
accepts_nested_attributes_for :messages
end
class Message < ActiveRecord::Base
attr_accessible :body, :sent, :sent_at
belongs_to :user
belongs_to :campaign
has_many :responses
end
和形式:
= form_for @campaign, :html => {:class => 'form-horizontal'} do |f|
...removed error output code...
%legend
Enter the campaign information
.field
.control-group
%label.control-label
Campaign Name
.controls
= f.text_field :name
= f.collection_select(:group_id, current_user.groups.all, :id, :name, :include_blank => true)
= f.fields_for :message do |m|
= m.text_area :body, :rows => 3
.form-actions= f.submit "#{params[:action] == 'new' ? 'Create New Campaign' : 'Save Campaign'}", :class => 'btn btn-success'
我知道這可能是很簡單的東西,但我不斷收到以消息的質量分配問題。這裏的錯誤:
ActiveModel::MassAssignmentSecurity::Error (Can't mass-assign protected attributes: message):
app/controllers/campaigns_controller.rb:18:in `update'
終於PARAMS是那些獲得從表單創建:
Parameters: {"utf8"=>"✓", "authenticity_token"=>"(removed)", "campaign"=>{"name"=>"Weekly Poker", "group_id"=>"1", "message"=>{"body"=>"s"}}, "commit"=>"Save Campaign", "id"=>"1"}
它應該是'= f.fields_for:messages do | m |',複數。 – veritas1
@ veritas1我曾嘗試過,然後頁面上的文本框消失...真的很奇怪。任何想法爲什麼會發生? –
你的控制器裏有'@ campaign.messages.build'嗎? – veritas1